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12-23-97 v � f MINUTES OF THE WORKSHOP MEETING HELD IN COMMISSION CHAMBERS ON TUESDAY, DECEMBER 23, 1997. The meeting, which was held for the purpose of discussing options recommended by the Howell Park Review Committee in the core city drainage project, was called to order by Mayor Shaughnessy. Present, in addition to the Mayor, were Commissioners Beaver, Borno, Meserve and Mitchelson. Also present were City Manager Jarboe, Public Works Director Bob Kosoy and City Clerk King. The Mayor indicated it was the intent of the City Commission to find a solution which would provide adequate drainage without negatively impacting Howell Park. She confirmed that each commissioner had received a packet of information on the issue being discussed. The Mayor introduced Mike Cullum, Patrick Victor and Ken John of the St. Johns River Water Management District (SJRWMD). She also thanked Commissioner Borno and the members of the Howell Park Review Committee who had worked hard to come up with the options being considered. She also thanked city staff for their part in the process and indicated the City Commission would continue working until they felt sufficiently informed on the project. The City Manager pointed out that the City Commission was not obligated to adopt any single option as presented but could select a mix and match of any of the options. He presented four options which had been suggested by the Public Works Department and a copy of the Public Works report dated December 14, 1997 is attached hereto as Exhibit A. Mike Cullum reported that the SJRWMD had a 9-member governing board and had jurisdiction over nineteen counties. He gave an overview of their responsibilities and indicated that applications for permits were considered based on three criteria - (1) protection of wetlands, (2) flood protection and (3) water quality protection. He pointed out that the project as designed by England, Thims& Miller had been approved and permitted by the SJRWMD and indicated that consideration of any redesign would be based on this criteria. He indicated he had read the committee's report and felt that some good ideas had been presented. The Mayor then directed several questions to the members of SJRWMD which are summarized as follows: ► It was confirmed that Selva Lagoon is Waters of the State. ► Does a retrofit project need new treatment areas? - If run-off is not increased, no additional treatment areas would be necessary ► If discharge was not increased would project need to be permitted? - If the direction of the flow was changed a permit would be required, however, exemptions could be granted if certain conditions were met ► Are retention ponds required? - There are various options available ► What level of treatment would be required compared with new projects? - Such projects may not be required to meet the full SJRWMD requirements. Howell Park project did not meet full requirements but the engineers had worked with SJRWMD regarding this project Documents Professionally Imaged by Advanced Data Solutions, Inc. Disc 1 - 10/16/00 Page Two Minutes of Commission Workshop December 23, 1997 ► and had negotiated what he considered was an excellent deal for the city ► Could pervious streets be used for treatment swales? - Yes ► Would frequency of street sweeping be considered in the permitting process? - Yes. This would be considered as part of the treatment train ► Would the city get additional credit for using existing wetlands for retention? - The SJRWMD does not usually allow wetlands to be used for retention since wetlands require clean water ► Do SJRWMD prefer natural treatment over piping/baffle boxes? -No preference if engineered properly ► Efficiency of baffle boxes? - Effective if properly designed and not hydraulically overloaded. Also would need to be maintained. ► Are baffle boxes a viable alternative? - Yes, they work well in some areas ► What frequency of maintenance would baffle boxes require? - It could be as often as once a month in wet season; less in dry season ► Swales deteriorate over time - Do SJRWMD monitor swales? - Swales need to be maintained and SJRWMD could require inspection by an engineer - Preferred treatment is detention ponds ► Where can baffle box sediment be disposed? - Could be used as fill material or taken to the landfill; not considered hazardous ► How frequently is pervious material used for paving, etc.? - Because of the cost, it is not used a lot; however, the city could get credit for pervious material used. Discussion ensued and the SJRWMD representatives commended the ETM engineers for their design for this project and indicated that a combination of baffle boxes and swales along some roads would appear to be appropriate for this area. It was suggested that the free-flowing artesian well in Howell Park could be capped and the area used for retention. It was also felt that while swales would provide treatment and percolation, they would not be appropriate for all areas. The City Manager felt that unless flooding was directed to swales or retention areas, thus increasing the flow, flooding relief would not be provided. Mr. Cullum indicated the SJRWMD would prefer to permit easily maintained systems since routine maintenance was often neglected. He felt that retention ponds were the easiest system to maintain. Former committee member Susan Bullock noted that the existing SJRWMD permit required only about one tenth of the treatment which would be required for a new project and inquired to what standard the city would be held if the project was redesigned. Mr. Cullum felt the city would receive significant consideration and agreed to work with the city on any option. At this time the Mayor called a recess and the meeting reconvened at 9:15 PM. Page Three Minutes of Commission Workshop i December 23, 1997 Hugh Mathews, England, Thims & Miller (ETM) engineer, gave an overview of their approach to this project and indicated that ETM had designed a project which he felt would be acceptable to the city, was cost effective, and would be permitted but indicated ETM would be willing to implement any plan the city wished. Mr. Mathews addressed the recommendations of the Howell Park Review Committee and presented cost estimates for the options. A copy of ETM report dated December 19, 1997, is attached hereto as Exhibit B. He indicated that the 5th Street entrance to Howell Park was a greater environmental concern than the 7th Street entrance because of the trees, and suggested deleting the retention pond at 5th Street and, instead, provide retention in the open area of the park. Mayor Shaughnessy pointed out that the CH2M Hill Storm Water Master Plan did not mention retention ponds and Mr. Mathews pointed out that the master plan was a conceptual plan only. Mr. Mathews presented photos taken during recent rains which illustrated how curbs and gutters and swales worked during those conditions. Mr. Mathews then responded to questions from the City Commission. Commissioner Meserve inquired how plan modifications would impact the construction schedule and Mr. Mathews indicated that as long as the area of retention was maintained, the project should not have to go through the permitting process again; however, he pointed out that a change from the curbs and gutters currently designed would be a major plan modification and would require several months. The City Manager referred to Public Works Alternate 2, Exhibit 4 - Utilize baffle boxes, reroute discharge to Plaza and Howell Park - (See Page 1 of attached Exhibit A) and indicated that he felt this may be a desirable option. The Mayor then entertained questions and comments from the audience. Alan Potter felt the incoming tide waters needed to be controlled. He also felt that the pipes in the project were oversized. Joe Posch pointed out the master plan did not require retention ponds and felt that ETM had not designed the project in accordance with their proposal. Stephen Kuti and Don Phillips also felt that incoming tides needed to be controlled. There being no further discussion or comments the Mayor declared the meeting adjourned at 11:05 PM. Maureen King Certified Municipal Clerk .iopa lm s3poM oggnd alp of 2uisissy `sanbouf 'D sauce f i0130nQ sxioM oilgnd `'a-d `AosoN 's .ago J 1N ix�a�Q SNNIOM DrIgnd paiedaM /Cauiouv 4'D `uasua f uu[ 3pa1D AID 'Su i?I uaaine Ja$eueN' !D `aogre f uzif lauoissnuuzo3 `uosiag3I1} oa4Z JOUOISSIUI IIo3 `0A.10SOW 1.1140f .zauoissLuIuIoD `oulog OTIN .I01.10!SSfU uroD `JOAuag pi1egoig ioAej `AssaugSnugs auuezns NOISSIWWO3 III3 HHS OS NOI SVSNHS H2ia `dQI2iOZ3 ' H3YHE 3LLNTIsy 3O ASIQ L661 `VVI aaqumac 3uaui.udaa sjaoM amp,' 'wag apuu0v paluasaad 3JodaH aa33iuiutoD MalAaj Baud IiantiOH Jill Jo SiSJiRUV 3SOD pun UOI3RUim1Xa aAI3L'JI;d11IOD - - i l d ai i S?12}OJv1 d _no )) H)< f f SUMMARY OF ANALYSIS OF ALTERNATE DESIGNS BASED ON EVALUATION OF HOWELL PARK REVIEW COMMITTEE REPORT THE ESTIMATED COSTS LISTED BELOW ARE PRELIMINARY,AND MUST BE THOROUGHLY RE-EVALUATED FOLLOWING FINAL DESIGN. COSTS INCLUDE SEWER AND WATER SYSTEM IMPROVEMENTS AND PAVING WITHIN THE BASE BID AREA OF THE UTILITY IMPROVEMENT PROJECT. DESIGN KEY POINTS SUMMARY OF ANALYSIS PRELIMINARY CONCEPT ESTIMATED COSTS OF BASE BID ITEMS TREATMENT Grass Swales,Baffle Boxes, Many Viable Suggestions, With All Elements of TRAIN Reduce Work in Howell Park, Some of Which Require More Redesigned Utility (PART OF Use Home Lot Swales,Cisterns, Extensive Analysis. Reduces Improvement Project REPORT Reverse Street Crowns, Reduce Tree Removal and Added, $6,806,000 RECOMMEN- Curb/Gutter Excavation in Howell Park by DATION NO. See Exhibit No. 1 Approx. 75%. 1) CURRENT Curb and Gutter,Howell Park This Design is Currently $6,235,000, Based on DESIGN Treatment Ponds, Lowered under Review Following 100% Cost Estimate Street Grades to Drain Properties Concerns over Tree Removal from Design Engineers See Exhibit No. 2 In and Near Howell Park, Design has Been Permitted. Pipe Design Handles the 2 Year Storm, and Street Design Routs 10 Year Storm to Howell Park. PW Revise Location of Ponds in Uses Basic Concept of $6,154,000, Savings of REVISION Howell Park Under Current Current Design,But Reduces $81,000 From Current NO. 1 Design to Use Existing Open Excavation in Howell Park Design Areas and Tree Removal by See Exhibit No.3 Approx.25%. Should be Minor Modification to Existing Permits PW Utilize Baffle Boxes,Reroute Use Swales Only Where With All Elements of REVISION Discharge to Plaza and Howell Feasible, Eliminates Howell Redesigned Utility NO. 2 Park Park Construction. Improvement Project See Exhibit No. 4 Assuming Design Alternate is Added, $6,679,000 Permitable, Comparative Analysis of the Howell Park Review Committee Report December 19, 1997 Page 1 SUMMARY OF ANALYSIS OF RECOMMENDATIONS 2 THROUGH 12 BASED ON EVALUATION OF HOWELL PARK REVIEW COMMITTEE REPORT THE ESTIMATED COSTS LISTED BELOW ARE PRELIMINARY,AND MUST BE THOROUGHLY RE-EVALUATED FOLLOWING FINAL DESIGN. RECOM. KEY POINTS SUMMARY OF ANALYSIS PRELIMINARY NO. ESTIMATED COSTS (REMAINING Investigate Discharging A. Possible Pump Station site A. $477,000,Assuming PART OF Stormwater to Other Drainage could be at the Selva Lagoon 12" Discharge Main for REPORT Basins: south of Fleet Landing,with 3,000 feet Through RECOMMEN- A. Sherman Creek a discharge pipe flowing east Easements to Old DATION NO. B. Hanna Park Lakes to Selva Marina Drive,then Sherry Drive West of 1) north to Sherman Creek. the Oceanwalk area. Concern of Impact to Sherman Creek Basin B. $646,000,Assuming B. Possible Pump Station site 12" Discharge Main for could be at the Selva Lagoon 5,500 feet Through south of Fleet Landing,with Easements a discharge pipe flowing east to Seminole Road,then north to the first Hanna Park Lake. Concern of Impact to Hanna Park System. More Extensive Design Required to Size Pumps and Pipes in Either Scenario. 2 Additional Inlets to Existing Existing System is Undersized For New Inlets and Drainage System for Design Storm,with Many Pipes ONLY,$338,000. Defective Pipes. Marginal Including Costs for Pipes would not be Replaced. Revised Improvements Does Not Resolve Flooding of to Water and Sewer Streets and Home Lots Systems, Paving and During Large Storms. Other Portions of Base Bid Project,Total Project Cost is estimated at$3,928,000. No costs for potential stormwater treatment is possible until review by Water Management District. Comparative Analysis of the Howell Park Review Committee Report December 19, 1997 Page 2 RECOM. KEY POINTS SUMMARY OF ANALYSIS PRELIMINARY NO. ESTIMATED COSTS 3 Reuse Portions of Existing Existing System is Undersized For New and Drainage System for Design Storm. The Replacement Inlets and Marginal Pipes and Inlets Pipes ONLY,$570,000. Would Require Replacement Including Costs for with Same Size Pipe. Does Revised Improvements Not Resolve Flooding of to Water and Sewer Streets and Home Lots Systems,Paving and During Large Storms. Other Portions of Base Bid Project,Total Project Cost is estimated at$3,928,000. No costs for potential stormwater treatment is possible until review by Water Management District. 4 Review Sanitary Sewer Possible Cost Savings IF For Current Design- Reconstruction (Includes Storm System Mains are $1,417,000 revisions to water system design) Relocated from Current For Potential Revised Design Position. Design-$1,211,000 Savings of$206,000 5 JEA Plan and Engineer Involve JEA in Final Design JEA'S estimate is Electrical System Improvements and Construction of Utility $400,000 for their Improvements,if Approved. portion and the city would pay$350,000 for service connections 6 Utilize Master Plan for The Master Plan and All Not Applicable Treatment Train Concepts Applicable Regulations Will be Followed in Any Treatment Train. 7 Evaluate Pervious Pavement Not Reliable or Acceptable Not Applicable for WMD Credit. 8 Increase Natural Infiltration Small Street Rights-of-Way Not Applicable Make Increase Difficult. Need Residents Aid to Contain Lot Runoff,and Not Increase Flooding. 9 Reduce Non-Point Source Requires City Ordinance and Not Applicable Pollution. Public Cooperation on Private Property. Comparative Analysis of the Howell Park Review Committee Report December 19, 1997 Page 3 RECOM. KEY POINTS SUMMARY OF ANALYSIS PRELIMINARY NO. ESTIMATED COSTS 10 Establish Control of Future Requires City to Perform Not Applicable Increases of Stormwater Runoff. Work on Private Property, with Significant Liability. 11 Concern for Long-Term Requires City to Perform Not Applicable Flooding and Property Damage Work on Private Property, with Significant Liability. 12 Improve Fleet Landing with Any Pump Station Design Pump Station $450,000 Pump Station, Maintain Water Must Consider Downstream Including Flap Gate Flow or Other Methods Impacts,and will be Other Items do not Expensive. Other Methods Increase Costs of Base must consider Impacts to Project. Selva Marina Golf Course, and Pump System Operation and Maintenance. Flap Gate may be Necessary to control High Tide Levels Comparative Analysis of the Howell Park Review Committee Report December 19, 1997 Page 4 COST El __ATE OF CORE CITY UTILITY CURRENT DESIGN QUANTITIES/COSTS REVISED DESIGN IMPROVEMENT PROJECT TREATMENT TRAIN 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit _ Quantity Price _ Cost Quantities Total Cost Design BASE BID AREA ONLY GENERAL ITEMS SITE PREPARATION LS $395,085.00 80.00% $316,068.00 80% MAINTENANCE OF TRAFFIC LS $50,000.00 $50,000.00 100% OFF-DUTY LAW ENFORCEMENT OFFICER MH 320 $20.00 $6,400.00 320 $6,400.00 100% BARRICADE TYPE I, II,DRUM ED 20,000 $0.35 $7,000.00 20,000 $7,000.00 100% BARRICADE TYPE III ED 4,000 $0.85 $3,400.00 4,000 $3,400.00 100% ADVANCE WARNING ARROW PANELS ED 1,000 $15.00 $15,000.00 1,000 $15,000.00 100% HIGH INTENSITY FLASHING LIGHTS TEMP.TYPE B ED 5,000 $1.25 $6,250.00 5,000 $6,250.00 100% VARIABLE MESSAGE SIGN TEMP. ED 250 $70.00 $17,500.00 250 $17,500.00 100% DUST CONTROL LS $25,000.00 $25,000.00 100% EROSION CONTROL AND POLLUTION ABATEMENT LS $75,000.00 $75,000.00 100% FIELD OFFICE DA 730 $50.00 $36,500.00 730 $36,500.00 100% PROJECT SIGN EA 2 $500.00 $1,000.00 2 $1,000.00 100% PHOTOGRAPHS&VIDEOTAPES LS $4,000.00 $4,000.00 100% AS-BUILT SURVEY DRAWINGS LS $15,000.00 $15,000.00 100% AASHTO CLASS A-3 SAND,ABOVE INVERT CY 3,600 $12.00 $43,200.00 3,600 $43,200.00 100% AASHTO CLASS A-3 SAND,BELOW INVERT CY 1,800 $15.00 $27,000.00 1,800 $27,000.00 100% SHERRY DRIVE LANDSCAPING LS $10,000.00 $10,000.00 100% MISC.LANDSCAPING ALLOWANCE LS $25,000.00 $25,000.00 100% SUBTOTAL GENERAL ITEMS $762,335.00 $683,318.00 90% PAGE 1 COST E: IATE OF CORE CITY UTILITYCURRENT DESIIQUANTITIES/COSTS REVISED DESIGN IMPROVEMENT PROJECT TREATMENT TRAIN 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design STORM DRAINAGE ITEMS I.. } I. .. . 12"PVC STORMSEWER(LOT SERVICES) LF 165 $30.00 $4,950.00 165 $4,950.00 100% - 15"RCP STORMSEWER LF 1,366 $30.00 $40,980,00 1366 $40,980.00 100% 18"RCP STORMSEWER LF 149 $32.00 $4,768.00 149 $4,768.00 100% 24"RCP STORMSEWER LF 1,347 $36,00 $48,492.00 1347 $48,492.00 100% 30"RCP STORMSEWER LF 4,318 $44.00 $189,992.00 $0.00 0% 36"RCP STORMSEWER LF 4,344 $56.00 $243,264.00 $0.00 0% 42"RCP STORMSEWER LF 2,017 $68.00 $137,156.00 $0.00 0% 48"RCP STORMSEWER LF 1,804 $76.00 $137,104.00 $0.00 0% 54"RCP STORMSEWER LF 46 $95.00 $4,370.00 $0.00 0% 60"RCP STORMSEWER LF 361 $118.00 $42,598.00 $0.00 0% 66"RCP STORMSEWER LF 741 $194.00 $143,754.00 $0.00 0% 72"RCP STORMSEWER LF 192 $200.00 $38,400.00 $0.00 0% 19"x30"ERCP STORMSEWER LF 0 $47.74 $0.00 5769 $275,439.06 NEW ITEM 24"x38"ERCP STORMSEWER LF 1,451 $66.00 $95,766.00 5029 $331,914.00 347% 29"X45"ERCP STORMSEWER LF 685 $64.00 $57,540.00 2410 $202,440.00 352% 34"x53"ERCP STORMSEWER LF 393 $102.00 $40,086.00 1804 $184,008.00 459% 38"x60"ERCP STORMSEWER LF $125.99 $0.00 46 $5,795.61 NEW ITEM 43"x68"ERCP STORMSEWER LF $156.59 $0.00 361 $56,529.55 NEW ITEM 48"x76"ERCP STORMSEWER LF $189.63 $0.00 933 $176,928.34 NEW ITEM CURB INLET TYPE"P"BOTTOM EA 63 $1,500.00 $94,500.00 63 $94,500.00 100% CURB INLET TYPE"J-1"BOTTOM 4' EA 3 $1,500.00 $4,500.00 3 $4,500.00 100% CURB INLET TYPE"J-1"BOTTOM 7' EA 12 $2,625.00 $31,500.00 12 $31,500,00 100% PAGE 2 • COST E MATE OF CORE CITY UTILITY CURRENT DESIGN QUANTITIES/COSTS REVISED DESIGN IMPROVEMENT PROJECT TREATMENT TRAIN 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost _ _ Quantities Total Cost Design CURB INLET TYPE"J-1"BOTTOM 8' EA 1 $3,000.00 $3,000.00 1 $3,000.00 100% CURB INLET TYPE"J-2'BOTTOM 4'x4' EA 15 $1,900.00 $28,500.00 15 $28,500.00 100% CURB INLET TYPE"J-2"BOTTOM 4'x5' EA 14 $2,150.00 $30,100.00 14 $30,100.00 100% CURB INLET TYPE"J-2"BOTTOM 4'x6' EA 4 $2,390.00 $9,560.00 4 $9,560.00 100% CURB INLET TYPE"J-2'BOTTOM 4'x7' EA 1 $2,625.00 $2,625.00 1 $2,625.00 100% CURB INLET TYPE"J-2"BOTTOM 45(8' EA 1 - $2,875.00 $2,875.00 1 $2,875.00 100% CURB INLET TYPE"J-2"BOTTOM 5'x5' EA 10 $2,390.00 $23,900.00 10 $23,900.00 100% CURB INLET TYPE"J-2"BOTTOM 6'x6' EA 6 $2,875.00 $17,250.00 6 $17,250.00 100% DITCH BOTTOM INLET TYPE"E" EA 4 $1,500.00 $6,000.00 4 $6,000.00 100% DITCH BOTTOM INLET TYPE"E""J-1"BOTTOM,4'x5' EA 2 $2,150.00 $4,300.00 2 $4,300.00 100% DITCH BOTTOM INLET TYPE"E""J-1"BOTTOM,6'x6' EA 1 $2,875.00 $2,875.00 1 $2,875.00 100% TYPE"P"STORM MANHOLE EA 13 $1,500.00 $19,500.00 13 $19,500.00 100% TYPE"J-1"STORM MANHOLE 4' EA 47 $1,500.00 $70,500.00 47 $70,500.00 100% TYPE"J-1"STORM MANHOLE 5' EA _65 $1,875.00 $121,875.00 65 $121,875.00 100% TYPE"J-1"STORM MANHOLE 6' EA 22 $2,250.00 $49,500.00 22 $49,500.00 100% TYPE"J-1"STORM MANHOLE 7' EA 1 $2,625.00 $2,625.00 1 $2,625.00 100% TYPE"J-1"STORM MANHOLE 8' EA 10 $3,000.00 $30,000.00 10 $30,000.00 100% TYPE"J-1"STORM MANHOLE 9' EA 3 $3,375.00_ $10,125.00 3 $10,125.00 100% TYPE"J-2"STORM MANHOLE 4'x5' EA 2 $2,150.00 $4,300.00 - 2 $4,300.00 100% TYPE"J-2'STORM MANHOLE 6'x6' EA 4 $2,875.00 $11,500.00 4 $11,500.00 100% TYPE"J-2"STORM MANHOLE 6'x8' EA 2 $3,350.00 $6,700.00 2 $6,700.00 100% TYPE"J-2"STORM MANHOLE 8'x9' EA 1 $4,100.00 $4,100.00 1 $4,100.00 100% MITERED END SECTION 66" EA 2 $5,800.00 $11,600.00 $0.00 0% PAGE 3 COST I MATE OF CORE CITY UTILITY CURRENT DESIGN QUANTITIES/COSTS REVISED DESIGN IMPROVEMENT PROJECT TREATMENT TRAIN 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity _ Price Cost Quantities Total Cost Design MITERED END SECTION 77' EA 1 $6,000.00 $6,000.00 $0.00 0% MITERED END SECTION 38"x60" EA $5,800.00 $0.00 1 $5,800.00 NEW ITEM MITERED END SECTION 48"x76" EA $6,000.00 $0.00 2 $12,000.00 NEW ITEM WOOD DECK OVER 66"IN HOWELL PARK EA 1 $7,500.00 $7,500.00 1 $7,500.00 100% WOOD DECK OVER 77'IN HOWELL PARK EA 1 $7,500.00 $7,500.00 1 $7,500.00 100% r ELEVENTH STREET BOX CULVERT LS $100,000.00 $100,000.00 100% PLAZA CULVERT MODIFICATION LS $20,000.00 $20,000.00 100% LAKE EXCAVATION IN HOWELL PARK LS $85,000.00 $0.00 0% CHANNEL EXCAVATION IN HOWELL PARK LS $40,000.00 $40,000.00 100% CHANNEL EXCAVATION BY CITY HALL LS $10,000.00 $10,000.00 100% FLEET LANDING WEIR REPLACEMENT LS $25,000.00 $25,000.00 100% CONCRETE BAFFLE BOXES IN SIDE STREETS EA $45,000.00 $0.00 13 $585,000.00 NEW ITEM CONCRETE DITCH PAVEMENT SY 92 $30.00 $2,760.00 $2,760.00 100% CLASS I CONCRETE FOR RETAINING WALLS CY 231 $500.00 $115,500.00 $115,500.00 100% UNDERDRAIN TYPE II LF 6,287 $15.00 $94,305.00 25.00% 1572 $23,576.25 25% MULCH PEDESTRIAN TRAIL W R.R.TIES LF 900 $10.00 $9,000.00 25.00% 225 $2,250.00 25% HOUSE SWALES SY $5.00 $0.00 15,556 $77,777.78 NEW ITEM HOUSE CISTERNS EA $250.00 $0.00 12 $3,000.00 NEW ITEM RED MAPLE EA 113 $175.00 $19,775.00 113 $19,775.00 100% BALD CYPRESS EA 100 $150.00 $15,000.00 100 $15,000.00 100% SYCAMORE EA 9 $250.00 $2,250.00 9 $2,250.00 100% SUBTOTAL STORM DRAINAGE ITEMS t .... $2,392,620.00 _ $2,999,143.59 125% PAGE 4 COST EATS OF CORE CITY UTILITY REVISED DESIGN • . _ CURRENT DESS QUANTITIES/COSTS IMPROVEMENT PROJECT TREATMENT TRAIN 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design ................... ..............„...................................................._..................„.................. .................................... .. ........„.................. .. SANITARY SEWER IMPROVEMENT ITEMS :i., n:] ,,..mmiiui:],i 10"PVC SEWER PIPE LF 2,081 $32.00 $66,592.00 60.00% 1,249 $39,955 60% 8"PVC SEWER PIPE LF 7,084 $26.00 $184,184.00 60.00% 4,250 $110,510 60% 10"DUCTILE IRON SEWER PIPE EA 2,390 $42.00 $100,380.00 60.00% 1,434 $60,228 60% 8"DUCTILE IRON SEWER PIPE EA 50 $34.00 $1,700.00 60.00% 30 $1,020 60% LINING 10"SEWER EA $33.00 $0.00 40.00% 1,788 $59,017 NEW ITEM LINING 8"SEWER EA $28.00 $0.00 40.00% 2,854 $79,901 NEW ITEM TYPE"A"SANITARY SEWER MANHOLE EA 38 $2,000.00 $76,000.00 60.00% 23 $45,600.00 60% LINING SANITARY SEWER MANHOLE EA $1,800.00 $0.00 40.00% 15 $27,360.00 NEW ITEM SANITARY SEWER SERVICE 6"PIPE TO ROW,EACH LOT EA 293 $400.00 $117,200.00 293 $117,200.00 100% CONNECTIONS TO EXISTING SANITARY MANHOLES EA 15 $3,000.00 $45,000.00 60.00% 9 $27,000.00 60% CONNECTION TO 2 EXISTING SANITARY MANHOLES 7TH STREET EA 1 $6,000.00 $6,000.00 1 $6,000.00 1 0 0% CONNECTION TO 2 EXISTING SANITARY MANHOLES 11TH STREET EA 1 ......,...... ............. ..$10„000.00_, $10,000.00 1 $10,000.00 100% SUBTOTAL SANITARY SEWER IMPROVEMENTS $583,791.60 96% .. ........ ...._.. ........ .. ... . . ... . .... .. ..... . I 1 :p W, :M ::;:];`MNig ; !Er.,.NRIONWigg: WiWRO;M fiA:;X:M;g1:,: A::iROI;NRU:0 'i0: :: . WATER DISTRIBUTION SYSTEM IMPROVEMENTS Egl]1M,'LiNnie.MiNiMiMI:!1::i:E :Caan.g.ViNi,:RiNi4!g.qM!N:g.:i::101iNgiMM!.igg!in! ffl:'i:ViMigi!i!ii!!!1ffili g!ii:i:I2iNi!!.i0iliffaiia!Mii,':'qP,'IHRgRg 12'DUCTILE IRON WATER PIPE LF 3,514 $36.00 $126,504.00 3514 $126,504.00 100% 12'PVC C-900 WATER PIPE LF 3,637 $28.00 $101,836.00 2437 $68,236.00 67% 12"GATE VALVE EA 25 $1,100.00 $27,500.00 21 $23,100.00 84% 8"DUCTILE IRON WATER PIPE LF 520 $32.00 $16,640.00 520 $16,640.00 1 0 0%, 8"PVC C-900 WATER PIPE LF 3,323 $24.00 $79,752.00 1023 $24,552.00 31% 8"GATE VALVE EA 11 $900.00 $9,900.00 . 5 $4,500.00 45% 6"DUCTILE IRON WATER PIPE LF 620 $22.00 $13,640.00 620 $13,640.00 1 0 0% 6"PVC C-900 WATER PIPE LF 4,469 $18.00 $80,442.00 2789 $50,202.00 62% PAGE 5 COST Es I(MATE OF CORE CITY UTILITY CURRENT DESIGN QUANTITIES/COSTS REVISED DESIGN I IMPROVEMENT PROJECT TREATMENT TRAIN 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity _ Price Cost Quantities Total Cost Design 6"GATE VALVE EA 22 $700.00 $15,400.00 16 $11,200.00 73% FIRE HYDRANT ASSEMBLIES EA 33 $1,600.00 $52,800.00 23 $36,800.00 70% WATER SERVICE CONNECTION 2"LONG SIDE EA 147 $350.00 $51,450.00 97 $33,950.00 66% WATER SERVICE CONNECTION 1"SHORT SIDE EA 199 $250.00 $49,750.00 129 $32,250.00 65% RELOCATE EXISTING WATER SERVICE CONNECTION EA 20 $250.00 $5,000.00 20 $5,000.00 100% CONNECT TO EXISTING WATER MAINS EA 25 $2,000.00 $50,000.00 15 $30,000.00 60% SUBTOTAL WATER DISTRIBUTION SYSTEM IMPROVEMENTS $680,614.00 $476,574.00 70% I PAVING AND STREET ITEMS TYPE S-3 ASPHALT OVERLAY 1" LF 1,890 $2.50 $4,725.00 1890 $4,725.00 100% TYPE S-3 ASPHALT CONCRETE PAVEMENT 2" LF 9,491 $4.75 $45,082.25 9491 $45,082.25 100% TYPA S-3 ASPHALT CONCRETE PAVEMENT 1 1/7' LF 28,718 $2.50_ $71,795.00 28718 $71,795.00 100% LIMEROCK BASE COURSE 8" LF 8,428 $6.25 $52,675.00 8428 $52,675.00 100% LIMEROCK BASE COURSE 6" LF 31,657 $4.75 $150,370.75 31657 $150,370.75 100% STABILIZED SUBGRADE 12" LF 41,134 $3.50 $143,969.00 41134 $143,969.00 100% ASPHALT PAVEMENT REPAIR(TRENCH) LF 610 $30.00 $18,300.00 610 $18,300.00 100% CONCRETE SIDEWALK,4"THICK LF 4,870 $20.00 $97,400.00 4870 $97,400.00 100% CONCRETE DRIVEWAY REPAIR 5"THICK LF 8,050 $30.00 $241,500.00 8050 $241,500.00 100% CONCRETE CURB AND GUTTER LF 29,546 $10.00 $295,460.00 14773 $147,730.00 50% CONCRETE RIBBON CURB LF 0 $5.00 $0.00 14773 $73,865.00 NEW ITEM SODDING SY 33,185 $2.00 $66,370.00 29185 $58,370.00 88% GRASS SWALES,6'WIDE,6"DEEP MAX. SY $2.00 $0.00 4000 $8,000.00 NEW ITEM GEOFABRIC UNDER SWALES FOR SOD PROTECTION SY $5.00 $0.00 4000 $20,000.00 NEW ITEM PAGE 6 COST E HATE OF CORE CITY UTILITY CURRENT DESI��QUANTITIES/COSTS REVISED DESIGN IMPROVEMENT PROJECT TREATMENT TRAIN 19-Dec-97 a Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity . Price Cost Quantities Total Cost Design TRAFFIC STRIPE STOP BAR 24"WHITE LF 352 $5.00 $1,760.00 352 $1,760.00 100% TRAFFIC STRIPE 4"YELLOW LF 2,216 $1.50 $3,324.00 2216 $3,324.00 100% SINGLE SIGN POSTS AS 60 $550.00 $33,000.00 60 $33,000.00 100% SUBTOTAL PAVING AND STREET ITEMS $1,225,731.00 $1,171,866.00 96% PERCENT`OF TOTALS PLUS S PUS TOTA1 LCURRENT RECAPITULATION TOTALS. CONTINGENCY: CONTINGENCY TOTALS CONTJN ENCYM NNiiiiiDESIGN . GENERAL ITEMS $762,335 10% $838,569 $683,318 $751,650 90% STORM DAINAGE ITEMS $2,392,620 10% $2,631,882 $2,999,144 $3,299,058 125% SANITARY SEWER IMPROVEMENT ITEMS $607,056 10% $667,762 $583,792 $642,171 96% WATER DISTRIBUTION SYSTEM IMPROVEMENT ITEMS $680,614 10% $748,675 $476,574 $524,231 70% PAVING AND STREET ITEMS $1,225,731 10% $1,348,304 $1,171,866 $1,289,053 96% ENGINEERING FOR RE-DESIGN,NEW PLANS AND RE-PERMITTING $300,000 TOTAL CORE CITY UTILITY IMPROVEMENTS BASE BID $5,668,356 $6,235,192 $5,914,693 $6,806,163 109% PAGE 7 COST E N � ATE OF CORE CITY UTILITY CURRENTDEG|QNQUANTITIES/COSTS PUBLIC WORKS ` IMPROVEMENT PROJECT ALTERNATE1 18-Oeo-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design BASE BID AREA ONLY GENERAL ITEMS SITE PREPARATION LS m395.085.00 _ 90.00% n355.576.50 90% MAINTENANCE OF TRAFFIC LS $50,000.00 _ $50,000.00 100% OFF-DUTY LAW ENFORCEMENT OFFICER MH 320 $uo.00_ $6,400.00 _ ,mm _ $6,400.00 100m BARRICADE TYPE I,II,DRUM ED 20,000 $0.35 $7,000.00 20,000 $7,000.00 100% BARRICADE TYPE III ED 4.000 $0.85 $3.400.00 4.000 $3.400.00 100m ADVANCE WARNING ARROW PANELS ED 1.000 m15.00 $15.000.00 1.000 $15.000.00 100Y6 . HIGH INTENSITY FLASHING LIGHTS TEMP.TYPE B ED 5,000 $1.25 m6,25000 , ,n.mm $6,250.00 100m VARIABLE MESSAGE SIGN TEMP. .so 250 , �ro�oo $17,500.00250 $17,500.00 100% DUST CONTROL LS nco.mm.00 _ � $25,000.00 100m EROSION CONTROL AND POLLUTION ABATEMENT LS $ro.mm.00 , $75,000.00 100% FIELD OFFICE DA 730 $50.00 s36.500.00 730 m36.500.00 100% PROJECT SIGN ,EA z _ $500.00 $1,000.00 2 $1,000.00 100% PHOTOGRAPHS uVIDEOTAPES LS _ $4,000.00 $4,000.00 100% AS-BUILT SURVEY DRAWINGS Lo _ $15,000.00 $15,000.00 100% AASHTO CLASS A-3 SAND,ABOVE ft4VERT _cv 3,600 $12.00_ $43,200.003,600 $43,200.00 100% AASHTOCLASSA-3SAND,BELOW INVERT CY 1.800 . $15.00 $27,000.00 _ 1,800 $27,000.00 100% SHERRY DRIVE LANDSCAPING La _ . $10,000.00 $10,000.00 100% MISC.LANDSCAPING ALLOWANCE LS $25,000.00 $25,000.00 100m SUBTOTAL GENERAL ITEMS tMiM,Win]:M0li0��i:ii:i : ,Binai;i:MM:MiMiA $762.335.00 Mft $722.826.50 95% PAGE 1 ,...---- COST E MATE OF CORE CITY UTILITY PUBLIC WORKS CURRENT DEbiuN QUANTITIES/COSTS IMPROVEMENT PROJECT ALTERNATE 1 19-Dec-97 . _ Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design STORM DRAINAGE ITEMS 17 PVC STORMSEWER(LOT SERVICES) LF 165 , $30.00 $4,950.00 165 $4,950.00 100% 15'RCP STORMSEWER LF 1,366 $30.00 $40,980.00 1366 $40,980.00 100% 18"RCP STORMSEWER LF 149 $32.00 $4,768.00 149 $4,768.00 100% 24"RCP STORMSEWER LF 1,347 $36.00 $48,492.00 1347 $48,492.00 100% 30"RCP STORMSEWER LF 4,318 $44.00 $189,992.00 4318 $189,992.00 100% 36"RCP STORMSEWER LF 4,344 $56.00 $243,264.00 4344 $243,264.00 100% 42"RCP STORMSEWER LF 2,017 $68.00 $137,156.00 2017 $137,156.00 100% 48"RCP STORMSEWER LF 1,804 $76.00 $137,104.00 1804 $137,104.00 100% 54"RCP STORMSEWER LF 46 $95.00 $4,370.00 46 $4,370.00 100% 60"RCP STORMSEWER LF 361 $118.00 $42,598.00 361 $42,598.00 100%, 66"RCP STORMSEWER LF 741 $194.00, $143,754.00 741 $143,754.00 100% 72"RCP STORMSEWER LF 192 $200.00 $38,400.00 192 $38,400.00 100%, 19"x30"ERCP STORMSEWER LF 0 $47.74 $0.00 0 $0.00 NEW ITEM 24"x38"ERCP STORMSEWER LF 1,451 $66.00 $95,766.00 1451 $95,766.00 100% 29")(45"ERCP STORMSEWER LF 685 $84.00 $57,540.00 , 685 $57,540.00 100% 34"x53"ERCP STORMSEWER LF 393 $102.00 $40,068.00, 393 $40,086.00 100% 38"x60"ERCP STORMSEWER LF $125.99 $0.00 _ 0 $0.00 NEW ITEM 43"x68"ERCP STORMSEWER LF $156.59 $0.00 0 $0.00 NEW ITEM 48"x76"ERCP STORMSEWER LF $189.63 $0.00 , 0 $aoo NEW ITEM CURB INLET TYPE"P"BOTTOM EA ,63 $1,500.00 $94,500.00 63 $94,500.00 100% CURB INLET TYPE"J-1"BOTTOM 4' EA 3 $1,500.00 $4,500.00 3 $4,500.00 100%, CURB INLET TYPE"J-1"BOTTOM 7' EA 12 $2,625.00 $31,500.00 12 $31,500.00 100% PAGE 2 COST E_ __MATE OF CORE CITY UTILITY CURRENT DESIGN QUANTITIES/COSTS PUBLIC WORKS IMPROVEMENT PROJECT ALTERNATE 1 , 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design CURB INLET TYPE"J-1"BOTTOM 8' EA 1 $3,000.00 $3,000.00 1 $3,000.00 100% CURB INLET TYPE"J-2"BOTTOM 4'x4' EA 15 $1,900.00 $28,500.00 15 $28,500.00 100% CURB INLET TYPE"J-2'BOTTOM 4'x5' EA 14 $2,150.00 $30,100.00 14 $30,100.00 100% CURB INLET TYPE"J-2'BOTTOM 4k6' EA 4 $2,390.00_ $9,560.00 _ 4 $9,560.00 100% CURB INLET TYPE"J-2"BOTTOM 4'x7' EA 1 $2,625.00 $2,625.00 1 $2,625.00 100% CURB INLET TYPE"J-2"BOTTOM 4'x8' EA 1 $2,875.00 $2,875.00 1 $2,875.00 100% CURB INLET TYPE"J-2'BOTTOM 5'x5' EA 10 $2,390.00 $23,900.00 10 $23,900.00 100% CURB INLET TYPE"J-7'BOTTOM 6'x6' EA 6 $2,875.00 $17,250.00 6 $17,250.00 100% DITCH BOTTOM INLET TYPE"E" EA 4 $1,500.00 $6,000.00 4 $6,000.00 100% DITCH BOTTOM INLET TYPE"E""J-1"BOTTOM,4'x5' EA 2 $2,150.00 $4,300.00 2 $4,300.00 100% DITCH BOTTOM INLET TYPE"E""J-1"BOTTOM,6'x6' EA 1 $2,875.00 $2,875.00 _ 1 $2,875.00 100% TYPE"P"STORM MANHOLE EA 13 $1,500.00 $19,500.00 13 $19,500.00 100% TYPE"J-1"STORM MANHOLE 4' EA 47 $1,500.00 $70,500.00 47 $70,500.00 100% TYPE"J-1"STORM MANHOLE 5' EA 65 $1,875.00 $121,875.00 65 $121,875.00 100% TYPE"J-1"STORM MANHOLE 6' EA 22 $2,250.00 $49,500.00 22 $49,500.00 100% TYPE"J-1"STORM MANHOLE 7' EA 1 $2,625.00 $2,625.00 1 $2,625.00 100% TYPE"J-1"STORM MANHOLE 8' EA 10 $3,000.00 $30,000.00 10 $30,000.00 100% TYPE"J-1"STORM MANHOLE 9' EA 3 $3,375.00 $10,125.00 3 $10,125.00 100% TYPE"J-2'STORM MANHOLE 4'x5' EA 2 $2,150.00 $4,300.00 2 $430000 100% TYPE"J-2"STORM MANHOLE 6'x6' EA 4 $2,875.00 $11,500.00 4 $11,500.00 100% TYPE"J-2"STORM MANHOLE 6'x8' EA 2 $3,350.00 $6,700.00 2 $6,700.00 100% TYPE"J-2"STORM MANHOLE 8k9' EA 1 $4,100.00 $4,100.00 1 $4,100.00 100% MITERED END SECTION 66" EA _2 _ $5,800.00 $11,600.00 2 $11,600.00 100% PAGE 3 COST E MATE OF CORE CITY UTILITY CURRENT DESIGN QUANTITIES/COSTS PUBLIC WORKS IMPROVEMENT PROJECT ALTERNATE 1 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design MITERED END SECTION 72" EA 1 $6,000.00 $6,000.00 1 $6,000.00 100% MITERED END SECTION 38"x60" EA $5,800.00 $0.00 0 $0.00 NEW ITEM MITERED END SECTION 48"x76" EA $6,000.00 $0.00 0 $0.00 NEW ITEM WOOD DECK OVER 66'IN HOWELL PARK EA 1 $7,500.00 $7,500.00 1 $7,500.00 100% WOOD DECK OVER 72"IN HOWELL PARK EA 1 $7,500.00 $7,500.00 1 $7,500.00 100% ELEVENTH STREET BOX CULVERT LS $100,000.00 0 $100,000.00 100% PLAZA CULVERT MODIFICATION LS $20,000.00 0 $20,000.00 100% LAKE EXCAVATION IN HOWELL PARK LS $85,000.00 60.00% $51,000.00 60% CHANNEL EXCAVATION IN HOWELL PARK LS $40,000.00 0 $40,000.00 100% CHANNEL EXCAVATION BY CITY HALL LS $10,000.00 0 $10,000.00 100% FLEET LANDING WEIR REPLACEMENT LS $25,000.00 0 $25,000.00 100% CONCRETE BAFFLE BOXES IN SIDE STREETS EA $45,000.00 $0.00 0 $0.00 NEW ITEM CONCRETE DITCH PAVEMENT SY 92 $30.00 $2,760.00 92 $2,760.00 100% CLASS I CONCRETE FOR RETAINING WALLS CY 231 $500.00 $115,500.00 231 $115,500.00 100% UNDERDRAIN TYPE II LF 6,287 $15.00 $94,305.00 25.00% 6287 $94,305.00 100% MULCH PEDESTRIAN TRAIL W R.R.TIES LF 900 $10.00 $9,000.00 25.00% 900 $9,000.00 100% HOUSE SWALES SY $5.00 $0.00 0 $0.00 NEW ITEM HOUSE CISTERNS EA $250.00 $0.00 0 _ $0.00 NEW ITEM RED MAPLE EA 113 $175.00 $19,775.00 113 $19,775.00 100% BALD CYPRESS EA 100 $150.00 $15,000.00 100 $15,000.00 100/o 0 SYCAMORE EA 9 $250.00 $2,250.00 9 $2,250.00 100% SUBTOTAL STORM DRAINAGE ITEMS ; $2,392,620.00 1 $2,358,620.00 99% 1 PAGE 4 COST E DATE OF CORE CITY UTILITY CURRENT DESi�ry QUANTITIES/COSTS PUBLIC WORKS . IMPROVEMENT PROJECT ALTERNATE 1 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity _ Price Cost Quantities Total Cost Design SANITARY SEWER IMPROVEMENT ITEMS 10"PVC SEWER PIPE LF 2,081 $32.00 $66,592.00 60.00% 2,081 $66,592 100% 8"PVC SEWER PIPE LF 7,084 $26.00 $184,184.00 60.00% 7,084 $184,184 100% 10"DUCTILE IRON SEWER PIPE EA 2,390 $42.00 $100,380.00 60.00% 2,390 $100,380 100% 8"DUCTILE IRON SEWER PIPE EA 50 $34.00 $1,700.00 60.00% 50 $1,700 100% LINING 10"SEWER EA $33.00 , $0.00 40.00% 0 $0 NEW ITEM LINING 8"SEWER EA $28.00 $0.00 40.00% 0 $0 NEW ITEM TYPE"A"SANITARY SEWER MANHOLE EA 38 $2,000.00 $76,000.00 60.00% 38 $76,000.00 100% LINING SANITARY SEWER MANHOLE EA $1,800.00_ $0.00 40.00% 0 $0.00 NEW ITEM SANITARY SEWER SERVICE 6"PIPE TO ROW,EACH LOT EA 293 $400.00 $117,200.00 293 $117,200.00 100% CONNECTIONS TO EXISTING SANITARY MANHOLES EA 15 $3,000.00 $45,000.00 60.00% 15 $45,000.00 100% CONNECTION TO 2 EXISTING SANITARY MANHOLES 7TH STREET EA 1 $6,000.00 $6,000.00 1 $6,000.00 100% CONNECTION TO 2 EXISTING SANITARY MANHOLES 11TH STREET EA 1 $10,000.00 $10,000.00 1 $10,000.00 100% SUBTOTAL SANITARY SEWER IMPROVEMENTS $607,056.00 $607,056.00 100% I I I WATER DISTRIBUTION SYSTEM IMPROVEMENTS 12"DUCTILE IRON WATER PIPE LF 3,514 $36.00_ $126,504.00 3,514 $126,504.00 100% 12"PVC C-900 WATER PIPE LF 3,637 $28.00 $101,836.00 3,637 $101,836.00 100% 12"GATE VALVE EA 25 $1,100.00 $27,500.00 25 $27,500.00 100% 8"DUCTILE IRON WATER PIPE LF 520 $32.00 $16,640.00 520 $16,640.00 100% 8"PVC C-900 WATER PIPE LF 3,323 $24.00_ $79,752.00 3,323 $79,752.00 100% 8"GATE VALVE EA 11 $900.00 $9,900.00 11 $9,900.00 100% 6"DUCTILE IRON WATER PIPE LF 620 $22.00 $13,640.00 620 $13,640.00 100% 6"PVC C-900 WATER PIPE LF 4,469 $18.00 $80,442.00 4,469 $80,442.00 100% PAGE 5 COST ES 4TE OF CORE CITY UTILITY CURRENT DESIvry QUANTITIES/COSTS PUBLIC WORKS IMPROVEMENT PROJECT ALTERNATE 1 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design 6"GATE VALVE EA 22 $700.00 $15,400.00 22 $15,400.00 100% FIRE HYDRANT ASSEMBLIES EA 33 $1,600.00 $52,800.00 33 $52,800.00 100% WATER SERVICE CONNECTION 7'LONG SIDE EA 147 $350.00 $51,450.00 147 $51,450.00 100% WATER SERVICE CONNECTION 1"SHORT SIDE EA 199 $250.00 $49,750.00 199 $49,750.00 100% RELOCATE EXISTING WATER SERVICE CONNECTION EA 20 $250.00 $5,000.00 20 $5,000.00 100% CONNECT TO EXISTING WATER MAINS EA 25 $2,000.00 $50,000.00 25 $50,000.00 100% SUBTOTAL WATER DISTRIBUTION SYSTEM IMPROVEMENTS $680,614.00 $680,614.00 100% PAVING AND STREET ITEMS TYPE S-3 ASPHALT OVERLAY 1" LF 1,890 $2.50 $4,725.00 1,890 $4,725.00 100% TYPE S-3 ASPHALT CONCRETE PAVEMENT 2' LF 9,491 $4.75 $45,082.25 9,491 $45,082.25 100% TYPA S-3 ASPHALT CONCRETE PAVEMENT 1 1/2" LF 28,718 $2.50 $71,795.00 28,718 $71,795.00 100% LIMEROCK BASE COURSE 8" LF 8,428 $6.25 $52,675.00 8,428 $52,675.00 100% LIMEROCK BASE COURSE G' LF 31,657 $4.75 $150,370.75 31,657 $150,370.75 100% STABILIZED SUBGRADE 17' LF 41,134 $3.50 $143,969.00 41,134 $143,969.00 100% ASPHALT PAVEMENT REPAIR(TRENCH) LF 610 $30.00 $18,300.00 610 $18,300.00 100% CONCRETE SIDEWALK,4"THICK LF 4,870 $20.00 $97,400.00 _ 4,870 $97,400.00 100% CONCRETE DRIVEWAY REPAIR 5"THICK LF 8,050 $30.00, $241,500.00 8,050 $241,500.00 100% CONCRETE CURB AND GUTTER LF 29,546 $10.00 $295,460.00 29,546 $295,460.00 100% CONCRETE RIBBON CURB LF 0 $5.00 $0.00 0 $0.00 NEW ITEM SODDING SY 33,185 $2.00 $66,370.00 , 33,185 $66,370.00 100% GRASS SWALES,6'WIDE,6"DEEP MAX. SY $2.00 $0.00 0 $0.00 NEW ITEM GEOFABRIC UNDER SWALES FOR SOD PROTECTION SY $5.00 $0.00 0 $0.00 NEW ITEM PAGE 6 COST ES 4TE OF CORE CITY UTILITY CURRENT DESK lUANTITIES/COSTS PUBLIC WORKS IMPROVEMENT PROJECT ALTERNATE 1 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design TRAFFIC STRIPE STOP BAR 24"WHITE LF 352 $5.00 $1,760.00 352 $1,760.00 100% TRAFFIC STRIPE 4"YELLOW LF 2,216 $1.50 $3,324.00 2,216 $3,324.00 100% SINGLE SIGN POSTS AS 60 $550.00 $33,000.00 60 $33,000.00 100% SUBTOTAL PAVING AND STREET ITEMS $1,225,731.00 $1,225,731.00 100% PEROENT tOF RECAPITULATION TQTAI.S PLUS tOT S PLUS.. CURRENT F TOTALS _ CONTtNGEN CY CONTINGENCY. :07045 , CONTINGENCY DESIGN GENERAL ITEMS $762,335 10% $838,569 $722,827 $795,109 95% STORM DAINAGE ITEMS $2,392,620 10% $2,631,882 $2,358,620 $2,594,482 99% SANITARY SEWER IMPROVEMENT ITEMS $607,056 10% $667,762 , $607,056 $667,762 100% WATER DISTRIBUTION SYSTEM IMPROVEMENT ITEMS $680,614 _ 10% $748,675 $680,614 $748,675 100% PAVING AND STREET ITEMS $1,225,731 10% $1,348,304 $1,225,731 $1,348,304 100% TOTAL CORE CITY UTILITY IMPROVEMENTS BASE BID _ $5,668,356 $6,235,192 _ $5,594,848 $6,154,332 99% PAGE 7 COST ES 4TE OF CORE CITY UTILITY CURRENT DESI( lUANTITIES/COSTS PUBLIC WORKS IMPROVEMENT PROJECT ALTERNATE 2 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit _ Quantity Price Cost Quantities Total Cost Design BASE BID AREA ONLY GENERAL ITEMS SITE PREPARATION LS $395,085.00 80.00% $316,068.00 80% MAINTENANCE OF TRAFFIC LS $50,000.00 $50,000.00 100% OFF-DUTY LAW ENFORCEMENT OFFICER MH 320 $20.00 $6,400.00 320 $6,400.00 100% BARRICADE TYPE I,II,DRUM ED 20,000 $0.35 $7,000.00 20,000 $7,000.00 100% BARRICADE TYPE III ED 4,000 $0.85 $3,400.00 4,000 $3,400.00 100% ADVANCE WARNING ARROW PANELS ED 1,000 $15.00 $15,000.00 1,000 $15,000.00 100% HIGH INTENSITY FLASHING LIGHTS TEMP.TYPE B ED 5,000 $1.25 $6,250.00 5,000 $6,250.00 100% VARIABLE MESSAGE SIGN TEMP. ED 250 $70.00 $17,500.00 250 $17,500.00 100% DUST CONTROL LS $25,000.00 $25,000.00 100% EROSION CONTROL AND POLLUTION ABATEMENT LS $75,000.00 $75,000.00 100% FIELD OFFICE DA 730 $50.00 $36,500.00 730 $36,500.00 100% PROJECT SIGN EA 2 $500.00 , $1,000.00 2 $1,000.00 100% PHOTOGRAPHS&VIDEOTAPES LS $4,000.00 $4,000.00 100% AS-BUILT SURVEY DRAWINGS LS $15,000.00 $15,000.00 100% AASHTO CLASS A-3 SAND,ABOVE INVERT CY 3,600 $12.00 $43,200.00 3,600 $43,200.00 100% AASHTO CLASS A-3 SAND,BELOW INVERT CY 1,800 $15.00 $27,000.00 1,800 $27,000.00 100% SHERRY DRIVE LANDSCAPING LS $10,000.00 $10,000.00 100% MISC.LANDSCAPING ALLOWANCE LS $25,000.00 $25,000.00 100% SUBTOTAL GENERAL ITEMS $762,335.000 $683,318.00 90% PAGE 1 COST ES kTE OF CORE CITY UTILITY PUBLIC WORKS . . CURRENT DESIGN UUANTITIES/COSTS IMPROVEMENT PROJECT ALTERNATE 2 19-Dec-97 . . Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design . . . . . . . .. . . . . STORM DRAINAGE ITEMS . . . . . . . . .. .... .. . . •• •• • . ... . . . . .. . . . ... ... ... .. . .. . •••• • .. . ..... . . .. . . ... . . .......... . .............. ..... . . . - . ...• • - . ••• - . 17'PVC STORMSEWER(LOT SERVICES) LF 165 $30.00 $4,950.00 165 $4,950.00 100% 15"RCP STORMSEWER LF 1,366 $30.00 $40,980.00 1366 $40,980.00 100% 18"RCP STORMSEWER LF 149 $32.00 $4,768.00 149 $4,768.00 100%. 24"RCP STORMSEWER LF 1,347 $36.00 $48,492.00 1347 $48,492.00 100% 30"RCP STORMSEWER LF 4,318 $44.00 $189,992.00 $0.00 0%, 36"RCP STORMSEWER LF 4,344 $56.00 $243,264.00 $0.00 0% 42"RCP STORMSEWER LF 2,017 $68.00 $137,156.00 $0.00 0% 48"RCP STORMSEWER LF 1,804 $76.00 $137,104.00 $0.00 0% 54"RCP STORMSEWER LF 46 $95.00 $4,370.00 $0.00 0% 60"RCP STORMSEWER LF 361 $118.00 $42,598.00 $0.00 0% 66"RCP STORMSEWER LF 741 $194.00.... $143,754.00 $0.00 0%, 72'RCP STORMSEWER LF 192 $200.00 $38,400.00 $0.00 0% 19x30"ERCP STORMSEWER LF 0 $47.74_ $0.00 , 5769 $275,439.06 NEW ITEM 24"x38"ERCP STORMSEWER LF 1,451 $66.00 $95,766.00 5029 $331,914.00 347% 29"X45"ERCP STORMSEWER LF 685 $84.00, $57,540.00 2730 $229,320.00 399% 34"x53"ERCP STORMSEWER LF 393 $102.00 $40,086.00 1804 $184,008.00 459% 38"x60"ERCP STORMSEWER LF $125.99 $0.00 46 $5,795.61 NEW ITEM 43"x68"ERCP STORMSEWER LF $156.59 $0.00 361 $56,529.55 NEW ITEM 48"x76"ERCP STORMSEWER LF $189.63 $0.00 1433 $271,745.24 NEW ITEM CURB INLET TYPE"P"BOTTOM EA 63 $1,500.00 $94,500.00 63 $94,500.00 100% CURB INLET TYPE"J-1"BOTTOM 4' EA 3 $1,500.00 $4,500.00 3 $4,500.00 100% CURB INLET TYPE"J-1"BOTTOM 7' EA 12 $2,625.00 $31,500.00 12 $31,500.00 100% PAGE 2 COST ES kTE OF CORE CITY UTILITY CURRENT DESK .UANTITIES/COSTS PUBLIC WORKS IMPROVEMENT PROJECT ALTERNATE 2 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price _ Cost Quantities Total Cost Design CURB INLET TYPE"J-1"BOTTOM 8' EA 1 $3,000.00 $3,000.00 1 $3,000.00 100% CURB INLET TYPE"J-7 BOTTOM 4'x4' EA 15 $1,900.00 $28,500.00 15 $28,500.00 100% CURB INLET TYPE"J-2"BOTTOM 4'x5' EA 14 $2,150.00, $30,100.00 14 $30,100.00 100% CURB INLET TYPE"J-2'BOTTOM 4'x6' EA 4 $2,390.00 $9,560.00 4 $9,560.00 100% CURB INLET TYPE"J-2"BOTTOM 4'x7' EA 1 $2,625.00 $2,625.00 1 $2,625.00 100% CURB INLET TYPE"J-2"BOTTOM 4'x8' EA 1 $2,875.00 $2,875.00 1 $2,875.00 100% CURB INLET TYPE"J-2"BOTTOM 5'x5' EA 10 $2,390.00 $23,900.00 10 $23,900.00 100% CURB INLET TYPE"J-2"BOTTOM 6'x6' EA 6 $2,875.00 $17,250.00 , 6 $17,250.00 100% DITCH BOTTOM INLET TYPE"E" EA 4 $1,500.00 $6,000.00 4 $6,000.00 100% DITCH BOTTOM INLET TYPE"E""J-1"BOTTOM,4'x5' EA 2 $2,150.00 $4,300.00 2 $4,300.00 100% DITCH BOTTOM INLET TYPE"E""J-1"BOTTOM,6'x6' EA 1 $2,875.00 $2,875.00 1 $2,875.00 100% TYPE"P"STORM MANHOLE EA 13 $1,500.00 $19,500.00 13 $19,500.00 100% TYPE"J-1"STORM MANHOLE 4' EA 47 $1,500.00 $70,500.00 47 $70,500.00 100% TYPE"J-1"STORM MANHOLE 5' EA 65 $1,875.00 $121,875.00 65 $121,875.00 100% TYPE"J-1"STORM MANHOLE 6' EA 22 $2,250.00 $49,500.00 22 $49,500.00 100% TYPE"J-1"STORM MANHOLE 7' EA 1 $2,625.00 $2,625.00 1 $2,625.00 100% TYPE"J-1"STORM MANHOLE 8' EA 10 $3,000.00 $30,000.00 10 $30,000.00 100% TYPE"J-1"STORM MANHOLE 9' EA 3 $3,375.00, $10,125.00 3 $10,125.00 100% TYPE"J-2"STORM MANHOLE 4'x5' EA 2 $2,150.00 $4,300.00 2 $4,300.00 100% TYPE"J-2"STORM MANHOLE 6'x6' EA 4 $2,875.00 $11,500.00 4 $11,500.00 100% TYPE"J-2'STORM MANHOLE 6'x8' EA 2 $3,350.00 $6,700.00 2 $6,700.00 100% TYPE"J-2'STORM MANHOLE 8'x9' EA 1 $4,100.00 $4,100.00 1 $4,100.00 100% MITERED END SECTION 66" EA 2 $5,800.00 $11,600.00 $0.00 0% PAGE 3 • COST EE ATE OF CORE CITY UTILITY CURRENT DESlcily QUANTITIES/COSTS PUBLIC WORKS " IMPROVEMENT PROJECT ALTERNATE 2 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design MITERED END SECTION 77' EA 1 $6,000.00 $6,000.00 $0.00 0% MITERED END SECTION 38"x60" EA $5,800.00 $0.00 1 $5,800.00 NEW ITEM MITERED END SECTION 48"x76" EA $6,000.00 $0.00 1 $6,000.00 NEW ITEM WOOD DECK OVER 66"IN HOWELL PARK EA 1 $7,500.00 $7,500.00 1 $7,500.00 100% WOOD DECK OVER 77 IN HOWELL PARK EA 1 $7,500.00 $7,500.00 1 $7,500.00 100% ELEVENTH STREET BOX CULVERT LS $100,000.00 $100,000.00 100% PLAZA CULVERT MODIFICATION LS $20,000.00 $20,000.00 100% LAKE EXCAVATION IN HOWELL PARK LS $0.00 0% $as,aoo.ao CHANNEL EXCAVATION IN HOWELL PARK LS $40,000.00 $40,000.00 100% RIP RAP CHANNEL PROTECTION LS $10,000.00 NEW ITEM CHANNEL EXCAVATION BY CITY HALL LS $10,000.00 $10,000.00 100% FLEET LANDING WEIR REPLACEMENT LS $25,000.00 $25,000.00 100% CONCRETE BAFFLE BOXES IN SIDE STREETS EA $45,000.00 $0.00 13 $585,000.00 NEW ITEM CONCRETE DITCH PAVEMENT SY 92 $30.00 $2,760.00 $0.00 0% CLASS I CONCRETE FOR RETAINING WALLS CY 231 $500.00 $115,500.00 $115,500.00 100% UNDERDRAIN TYPE II LF 6,287 $15.00 $94,305.00 25.00% 1572 $23,576.25 25% MULCH PEDESTRIAN TRAIL W R.R.TIES LF 900 $10.00 $9,000.00 25.00% 225 $2,250.00 25% HOUSE SWALES SY $5.00 $0.00 0 $0.00 NEW ITEM HOUSE CISTERNS EA $250.00 $0.00 0 $0.00 NEW ITEM RED MAPLE EA 113 $175.00 $19,775.00 57 $9,887.50 50% BALD CYPRESS EA 100 $150.00 $15,000.00 50 $7,500.00 50% SYCAMORE EA 9 $250.00 $2,250.00 5 $1,125.00 50% SUBTOTAL STORM DRAINAGE ITEMS $2,392,620.00 $3,022,790.21 126% PAGE 4 COST EE ATE OF CORE CITY UTILITY CURRENT DESIGN QUANTITIES/COSTS PUBLIC WORKS IMPROVEMENT PROJECT ALTERNATE 2 19-Dec-97 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design PAGE 5 COST EF. ATE OF CORE CITY UTILITY PUBLIC WORKS CURRENT DESIGN QUANTITIES/COSTS IMPROVEMENT PROJECT ALTERNATE 2 19-Dec-97 . _ Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design SANITARY SEWER IMPROVEMENT ITEMS 10"PVC SEWER PIPE LF 2,081 $32.00 $66,592.00 60.00% 1,249 $39,955 60% 8"PVC SEWER PIPE LF 7,084 $26.00 $184,184.00 60.00% 4,250 $110,510 60% 10"DUCTILE IRON SEWER PIPE EA 2,390 $42.00 $100,380.00 60.00% 1,434 $60,228 60% 8"DUCTILE IRON SEWER PIPE EA 50 $34.00 $1,700.00 60.00% 30 $1,020 60% LINING 10"SEWER EA $33.00 $0.00 40.00% 1,788 $59,017 NEW ITEM LINING 8"SEWER EA $28.00 $0.00 40.00% 2,854 $79,901 NEW ITEM TYPE"A"SANITARY SEWER MANHOLE EA 38 $2,000.00 $76,000.00 60.00% 23 $45,600.00 60% LINING SANITARY SEWER MANHOLE EA $1,800.00 $0.00 40.00% 15 $27,360.00 NEW ITEM SANITARY SEWER SERVICE 6"PIPE TO ROW,EACH LOT EA 293 $400.00 $117,200.00 293 $117,200.00 100% CONNECTIONS TO EXISTING SANITARY MANHOLES EA 15 $3,000.00 $45,000.00 60.00% 9 $27,000.00 60% CONNECTION TO 2 EXISTING SANITARY MANHOLES 7TH STREET EA 1 $6,000.00 $6,000.00 1 $6,000.00 100% CONNECTION TO 2 EXISTING SANITARY MANHOLES 11TH STREET EA 1 $10,000.00 $10,000.00 1 $10,000.00 100% SUBTOTAL SANITARY SEWER IMPROVEMENTS .......................................................................„„..............................„.. ---...--......-...---------...--...-......-----..------------------ $607,056.00 $583,791.60 96% I ) I WATER DISTRIBUTION SYSTEM IMPROVEMENTS 12'DUCTILE IRON WATER PIPE LF 3,514 $36.00 $126,504.00 3514 $126,504.00 100% 12"PVC C-900 WATER PIPE LF 3,637 $28.00 $101,836.00 2437 $68,236.00 67% 12"GATE VALVE EA 25 $1,100.00 $27,500.00 21 $23,100.00 84% 8"DUCTILE IRON WATER PIPE LF 520 $32.00 $16,640.00 520 $16,640.00 100% 8"PVC C-900 WATER PIPE LF 3,323 $24.00 $79,752.00 1023 $24,552.00 31% 8"GATE VALVE EA 11 $900.00 $9,900.00 5 $4,500.00 45% 6"DUCTILE IRON WATER PIPE LF 620 $22.00 $13,640.00 620 $13,640.00 100% 6"PVC C-900 WATER PIPE LF 4,469 $18.00 $80,442.00 2789 $50,202.00 62% PAGE 6 COST ESTE OF CORE CITY UTILITY PUBLIC WORKS IMPROVEMENT PROJECT CURRENT DESIG.UANTITIES/COSTS ALTERNATE 2 19-Dec-97 i Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design 6"GATE VALVE EA 22 $700.00 $15,400.00 16 $11,200.00 73% FIRE HYDRANT ASSEMBLIES EA 33 $1,600.00 $52,800.00 23 $36,800.00 70% WATER SERVICE CONNECTION 2'LONG SIDE EA 147 $350.00 $51,450.00 97 $33,950.00 66% WATER SERVICE CONNECTION 1"SHORT SIDE EA 199 $250.00 $49,750.00 129 $32,250.00 65% RELOCATE EXISTING WATER SERVICE CONNECTION EA 20 $250.00 $5,000.00 20 $5,000.00 100% CONNECT TO EXISTING WATER MAINS ..EA,. 25 $2,000.00 $50,000.00 15 $30,000.00 60% SUBTOTAL WATER DISTRIBUTION SYSTEM IMPROVEMENTS • $680,614.00 $476,574.00 70% PAVING AND STREET ITEMS TYPE S-3 ASPHALT OVERLAY 1" LF 1,890 $2.50 $4,725.00 1890 $4,725.00 100% TYPE S-3 ASPHALT CONCRETE PAVEMENT 2' LF 9,491 $4.75 $45,082.25 9491 $45,082.25 100% TYPA S-3 ASPHALT CONCRETE PAVEMENT 1 1/2" LF 28,718 $2.50 $71,795.00 28718 $71,795.00 100% LIMEROCK BASE COURSE 8" LF 8,428 $6.25 $52,675.00 8428 $52,675.00 100% LIMEROCK BASE COURSE 6" LF 31,657 $4.75 $150,370.75 31657 $150,370.75 100% STABILIZED SUBGRADE 12' -LF 41,134 $3.50 $143,969.00 41134 $143,969.00 100% ASPHALT PAVEMENT REPAIR(TRENCH) LF 610 $30.00 $18,300.00 610 $18,300.00 100% CONCRETE SIDEWALK,4"THICK LF 4,870 $20.00 $97,400.00 4870 $97,400.00 100% CONCRETE DRIVEWAY REPAIR 5"THICK LF 8,050 $30.00 $241,500.00 8050 $241,500.00 100% CONCRETE CURB AND GUTTER LF 29,546 $10.00 $295,460.00 0 $0.00 0% CONCRETE RIBBON CURB LF 0 $5.00 $0.00 29546 $147,730.00 NEW ITEM SODDING SY 33,185 $2.00 $66,370.00 33185 $66,370.00 100% GRASS SWALES,6'WIDE,6"DEEP MAX. SY $2.00 $0.00 0 $0.00 NEW ITEM GEOFABRIC UNDER SWALES FOR SOD PROTECTION SY $5.00 $0.00 0 $0.00 NEW ITEM PAGE 7 COST ES TE OF CORE CITY UTILITY CURRENT DESIGN QUANTITIES/COSTS PUBLIC WORKS IMPROVEMENT PROJECT ALTERNATE 2 19-Dec-97 11 Revised Revised Percent of Estimated Estimated Unit Estimated Total Estimated Estimated Current Description Unit Quantity Price Cost Quantities Total Cost Design TRAFFIC STRIPE STOP BAR 24"WHITE LF 352 $5.00 $1,760.00 352 $1,760.00 100% TRAFFIC STRIPE 4"YELLOW LF 2,216 $1.50 $3,324.00 2216 $3,324.00 100% SINGLE SIGN POSTS AS 60 $550.00 $33,000.00 60 $33,000 00 100% SUBTOTAL PAVING AND STREET ITEMS $1,225,731.00 $1,078,001.00 88% PERCENT QF TOTALS PLUS TOTALS PLUSCURRENT RECAPITULATION TOTALS CONTINGENCY CONTINGENCY TOTALS CONTINGENCY DESIGN GENERAL ITEMS $762,335 10% $838,569 $683,318 $751,650 90% STORM DAINAGE ITEMS $2,392,620 10% $2,631,882 $3,022,790 $3,325,069 126% SANITARY SEWER IMPROVEMENT ITEMS $607,056 10% $667,762 $583,792 $642,171 96% WATER DISTRIBUTION SYSTEM IMPROVEMENT ITEMS $680,614 10% $748,675 $476,574 $524,231 70% PAVING AND STREET ITEMS $1,225,731 10% $1,348,304 $1,078,001 $1,185,801 88% ENGINEERING FOR RE-DESIGN,NEW PLANS AND RE-PERMITTING $250,000 TOTAL CORE CITY UTILITY IMPROVEMENTS BASE BID $5,668,356 $6,235,192 $5,844,475 $6,678,922 107% PAGE 8 a I CORE CITY DRAINAGE 'I \, 1 \ I ,`I ,/ ET �� PROPOSED STORM PIPE ' LaA_s-T_E_I ,/ 4, ROUTING AS IN ----A, TREATMENT TRAIN ,: \ DESIGN 1 TH ST. I ERT _� IMPROV NTS � 11TH STREET _-- _ I ____ -----�% , U' ; DTH STI-7_7— TREET---_�--- �> _ of oxo "�1 ___ / / (/) ' ; / ?Ps. tj - "X38 .SK�_�:= _ - -.. �I 1 1- .-1 II i ' ,� 24__,---,- -__-- --} I �� Q� J , ' / .I / gi /1 -i , / i 1 Q Z U, 0 i 4..... 4, _, ' �, -m ___- Q/ / �/ / ATLANTIC BEACH �-1 ', �+ " 2ND STREET_J I_-- D ELEMENTARY SCHOOL 29 X45 _ __ --1 r % _— `� -u 7' / W _-___ - 11, ,W%/1/ / / /�, ,,�` ST STREET-- --—-- _ / j , / , , \ , `4. 1g x30_____-- ___-- --ll, , ----1 r / moo, , ,,„,,,.. / / / � - �,/ � \ I'' ... II II / / / t STR J �_-J' L / / _, ,w38" AHERN EET L---------=-� STURDIVANT AVENUE `,.._�==_ 24-�---____----" -- --7 --------� r------- ---- ----� — 1 PARK -- _-- I I I I I I I I I EXHIBIT NO. 1 1 I,, CORE CITY DRAINAGE , , I I ' / , I I STREET \ PROPOSED STORM PIPE / �� __-__ 12j" ROUTING AS IN 1, �,�4�------- , CURRENT PERMITTED I ,�z ' ,�� I DESIGN I ,:\' ' I I , 1TH ST. •UL ERT J I M P R O V M NTS I _Tf{ STREET-__- I r----1 \--- \ STREET__ ral- , ��, 10TH 1> h rats loo Q�\r, 3RD L - _-- - � _ Kt --�--� _ wi , -/ ,i ; - L.36 _ _ b 9 , >, , ' ~ m11 I �� ' 0)� � �, � w , II w ..t, , , , 4/ i Q�� / �-cc � 1�j TRE _� L-- /' " LtiCal L____ ' ATLANTIC BEACH -OG, , „ -2N, % / �' / ELEMENTARY SCHOOL , 42 --- _—_____, , -'s-7 -- //ii Lr) , c----- II I/ ^, �, ,, 1ST STREET__-- T SIRE - - ' , , ' 24 x38 --- _----1 ---1 f `, , / i' / / 2, 1, `--__ -�-- ��i I ' I I \ AHERN STREE_J J L-__ L-__� �__� �__� L-----------------� -- ,-- -I __ STURDIVANT_AVENUE ' 36 -,---------_- ----\ AHERN -I F----------1 r ------- -- \_---- 'PARK \ EXHIBIT NO. 2 CORE CITY DRAINAGE , ,, \ 11 ' 1 \ PROPOSED STORM PIPE ,' 1 STREET / �� 12T" ROUTING AS IN �, 4��--- ; PUBLIC WORKS I : Az' ( ,cor '� I ALTERNATE NO. 1 I , I 1 1 S\ M •UL ERT P R O V M• NTS I 11TH STREET ® 48" �6 � _--- 1 - ------1 i STREET__ 1 1�r' -- _,_--- ri �� r,, 100 - ------ i �� , 5 i rte_--- _ i / CO,' , i i 7Q, 3R0_ - _ „e " wl / Q 44'/ i., 4.1 \ �6--------- I " >' / ,��, , �/ , , C_- I I I \ i\ ' ' / ',,^ ' 1 Ila Z VI / / ��/ / �4'/r/ ' ' / 111 `,Q., 1 1 w U I Li ' I V-_�-- LLQ Qt/ //� 1 1� - STREET_J L_____ __ j / ATLANTIC BEACH Y 1 „ 2ND ,` D ��D . ' ELEMENTARY SCHOOL �,1, r _- __ - --- �` �q 42 - _ _- I (�- \ -__ _� 1 r I 1 /' L Q/' �\, '1 1 I I I I __ / 1 , I 1 / , ; / -- v , 1�- ; LJL;/ 1 „ 1ST STRE -_ T SIR _ / X38 -----" ----1 ---i E------ , / / `2/ _ ------- , r" , / li , Q; I� , \VI? , 1/ G, STREET J i�__ I 1___-_-- I \ v-- Y---- // ---1 Lit - ' � L---------- ------i AHERN _- RN _ StuRDIVANT AVENUE 36 _------" -- __ / — r — I -------------- � `--__-__--------- - - PARK 1 1 1 I , EXHIBIT NO. 3 I I I I 1 DEC. 19. 1997 5. 15N EI'1!1LAN1i T1i1MSzAM1LLJr1<: rf.'. Jin r. EX t it WOS HOe -,2,3- � "7 December 19, 1997 City of Atlantic Beach 800 Seminole Road Atlantic Beach, Florida 32233 RE: Review of Howell Park Review Committee's Final Report Core City Improvement Project City Project No. SU9601 E.T.M. Project No. 96-025 ATTN:Mr. Jim Jarboe City Manager • • • Dear Mr. Jarboe: • As requested, we have reviewed the Howell Park Review Committee's Final Report, and are hereby • submitting our comments: I. BACKGROUND: • The Current Design for the Core City Improvement Project includes excavating two ponds in Howell Park totalling 1.39 acres (i.e. 15% of the total 10.4 acre park area), of which 1.12 acres is currently forested with the remainder consisting of existing canal. The proposed ponds serve two purposes: to provide stormwater treatment, and to accomodate the inverts of the proposed larger outfall pipes. Approximately 0.66 acres of the forested impact is associated with the stormwater treatment function, and approximately 0.46 acres of the forested impact is associated with the"sumps"for the larger outfall pipes. The Howell Park Review Committee was charged by the Mayor to explore design alternatives which would reduce the impact to the forested park area. DRAFT :: 1Drm cn•1LEtau 1nh1r1JctMILLCr, civ. li. SUMMARY: After reviewing the Committee's recommendations (see Section lll. below), we believe that those recommendations having the potential to reduce tree impact in the park area can be summarized as follows: REDUCTION REMAINING IN PARK PARK ANTICIPATED ALTERNATIVE TREE IMPACT TREE IMPACT `ADDITIONAL COST 1. BAFFLE BOXES 0.66 AC 0.46 AC $191,286 2. BAFFLE BOXES 0.97 AC 0.15 AC $393,223 W/BOX CULVERT 3. STREET SWALES 0.66 AC 0.46 AC $363,641 W/RIBBON CURB & WI STABILIZATION MAT 4, STREET SWALES 0.97 AC 0.15 AC $53,910 W/O RIBBON CURB& W/O STABILIZATION MAT W/BOX CULVERT * For a breakdown of the cost analysis, see Exhibits 1 -4 III. REVIEW OF COMMITTEE'S RECOMMENDATIONS: FIRST EE CQMMENpATION; Utilize a "Treatment Train" approach, which consists of incorporating one or more of the following concepts: CISTERNS: We believe that the use of cisterns will provide limited stormwater treatment credit since they would collect a portion of roof runoff, but would not collect roadway or lawn runoff_ In addition, we do not believe that they would have any significant reduction in peak flowrates due to limited storage volumes. In order to claim credit for stormwater treatment by constructing cisterns on private property, the St. Johns River Water Management District will require that the City provide an enforcement and maintenance vehicle, consisting of obtaining easements over the private property or adopting an Ordinance requiring that all property owners be in compliance within a specified timeframe. SWALES ALONG HOUSES: It is our opinion that constructing swales on private property along houses will provide limited stormwater treatment credit since they would collect a portion of roof and lawn runoff, but would not collect roadway runoff. In order to claim credit for stormwater treatment by constructing swales on private property, the St. Johns River Water Management District will require that the City provide an enforcement and maintenance vehicle, consisting of obtaining easements over the private property or adopting an Ordinance requiring that all property owners be in compliance within a specified timeframe. DRAFT 1:11MJI:iMILLLr, rw, ;r GU r. 4 STREET SWALES: Stormwater treatment may be provided by installing roadside swales on each street instead of providing treatment in Howell Park. This alternative may reduce the impact to forested areas of the park by 0.66 acres (60%), at an additional cost of approximately $363,641. "Sumps"would still be required to accomodate the proposed outfall pipes, and would impact 0.46 acres of forested area. E.T.M. and City staff reviewed this alternative with the Commission during the preliminary engineering phase, and concluded that it is not an acceptable alternative for this project due to the nature and extent of the associated negative impacts. We continue to be concerned about these negative impacts and wish to discuss these at the upcoming workshop meeting. REVERSE OR INVERTED STREET CROWNS: This option consists of reversing or inverting the crowns of the streets to a V section versus the current raised crown. The use of reverse crown street sections would not reduce the size of the underground Stormsewer system: would not present a significant cost savings; and presents a traffic safety hazard. Reverse crown sections are typically used in apartments and parking lots where speeds are substantially less than on City streets. BAFFLE BOXES: Stormwater treatment may be provided by installing.underground concrete baffle boxes on each sidestreet instead of providing treatment in Howell Park. This alternative would reduce the impact to forested areas of the park by 0.66 acres (60%), at an additional cost of approximately $191,286. "Sumps"would still be required to accomodate the proposed outfall pipes, and would impact 0.46 acres of forested area. As an option, the "Sumps" may also be eliminated by replacing the circular pipes along Sherry Drive with a box culvert. This alternative would reduce the impact to forested areas of the park by • an additional 0.31 acres (28%), at an additional cost of approximately $201,937. Some dlch • regrading and widening (along the existing 5th St. & 7th St. ditches) would still be required, and would impact 0.15 acres of forested area. DO NOT INSTALL CURBS &GUTTERS: The cost number of$1.5 million indicated in the Committee's report includes the costs associated with rebuilding the roadway pavement and the driveway connections. Since the roadway pavement and driveways should be rebuilt even if the street swale and/or reverse crown alternatives are utilized, the actual construction cost savings associated with eliminating the curb and gutter is approximately $330,000. If the curb and gutter system is eliminated, either street swales or reverse crown streets must be utilized to control runoff. If this is done, the cost of the swale section or reverse crown streets must be deducted from any savings realized from the curb and gutter removal. SECOND R>`COMMEND/4TION; As an interim measure, install additional catch basins on the existing stormsewer system at selected locations. This recommendation will not significantly reduce existing flooding because the primary problem appears to be the existing undersized stormsewer system rather than a lack of catch basins. DRAFT l'dY 1bYf?1 tfl',rLAUIL 1tt1f'1J&f;11LLt 141.1. 3100 I. THIRD RECOMMENDATION; Evaluate if some of the existing stormwater collection system piping is of sufficient size to be of use in the retro fit construction period. This was performed early on in the project, and it was found that the existing pipes (generally ranging in size from 10" to 15" on the sidestreets) were substantially undersized (the proposed stormwater piping in those areas generally ranges in size from 24"to 48"). FOURTH RECOMMENDATION: Coordinate with Assistant Public Works Director regarding specific ideas to provide cost savings on the sanitary sewer portion of the project. The Assistant Public Works Director indicated that if the reverse crown roadway alternative previously discussed were to be utilized, that would place the proposed stormsewer system in the center of the roadway, which would present the possibility of leaving the existing sanitary sewer (located on the side of the roadway) in-place and utilize slip-lining instead of replacement. However, the cost of slip-lining is generally greater than the cost of replacement if the cost of pavement repair is excluded. Since the pavement must be completely rebuilt in order to accomodate a reverse crown section, the cost of sewer replacement as currently planned appears to be less expensive than slip-lining in that scenario. FIFTH RECOMMENDATION; The J.E.A. should plan and engineer the underground electrical system in the Core City during this project. We agree that if the City decides to have the J.E.A. place the electrical'system underground, it should be accomplished in conjuction with the Core City improvement Project: SIXTH RECOMMENDATION; The Stormwater Master Plan should be reviewed and used as a guide to utilize the discussed concepts of the "Treatment Train". The Stormwater Master Plan was reviewed and used as a guide during the Preliminary Engineering phase of this project. Areas of proposed deviation from the Plan (such as Curb and Gutter, Howell Park, Johansen Park, and Seminole Road Ditch) were presented to the City Commission for review and decision. The Commission's decisions are reflected in the current design. The Master Plan only generally addresses stormwater treatment. However, there is no discussion in the Master Plan regarding constructing improvements to private property to reduce runoff. DRAFT DEC. 19. 1997 5: 16FM t.RrLJ:tl11 ftiIL4 MILLtX r, i00 r. a SEVENTH RECOMMENDATION: Evaluate using pervious surface material on the surface of the roads, and identify alternative residential streetscape designs and other innovative ways to reduce total impervious surface. The St. Johns River Water Management District has indicated that it does not recognize pervious roadways as a credit toward stormwater treatment. Therefore, the only potential advantage of pervious roadways would be a reduction in the runoff coefficient, with the hope of smaller pipe sizes as a result. Since only approximately 5% of the drainage basin for this project consists of roadway area, then reducing the runoff coefficient of the roadway area from 0.95 to 0.70 would only reduce the overall runoff coefficient for the drainage basin by approximately 1%, which is insignificant. (1.e. Imperv. Roadways, C = (60% open)"(0.20)+(35% lot coverage)'(0.95)+(5% roads)"(0.95) ' 0.50 Pervious Roadways, C = (60% open)'(0.20)+(35% lot coverage)*(0.95)+(5% roads)*(0.70) = 0.49) EIGHTH RECOMMENDATION; Increase natural Infiltration by various methods. INFILTRATION SYSTEMS: While infiltration systems are widely used in certain locations, they are generally not acceptable at these elevations and in areas of high groundwater. As a result of this, we anticipate limited benefits from this type of system at this location. • SMALL BASINS: There is not sufficient room within the existing right-of-way to provide the multiple small basins suggested. • Existing St. Johns River Water Management District rules require that any development larger than a four-unit complex be constructed with onsite stormwater treatment. At the City's option, these thresholds could be reduced to require the construction of stormwater holding areas on each lot. PRIVATE PROPERTY CONTROLS: Generally, the other suggested methods are not effective at significantly reducing the amount of runoff. However, if they are to be relied upon at all, a City Ordinance would be required to limit the amount of impervious area on private property and to require the planting of native vegetation. NINTH RECOMMENDATION; Reduce non-point source pollution by public education and participation in reducing or eliminating chemical applications on lawns, and other voluntary measures. In order to claim credit for stormwater treatment by eliminating application of lawn chemicals, the St. Johns River Water Management District would require that the City provide an enforcement vehicle, consisting of adopting an Ordinance to that effect. DRAFT ,DEL Pd. 1YYi b: 1 i't'6'1 l:.tltrLAf11! 1t1LM &M!LLt1'. Il V. oico I. i TENTH RECOMMENDATION; Establish control of future increases of storm water runoff. As mentioned previously (see eighth recommendation above), existing St. Johns River Water Management District rules require that any development larger than a four-unit complex be constructed with onsite stormwater treatment. At the City's option, these thresholds could be reduced to require the construction of stormwater holding areas on each lot. JYENTH RECOMMENDATION; Concern for long term flooding/property damage (City to assist individual property owners in identifying possible correction methods for houses that experience severe flooding or continuing property damage). Raising the foundations of the houses that experience severe flooding problems would reduce flood damage to those structures, however yard and street flooding would remain. TWELFTH RECOMMENDATION; Contruct pump station at Fleet Landing. We agree that constructing a stormwater pump station would reduce flood stages in the Selva Marina Lagoon.. Extensive downstream improvements (as further discussed in "The Why" section below) would also be required prior to installation of the pump station to prevent increasing downstream flooding. Anticipated cost is in excess of$1 million. However, this would not result in smaller pipe sizes in the Core City area, since the selection of the 2-year design storm anticipated that at some point in the future improvements may be made that would lower the tailwater, which would bring the proposed system closer to the accepted 5-year storm. THE WHY" ITEMS; In addition to the twelve specific recommendations above, the Committee identified the following items in "The Why"section of their report. UTILIZE ALTERNATE LOCATIONS FOR STORMWATER TREATMENT: -Setva Marina Lagoon This option was explored early in the design process and discussed with the St. Johns River Water Management District, but was eliminated for the following reasons: The City does not currently have ownership over most areas of the Lagoon, which would require condemnation proceedings and associated costs to obtain easements. This option would change the state classification of the Lagoon from the existing designation of Class III waters to a designation of stormwater treatment pond, which would prohibit fishing, boating, etc. We believe that it would not be possible to obtain agreements from all adjacent property owners on this issue. DRAFT DEC. 19. 1997 5: 1 PM ENGLAND THIMS&MILLER tdv. The Lagoon is currently classified as "Waters of the State" and therefore providing treatment in this area will require mitigation of degradation of State waters. -Sherman Creek We do not consider an interconnection with this creek to be a feasible alternative (either hydraulically or economically) due to the distance from the project area, and due to existing development in the path. -Hanna Park Lakes We do not consider an interconnection with these lakes to be a feasible alternative (either hydraulically or economically) due to the distance from the project area, and due to existing development in the path. They do not appear to be candidates for compensatory treatment due to the difference in drainage basin characteristics from the project area. CONSIDER 100-YR STORM &L.O.S. GUIDELINES WHEN SIZING "TREATMENT TRAIN": Treatment facilities are typically sized to meet the state water policy presumptive design and performance criteria of achieving at least an 80% reduction in the average annual load of pollutants. Stormsewer facilities are typically sized to convey a 5-year storm (= 6,5-inches in 24-hours). However, this project was designed to provide the level of service recommended in the Stormsewer.Master Plan, which is a 5-inches in 24-hour(=2-year) storm. Outfall systems are required to be analyzed for the even larger 25-year 24-hour storm per St. Johns River Water Management District requirements. These requirements were met for this project. FLEET LANDING WEIR OPTIONS: -Provide Adjustable Weir Height The current design includes replacing the existing flashboard riser structure with an adjustable mechanical weir gate. -Install Flap Gate on Downstream Side We agree that installing a flap gate may provide some degree of protection from backflow from extremely high tides, but computer modelling indicates that it would not significantly reduce the peak flood stages in the Selva Marina Lagoon produced by storm events. -Construct Pump Station We agree that constructing a stormwater pump station would reduce flood stages in the Selva Marina Lagoon. Extensive downstream improvements (as further discussed below) would also be required prior to installation of the pump station to prevent increasing downstream flooding. Anticipated cost is in excess of$1 million. However, this would not result in smaller pipe sizes in the Core City area, since the selection of the 2-year design storm anticipated that at some point in the future improvements may be made that would lower the tailwater,which would bring the proposed system closer to the accepted 5-year storm. DRAFT ,L' . 1d. 199i tli LAUD iilit:lJ&;:! _.. Liu. i00 r. REMOVE DOWNSTREAM CONSTRICTIONS: We agree that replacing the downstream culverts at Al A and Wonderwood (along with associated channel improvements) would reduce flood stages in the Selva Marina Lagoon. Anticipated costs are approximately $600,000 for the box culvert replacements and approximately $250,000 for the channel widening. This was analyzed in the preliminary engineering phase and was determined to have limited benefit in the Core City area. Please feel free to contact us if you have any questions or require additional information. Sincerely, ENGLAND,THIMS & MILLER, INC. N. Hugh Mathews, P.E. Executive Vice President cc: Mayor and Commissioners, City of Atlantic Beach Mr. Jim Jarboe, City of Atlantic Beach Mr. Bob Kosoy, City of Atlantic Beach DRAFT Utl4. id. 1VVi i: 1tiIM tilV1.i1I) lri1F1J&P11LLt !<: 14V. 7)i0G r. lU EXHIBIT #1 - BAFFLE BOXES DELETIONS: CLEARING&GRUBBING LS $ 3,500 POND EXCAVATION LS $ 50,000 TREE MITIGATION IN 1,452 $ 82.50 $ 119,790 COST DECREASES SUBTOTAL= $ 173,290 ADDITIONS; CONCRETE BAFFLE BOX EA 13 $ 20,000 $ 260,000 ENGINEERING & PERMITTING LS $ 79,625 COST INCREASES SUBTOTAL = $ 339,625 NET SUBTOTAL= $ 166,335 15% CONTINGENCY= $ 24,951 NET INCREASE IN COST= $ 191,286 DRAFT 1J. I J• l O r 1Y1 81W 1.1• Il 1 II 1 Ce1J°611 L L C f. , i 0 0 r. 11 EXHIBIT #2 - BAFFLE BQXES $, BOX CULVERT DEL TONS; 48"RCP CLASS III STORMSEWER LF 314 $ 76 $ 23,864 60"RCP CLASS III STORMSEWER LF 361 $ 118 $ 42,598 66" RCP CLASS III STORMSEWER LF 686 $ 194 $ 133,084 72" RCP CLASS III STORMSEWER LF 192 $ 200 $ 38,400 TYPE "J-1" CONFLICT MANHOLE (6') EA _ __ 12 $ 3,000 $ 36,000 MULCH PEDESTRIAN TRAIL LF 900 $ 10.00 $ 9,000 WOOD DECK OVER M.E.S. EA 2 $ 7,500.00 $ 15,000 CLEARING &GRUBBING LS $ 5,500 POND EXCAVATION LS $ 75,000 TREE MITIGATION IN 2,134 $ 82.50 $ 176,055 COST DECREASES SUBTOTAL= $ 554,501 ADDLTIONS; CONCRETE BAFFLE BOX EA, 13 $ . 20,000 $ 260,000 8'x 3'CONCRETE BOX CULVERT LF . 1,553 $ 350 $ 543,550 • ENGINEERING & PERMITTING LS $ 92,884 COST INCREASES SUBTOTAL= $ 896,434 NET SUBTOTAL= $ 341,933 15%CONTINGENCY= $ 51,290 NET INCREASE IN COST = $ 393,223 DRAFT 1-1 . 1 7, i I ;.1. 1011G17VL1111L, 11111e1JiXf'11LLGIi 14V, J j OU L. IL EXHIBJU - _STREET SWALES (WI CURB & MAT) DELETIONS: CLEARING & GRUBBING LS $ 3,500 POND EXCAVATION LS $ 50,000 TREE MITIGATION IN 1,452 $ 82.50 $ 119,790 CURB&GUTTER LF 30000 $ 10.40 $ 300,000 COST DECREASES SUBTOTAL= $ 473,230 ADDITIONS; EROSION CONTROL MAT SY 34,000 $ 5 $ 17Q000 RIBBON CURB LF 30,000 $ 10.00 $ 300,000 ENGINEERING &PERMITTING LS $ 319,499 COST INCREASES SUBTOTAL= $ _789,499 NET SUBTOTAL= $ 316,209 15%CONTINGENCY= $ 47,432 NET INCREASE IN COST = $ 363,641 DRAFT UL L 1”( J• 1011F1 1L111F1Ja"z1LL2., 17V• JlOU L. . EXHIBIT #4 - STREET SWALES (WIO CURB&MAT) & BOX CULVERT DELETIONS; 48" RCP CLASS lil STORMSEWER LF _ 314 $ 76 $ 23,864 60" RCP CLASS III STORMSEWER LF361 $ 118 $ 42,598 66" RCP CLASS III STORMSEWER __ -6-86 _LF 686 $ 194 $ 133,084 72" RCP CLASS III STORMSEWER LF 192 $ 200 $ 38,400 TYPE "J-1"CONFLICT MANHOLE (8') EA 12 $ 3,000 $_ 36,000 MULCH PEDESTRIAN TRAIL LF 900 $ 10.00 $ 9,000 WOOD DECK OVER M.E.S. EA 2 $ 7,500.00 $ 15,000 CLEARING &GRUBBING LS $ 5,500 POND EXCAVATION LS $ 75,000 CURB &GUTTER LF 30,000 $ 10.00 $ 300,000 TREE MITIGATION IN 2,134 $ 82.50 $ 176,055 COST DECREASES SUBTOTAL= $ 854,501 ADDITIONS; CONCRETE BAFFLE BOX EA $ $ _ EROSION CONTROL MAT SY $ $ RIBBON CURB LF $ $ ADDITIONAL PAVEMENT STRIP SY 3,333 $ 11.50 38,330 8' x 3' CONCRETE BOX CULVERT LF 1,553 $ _ 350 $ 543,550 ENGINEERING & PERMITTING LS $ 319,499 COST INCREASES SUBTOTAL= $ 901,379 NET SUBTOTAL= $ 46,878 15% CONTINGENCY= $ 7,032 NET INCREASE IN COST = $ 53 910 DRAFT