Loading...
Exh 8I.., ; ~ - /~~ 99 CITY OF ATLANTIC BEACH ' CITY COMMISSION STAFF REPORT AGENDA ITEM: Authorization for Design Work on Pine Street DATE: Apri17, 1999 SUBMITTED BY: David E. Thompson, City Manager BACKGROUND: Please see the attached March 12, 1999 report by the City Manager ' on flooding problems on Pine Street. Since the report was prepared, I have met with representatives from the neighborhood and found out additional information on flooding problems including insurance claims, missed work, missed school, and the postponement of medical treatment as a result of flooded streets and other property on Pine Street. After reviewing the matter with staff, it is clear that there is a cost savings to complete all of the design work for the 200 and 300 blocks of Pine Street at the same time as the 100 Block (which his already underway). `'Ve have an estimate from Smith and Gillespie Engineers, Inc. to complete this work for $5,200. Since Smith and Gillespie is already on contract with the City of Atlantic Beach designing similar projects (including the 100 block of Pine Street), it is feasible to expand the scope of the existing contract through a change order in account #470-0000-538-6300. RECOMMENDATION: We recommend that the City Commission authorize a change order for Smith and Gillespie Engineers, Inc. to increase the design scope of their stormwater improvements to include Pine Street from David Street to the entrance of Howell Park. ATTACHMENT: See March 12, 1999 Staff Report and Pine Street Observations report prepared by the City Manager Letter from Smith and Gillespie Engineers, Inc. Providing Cost Estimate REVIEWED BY CITY MANAGER: AGENDA ITEM NUMBER: CITY OF ATLANTIC BEACH CITY COMMISSION STAFF REPORT AGENDA ITEM: Pine Street Drainage DATE: March 12, 1999 SUBMITTED BY: David E. Thompson, City Manager BACKGROUND: ~ A petition was submitted to the City requesting curb and guttering on the 200 Block of Pine Street to alleviate flooding in the neighborhood (See Attachment). Initially, it was recognized that there was no money budgeted for such a project, and such an expenditure should be evaluated by the City Commission during the budget cycle for 1999-2000. However, it is also apparent that if the 100 Block of Pine Street is going to be improved in the 1998-99 budget, then we can save some money by doing the 200 Block at the same time. As a result, City Staff has identified funds that maybe used for such a project, and they have obtained estimates of the costs for it. However, there are some observations that should be considered before a decision is made on this matter. Please see the attached observations and photographs relative to this matter. RECOMMENDATION: ATTACHMENT: Report and Photographs from Pine Street REVIE`'VED BY CITY MANAGER: AGENDA ITEM NUMBER: l Pine Street Observations City Manager Report March 12, 1999 Observations: 1. The drainage design that was originally planned and implemented in the Pine Street azea has been significantly compromised by homeowners and residents who live there. There are numerous cases where landscaping has been added, driveways have been added (without culverts), swales have been filled in, and other alterations have been made which cleazly disrupt the drainage. These alterations prevent the water from flowing to the storm drains. In some cases, the alterations cleazly create a dam and create a flooding problem for homeowners. Please see the attached photographs which show some of the most obvious alterations of the drainage system. The past alterations have varied considerably relative to City review. Some of the work has been done without permits. Within a year of Public Works Director Bob Kosoy's arrival, driveway permits were required to be ~~ reviewed and approved relative to their impact on drainage. However, there was no review for drainage impact for more than ten years after the subdivision was essentially completed. 2. Historically, the Salt Air subdivision has been very wet for many years. After the development vas originally built and the original drainage designs were in place, there were flooding problems. Newspapers showed photographs of people canoeing down some of the streets in the area. One of the key areas of concern was the lack of drainage from the Howell Park waterways. The culverts running under Seminole Road and Plaza Drive were too small. The water consequently backed up and flooded the Salt Air streets and homes. These culverts were replaced with lazger culverts in later years, and it helped to alleviate some of the flooding. However, it has not eliminated the street flooding problems. Several yeazs ago, after repeated flooding problems along Poinsettia Street (and other neazby streets), the drainage along some of the streets was redesigned and implemented. The improvements greatly improved the situations for some of the streets. Pine Street was not included in the new drainage work. l In the 1998-99 budget, funds were allocated for improving the 100 Block ~, of Pine Street, and the preliminary design work (30% plans) were received 3/12/99. The estimated cost of the improvements is about $50,000. If the 100 Block of Pine Street is constructed, the City should expect to receive pressure from neighboring streets based on the argument that "If you do it for them, then you should do it for me." At the current time, it would be difficult to explain why we are going to curb and gutter the 100 Block and not the 200 Block. At the current time, no money was budgeted for drainage improvements to the 200 Block of Pine Street. However, you will find an attachment for the design work for the 200 Block at an estimated cost of about $5,200. If the design and construction work is done together with the 100 Block, then there is a significant savings that may be realized as compared to designing and constructing the projects sepazately. 3. The City of Atlantic Beach has documented and submitted claims for past flood events in Atlantic Beach, and there have not been any claims for Pine Street residents during those events. This does not mean that none of the residents have incurred losses from flooding, but it means that they did not contact the City about the claims. 4. The storm drains along Pine Street flow into Howell Park. After (~ reviewing the locations with Public Works staff, it appears that the water must pass through (or over) the culvert located at the North end of Pine Street in the pazk. An examination of the standing water on March 11, 1999, which was at a time when there had not been any rain for several weeks, revealed that the culvert remained about half full of water. It was obvious that the build up of silt and soil north of the culvert has limited the ability of the water to drain from the Pine Street area. Instead, there is standing water in the culvert, and the downstream azea is so clogged with soil and silt that water does not drain well. Without good drainage away from the Salt Air area, it is probable that water will continue to back up into Pine Street regardless of curbs and gutters. 5. The dredging of the Howell Pazk water channels was originally considered in the Core City Project, and this would probably improve the situation in the Salt Air development. In subsequent Core City Plans, the dredging was eliminated. As of this date, 3/16/99, we do not know whether or not the newest Core City plans will address the Howell Park drainage. t Summary: As you can see from the information above, there are many factors to be considered relative to drainage on Pine Street. After the City Commission has had a chance to review this information, they may wish to provide guidance to staff relative to their need for additional research and possible options. The purpose of this correspondence is to provide information for the City to consider relative to the petition submitted by Pine Street residents. Disclaimer: I am not an engineer and I do not have any particular expertise in storm water management or flooding. This lack of expertise causes me to rely on logic and common sense in observing and evaluating problems, and often common sense lacks an empirical foundation on which to base opinions and ideas. However, these observations and opinions are offered for the consideration of the City Commission relative to the 100 and 200 Blocks of Pine Street. David E. Thompson, City Manager ~-~ ~.. cv-+ SMITH AND GILLESPIE ENGINEERS. INC. POST OFFICE BOX 53138 /~ JACKSONVILLE. FLORIDA 32201 <90a) 7a3-6950 March 15, 1999 Mr. Robert S. Kosoy, P.E. Director of Public Works City of Atlantic Beach 1200 Sandpiper Lane Atlantic Beach, Florida 32233 Subject: Engineering Services Stormwater Design S&G Project No. 8505-24-01 Atlantic Beach, Florida Dear Mr. Kosoy: DOUGLAS E. LAYTON, P.E. VICE PRESIDENT GENERAL MANAGER Thank you for your request to increase the design scope of our stormwater improvements. Our fee for this additional work is: Design $4,000 Permitting $ 0 Survey Subconsultant $1.200 Total Proposed S&G Fee $5,200 Lump Sum The following describes the scope of services associated with the above breakdown of our fee proposal. No work is included unless specifically delineated below: Expand the area of street and drainage improvements on Pine Street to include the block from David Street to Seaspray Avenue, and the partial block from Seaspray Avenue to the entrance of Howell Park. The design to be added to the plans and specifications being prepared under our current authorization. We understand the scope of engineering services will include the preliminary and final design, including permitting, for the following improvements: 1. Provide drainage improvements on Pine Street from David Street to Seaspray Avenue, and the partial block from Seaspray Avenue to the entrance to Howell Park. The improvements will be similar to those designed for the block of Pine Street from Sturdivant Street to David Street. 2. The level of engineering services will be as defined in the original authorization for ~~ the subject project. Mr. Robert S. Kosoy, P.E. ~~ S&G Project No. 8505-24-01 March 15, 1999....page 2 3. We intend to make use of applicable Public Works Department plans and other public records in the preparation of our design plans. Field survey will be needed to complete our design. 4. In these sections of Pine Street, the prime concern is elimination of minor flooding in driveways, while maintaining the integrity of the streetscape. The work involves approximately ?50 feet ~of street, with rciri0val and replaCeZT'icrit of driveways as necessary, and construction of Miami curb and gutter to direct the street runoff toward existing storm inlets. If the survey reveals inadequate grades to accomplish drainage by curb and gutter alone, we will design a drainage inlet and pipe system to serve the street, and connect to the nearest existing inlets. 5. Permitting to the St. Johns River Water Management District will be part of our overall project permit submittal and is not anticipated to require additional ` engineering costs ~, 6. The City has elected to address engineering support during construction at a future time. Therefore,no services after recommendation of award are included in our proposed fee. We remain available to assist the City during construction if requested by the City. The above is proposed under the general terms of our continuing Engineering Contract with the City ofAtlantic Beach dated June 1, 1985. We will be glad to discuss this proposal in greater detail at your convenience. Sincerely, SMITH AND GILLESPIE ENGINEERS, INC. _~ Douglas E on XC: thief David Thompson, City Manager