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AGENDA ITEM #4C _ ,
AUGUST 26, 2002
,~,,, ~ CITY OF ATLANTIC BEACH
CITY COMMISSION MEETING
_ STAFF REPORT
AGENDA ITEM: Lift Station "B" Force Main Upgrade
Bid No. 0102-17 (Re-Bid)
SUBMITTED BY: Donna Kaluzniak, CEP, Utility Director
DATE: August 16, 2002 _
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BACKGROUND: One of the recommendations ofthe Sewer Master Plan was to
~± replace the existing 10-inch diameter force main from Lift Station B (4251 l~' St.) with a
new 12-inch force main. This force main carries wastewater from Lift Station A (460
Palm Ave.) and Lift Station B to Wastewater Treatment Plant No. 1 (1100 Sandpiper
~^ Lane), and the size and method of connection of this force main were determined to be
restrictive, a contributing factor to sanitary sewer overflows during heavy rainfalls.
^± The force main is located in an easement running through the Selva Lakes subdivision,
and residents have built improvements over the easement, making access very difficult.
Aikenhead & Odom designed the replacement force main, specifying trenchless
~""~ technology be used within the easement to avoid disturbing the area. Staffprepared bid
documents.
""" Bids were advertised, and seven invitations were sent to bidders, but only Gruhn May,
.. Inc. submitted the required documentation to prequalify for the original bid. Gruhn May
submitted bids using both the pipebursting and directional drilling methods, but both bids
"°"! were significantly over the budgeted amount, and on June 24, 2002 the City Commission
rejected all bids and authorized staff to re-bid the project.
~"'? The project was re-advertised, and two bidders prequalified and attended the mandatory
Pre-Bid Meeting on July 23, 2002. Two bids were received on July 31, 2002, both
utilizin the directional drillin method in the easement area.
Gruhn May, Inc. Slaughter Construction Co.
Base Bid $269,805.80 $271,040.00
,~ 15% Contingency $40,470.87 $40,656.00
Total Base Bid $310,276.67 $311,696.00
~., Gruhn May, Inc. is the low bidder, but both bids were again well over the budgeted
amount of $130,000. Staff discussed options and consulted our engineers, and
determined that the City could still realize a significant improvement in system
R.,, performance with a reduced scope for this project, consisting of replacing only the
' portion of the force main from the east side of Sandpiper Lane to the treatment plant, and
including the relocated force main connection points.
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AGENDA ITEM #4C
AUGUST 26, 2002
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~,,, City staff contacted Gruhn May to ask if they would consider reducing the scope of work
rc while retaining the same unit prices, and they agreed. The cost for the project with the
reduced scone of work will be $127.598.25:
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BUDGET: Budget for this project was $130,000, based on the rough estimate
'^^' provided in the Sewer Master Plan. Aikenhead and Odom's determination of probable
costs after design completion was $179,000. High prices from subcontractors, costs of
bypassing lift station flow during construction, difficult access through the easement, and
'""" roadway crossings accounted for the high amount of the bid.
RECOMMENDATION: Award the contract for the Lift Station"B" Force Main
""'' ....Upgrade, Bid No. 0102-17 (Re-Bid) to Gruhn May, Inc. with a reduced scope in
' ~ quantities as shown on attachment No. 3 "Bid Analysis-Lift Station B Force Main
Upgrade-Reduced Scope of Work."
..,
' ATTACHMENTS: i s Bid tabulation for Bid No. 0102-17
2. Bid analysis
~` 3. Bid analysis - educed Scope of Work
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('iruhn May, Inc. Slau hter Construction
Base Bid-Reduced Scope $110,955.00 $111,810.00
15% Contin enc $16,643.25 $16,771.50
Total Bid with Reduced Scope $127,598,25 $128,581.50
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AGENDA ITEM #4C
~*, AUGUST 26, 2002
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BID ANALYSIS =- LIFT STATION "B"FORCE MAIN UPGRADE
Gruhn May, Inc. Slaughter Const. Co.
Item # Est. Qty. Units Description Unit Price Total Price Unit Price Total Price
1 Dewatering, Site Preparation, Clean Up,
and Restoration, Bypass Pumping and
Vacuum Truck Pumping: Not Pay
Items, Subsidia to Other Pa Items
2 920 LF Abandon 10" pipe -- Grout $7.50 $6,900.00 $10.00 $9,200.00
3 450 LF Abandon 8" pipe.-- Grout $7.00 $3,150.00 $10.00 $4,500.00
4 25 CY Special Grandular Bedding ! Backfill $30.00 $750.00 $35.00 $875.00
5 25 CY A-3 Soil Backfill $15.00 $375.00 $12.00 $300.00
6 150 SY Sodding $4.00 $600.00 $6.00 $900.00
7 450 SY Seeding & mulching $2.90 $1,305.00 $1.00 $450.00
8 232 SY Pavement Removal $6.40 $1,484.80 $3.00 $696.00
9 232 SY Paving Repair -Case II $39.00 $9,048.00 $30.00 $6,960.00
10 28 SY 6" Concrete Pavement Repair $65.00 $1,820.00 $30.00 ° $840.00
11 20 LF 6' Wood Fence R & R $50.00 $1,000.00 $15.00 . $300.00
12 1 LF 18" RCP R & R $150.00 $150.00 $65.00 $65.00
13 1 EA Type C Inlet R & R $4,200.00 $4,200.00 $1,200.00 $1,200.00
14 1 EA Type CManhole w/liner $5,600.00 $5,600.00 $1,500.00 $1,500.00
15 1338 LF 12" PVC DR 18 Force Main $73.00 $97,674.00 $86.00 $115,068.00
16 673 LF 12" HDPE SDR 11 Force Main $89.00 $59,897.00 $82.00 $55,186.00
17 3 EA 12" 11- 1 /4 Send $730.00 $2,190.00 . $500.00 $1,500.00
18 22 EA 12" 22- 1/2 Bend $730.00 $16,060.00 $500.00 $11,000.00
19 6 EA 12" 45 Bend $850.00 $5,100.00 $500.00 $3,000.00
20 1 EA 12" 90 Bend $900.00 $900.00 $500.00 $500.00
21 2 EA 12" Tee $900.00 $1,800.00 $600.00 $1,200.00
22 1 EA 12" x 8" Reducer $610.00 $610.00 $400.00 $400.00
23 ~ 1 EA 12" x 8" Reducing 90 $900.00 $900.00 $500.00 $500.00
24 4 EA 10" Plug $520.00 $2,080.00 $250.00 $1,000.00
25 2 EA 8" Plug $520.00 $1,040.00 $250.00 $500.00
26 9 EA Install 12" Bell Restraint $153.00 $1,377.00 $250.00 $2,250.00
27 0 EA Install 12" Thrust Collar $0.00 $0.00
28 35 LF 8" DR18 Force Main $115.00 $4,025.00 $70.00 $2,450.00
29 2 EA 8" 45 Bend $750.00 $1,500.00 . $300.00 $600.00
30 1 EA 12" Gate Valve $1,890.00 $1,890.00 $2,000.00 $2,000.00
31 1 EA 12" x 18" Tapping Sleeves & Valve $6,850.00 $6,850.00 $4,000.00 $4,000.00
32 1 EA 12" Tapping Sleeves & Valve $5,430.00 $5,430.00 $3,800.00 $3,800.00
33 1 EA 8" Tapping Sleeves & Valve $3,900.00 $3,900.00 $2,300.00 $2,300.00
34 1 EA 2" Air Release Valve $2,100.00 $2,100.00 $1,000.00 $1,000.00
SUBTOTAL $251,705.80 $236,040.00
35 1 LS Payment and Performance Bond $3,000.00 $3,000.00 $4,000.00 $4,000.00
36 1 LS General Conditions 13,500.00 $13,500.00 $25,000.00 $25,000.00
37 1 LS Testing Allowance $500.00 $500.00 $2,000.00 $2,000.00
38 1 LS Maintenance of Traffic $1,100.00 $1,100.00 $4,000.00 $4,000.00
TOTAL $269,805.80 $271,040.00
0.15 Contingency 15°l0 $40,470.87 $40,656.00
GRAND TOTAL includin contin enc $310,276.67 . $311,696.00
BID ANALYSIS -- LIFT STATION "B" FORCE MAIN UPGRADE =REDUCED SCOPE OF WORK
Gruhn May, Inc. Slaughter Const. Co.
Item # Est. Qty. Units Description Unit Price Total Price Unit Price Total Price
1 Dewatering, Site Preparation, Clean Up,
and Restoration, Bypass Pumping and
Vacuum Truck Pumping:. Not Pay
Items, Subsidia to Other Pa Items
2 200 LF Abandon 10" pipe -- Grout $7.50 $1,500.00 $10.00 $2,000.00
3 450 LF Abandon 8" pipe--Grout $7.00 $3,150.00 $10.00 $4,500.00
4 10 CY Special Grandular Bedding / Backfill $30.00 $300.00 $35.00 $350.00
5 10 CY A-3 Soil Backfill $15.00 $150.00 $12.00 $120.00
6 50 SY Sodding $4.00 $200.00 $6.00 $300.00
7 200 SY Seeding & mulching $2.90 $580.00 $1.00 $200.00
8 100 SY Pavement Removal $6.40 $640.00 $3.00 $300.00
9 100 SY Paving Repair -Case II $39.00 $3,900.00 $30.00 $3,000.00
10 28 SY 6" Concrete Pavement Repair $65.00 $1,820.00 $30.00 $840.00
11 0 LF 6' Wood Fence R & R $50.00 $0.00 $15.00 $0.00
12 0 LF 18" RCP R & R $150.00 $0.00 $65.00 $0.00
13 0 EA Type C Inlet R & R $4,200.00 $0.00 $1,200.00 $0.00
14 0 EA Type C Manhole wlliner $5,600.00 $0.00 $1,500.00 $0.00
15 100 LF 12" PVC DR 18 Force Main $73.00 $7,300.00 $86.00 $8,600.00
16 400 LF 12" HDPE SDR 11 Force Main $89.00 $35,600.00 $82.00 $32,800.00
17 1 EA 12" 11- 1/4 Bend $730.00 $730.00 $500.00 $500.00
18 2 EA 12" 22- 1!2 Bend $730.00 $1,460.00 $500.00 $1,000.00
19 4 EA 12" 45 Bend $850.00 $3,400.00 $500.00 $2,000.00
20 1 EA 12" 90 Bend $900.00 $900.00 $500.00 $500.00
21 2 EA 12"' Tee $900.00 $1,800.00 $600.00 $1,200.00
22
1
EA
12" x 8" Reducer
$610.00
$610.00
$400.00 _
$400.00
23 1 EA 12" x 8" Reducing 90 $900.00 $900.00 $500.00 $500.00
24 1 EA 10" Plug $520.00 $520.00 $250.00 $250.00
25 2 EA 8" Plug $520.00 $1,040.00 $250.00 $500.00
26 5 EA Install 12" Bell Restraint $153.00 $765.00 $250.00 $1,250.00
27. 0 EA Install 12" Thrust Collar $0.00 $0.00
28 40 LF 8" DR18 Force Main $115.00 $4,600.00 $70.00 $2,800..00
29 2 EA 8" 45 Bend $750.00 $1,500.00 $300.00 $600.00
30 1 EA 12" Gate Valve $1,890.00 $1,890.00 $2,000.00 $2,000.00
31 2 EA 12" x 18" Tapping Sleeves & Valve $6,850.00 $13,700.00 $4,000.00 $8,000.00
32 0 EA 12" Tapping Sleeves & Valve $5,430.00 $0.00 $3,800.00 $0.00
33 1 EA 8" Tapping Sleeves & Valve $3,900.00 $3,900.00 $2,300.00 $2,300.00
34 0 EA 2" Air Release Valve $2,100.00 $0.00 $1,000.00 $0.00
SUBTOTAL $92,855.00 $76,810.00
35 1 LS Payment and Performance Bond $3,000.00 $3,000.00 $4,000.00 $4,000.00
36 1 LS General Conditions 13,500.00 $13,500.00 $25,000.00 $25,000.00
37 1 LS Testing Allowance $500.00 $500.00 $2,000.00 $2,000.00
38. 1 LS Maintenance of Traffic $1,100.00 $1,100.00 $4,000.00 $4,000.00
TOTAL $110,955.00 $111,810.00
0.15 Contingency 15% $16,643.25 $16,771.50
GRAND TOTAL inc(udin contin enc $127,598.25 $128,581.50