CITY MANAGER AUTHORITY PROCUREMENT AWARD
ACTION REQUESTED:
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Approve the award of Change Order #2 to Option Year One of Contract 22-058, Storm Sewer Rehabilitation - Cured-In-Place Pipelining (CIPP), to Hoerr Construction Inc. for an amount not to exceed $9,010 and a total award of $781,510
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DEPARTMENT: Department of Public Works
SUBMITTED BY: Richard Dublinski, Director
BOARD/COMMISSION REVIEW:
N/A
BACKGROUND:
The Department of Public Works (DPW) maintains the City’s system of storm sewers. Storm sewers have a functional lifespan of approximately 75 years. As a storm sewer ages, the pipes develop cracks caused by material degradation, soil settlement, root intrusion, and/or adjacent construction. When a segment of storm sewer approaches the end of its useful life, the extent and severity of pipe degradation results in a high probability for pipe/system failure. Pipe failure may cause sinkholes in roadway surfaces and may also result in flooding of homes, businesses and/or public rights-of-way. The City has relined approximately 228,000 linear feet of pipe since the inception of the Storm Sewer Lining Program (SW017) in 2004, which has led to a reduction in localized flooding and related complaints.
In March 2022, the City Council awarded Bid 22-058, Storm Sewer Lining, for the rehabilitation of approximately 13,600 feet of storm sewer by the installation of cured-in-place pipe (CIPP). The contract includes a pre-inspection and cleaning of all pipes, the installation of CIPP, and the inspection of each completed installation by closed circuit television. In 2022, work was completed in Wildflower, Lakewood Crossing, and Ivy Ridge subdivisions as well as single run section repairs in other areas. Change Order #1 was approved by the Chief Procurement Officer in August 2022 for the use of contingency funds to line a backyard storm drain as part of the solution to drainage issues near Fairway Lane and Knoll Drive.
The term of this contract is for seven months from date of award to October 15, 2022, with two, one-year options to extend
DISCUSSION:
Upon approval of the use of contingency funds to line a backyard storm drain as part of the solution to drainage issues near Fairway Lane and Knoll Drive, Hoerr construction went on site to complete the lining. They found that the storm drain had collapsed and the lining could not be completed as planned. The best option to now complete the repair without disturbing the extensive landscaping over the drain, is to pipe burst a new 4” pipe in it’s place. If the repair is not made the overall drainage in the area will be affected and could cause flooding issues.
This contract was approved with contingency in the amount of 3% of the original contract value. This solution will require a change order in the amount of $9,010 over the contingency amount. A summary of the award and contingency information is provided in the tables below.
|
Original Contract Value |
$750,000 |
|
Prior Cumulative Approved Change Orders |
$22,500 |
|
Subtotal |
$772,500 |
|
(+/-) This Change Order |
$9,100 |
|
Total Contract Value |
$781,510 |
|
Authorized Contingency |
Days |
Dollars |
|
Original Amount |
|
$22,500 |
|
(-) Previously Authorized |
|
$22,500 |
|
Subtotal |
|
$22,500 |
|
(-) This Change |
|
|
|
Balance Left |
|
$0 |
FISCAL IMPACT:
CIP #: SW017
Storm Sewer Rehabilitation CIPP is expensed to the Infrastructure account listed below. This work is related to SW017, Storm Sewer Lining Program, for which $750,000 has been budgeted in 2022. The requested change order exceeds the budgeted amount, but funding is available due to underspend in other stormwater CIP projects.
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Account Number |
Fund Description |
Total Budget Amount |
|
31252200-551502 |
Capital Projects Fund |
$2,705,000 |
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