Consideration and Approval of Contract:   Approve the construction contract with Eagle Mountain Construction Company in the amount of $229,113.00 for the Milton Sewer Rehabilitation, Phase 2.

Award of this contract will authorize the construction of the second phase of the Milton Sewer Rehabilitation project in accordance with the approved public improvement plans prepared by Brown & Caldwell.  The work will slip line 516 linear feet of 8-inch diameter sewer main and 344 linear feet of 12-inch diameter sewer main with cured-in-place pipe (CIPP) liner and will rehabilitate 5 sewer manholes.  Please see the attached context and vicinity maps.
 

The work is funded from the FY18 Annual Sewerline Replacement Program  (account numbers 203-08-375-3220-0-4463 and 203-08-375-3368-0-4466).

Council Goal - Transportation and Other Public Infrastructure
Deliver quality community assets and continue to advocate and implement a highly performing multi-modal transportation system. 

Team Flagstaff Strategic Plan
Priority #3 (2) Deliver outstanding services through a healthy environment, resources, and infrastructure.

Regional Plan
Policy WR2.2 - Maintain and develop facilities to provide reliable, safe and cost-effective water, wastewater and reclaimed water services.

Council previously approved the FY18 Annual Sewerline Replacement in the FY18 budget.   

 

1. Approve the award as recommended.  Approval will allow work to move forward in calendar 2018.
2. Reject all bids.  This action would delay the project.  If rejection occurs, possible options include;
   1. Re-advertise the project and open new bids; or
   2. Suspend or cancel the project.

The City performs ongoing pipeline inspections in the wastewater collection system.  An inspection discovered severe corrosion in a 160 linear foot section of the 8" diameter sewer main located under South Milton Road between Butler Avenue and Tucson Avenue.  Replacement of the severely compromised sewer pipe in the initial phase of the project was completed in July 2017 by Achen-Gardner Construction via a Job Order Contract. 

On January 18, 2018, the Purchasing section posted an Invitation for Bids (IFB) solicitation for construction on the PlanetBid's website and advertised the IFB in the Arizona Daily Sun on January 21 and 28, 2018. There were three (3) bids received and opened electronically on February 15, 2018 (Bid summaries identified in the Key Considerations section below). Eagle Mountain Construction Company was determined to be the lowest responsive and responsible bidder.   
 
 

The second phase of the work will be slip lining 860 linear feet of sewer main with a cured-in-place pipe (CIPP) liner from Phoenix Avenue to Butler Avenue and rehabilitation of the associated manholes.  The interior of the manholes will be cleaned, patched and will receive a coating to protect against corrosion. 

On February 15, 2018, three (3) bids were received for the second phase of the project. 
 

Eagle Mountain Construction	$229,113.00
Engineer’s Estimate	$250,000.00
Kinney Construction, LLC	$292,061.00
Standard Construction Company	$513,408.00

 
The contract allowance is established to address unanticipated items of work, unknown items of work and/or differing field conditions and is included in the contract amount.  The $20,000 contract allowance is 8% of the engineer’s estimate of cost.  The allowance is used only at the City’s discretion. 
 
Change Order Authority establishes a dollar amount (10% of the contract amount, less allowance) and provides the City Manager, on behalf of the Council, authority to amend the contract amount in response to unforeseen costs that are more than the contracted amount. 

The work is funded from the FY18 Annual Sewerline Replacement Program.

Milton Rd. Sewerline Rehabilitation	$300,000
Aging Sewer Infrastructure Replacements	$120,000
	$420,000

 
 

The project will ensure the integrity of this segment of the wastewater collection system for years to come.