CC Ashland Creek Sewer Phase 2

CC Ashland Creek Sewer Phase 2
Council Communication
March 5, 2013, Business Meeting
Award of a Contract to the Apparent Low Bidder for the Ashland Creek Sanitary
Trunkline Sewer Phase Two
Scott A. Fleury, Engineering Services Manager, Public Works Department, [email protected]
On February 19, 2013, bids submitted for the Ashland Creek Trunkline Reconstruction phase 2 were
opened and publicly read. Bids were received from three contractors with Michels Corporation
providing the low bid of $213,172. This project involves re-lining 1,449 lineal feet of sewer line along
the bank of Ashland Creek, north of Hersey Street.
Bidding Procedure:
The Ashland Creek Trunkline Reconstruction phase two was publicly bid on February 5, 2013. Project
plans and specifications were sent to several plan review centers and were included on the City’s
website. Bids were opened on February 19, 2013, at 2 p.m. Three contractors responded. All three
bids were valid and contained the required bonds, documentation, and acknowledgements. Bidding
information is shown on the attached proposed summary.
Project Description:
Phase two of the project involves relining approximately 1,449 lineal feet of the existing trunk sewer
that runs along the west bank of Ashland Creek from Hersey Street north. This relining procedure is
called “cured in place pipe.” It is an innovative, advanced process by which new PVC pipe material is
inserted into the old pipe through existing manholes and is then “cured in place.” This effectively
creates a brand new, extremely durable “pipe within a pipe.” It is expected to be in service for 150
years or more.
The original trunkline was built in 1905 and was constructed using vitrified clay pipe material. This
line was severely damaged in several places during the 1997 flood and repaired using outdated
technology. Spot repairs have also been performed due to severe root damage done by large trees that
grew up directly over the sewer through the years. During the previous repair processes and in the
years since, it has become evident that the century old sewer has outlived its useful life and must be
rehabilitated in order to bring it to today’s environmental and safety standards. In 2007, initial
discussions about how to address the improvement of this aging, failing trunk line called for the
conventional removal and reconstruction of the sewer. This would have required the destruction of the
riparian corridor along the trunk line as well as destroying the extensive landscaping installed by
adjacent property owners over the years since 1905. The cost for this work was estimated at $2.25
million and would have required a lengthy and expensive permitting process involving many
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regulatory governmental agencies. Due to the excessively high construction cost and extremely
negative impact to the riparian corridor and private landscaping, the Engineering Department decided
to search for a less expensive and less destructive alternative to conventional construction methods.
After videotaping and reviewing the trunk line, it was determined that CIPP would be the most
economical and environmentally friendly way to proceed.
Phase one of the project entailed construction of new 8” and 12” sanitary sewer mains through Ashland
Creek Park and across Ashland Creek along with three new sewer manholes. The creek crossing
requires special structural footings for holding and securing the creek crossing pipe in order to handle
storm and high water events. The construction also required the installation of numerous tree
protection and erosion control measures while working within the riparian corridor of Ashland Creek.
The Ashland Creek Trunkline Reconstruction phase two is funded directly by the City as a capital
improvement project. The established budget in the CIP for phase one and two was $458,750. Phase
one of the project final cost came to $217,125 leaving $241,625 to complete the phase two segment.
Related City Policies:
AMC Section 2.50 requires the Council, acting as the contract review board, approve all material and
services contracts in excess of $100,000.
Staff recommends the Council accept the bid and authorize the award of contract to Michels
Corporation in the amount of $213,172 for the Ashland Creek Trunkline Reconstruction phase two.
Reasons for acceptance include:
1. The bid is the lowest of three received.
2. The bid is a valid legal bid containing all necessary information and bond.
3. A rebid of the project would result in additional costs encumbered by the city and possibly
higher bid results.
Move to approve the bid and award of contract to Michels Corporation in the amount of $213,172 for
Ashland Creek Trunkline Reconstruction phase two.
1. Summary of bids
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