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Redevelopment Commission authorizes not-to-exceed force account for Marquette Greenway pipeline crossing
Summary
The commission approved a not-to-exceed force-account authorization to allow work on a shallow pipeline crossing on the Marquette Greenway while final quantities are confirmed; staff said lightweight fill will be used instead of an expensive boardwalk or airbridge, and a formal change order is expected at the next meeting.
The Redevelopment Commission voted to authorize a not-to-exceed force-account for a pipeline crossing on the Marquette Greenway so contractors can proceed while final change-order quantities are determined.
Michael, a redevelopment staff member, said the trail has about 3,200 feet of stone down and that paving will not start until the change-order work is settled. He told the commission the crossing requires additional cover over a shallow pipeline and that the preferred solution is a lightweight aggregate that will allow the trail to be built and paved without the far higher cost of a boardwalk or permanent airbridge.
Staff described the approach as a force account: the commission approved a not-to-exceed amount (recorded in meeting materials as $92,070) so work can begin and a formal change order with final quantities can be presented at the next meeting. Staff said contractor sequencing and use of a geogrid and lightweight fill should roughly halve the original estimate once final quantities are known.
A commissioner asked whether BP or other parties might contribute and whether the pipeline met current code depths. Staff replied the pipeline likely dates to a 1940s easement and that federal/industry standards at the time of installation may differ from present requirements; staff also said the project remains covered by the current trails grant, and no BP contribution was committed.
The commission approved the authorization by voice vote. Staff said the actual change order will return to the commission after the contractor completes the work and the final cost is known.
