Title
Approval for Additional Spending Authority for the 18th Avenue Improvements Project
Issue:
Early in construction, the City’s Contractor, Active Construction, Inc. (ACI) discovered a technical issue in the field. The cost to address this issue will use most of the construction contingency. Staff is requesting that Council authorize additional construction contingency since the project is in an early phase.
Committee Recommendation:
Not referred to a committee.
City Manager’s Recommendation:
Move to authorize the City Manager to approve contract changes up to 15% of the original contract amount for the 18th Avenue Improvements project.
Staff Contact:
Jim Rioux, Project Manager, Public Works Technical Service, 360.753.8484
Presenter(s):
None - consent calendar item.
Background and Analysis:
During the second week of construction, ACI began excavating two storm ponds. The contract plans and specifications directed ACI to use the material they removed from the storm ponds and place it under the new sidewalks. This is a common practice to reduce construction cost.
During excavation, the Project Engineer discovered that the soil in this area could not be used under the sidewalks due to problems with compaction. This was a surprise because soil near this same area was acceptable for a similar project. Staff directed ACI to remove the unsuitable soils and replace them with gravel that met the contract requirements. This resulted in a large change order, early on in the project construction.
The original contract contingency was $252,040 (10 percent of the construction contract amount). This first change order totaling $218,000 leaves approximately $34,000 remaining in the award contingency. Once this remaining award contingency is used, each subsequent change order would require Council approval, possibly resulting in contract delays and extra costs. Given the amount of work left on this project, staff believes there is not enough spending authority to ad...
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