Title
Approval of Change Order for Log Cabin Road Reservoir Project
Recommended Action
Committee Recommendation:
Not referred to a committee.
City Manager Recommendation:
Move to approve Change Order No. 2 in the amount of $89,964 for the Log Cabin Road Reservoir Project and authorize the City Manager to execute the Change Order.
Report
Issue:
Whether to approve Change Order No. 2 for the Log Cabin Road Reservoir Project.
Staff Contact:
Tim Richardson, P.E., Project Manager, Public Works Engineering, 360.753.8749
Presenter(s):
None - Consent Calendar Item.
Background and Analysis:
The construction for the Log Cabin Road Reservoir began in April. After record winter and spring rains, the soil along the access road/pedestrian pathway - about 800 feet of the 2,200 total length - became saturated. As a result, construction equipment could not reach the reservoir site. The City had three options:
1. Wait for the soil to dry out.
This would have delayed construction by at least two months, and there was no guarantee the soils would dry out enough to proceed. The contractor could have filed a claim for delay of the project.
2. Move the access road/pedestrian pathway to another location.
This would have resulted in a major design change as well as delays to construction.
3. Remove the saturated soil and add geotextile fabric and rock.
This would create a firm base for construction equipment and keep the access road/pedestrian pathway on the planned alignment.
The City chose Option 3, to remove the saturated soil and install geotextile fabric and rock. This required a change order, adding cost and working days to the contract.
The Change Order pays for extra effort needed to excavate soft and saturated soil along the access road/pedestrian pathway. The contractor placed geotextile fabric and quarry spalls to provide a solid base for the road. The exact quantity could not be determined prior to work starting, so dirt removal, placement of geotextile fabric and quarry spalls were tracked on a time and materials basis.
The City’s construction inspector observed work done and signed off daily. Work under this change order also pays for additional work to lower an existing 4-inch sanitary sewer main in order to achieve the required 18-inch separation between the new 16-inch water main and the sewer line.
Council approval is required once the cumulative cost of change orders crosses the threshold of $300,000.
Change Order No. 1, $287,525.28, has already been paid to the contractor. Approving Change Order No. 2 will make the total cumulative change order cost to date $377,489.28. This also will complete payment to the contractor for work performed at the City’s request.
Staff does not foresee additional large change orders to complete the project.
The reservoir construction will be completed in July 2018.
Neighborhood/Community Interests:
Completing the work in a timely fashion helps keep the overall construction on schedule.
Options:
1. Approve Change Order No. 2 in the amount of $89,964 and authorize the City Manager to execute Change Order No 2.
The project proceeds as planned.
2. Do not approve the Change Order No. 2 and request staff to deny paying for the Change Order.
This option will put the City at risk for claims, since we directed that the work be done.
Financial Impact:
The project is in the City's Capital Facilities Plan with funding by the Drinking Water Utility. The U.S. Environmental Protection Agency (EPA) provides financing through the Washington Drinking Water State Revolving Fund (DWSRF) program.
The cumulative change order of $377,489.28 is 5.2% of the construction contract of $7,298,722.88. This is within the required 10% construction contingency. There are sufficient funds in the budget to complete this project.
Overall project costs:
|
Total Low Bid: |
$ |
7,298,722.88 |
|
Contingency to Award (10%): |
$ |
729,872.29 |
|
|
|
|
|
Total Estimated Construction Cost: |
$ |
7,668,708.51 |
|
Total Change Orders to Date |
$ |
377,489.28 |
|
Remaining Contingency: |
$ |
352,383.01 |
Attachments:
None