TO: Napa County Flood Control and Water Conservation District
FROM: Richard Thomasser - District Manager
REPORT BY: Jeremy Sarrow - Watershed and Flood Control Operations Manager
SUBJECT: Bale Slough - Bear Creek Restoration Project - Approval of Plans and Specifications and Authorization to Advertise
RECOMMENDATION
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District Manager requests the following actions related to the Bale Slough - Bear Creek Restoration Project:
1) Approval of plans and specifications; and
2) Authorization to advertise for sealed bids and opening of the bids at a time, date and location to be published by the District Manager pursuant to Section 20150.8 of the Public Contract Code.
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EXECUTIVE SUMMARY
The final designs of the Bale Slough - Bear Creek Restoration Project, Groups A-C, is now complete. This Project is related to the Rutherford and Oakville to Oak Knoll Restoration Projects within the Napa River watershed and will continue restoration activities to reduce sediment loads and enhance biological complexity throughout the river channel. Construction of the Group A restoration sites has been funded through state grants from the Wildlife Conservation Board and State Water Resources Control Board. With funding now in place, the Project is ready to go out to bid. Construction of Group A is anticipated to be completed in 2023 with completion of Groups B and C dependent on receiving additional grant funds.
FISCAL IMPACT
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Is there a Fiscal Impact? |
Yes |
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Is it currently budgeted? |
Yes |
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Where is it budgeted? |
Fund 8000 Org 8000503 |
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Is it Mandatory or Discretionary? |
Discretionary |
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Discretionary Justification: |
Construction of the Project is consistent with direction from the Board to accomplish watershed restoration projects of this type. |
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Is the general fund affected? |
No |
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Future fiscal impact: |
The project is anticipated to be complete in 2023. Following construction, long term maintenance is being funded by the OVOK Community Facilities District that was created by the Flood Control District. |
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Consequences if not approved: |
If this item is not approved, potential loss of grant monies, landowner involvement, and continued degradation of the Napa River may occur. |
ENVIRONMENTAL IMPACT
ENVIRONMENTAL DETERMINATION: The project is the subject of a Mitigated Negative Declaration (SCH No. 20211090589), which was adopted by the Napa County Flood Control District on November 15, 2021. According to the Mitigated Negative Declaration, the proposed project would have, if mitigation measures are not included, potentially significant environmental impacts in the following areas: Aesthetics, Biological Resources, Transportation/Traffic, Cultural Resources, and Air Quality. This project site is not on any of the lists of hazardous waste sites enumerated under Government code section 65962.5.
BACKGROUND AND DISCUSSION
The Bale Slough - Bear Creek Restoration Project (Project) is the continuation of restoration efforts within the Napa River watershed that began with the Rutherford Reach Restoration Project and the recently completed Oakville to Oak Knoll Restoration Project. The 1.6 mile Project reach has been divided into three construction groups (A-C), encompassing fourteen (14) distinct restoration sites. The District has completed the environmental review of the Project as required by CEQA, and the Mitigated Negative Declaration was adopted by the District. Plans and Specifications for the Project have been completed.
Below is the engineers estimate for construction costs for the entire Project and the attached map shows the location of the restoration Groups:
Group A - $2,331,890 (The subject of this agenda item)
Group A consists of restoration sites 1-5 which is the initial construction group that currently has funding in place. Restoration will involve grading the creek channel to create diversity and to reconnect the waterway to its historic floodplain. The planned habitat structures and erosion protection will allow for a healthier ecosystem without creating additional risk to landowners in the area; work will be completed by the end of 2023.
Group B - $1,641,270
Group B consists of restoration sites 6-11which is unfunded. Restoration actions will be similar to Group A involving grading the creek channel to create habitat diversity and to reconnect the waterway to its historic floodplain.
Group C - $2,609,910
Group C consists of restoration sites 12-14 which is unfunded. Restoration actions will be similar to Group A and B involving grading the creek channel to increase habitat diversity and to reconnect the waterway to the channels historic floodplain with the addition of the expansion of a large wetland feature just upstream Highway 29.
Staff is requesting 1) Approval of plans and specifications for the Project; and 2) Authorization to advertise for sealed bids for Group A restoration Sites and opening of the bids at a time, date and location to be published by the District Manager pursuant to Section 20150.8 of the Public Contract Code.