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Fay Creek Culvert Debris Removal

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State & Local

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

AI Contract Overview

In early 2023, a severe storm caused the failure of a 15-foot-diameter culvert beneath Salmon Creek Road, leading to the collapse of the roadway and the deposition of debris—including the damaged culvert, concrete, asphalt, and woody material—into Fay Creek. This obstruction disrupted surface-water flow and blocked critical fish passage. Sonoma County responded by installing a temporary one-lane Bailey bridge to maintain road access, but the debris remains in the creek, impairing aquatic connectivity. To address this, Sonoma County plans to remove approximately 50 feet of the failed culvert and all associated debris from a 50- by 100-foot section of the creek, potentially including an unstable concrete abutment from a prior bridge structure. The removal effort will occur during the dry season using hand tools and heavy equipment staged on Salmon Creek Road, with a temporary access route constructed adjacent to the Bailey bridge to allow an excavator to reach the work zone without entering the wetted channel. No trees will be removed, and minimal vegetation will be cleared only as absolutely necessary for safe operations. The California Department of Fish and Wildlife will coordinate dewatering and fish relocation to protect aquatic life. After debris removal, the site will be graded to match surrounding topography and stabilized with native seed, biodegradable erosion-control fabric, and fiber rolls. All removed materials will be hauled off-site for recycling or proper disposal, and strict erosion and spill prevention controls will be enforced throughout the work to ensure environmental protection and full restoration of natural stream function and aquatic passage.

General Info

Remove 50 feet of culvert and debris from Fay Creek to restore fish passage and stream function during dry season.

Agency

California → Sonoma County

NAICS

237990 - Other Heavy and Civil Engineering ConstructionView NAICS

Place of Performance

Salmon Creek Road crossing of Fay Creek near Fitzpatrick Lane, CA

Set-Aside

NONE

Documents

(1)

NOE Fay Debris to be remediated_remediated

PDF

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Timeline

PostedAug 7

forecast

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Organization & Contact Information

AgencyCalifornia → Sonoma County

Contacts1 person available

OfficeN/A

Organization / Agency

California → Sonoma County

Office AddressN/A

Contacts

Tiffany SederEngineering Technician IV

contact@example.gov

+1 (555) 000-0000

Full Description

In January 2023, a major storm caused failure of an approximately 15-foot-diameter culvert carrying Fay Creek beneath Salmon Creek Road. The culvert failure resulted in collapse of the roadway and deposited portions of the failed culvert, roadway material and associated debris within the channel. In response to the emergency, Sonoma County installed a temporary one-lane Bailey bridge over Fay Creek to restore the roadway. Portions of the failed culvert and associated roadway debris remain in the channel and currently obstruct low-flow surface-water continuity and upstream and downstream passage by fish and other aquatic organisms. Sonoma County Public Infrastructure proposes to remove the failed culvert and associated debris from an approximately 50-foot-wide by 100-foot-long area of Fay Creek. Debris to be removed includes the 50' long culvert, concrete sandbags, asphalt, and other woody debris accumulating in this area obstructing fish passage. A concrete abutment from a previous bridge at this location may also be removed if unstable during debris removal. Debris will be removed by hand and equipment. Dewatering and fish relocation will be planned and performed by CDFW. Equipment staging will occur on Salmon Creek Road. Temporary equipment access will be constructed immediately adjacent to the temporary Bailey bridge to allow an excavator to enter the work area. Construction of the temporary access may require limited vegetation removal and grading of the creek bank and will be confined to the minimum area necessary for safe equipment access and operation. Heavy equipment will not enter the wetted channel, and no trees will be removed. Upon completion of debris removal, the temporary access area will be regarded to match adjacent topography, and will be stabilized using native seed, biodegradable erosion-control fabric, fiber rolls, or similar measures, as appropriate. Removed material will be transported to an appropriate off-site recycling or disposal facility. Work will occur during the dry season, and erosion-control and spill-prevention measures will be implemented. The project will restore fish passage, aquatic connectivity, and natural stream-channel function in Fay Creek.