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Wall Road Landslide Repair Project - RDS26-38

Active

State & Local

Contract Overview

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

AI Contract Overview

A landslide measuring approximately 88 feet in length occurred along Wall Road in Napa County during the 2025-2026 winter storm season due to intense rainfall and soil saturation, with a secondary damage site farther north also included in the repair scope. The proposed solution involves constructing a concrete retaining wall in the affected area, with cast-in-drilled hole piles spaced six feet apart and wall heights ranging from four to eight feet. The project requires filling and repaving the roadway to restore the original asphalt surface and pre-slide drainage patterns. While the repair work is confined within the existing road boundaries, no changes to the road’s alignment or visual and audible landscape characteristics are planned, preserving its historic character. Vegetation impacts are limited, with no trees to be removed, and the disturbed areas will be restored through hydroseeding with a native grass mixture. Environmental protections are a priority, including implementation of best management practices and erosion control measures to safeguard special-status species and cultural resources in the vicinity.

General Info

Landslide repair with concrete retaining wall, drainage restoration, no alignment changes, native hydroseeding, and environmental safeguards.

Agency

California → Napa County

NAICS

237310 - Highway, Street, and Bridge ConstructionView NAICS

Place of Performance

Wall Road and Dry Creek Road, Napa, CA, 94558

Set-Aside

NONE

Documents

(1)

Wall Road Landslide Repair Project RDS26-38 Notice of Exemption

PDF•notice-of-exemption

AI Contract Breakdown

Uniform Contract Format

Timeline

PostedJul 10

forecast

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Organization & Contact Information

AgencyCalifornia → Napa County

Contacts2 people available

OfficeN/A

Organization / Agency

California → Napa County

Office AddressN/A

Contacts

Dana Eleanor MorrisonSupervising Planner - Conservation

contact@example.gov

+1 (555) 000-0000

Liang SuJunior Engineer

contact@example.gov

+1 (555) 000-0000

Full Description

Damage occurred at 550 Wall Rd as a result of storm events in Napa County during the 2025-2026 winter season. Intense rainfall saturated the roadway resulting in a landslide approximately 88 feet in length. A secondary, smaller location further north, was damaged previously and will be included in the repair. The proposed repair for the 550 Wall Rd slides include construction of a concrete retaining wall where significant settlement and damage occurred. The cast-in-drilled hole piles are spaced at 6 feet on center. Filling and repaving the roadway will be required to restore the asphalt surface and pre-slide drainage patterns. The wall height varies from 4-8 feet in height. Although repair work will be conducted within the boundaries of Wall Road, the Project does not propose to change the alignment or create visual or audible changes to the landscape, maintaining the integrity of the road and its ability to convey its potential historic significance. While some vegetation will be impacted by the Project, no trees will be removed. After completion of work the disturbed area will be hydro seeded with native mix of grasses. Best Management Practices and erosion control will be implemented, as well as environmental commitments to protect environmental resources, including any potential special-status species or cultural resources that may occur in the project area.