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Alhambra Valley Road Erosion Repair - 3 Sites Project

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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

The Alhambra Valley Road Erosion Repair - 3 Sites Project, identified by WO#6270 and CP#25-29, is a forecast infrastructure project managed by the Contra Costa County Public Works Department and the Department of Conservation and Development. The primary objective is to repair three embankment failures and reconstruct the roadway to restore two-way traffic on Alhambra Valley Road in Martinez, California, following damage from 2023 winter storm events. The scope of work includes the construction of soldier pile retaining walls, roadway reconstruction, and pavement repairs at all three sites. Additionally, the project involves replacing an 18-inch HDPE storm drain culvert and bank armoring at the western-most site and installing a new inlet and culvert at the eastern-most site. General construction activities will encompass clearing and grubbing, excavation, rock slope protection, and guardrail installation. The project is anticipated to begin in 2027 with an estimated duration of 70 working days, with no night or Sunday work planned. Environmental compliance is addressed through a California Environmental Quality Act Notice of Exemption, citing negligible expansion of use. Required operational measures include the implementation of best management practices such as silt fencing, straw wattles, and storm drain inlet protection, with all regulatory permits to be secured prior to construction. Potential ancillary requirements may include utility relocations, real estate transactions, and vegetation trimming. The project is categorized under NAICS code 237310.

General Info

Contra Costa County will repair three Alhambra Valley Road erosion sites starting in 2027.

Agency

California → Contra Costa County

NAICS

237310 - Highway, Street, and Bridge ConstructionView NAICS

Place of Performance

Martinez, CA, 94553

Set-Aside

NONE

Documents

(1)

Alhambra Valley Road Erosion Repair - 3 Sites Project Notice of Exemption

PDF•notice-of-exemption

AI Contract Breakdown

Uniform Contract Format

Timeline

PostedJan 16

forecast

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Organization & Contact Information

AgencyCalifornia → Contra Costa County

Contacts2 people available

OfficeN/A

Organization / Agency

California → Contra Costa County

Office AddressN/A

Contacts

Sandeep KajlaProject Manager

contact@example.gov

+1 (555) 000-0000

Syd SotoodehSenior Planner

contact@example.gov

+1 (555) 000-0000

Full Description

The purpose of this project is to repair three embankment failures and reconstruct the roadway to restore twoway traffic to a stretch of Alhambra Valley Road that was damaged during the 2023 winter storm events. The road is currently limited to one lane for travel at two of the embankment failure locations. The road embankments will be repaired and stabilized by constructing soldier pile retaining walls and reconstructing the collapsed roadway at all three sites. The existing road pavement will also be repaired the length of the erosion within the project area at all three sites. In addition, an existing 18-inch diameter HOPE storm drain culvert crossing Alhambra Valley Road and the bank armoring at the culvert's outfall will be replaced and repaired at the western-most site and an inlet and culvert will be installed at the eastern-most site. The repair work at all three sites will include clearing and grubbing on the embankment, excavation, construction of soldier pile retaining walls, embankment repair and stabilization, installation of rock slope protection and guardrail, and roadway reconstruction. Real Estate transactions, utility relocations, temporary traffic control, and tree and vegetation trimming and removal may be necessary. The project is anticipated to be constructed in 2027 and take approximately 70 working days to complete. No night or Sunday work is anticipated. Applicable best management practices will be implemented such as storm drain inlet protection, silt fencing, and straw wattles. Regulatory permits will be obtained before construction.