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Caltrans Encroachment Permit 02-25-N-MC-0513 for the Yurok Tribes Stream Gage Installation Project at the Weaver Creek Bridge

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State & Local

Contract Overview

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AI Contract Overview

The Yurok Tribe is implementing a project to install and operate a surface water gage at the Weaver Creek Bridge on State Route 299 in Trinity County at post mile 56.53. Funded by the California Department of Water Resources, the project aims to monitor water flow and temperature downstream of key tribal restoration projects. The installation involves a comprehensive system including sensors, staff gages, data loggers, telemetry systems, solar panels, and weatherproof housing. Specific bridge modifications include the installation of two staff plates on bridge piers and a water level sensor on the underside of the bridge, with all hardware installed according to industry standards and manufacturer specifications. The project is authorized under Caltrans Encroachment Permit 02-25-N-MC-0513 and has been determined categorically exempt under CEQA Section 15306 as it involves basic information collection. Construction is expected to take three to five days and must be completed by the end of September 2026 to meet grant deadlines. The operational phase includes calibration, flow measurements, and maintenance to ensure data is successfully transmitted to the CDEC online data portal, with data collection scheduled to continue through October 2031. The primary agency contact for the project is Branch Chief David DeMar of Caltrans District 2 in Redding.

General Info

Yurok Tribe will install and operate a Weaver Creek water gage through 2031.

Agency

California → Caltrans, District 2 - Redding

NAICS

237310 - Highway, Street, and Bridge Construction

Place of Performance

Set-Aside

NONE

Documents

No documents available

Documents will appear here when they are available.

AI Contract Breakdown

Uniform Contract Format

Timeline

PostedAug 17

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Organization & Contact Information

AgencyCalifornia → Caltrans, District 2 - Redding

Contacts2 people available

OfficeN/A

Organization / Agency

California → Caltrans, District 2 - Redding

Office AddressN/A

Contacts

David DeMarBranch Chief

contact@example.gov

+1 (555) 000-0000

Sandra Perez-RodriguezNot Specified

contact@example.gov

+1 (555) 000-0000

Full Description

The Yurok Tribe has secured funding from the California Department of Water Resources (DWR) for the installation and operation of a surface water gage within the California Department of Transportations (Caltrans) right of way along State Route 299 in Trinity County at post mile 56.53 (Weaver Creek bridge) to monitor flow and temperature in Weaver Creek. The gage would consist of sensors, staff gage, data loggers, power supply, telemetry systems, solar panel accessories, pole mount, antenna, and weatherproof housing as well as hardware needed for proper and secure installation per manufacturer specifications and industry standards. This includes conduit and flex conduit. Components mounted to the Weaver Creek bridge would include two staff plates, a water level sensor, and conduit/flex conduit. Staff plates would be installed on two bridge piers. A water level sensor would be installed on the underside of the bridge. Conduit/flex conduit would be attached to the exterior of the bridge and would connect the water level sensor to a solar panel, which would be mounted away from the bridge to optimize solar exposure. Operation includes calibration, initial and subsequent flow measurements, other equipment testing, and maintenance needed to successfully establish and operate a gage that is able to transmit data to the CDEC online data portal. Construction is expected to take 3 to 5 days. The gage would be installed by the end of September 2026 in order to meet the DWR grant deadline that funds construction. The data collection end date of October 2031 reflects the ongoing annual flow measurements over about a 5-year period. The site location, a Caltrans bridge over Weaver Creek on State Route 299 in Trinity County at post mile 56.53, was selected by the Yurok Tribe because it enables monitoring downstream of a key tribal restoration project and several other restoration projects led by tribal partners. It also has easy access from Union Hill Road. Caltrans will issue an encroachment permit (02-25-N-MC-0513) for the proposed work.