Mill Creek Flow Measurement Improvements

Client: The Nature Conservancy

Funder: The Nature Conservancy

Location: Tehama County, California

Date: 2020 - present

The Nature Conservancy (TNC) holds several water rights on Mill Creek that have historically been monitored by the Los Molinos Mutual Water Company (LMMWC). TNC is considering more complex management options for these rights, such as downstream leasing or instream dedications, that would require additional monitoring downstream of LMMWC’s diversions.

Davids Engineering was contracted by TNC to evaluate the feasibility of a monitoring station at Ward Dam, and to provide recommendations for establishing a permanent flow measurement site that would enable accurate, reliable data logging and real-time data access. Davids Engineering is designing site-specific stage-discharge relationships at Ward Dam using temporary water level sensors and flow gages to capture a wide range of flow measurements. Recognizing that the long-term success of this monitoring site requires stable and predictable site conditions, Davids Engineering is also carefully considering the specific physical, geomorphic, and hydraulic characteristics of the site.

As a result of this work, TNC will be able to accurately and reliably correlate water level data to the flow rate passing the measurement site using calibrated water level-flow rate relationships. Ultimately, these data will allow TNC greater flexibility in managing its water rights to the greatest benefit of all users.

All Projects

Tehama County Groundwater Sustainability Plan Implementation 

Colusa Subbasin Groundwater Sustainability Plan Revisions

Madera Subbasin Groundwater Sustainability Plan Revisions 

Chowchilla Subbasin Groundwater Sustainability Plan Revisions

Moore Siphon Replacement Project

Dos Rios Ranch SB88 Compliance and Crop Planning Analysis

Hart Ranch On-Farm Irrigation Efficiency Improvements

Orland Project Distribution System Modernization

Water Management Plan Compliance Mapping

Agricultural Development Feasibility Assessment

Analysis of Effects of Water Management on Evapotranspiration from Managed Wetlands

Garden Highway Mutual Water Company Water Control Projects

Richvale Irrigation District Phase I Infrastructure Modernization

Joint Water Districts Board SCADA

Sutter Mutual Water Company Modernization Support

Shasta Valley Groundwater Monitoring

Time Series Evapotranspiration and Applied Water Estimates from Remote Sensing

Customer Delivery Measurement Data Collection and Accounting (RemoteTracker Implementation)

SGMA Technical Support Services and Prop 1 Stressed Basin Grant Project

Efficiency Conservation Definite Plan and Conservation Program

Boundary Outflow Measurements

Oakdale Irrigation District Agricultural Water Management Plan

Yuba Water Agency Agricultural Water Managment Plan

Feather River Agricultural Water Management Plan (FRRAWMP)

Colusa Subbasin Groundwater Sustainability Plan Development

Madera and Chowchilla Subbasins Groundwater Sustainability Plans

2022 Verification Project for Madera County GSAs

Little Shasta River Efficiency Study

Mill Creek Flow Measurement Improvements

Kettle Spring Improvement Project

Antelope Creek Fish Passage Improvement Project

Conservation Planning and Operations Decision Support