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Quincy, CA 95971
(530) 283-3739
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The Sierra Hydrology Monitoring Program 

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The Program 

The Sierra Meadows Hydrology Monitoring (SMHM) Program is a scientific project that addresses the current paucity of data, particularly pre-project, quantifying the effects of restoration in Sierra Nevada meadows. Several state and federal agencies have acknowledged the degraded condition of Sierra meadows and have set ambitious goals for restoration with the intent to effectively monitor, quantify and validate data at a large Sierra-wide scale. This replicable, cost-effective monitoring program provides a robust monitoring protocol that documents pre- and post-restoration hydrologic data for Sierra Nevada meadows at short-, medium- and long-term timescales. More extensive data helps quantify and contrast hydrologic function of degraded and restored meadows to ultimately document the effectiveness of restoration efforts and the overall health of Sierra meadows.​​  The project is funded by the California Wildlife Conservation Board's Stream Flow Enhancement Program.

The Meadows 

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​Eight Sierra Nevada meadows, representing a range of watershed characteristics and restoration status, were chosen for this project. Five of the sites represent degraded meadows that are planned for restoration in the next 2 – 3 years.  Degraded condition of the meadows is evidenced by the presence of an incised channel (4 – 10 feet deep) that has lowered the water table, resulting in a conversion of wet or moist vegetation to dry vegetation communities, increased peak flows and bank erosion.  The data collected for the un-restored sites will allow for pre-project characterization of stream baseline flows, temperatures, vegetation communities, sediment transport and channel morphology that can be compared to post-restoration conditions. Three of the eight sites will provide new post-project data on already restored stream reaches, as well as baseline data for future planned projects in the respective watersheds.

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Station vicinity map
Dry Meadow – Bull Run Creek
Dry Meadow is a 55 acre meadow in the headwaters of Bull Run Creek, a tributary to the North Fork Kern River. The Western Divide Ranger District (WDRD), Sequoia National Forest (SQF) has categorized Dry Meadow as one of the most severely degraded meadows on the Forest.  Conceptual design work has been completed for the site. Funds for project implementation are currently being sought
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More on Dry Meadow

Big Meadows – Big Meadows Creek
​The Big Meadows Restoration Project is located in the Sequoia National Forest, Hume Lake Ranger District approximately 56 miles east of Fresno, CA at a mean elevation of 7,600 ft.  Restoration was completed in 2007 with collaborative efforts made by the Fresno Fly Fishers for Conservation, California State University Fresno, and the Sequoia National Forest. 
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More on Big Meadows

Mattley Meadow – Mattley Creek
​Mattley Meadow is an un-restored meadow which includes both public and private lands in a remote area near the southwest boundary of the Mokelumne Wilderness on the Calaveras Ranger District (CRD), Stanislaus National Forest.  The meadow is at the headwaters of Mattley Creek, a tributary to the North Fork of the Mokelumne River.  Mattley Meadow was identified and prioritized as a restoration project by the CRD collaboratively with the Amador-Calaveras Consensus Group (ACCG) in the ACCG Cornerstone Project.
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More on Mattley Meadow

Foster Meadow – Middle Fork Cosumnes River
​​Foster Meadow is an 27 acre un-restored meadow in the headwaters of the Middle Fork Cosumnes River at 6,800 ft. Foster Meadow was identified and prioritized as a restoration project by the Amador Ranger District (ARD) of the El Dorado National Forest (ENF) collaboratively with the Amador Calaveras Consensus Group (ACCG).  Survey, assessment, and a conceptual restoration design have been completed and grant funding for project implementation has been recently awarded to Plumas Corporation. 
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More on Foster Meadow

Sardine Valley – Davies Creek
​Sardine Valley is a large privately-owned meadow bisected by Davies Creek and surrounded by public forest lands.  The U.S. Forest Service – Tahoe National Forest (TNF) and Truckee River Watershed Council (TRWC) have each included the Davies Creek watershed in their respective watershed management strategies, identifying it as a targeted area for restoration of riparian, aquatic, and wetland habitat with the goal of reducing non-point source sedimentation. This project continues the pre-project data collection started by TNF in 2015.  
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More on Sardine Valley

Notson Bridge – Red Clover Creek
​This continuous recording station (CRS) on Red Clover Creek at Notson Bridge was established in October 1999, and has been maintained continuously since installation.  Red Clover Creek is tributary to Indian Creek, in the East Branch North Fork Feather River Watershed.  The Red Clover Creek watershed has been the focus of meadow and channel restoration activities since 1985.  Approximately three miles of channel were restored prior to 1996, with more intensive restoration activity occurring between 2006 and 2013. 
More on Red Clover Creek

Doyle Crossing – Last Chance Creek
​ The Last Chance Creek watershed has been the focus of meadow and channel restoration activities since 1996, with the majority of restoration occurring between 2002 and 2007.  In total, approximately 11 miles of channel have been reconnected to the floodplain above the Doyle Crossing station.  A CRS unit was installed in 1999 and has monitored stream flow and water temperature monthly since.  
More on Last Chance Creek

​Goodrich Meadow – Goodrich Creek
Upper Goodrich Meadow, owned by Shasta Forest Timberlands LLC, was restored in the summer of 2016 using a channel fill technique.  Groundwater wells were installed pre-project in 2014 and groundwater level data has been collected continuously since.  Goodrich Creek is a major tributary to Mountain Meadows Reservoir (PG&E) and flows through several un-restored  meadow complexes prior to reaching the reservoir.  ​
More on Goodrich Meadow/Crk

The Protocol

​The methodology of this project was developed based on Plumas Corporation’s extensive experience with long-term hydrologic monitoring in the Upper Feather River Watershed and involvement in developing the Sierra Meadows Strategy proposed Sierra Meadows –Wetland and Riparian Assessment Monitoring Plan (SM-WRAMP), a framework of consistent monitoring protocols and guidelines to assess pre- and post-restoration conditions specific to mountain meadows.
To maintain consistency in data collection, work was completed in each of the meadows using the same procedures.  ​

Methodology/Project Design Approach Overview

Geologic Characterization
  • Seismic Refraction Surveys for calculating depth to bedrock
  • Borehole Augering and Piezometer Installation
  •  Surface Elevation Control
  • Erosion- Sedimentation recordings through channel morphology data
Hydrology -Continuous Monthly Measurements
  • Stream Monitoring Stations - Site Determination & Installation ​​
  • Flow Measurements
  • Oxygen Isotope Analysis and Surface / Groundwater Sample Collection
  • Groundwater Wells Measurements for detecting groundwater elevation
  • Stream electrical conductivity readings ​
California Rapid Assessment Method (CRAM)
CRAM utilizes visible indicators of physical and/or biological structure of wetlands that can be ranked along a gradient of stress.  The method employs a systematic approach to evaluate wetland ecological condition, and scores sites relative to the best reference wetlands in the state. The method requires a team of 2-3 trained practitioners to conduct an assessment in a defined portion of a wetland called an Assessment Area (AA). Three to four Assessment Areas were established within each of the six meadows and were used to evaluate the health of meadow ecosystem as a baseline assessment prior to restoration.
The CRAM team assesses visual aspects of condition, organized into four attributes:
  1. Buffer and Landscape
  2. Context, Hydrology
  3. Physical Structure
  4.  Biotic Structure​ ​
***An in depth project methodology can be accessed through the Sierra Hydrology Monitoring Report link below.***

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Sierra Meadow Hydrology Monitoring Annual Reports
sierra_mdw_hydro_monitoring_2018_annual_report.pdf
File Size: 33480 kb
File Type: pdf
Download File

sierra_mdw_hydro_monitoring_2017_annual_report.pdf
File Size: 20173 kb
File Type: pdf
Download File


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