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Sample Design: Wimpey Creek (Lemhi Watershed) Habitat Surveys Site Supplement within the Columbia Habitat Monitoring Program (CHaMP) in 2015

The details of this Sample Design, including all the parameters used to generate it, are included below. Sample designs must belong to a Study Plan.


CHaMP is designed as a Columbia River basin-wide habitat status and trends monitoring program built around a single protocol with a programmatic approach to data collection and management (RM&E Workgroup 2010). CHaMP will result in the collection and analysis of systematic habitat status and trends information that will be used to assess basin-wide habitat conditions. When coupled with biological response indicators, this status and trends information will be used to evaluate habitat management strategies. This program will be integrated with ongoing Pacific Northwest Aquatic Monitoring Program (PNAMP) recovery planning efforts and will be part of the collaborative process across Columbia Basin fish management agencies and tribes and other state and federal agencies that are monitoring anadromous salmonids and/or their habitat. The implementation of CHaMP will characterize stream responses to watershed restoration and/or management actions in at least one population within each steelhead and spring Chinook Major Population Group (MPG) which have, or will have, “fish-in” and “fish-out” monitoring (identified in RPA 50.6), thereby meeting the requirements of RPA 56.3, RPA 57, and RPA 3. CHaMP was designed to deliver trends in habitat indicators and requires that monitoring occurs for three cycles of a sampling panel (see section 1.6), at least 9 years.

Lemhi’s primary objective was to estimate habitat condition for the Lemhi subbasin, and estimate the habitat condition in the priority drainages (see strata list). The Lemhi status and trends sampling design consisted of 45 unique sites sampled over three years (the standard CHaMP design) and was supplemented with 72 sites funded by the ISEMP program until 2013.  The Steelhead (Snake River Basin DPS) - Lemhi River and  the Chinook Salmon (Snake River Spring/Summer-run ESU) - Lemhi River were the populations of interest.  The original rationale was to allocate annual sites across the smaller tributaries to get a broad coverage of the diversity of habitat types, and use more rotating panel sites in the larger tributaries.

In 2015,  additional sites were needed to supplement the design on Wimpey Creek due to landowner denials and lack of access to sites.  

4/18/16:  Field Season 2015 wrap up:  Lem-000018 used as RP2 in 2015 and was moved from the Extra panel to Wimpey RP2 in prep for 2016.


Start Year


End Year

Study Plan

CHaMP - Lemhi Watershed Habitat Monitoring Scientific Protocol for Salmonid Habitat Surveys within the Columbia Habitat Monitoring Program (CHaMP) v4.0 v1.0

Data Repositories





Area of Inference


AOI Notes


Sample Sites
These are the unique sites that are participating in this sample design over the time period covered by the design.

Map of Sites


Sampling Schedule
This section describes which sites are scheduled to be sampled in any given year, and (if applicable) the panel and stratum that the sample site belongs to.

Plan Description


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