Wyoming-Montana Water Science Center

Floods and Droughts

Filter Total Items: 10
Date published: September 5, 2019
Status: Active

Peak-Flow Frequency Analysis for Selected Montana Streamgages

The Montana Department of Resources and Conservation requires peak-flow information for Federal Emergency Management Agency (FEMA) floodplain mapping for various locations across Montana. Accordingly, the USGS WY-MT Water Science Center has published peak-flow frequencies for selected streamgages in the Beaverhead River, Clark Fork, Ruby, Jefferson and Madison River Basins, and for selected...

Date published: April 2, 2019
Status: Active

Augusta 2018 Flood Measurements and Flood Frequency Updates along the Rocky Mountain Front

The USGS WY-MT Water Science Center provided discharge measurements and high water mark (HWM) flagging for the June 2018 flooding along Elk Creek in Augusta, Montana.

Date published: September 26, 2018
Status: Active

EcoFlows: Understanding Streamflow Dynamics in Small Mountain Streams

The WY-MT WSC is collaborating with the Northern Rocky Mountain Science Center to understand the dynamics of streamflows in small, mountain streams during the course of the year, and to describe the amount of variability associated with those measurments. These findings will assist fisheries biologists who are researching...

Date published: May 15, 2018
Status: Active

StreamStats in Montana and Wyoming

StreamStats is a Web-based geographic information system application that provides users with access to basin and streamflow characteristics for gaged and ungaged streams.

Date published: April 29, 2018
Status: Active

Smith River Watershed Investigations

The Smith River watershed is an important recreational and agricultural area in Meagher and Cascade counties in west-central Montana. Thousands of visitors travel to the area annually to float and fish the Smith River. Additionally, most of the water used to irrigate 36,000 acres of the upper Smith River watershed is withdrawn from the Smith River or its tributaries. During a...

Date published: March 28, 2018
Status: Active

Drought Conditions in Wyoming and Montana

The USGS monitors drought conditions at more than 300 streamgages across Wyoming and Montana. Low-flow conditions are expressed as percentiles comparing current (within the past few hours) instantaneous flow to historical daily mean flow for all days of the year.

Contacts: Kirk A Miller
Date published: March 27, 2018
Status: Archived

Streamflow Statistics for Unregulated and Regulated Conditions for Selected Locations on the Yellowstone, Tongue, Powder, and Bighorn Rivers, Montana

Major floods in 1996-1997 on the Yellowstone River intensified public debate over the effects of human activities on the Yellowstone River. The Yellowstone River Conservation District Council partnered with the U.S. Army Corps of Engineers to conduct a cumulative-effects study on the Yellowstone. For that study, the USGS calculated streamflow statistics for unregulated (no development) and...

Date published: March 26, 2018
Status: Active

Flooding and High-Flow Conditions in Wyoming and Montana

The USGS monitors flood and high-flow conditions at more than 300 streamgages across Montana and Wyoming.  Water level and flow information are used by the National Weather Service (NWS) to make accurate flood forecasts. High-flow conditions are expressed as percentiles comparing current (within the past few hours) instantaneous flow to historical daily mean flow for ...

Contacts: Kirk A Miller
Date published: March 21, 2018
Status: Active

Montana Crest-Stage Gage Network

The purpose of the crest-stage gage network is to inventory and monitor peak discharges throughout the state of Montana, with special emphasis on streams that may damage transportation infrastructure. Recorded data documenting peak streamflow at various sites within the state will be used by the Montana Department of Transportation to support assessments of culvert size, bridge construction,...

Date published: January 23, 2018
Status: Active

Bridge Scour in Montana

Bridge scour is the erosion of streambed material away from pier foundations and abutments and is the leading cause of bridge failure in the United States (Richardson and Davis, 2001). Since the early 1990s, the U.S. Geological Survey (USGS) and the Montana Department of Transportation (MDT) have had a cooperative bridge scour project in Montana.

Contacts: Steve Holnbeck