Our monthly Idaho Hydrologic Update enters its second year of keeping you informed about Idaho's water resources. Each month, we summarize significant findings from our hydrologic data networks; announce new studies; and let you know how we support our local, state, Federal, and tribal partners with reliable, unbiased science.
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More than two dozen Idaho streamgages offer more than 100 years of water data. Click the Centennial Streamgage badge below to access data from these streamgages.
Starting in 2014, the U.S. Geological Survey in cooperation with the U.S. Department of Energy, drilled and constructed boreholes SGS 142 and USGS 142A for stratigraphic framework analyses and long-term groundwater monitoring of the eastern Snake River Plain aquifer at the Idaho National Laboratory in southeast Idaho. .
In 2009, the Federal Highway Administration published Hydraulic Engineering Circular No. 23 (HEC-23) to provide specific design and implementation guidelines for bridge scour and stream instability countermeasures. However, the effectiveness of countermeasures implemented over the past decade following those guidelines has not been evaluated. In this report and the associated data release, our scientists present the results of their systematic evaluation of bridge scour countermeasures at 14 sites in four states.