Hydrologic and Hydraulic Impact of Highways Systems on Streams

Focus Area

Water Quality/Wetlands

Subcommittee

Natural Resources

Status

Archived

Cost

$250,000-$499,000

Timeframe

2-3 years

Research Idea Scope

Document hydrologic and hydraulic impacts of existing highway systems on nearby streams.  Using 10 impacted streams in geographically diverse ecosystems, evaluate the runoff generated from a highway system and the changes that can be attributed to the runoff.

Urgency and Payoff

Although most communities require stormwater detention to decrease peak flowrates, it is uncommon for highway systems to implement similar hydrologic features.  The impact on streams can be significant (scour, stream bank collapse, removal and cover of benthic layers) with subsequent degradation of stream quality.

Suggested By

Findlay G. Edwards, Ph.D., P.E., University of Arkansas

Submitted

03/26/2009