Use of Vegetative Controls for Treatment of Highway Runoff

Walsh, Frank M.; Barrett, Michael E.; Malina, Joseph F.; Charbeneau, Randall J.

i

Use of Vegetative Controls for Treatment of Highway Runoff

1998-09-01
By Walsh, Frank M. ; Barrett, Michael E. ; Malina, Joseph F.

File Language:

English

Details

Creators:

Walsh, Frank M. ; Barrett, Michael E. ; Malina, Joseph F. ; Charbeneau, Randall J.
Corporate Creators:

University of Texas at Austin. Center for Transportation Research
Corporate Contributors:

Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

Report No. FHWA/TX-7-2954-2
Resource Type:

Tech Report
Geographical Coverage:

United States ; Texas
Corporate Publisher:

University of Texas at Austin. Center for Transportation Research
Abstract:

Pollutants found in runoff from highways may cause toxic responses in receiving waters for some conditions and, in addition, are obstacles to obtaining water quality goals in the United States. This study investigated the capability of two vegetative controls -- grassed swales and vegetated buffer strips -- to treat highway runoff. A grassed swale was constructed in an outdoor channel to investigate the impacts of swale length, water depth, and season of the year on removal efficiency. Results indicate that swale length and water depth affect the removal of runoff constituents by swales, and that the removal efficiency can vary with the season of the year. Two vegetated strips treating highway runoff in the Austin, Texas area were monitored to determine removal capabilities. The filter strips removed most constituents effectively and consistently, and the inclusion of filter strips is recommended in future highway design if conditions are appropriate and right-of-way is available.
Format:

PDF
Funding:

7-2954
Download URL:

https://rosap.ntl.bts.gov/view/dot/14867/dot_14867_DS1.pdf
File Type:

[PDF - 2.13 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:ba8046b28b96ad4b0444106a610ca525a08bde6d573cb5d9d906e806724eec4d

File Language:

English

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