Guidelines for evaluating and selecting modifications to existing roadway drainage infrastructure to improve water quality in ultra-urban areas
By: Geosyntec Consultants ... [et al.].
Contributors: National Research Council (U.S.). Transportation Research Board; National Cooperative Highway Research Program; American Association of State Highway and Transportation Officials; United States. Federal Highway Administration
Series: NCHRP report -- 728; Report (National Cooperative Highway Research Program) -- 728.
Publisher: Transportation Research Board
Published: 2012
Place of publication: Washington, D.C
Language: eng
Number of pages: 167
ISBN-13: 9780309258609
Subjects: Road drainage; Urban runoff; Retrofitting; Drainage; Runoff
Other titles: Stormwater best management practices sizing and design tool.
Description: "TRB's National Cooperative Highway Research Program (NCHRP) Report 728: Guidelines for Evaluating and Selecting Modifications to Existing Roadway Drainage Infrastructure to Improve Water Quality in Ultra-Urban Areas provides guidelines to evaluate and select hydraulic modifications to existing drainage infrastructure that will help mitigate potential impacts of highway runoff on receiving waters.  The guidelines are directed specifically at roadway facilities in dense urban areas that can be particularly difficult and costly to retrofit because of space limitations, high pollutant loadings, hydrologic flashiness, hydraulic constraints, legacy contamination, utility conflicts, and other issues. The guidelines are accompanied by a Microsoft® Excel-based design and sizing tool on a CD-ROM included with the print version of the report. The tool generates best management practice (BMP) performance curves that relate the performance and design criteria for selected BMP controls described in the guidelines for each of the 15 U.S. rain zones. The Excel spreadsheet that is content on the CD-ROM is available for download."--Summary.
Notes: At head of title: National Cooperative Highway Research Program.

Title of accompanying CD-ROM: Stormwater best management practices sizing and design tool, NCHRP project 25-31 (CRP-CD-116).

Includes bibliographical references (p. 161-167).

Report also available online.

Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration NCHRP project 25-31