Guidelines for Evaluating and Selecting Modifications to Existing Roadway Drainage Infrastructure to Improve Water Quality in Ultra-urban Areas"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 Microsofta 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. |
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Contents
Section 1
Introduction | 1 |
Section 2
UltraUrban Highway Runoff Characterization | 8 |
Section 3
Retrofit Drivers and Practices | 20 |
Section 4
BMP Options for UltraUrban Highway Retrofits | 24 |
Section 5
Evaluating BMP Effectiveness | 69 |
Section 6
BMP Sizing and Design | 83 |
Section 7
Maintenance and Monitoring | 94 |
Section 8
Retrofit Costs | 104 |
Section 9
Retrofitting Strategies and Process | 109 |
Section 10
Case Studies | 124 |
| 161 | |
Common terms and phrases
areas assessment biofiltration bioretention bioswale BMP design BMP performance BMP retrofits BMP selection Caltrans catch basins clogging constraints Constructed wetlands construction conveyances costs debris detention basins detention facilities developed devices discharge dissolved drainage effective effluent evaluation existing Figure filtration systems flow attenuation gross solids groundwater head requirements highway runoff hydraulic hydrodynamic hydrologic impacts infiltration infiltration capacity influent maintenance requirements Manette Bridge MassHighway media bed media filter media filtration ment metals MnDOT monitoring NCDOT NPDES nutrients ODOT outlet particles pavement permeable asphalt potential pretreatment processes proprietary BMPs receiving waters reduce regulatory removal retrofit projects sand filters Section siting sizing soils space space-constrained storage storm stormwater swales SWMM target tion TMDLs trash treatment BMPs treatment performance treatment train Ultra-Urban Highway Retrofits Ultra-Urban Retrofits underground BMPs underground detention University et urban USEPA vaults volume reduction water quality water quality treatment watershed wetlands WSDOT
Bibliographic information
| Title | Guidelines for Evaluating and Selecting Modifications to Existing Roadway Drainage Infrastructure to Improve Water Quality in Ultra-urban Areas Volume 728 of NCHRP report National Cooperative Highway Research Program Report Volume 728 of Report (National Cooperative Highway Research Program) |
| 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 |
| Edition | illustrated |
| Publisher | Transportation Research Board, 2012 |
| ISBN | 030925860X, 9780309258609 |
| Length | 167 pages |
| Export Citation | BiBTeX EndNote RefMan |