American Society of Civil Engineers


Maintenance Interval for Stormwater Hydrodynamic Separators


by Junghoon Kim, (Rutgers University, Department of Civil and Environmental Engineering, 623 Bowser Road, Piscataway, NJ 08854) and Qizhong Guo, (Rutgers University, Department of Civil and Environmental Engineering, 623 Bowser Road, Piscataway, NJ 08854. E-mail: Qguo@rci.rutgers.edu)
Section: Water, Wastewater, and Stormwater, pp. 3572-3580, (doi:  http://dx.doi.org/10.1061/41173(414)374)

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Document type: Conference Proceeding Paper
Part of: World Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability
Abstract: Twelve (12) stormwater manufactured treatment devices along New Jersey highways were selected for monitoring, analysis, and development of a maintenance interval. The depth of bottom sediment trapped in the hydrodynamic separators was measured every three months over three years after cleanout. Based on the measured rate of sediment accumulation, a maintenance interval of three years for urban/heavy traffic areas and four and a half years for non-urban/light traffic areas was determined. These maintenance intervals assume typical site conditions. A maintenance interval of one and a half years was recommended where land surface erosion problems occur.


ASCE Subject Headings:
Maintenance
Hydrodynamics
Stormwater management