Modeling Sediment Load in Storm Drain System of Southeast Texas Coastal Region

AbstractSedimentation in a drain system has been recognized as one of the major causes of nuisance flooding produced by localized storms in Southeast Texas. The objective of the study is to assess the sediment load from runoff under different hydrological and road conditions to implement design guid...

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Bibliographic Details
Published in:Journal of irrigation and drainage engineering 2022-04, Vol.148 (4)
Main Authors: Qian, Qin, Ketabdar, Milad, Jao, Mien, Li, Xianchang
Format: Article
Language:English
Subjects:
Cleaning
Coastal zone
Design
Diffusion waves
Drainage systems
Empirical equations
Flooding
Flow velocity
Hydrodynamics
Hydrology
Inlets
Rain
Rainfall
Rainfall intensity
Road conditions
Runoff
Sediment
Sediment load
Sediments
Severe weather
Storm drains
Storms
Technical Papers
Weather
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Summary:AbstractSedimentation in a drain system has been recognized as one of the major causes of nuisance flooding produced by localized storms in Southeast Texas. The objective of the study is to assess the sediment load from runoff under different hydrological and road conditions to implement design guidance for a proper self-cleaning drain system. A diffusion wave model is developed to simulate runoff hydrodynamics on the roadway with curb inlets. An empirical sediment load equation is developed as a function of rainfall intensities, road conditions, and field sediment characteristics. The required flow velocity to erode the cohesive deposited sediment, and transport the deposited sediment incorporating the sediment from runoff in the drainpipe has been investigated to implement design guidance for a self-cleaning drain system. Regional hydrological conditions and field sediment characteristics are critical to design an effective drainage system for improving coastal resilience under severe weather conditions.
ISSN:0733-9437
1943-4774
DOI:10.1061/(ASCE)IR.1943-4774.0001672