Hurricane Harvey Flood Inundation Study
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Client: Confidential client Year of Completion: 2018 About: Hurricane Harvey produced extensive flooding upstream of the Addicks and Baker Reservoirs near Houston, Texas. Initial tasks focused on using HEC-RAS models and GIS tools to map the extent of flooding based on the measured peak water surface in each reservoir. Follow tasks included a spreadsheet analysis to evaluate the effect of operations of the outlet gates and to develop a 2-D model of the study area using the RiverFlow2D software |
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Services:
+ 1D and 2D Modeling: Model setup and post-processing + Flooding analysis Target Area(s):
+ Stormwater Management + Flooding Assessment + System operation and management |
Specifics:
LAGO developed a 1D model of the study area using HEC-RAS and used model results to estimate the extent of flooding at peak stage upstream of the reservoirs. LAGO also completed a detailed spreadsheet analysis to considered gate operations and the timing and duration of measured stages in the reservoir. Finally, LAGO developed a 2-D model using RiverFlow2D to estimate the timing and duration of flooding during the storm. |
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Outcome:
LAGO provided the results from this modeling study to the client that is using them to support the claims from affected property owners. |
