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  Hurricane Harvey Flooding Study

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​Client: Confidential client (as subconsultant of WRCS)
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​Year: 2017 - 2018
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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.
Applied Skills:
  • H&H Modeling: Mining & Processing; Conceptualization & Setup
  • Flooding Mapping & Analysis​
Consulting Areas:
  • Stormwater Management
Software Applied:
  • HEC-RAS
  • RiverFlow2D​
  • ArcMap
  • LAGO Toolbox
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. 
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  • About Us
    • The Company
    • Leadership
    • Certifications
  • Services
    • Modeling Services
    • Consulting Services
    • Software Development >
      • Fill Sinks Plus
      • HEC-RAS to MIKE11
      • SWMM5 to Shp
      • Lago Toolbox
  • Projects
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Modeling Services
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- Data mining & Processing
- Conceptualization & Setup
- Sensitivity Tests
- Model Calibration
- Model Telescoping
- Design Storm Simulations
- Scenario Evaluations
​- Post-Processing of results
- Peer review
- Model QA/QC
- Mass balance checks
- Fixing numerical instabilities
- Calibration/validation checks
​- Reservoir Storage Modeling
- GIS data mgmt. and tools

Consulting Areas
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- Natural resources planning
- Stormwater management
- Groundwater management
- Surface water structure design
- Water supply planning
- Species and sediment transport
- Salt water intrusion
- Floodplain delineation & management
- Floodway Encroachment Analysis
​- Urban and coastal flooding
- Water quality studies
- Wetland conservation and restoration
- Wellhead protection area delineation
- Landscape ecology
- Water regulations permitting

Featured Software
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MIKE 11
MIKE SHE
MIKE21
ECOLab
MODFLOW
GWV (Vistas)
MODHMS
​GIS-ArcMap

HEC-RAS
​HEC-HMS
EPA-SWMM
​XP-SWMM
ICPR
​RiverFlow2D
WASP
HSPF

Software Development
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Spreadsheet modeling
File format converters
Pre- & post-processing tools
A la carte software (C#, Python, etc)


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