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  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 
Services:
+ 1D and 2D Modeling: Model setup and post-processing
+ Flooding analysis
Target Area(s):
+ Stormwater Management
+ Flooding Assessment
+ System operation and 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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  • Home
  • About Us
    • The_Company
    • Leadership
    • Certifications
  • Services
    • Modeling_Services
    • Consulting_Services
    • Software_Development >
      • Fill_Sinks_Plus
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      • Lago_Toolbox
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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 check
- Fixing numerical instabilities 
- Calibration/validation check
​- 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
SWMM
​XP-SWMM
ICPR
SMS
​RiverFlow2D
WASP
HSPF
Software Development 
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Spreadsheet modeling
File format converters
Pre- & post-processing tools
A la carte software (C, C++, etc)

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