Storm Con 2012
Transcript of Storm Con 2012
Experience │ Innovation │ Results
Stormwater Runoff Management and Modeling in Southwest Louisiana
Justin M. Shaw, MS, PE Jeanne C. Arceneaux Hornsby, MS, PE Robert L. Miller, MS, PE
StormCon 2012
PRESENTATION OUTLINE
http://tetiarebeachresort.com/resources/photos.htm
• Project History
• Hydraulic and Hydrologic Modeling
• Best Management Practices
• Public Involvement and Acquiring Funds
CONSULTANTS AND AGENCIES
LSU Atlas
ECM
PROJECT LOCATION CALCASIEU PARISH, LA
OCTOBER 2006 STORM EVENT PRECIPITATION
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Old Town Bay
Moss Bluff
Lake Charles 7 NW - Sam Houston
Lake Charles 2N
Dry Creek
OCTOBER 2006 STORM EVENT AERIAL PHOTOGRAPHS
NUMERICAL MODELING DATA COLLECTION EFFORT
• Total Study Area: 360 sq mi
• Studied Basins: 274
• Studied Channel Length: 236 mi
• Collected Survey Points: 28,000
• Hydrologic Modeling Software: HEC-HMS v3.4
• Hydraulic Modeling Software: HEC-RAS v4.1.0
• GIS Software: ESRI ArcMap v9.3.1
NUMERICAL MODELING SABINE-LACASSINE: LIDAR & STUDY AREA
NUMERICAL MODELING SABINE-LACASSINE: BASIN & LAND USE
NUMERICAL MODELING SABINE-LACASSINE: SOIL GROUP & CURVE NUMBER
NUMERICAL MODELING SABINE-LACASSINE: FEMA COMPARISON
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NUMERICAL MODELING WARD 1: AERIAL COMPARISON
NUMERICAL MODELING DRAINAGE IMPROVEMENTS
NUMERICAL MODELING SABINE-LACASSINE: CULVERT DRAINAGE IMPROVEMENTS
NUMERICAL MODELING SABINE-LACASSINE: CHANNEL DRAINAGE IMPROVEMENTS
NUMERICAL MODELING SABINE-LACASSINE: INUNDATION IMPROVMENTS
BEST MANAGEMENT PRACTICES
• Detention Ponds
• Low Impact Development
• Maximizing Green Space
MAINTENANCE PLANS
• Maintenance
• Inspection
• Access
• Owner Responsibilities
• Ordinances
PUBLIC INVOLVEMENT
• Awareness and Education
• Stormwater Newsletter
• PSA and Media
• Webpage
• Drainage Complaints
• Dumping and Littering
ACQUIRING FUNDS
• Hazard Mitigation
• Pre-Disaster Mitigation Grant
• Flood Mitigation Assistance
• Repetitive Flood Claims
• Severe Repetitive Loss
CONCLUSIONS
• Project History
• Hydraulic and Hydrologic Modeling
• Best Management Practices
• Public Involvement and Acquiring Funds
Experience │ Innovation │ Results
WATER RESOURCES Hydraulic & Hydrologic Engineering
337.237.2200
www.fenstermaker.com