LWI Region 3 Modeling Overview

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1 - Region 3 Description	6
2 - LWI Model Development Phases	8
3 - Hydrologic and Hydraulic Modeling Methodology	10
3.1 Analysis of Record for Calibration (AORC)	10
3.2 Land Cover Classification	12
3.3 LiDAR	14
3.4 Survey Planning	16
3.5 Soil Data Processing and Integration	18
3.6 Watershed-Specific Description	20
3.6.1 Boeuf	20
a. Hydrologic Model (HEC-HMS)	20
b. Hydraulic Model Setup (HEC-RAS 2D)	22
c. Hydraulic Model Calibration and Validation	25
3.6.2 Macon	28
a. Hydrologic Model (HEC-HMS)	28
b. Hydraulic Model (HEC-RAS)	30
3.6.3 Tensas	34
3.6.4 Cocodrie	36
4 - Precipitation and Frequency Analysis	38
4.1 Precipitation and Frequency Analysis:	38
4.2 Watershed-Specific Description	44
4.2.1 Boeuf	44
4.2.2 Macon	46
4.2.3 Tensas	48
4.2.4 Cocodrie	50
5 - Consequence Modeling	54
5.1 Flood Impact Assessment Using Go Consequence Software	54
6 - Proof of Concept	58
6.1 City of Monroe	58
6.1.1 Boeuf Watershed – Young's Bayou Flood Mitigation Scenario	58
6.2 Bayou Cocodrie	60
6.2.2 Concept 1: City of Vidalia Pump station	60
6.2.3 Concept 2: Canal and Lake Sediment Removal	60
7 - Future Use of Region 3 Models	62
7.1 Breakout Model Development	62
8 - EnDMC	64

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