Hurricane Creek - Proof of Concept Channel Improvements HEC-RAS Model and Results

The Hurricane Creek Channel Improvements HEC-RAS version 6.3.1 model was developed by Freese and Nichols, Inc. (FNI) as part of the Louisiana Watershed Initiative (LWI) modeling program and is located in the LWI modeling Region 2. This is a 1D-2D model that leverages internal inflows developed by the Castor (CA) HEC-HMS Atlas 14 Everywhere model. The modeled streams include Hurricane Creek and its tributaries. The terrain used for modeling primarily sources the 2021 Department of Transportation and Development LiDAR with bathymetry incorporated from surveys conducted by Nixon Engineering in 2023. The model and terrain use the vertical datum NAVD88 and the State-Plane projection NAD 1983 (2011) State Plane Louisiana North FIPS 1701 (US Feet). Plans are provided for both existing and proposed conditions, covering storm events of 5-year, 10-year, 25-year, 50-year, 100-year, 200-year, and 500-year frequencies.

This model was developed as part of LWI program. It applies Atlas 14 rainfall to Hurricane Creek and its tributaries to evaluate whether the proposed channel improvements effectively reduce flooding in the area.

Keywords
HEC
RAS
lwi
model
6.3.1
Hurricane
Creek
planning region 2
modeling region 2

Grid

Dimension 2D
Coordinate system EPSG:6477
Shape Unstructured
Description None

Application date

2025-06-16

Common software version

HEC-RAS version 6.3.1

Authors

Full name email
Jeremy Dixon Jeremy.Dixon@freese.com
Claire Barber Claire.Barber@freese.com

Common input files

Title Description Location
Model Project file HEC-RAS project file which links projects with plans, geometry, and flow files CA.prj
Terrain Terrain dataset Castor_LiDAR_2021_BathyFinal_Fixed.hdf
Manning's n Values Land use and land classification dataset Castor_Manning_2D.hdf

Common output files

Title Description Location
ProposedConditions_005YR24HR Geometry is based on 2021 USGS LiDAR. CA.p38
ProposedConditions_010YR24HR This storm event was developed as the 10 yr proposed conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere.The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p39
ProposedConditions_025YR24HR This storm event was developed as the 25 yr proposed conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere. The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p40
ProposedConditions_050YR24HR This storm event was developed as the 50 yr proposed conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere. The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p41
ProposedConditions_100YR24HR This storm event was developed as the 100 yr proposed conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere. The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p37
ProposedConditions_200YR24HR This storm event was developed as the 200 yr proposed conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere. The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p42
ProposedConditions_500YR24HR This storm event was developed as the 500 yr proposed conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere.The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p43
ExistingConditions_005YR24HR This storm event was developed as the 5 yr existing conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere. The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p45
ExistingConditions_010YR24HR This storm event was developed as the 10 yr existing conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere.The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p46
ExistingConditions_025YR24HR This storm event was developed as the 25 yr existing conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere.The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p47
ExistingConditions_050YR24HR This storm event was developed as the 50 yr existing conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere.The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p48
ExistingConditions_100YR24HR This storm event was developed as the 100 yr existing conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere. The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p44
ExistingConditions_200YR24HR This storm event was developed as the 200 yr existing conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere. The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p49
ExistingConditions_500YR24HR This storm event was developed as the 500 yr existing conditions storm for the Hurricane Creek model. It uses Atlas 14 data everywhere. The duration of the event is 24 hr as that is the critical duration of the watershed. CA.p50

Spatial Extent

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Spatial Valid Extent

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Extent Toggle extent

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Associated simulations

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  • Hurricane Creek HEC-RAS Proof-of-Concept Proposed Conditions See more →
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Containing Packages

This resource is included in the following packages:

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  • Castor (CA) Louisiana Watershed Initiative (LWI) Models and Data See more →

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Metadata record information

Created By katie.koch@freese.com
Created At 2025-06-16t21:14:33.620237+00:00
Access Level Public
Is Reviewed True
Owner katie.koch@freese.com

  • 2026-06-26 16:41:07.457000 - edit - fmessina
  • 2025-12-12 20:11:57.970000 - edit - fmessina
  • 2025-12-12 18:48:16.467000 - edit - fmessina
  • 2025-10-02 13:21:47.173000 - update -
  • 2025-08-06 15:22:06.032000 - edit - fmessina
  • 2025-06-26 16:05:24.622000 - edit - Katie Koch
  • 2025-06-24 16:24:21.335000 - edit - Katie Koch
  • 2025-06-23 17:42:17.336000 - edit - Katie Koch
  • 2025-06-23 17:39:39.175000 - edit - Katie Koch
  • 2025-06-19 20:20:24.346000 - edit - Katie Koch