Lower Sabine Watershed Discovery Report - RiskMAP6

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Table 21: Metrics and Rankings of Needs (continued) Evaluation Guide Description of Need / Action Item High – Local community would immediately benefit from the action and FEMA’s metrics would also be met Medium – Local community would benefit over the longer term from the action and a portion of FEMA’s metrics may be met Low – Local community activities can continue without this revision and FEMA’s metrics are not impacted Impacts From Any Current Map Actions FEMA Metric or Community Benefit Evaluation Relates to Community Comment Number Community Action – Activity would be more appropriate as a community led action Location of Need/Project Details 27 Lower Sabine River Enhanced Analysis near Deweyville, Texas 28 Lower Sabine River Enhanced Analysis 29 Bayou Zourie, Vernon Parish Enhanced Analysis The last countywide FIRM was published in 1998 in Newton County and 2011 in Calcasieu Parish This 13-mile section of River is Unverified Zone AE in Newton County and is Valid Zone AE in Calcasieu Parish. Area often floods on Texas side and is of high mitigation interest to local communities. Best available topographic data is 2012 LiDAR available from TNRIS and SRA. Lower Sabine River has been studied by several different H&H methodologies at different times. It is the primary flooding source in the Watershed and causes severe flooding. There is debate about the effects of Toledo Bend on flooding along the River. Sections of the River are Unverified while other sections are Valid. Best available topographic data is 2012 .LiDAR available from TNRIS and SRA. 4-mile section The last countywide was published in 2011 Stream is unknown Several RL/SRL properties in area, BFEs may help Parish with grant applications Best available topographic data is 2012 LiDAR available from LSU No current map actions SFHA studies could be added to map as LOMRs or PMRs. Preliminary maps for Orange County issued August 2012, during Discovery process. SFHA studies could be added to map as LOMRs or PMRs. No current map actions SFHA studies could be added to map as LOMRs or PMRs. Approximately 13 miles of Zone AE would be added to NVUE as Verified. Communities would have a better understanding of hazards and risks along Sabine River. Consistent methodology and floodplain mapping across political boundaries. Could use valid Calcasieu model and methodology and apply to Newton lowering costs. Less costly than restudying entire Sabine River through Watershed Approximately 152 miles of Zone AE NVUE Communities would have a better understanding of hazards and risk along Sabine River Consistent methodology and floodplain mapping across political boundaries Approximately 4 miles of Zone AE would be added to NVUE as verified Area is of high mitigation interest to County Medium Medium Medium No specific comment No specific comment G8 62
Table 21: Metrics and Rankings of Needs (continued) Evaluation Guide Description of Need / Action Item High – Local community would immediately benefit from the action and FEMA’s metrics would also be met Medium – Local community would benefit over the longer term from the action and a portion of FEMA’s metrics may be met Low – Local community activities can continue without this revision and FEMA’s metrics are not impacted Impacts From Any Current Map Actions FEMA Metric or Community Benefit Evaluation Relates to Community Comment Number Community Action – Activity would be more appropriate as a community led action Location of Need/Project Details 30 Coopers Gully, Orange County 31 32 33 34 Greenwood Acres Drainage Study, Orange County Basic Analysis Cow Bayou, Claiborne Ditch, Orange County Adams Bayou, Newton and Orange Counties Unnamed Tributaries / Bess Branch, Beauregard and Calcasieu Parishes Improvements to drainage channel and new pump station along this stream have been completed; these improvements should be captured in a LOMR. Orange County believes SFHAs in this area are understated and should be restudied. SFHAs along Cow Bayou and Claiborne Ditch area (2 miles) near the City of Vidor are believed to be understated. The area consists of non-model backed Zone A streams. Best available topographic data is LiDAR available from TNRIS. SFHAs seem to narrow considerably as the stream crosses county boundaries. The last countywide FIRM was published in 1998 in Newton County while preliminary was issued in August 2012. Best available topographic data is 2012 LiDAR available from TNRIS and SRA. SFHA disconnect across county boundaries. The last countywide FIRM was published in 2010 for Beauregard Parish and 2011 for Calcasieu Parish. Best available topographic data is 2012 LiDAR available from TNRIS and SRA. Preliminary maps for Orange County issued August 2012, during Discovery process. Could be added to map as LOMRs or PMRs. Preliminary maps issued August 2012, during Discovery process. Preliminary maps for Orange County issued August 2012, during Discovery process. Preliminary maps for Orange County issued August 2012, during Discovery process. No map actions for Newton County No map actions SFHA studies could be added to map as LOMRs or PMRs. 2 miles of Zone AE NVUE Communities would have a better understanding of hazards and risk along Coopers Gully how risk has been reduced Communities would have a better understanding of hazards and risk in this area 2 miles of approximate Zone A NVUE. Communities would have a better understanding of hazards and risks along streams in this area. Consistent methodology and floodplain mapping across political boundaries. Communities would have a better understanding of hazards and risks along streams in this area 3 miles of approximate Zone A NVUE. Consistent methodology and floodplain mapping across political boundaries. Communities would have a better understanding of hazards and risks along streams in this area. 2 miles of approximate Zone A NVUE. Low Low Low Low Low M6, M5 O8 G20 No specific comment No specific comment 63
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Discovery Report Lower Sabine Water
Page 3 and 4:
Table of Contents Acronyms and Abbr
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Acronyms and Abbreviations AAL BFE
Page 7 and 8:
I. Discovery Overview The Federal E
Page 9 and 10:
Figure 1: Lower Sabine Watershed an
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Figure 2: Percent Urban Cover Lower
Page 13 and 14:
Other important stakeholders in the
Page 15 and 16:
County’s FIRMs and provide a unif
Page 17 and 18: mileage from CNMS for the whole Wat
Page 19 and 20: Table 8: NFIP Insurance Claims by C
Page 21 and 22: Figure 4: Risk Factors and Topograp
Page 23 and 24: The Engagement Plan is a tool that
Page 25 and 26: Discovery Workshop attendees to lis
Page 27 and 28: were appreciative of the chance to
Page 29 and 30: Data collected in the pre-discovery
Page 31 and 32: Table 13: Data Collection Summary -
Page 33 and 34: Table 13: Data Collection Summary -
Page 35 and 36: All supporting information, data, a
Page 37 and 38: i. Pre-Discovery CNMS Analysis Tabl
Page 39 and 40: Summary of CNMS Concerns Beauregard
Page 41 and 42: Newton County, Texas: Newton County
Page 43 and 44: and Orange Counties have effective
Page 45 and 46: Table 17: Comparison of 1-Percent A
Page 47 and 48: iii. Pre-Discovery Hydraulics and F
Page 49 and 50: Figure 5: Sabine River SFHA Disconn
Page 51 and 52: Figure 7: Sabine River SFHA Disconn
Page 53 and 54: iv. Engineering Review of Community
Page 55 and 56: Table 20: Potential Watershed Actio
Page 61 and 62: Table 21: Metrics and Rankings of N
Page 67: Table 21: Metrics and Rankings of N
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Lower Sabine Watershed Discovery Report - RiskMAP6

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