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US Army Corps of Engineers

Jan 25, 2016

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Elpida Fragkia

US Army Corps of Engineers. Cibolo Creek Watershed Study. One Corps Serving The Army and The Nation. Cibolo Creek Watershed Study. US Army Corps of Engineers. Cost-Share Study Sponsors. Technical Study Team. One Corps Serving The Army and The Nation. Cibolo Creek Watershed Study. - PowerPoint PPT Presentation
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Page 1: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed Study

Page 2: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Cost-Share Study Sponsors

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed Study

Technical Study Team

Page 3: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Format of Meeting

• Power point presentation• Open house displays• Comments

• Written on comment cards• Oral at comment table

• Meeting adjourned by 9:00 pm

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed Study

Page 4: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Purpose of Meeting

• Inform the public about the study• Solicit comments from public about

issues within the basin• National Environmental Policy Act

(NEPA) compliance

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed Study

Page 5: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

AgendaStudy Overview

• General Overview• Phase 1 Summary• Phase 2 Progress• What’s to come

• Phase 3 - Formulation of Alternatives & Detailed Feasibility Studies

Comments / Questions

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed Study

Page 6: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Study AuthorityHouse Resolution 2547 dated 11 Mar 98

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyGeneral OverviewGeneral Overview

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyGeneral OverviewGeneral Overview

Page 7: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Planning Study Process

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyGeneral OverviewGeneral Overview

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyGeneral OverviewGeneral Overview

ConstructionConstructionPreconstructionEngineering & Design (PED)

PreconstructionEngineering & Design (PED)

FeasibilityPhase

FeasibilityPhase

ReconnaissancePhase

ReconnaissancePhase

Civil Works Project

Civil Works Project Delivery - “An Overview”

Page 8: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Study Purpose

• Ecosystem Restoration • Aquifer recharge• Water Supply• Watershed Management

• Flood Damage Reduction

Study Cost - $2.9 M

Study Duration ~ 48 months

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyGeneral OverviewGeneral Overview

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyGeneral OverviewGeneral Overview

Page 9: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Study Limits

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyGeneral OverviewGeneral Overview

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyGeneral OverviewGeneral Overview

Page 10: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Feasibility Study Phases• Phase 1 - Existing

Conditions• Phase 2 - Evaluate Possible

Improvement Scenarios • Phase 3 - Detailed Evaluation of

Alternatives

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1Phase 1

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1Phase 1

Page 11: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Feasibility Study Schedule• Phase 1 - Complete 18 mos. (Mar 02

– Sep 03)

• Phase 2 - In Progress 20 mos. (Feb 04 – Sep 05)

• Phase 3 - ~ 18 - 24 mos.

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyGeneral OverviewGeneral Overview

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyGeneral OverviewGeneral Overview

Page 12: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

1. Mapping2. Ecological Analysis/Modeling

(Fieldwork/EDYS) 3. Hydrology and Hydraulics4. HTRW Analysis5. Environmental Resource Analysis6. Cultural Resources7. Flood Damage Assessment8. Economic Analysis

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Page 13: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

• The evaluation of the Indicators of Rangeland Health show the health of the rangeland in this watershed to be primarily moderate / slight to moderate in its departure from the ecological site descriptions for the Cibolo Creek watershed

• Extreme 5%• Moderate to Extreme 15%• Moderate 30%• Slight to Moderate 31%• None to Slight 20%

Page 14: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Rating = None to slightRating = None to slight

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Page 15: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Rating = Rating = Slight to moderateSlight to moderate

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Page 16: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Rating = ModerateRating = Moderate

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Page 17: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Rating = Moderate to extremeRating = Moderate to extreme

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Page 18: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Rating = ExtremeRating = Extreme

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Page 19: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 1 SummaryPhase 1 Summary

Page 20: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Feasibility Study Phases• Phase 1 - Existing Conditions• Phase 2 - Evaluate

Possible Improvement Scenarios

• Phase 3 - Detailed Evaluation of Alternatives

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Page 21: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Potential Best Management Practices

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Brush management

Range Seeding

Fencing

Water Development

Prescribed Grazing

Prescribed Burning

Water and Sediment Control

Structures

Ponds

Wildlife Upland Habitat

Management

Riparian Buffers

Wetland Creation

Management of Parking Lot

Runoff

Conservation Cropping

Sequence

Crop Residue Use

Cover Cropping

Pest and Nutrient Management

Contour Buffer Strips

Irrigation Water Management

Filter Strips

Critical Area Shaping and

Planting

Grassed Waterways

Xeriscaping

Greenbelts

Page 22: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Areas Where BMP Could be Considered

Grazing and Ranch Lands Croplands Urban Areas Urban-Residential Areas Urban-Commercial Areas

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2 Phase 2

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2 Phase 2

Page 23: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Recharge Structures

The study expects to analyze what ecosystem restoration and water supply benefits would be derived from recharge structures

In addition, the recharge structures would have flood damage reduction benefits

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Page 24: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Typical Recharge Structure

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Page 25: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Fort Worth DistrictFort Worth District

Cibolo Creek Watershed Cibolo Creek Watershed StudyStudy

Phase 2Phase 2

Page 26: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Large Recharge StructureSmall

Structure281 Site

Recharge Zone

Height 60’ 80’ 20’-30’

Storage5,000 acre-

feet10,000 acre-

feet300-1,000 acre-feet

Outflow 5’ culvert 5’ culvert 5’culvert

Page 27: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Large Recharge StructureSmall

Structure281 Site

Recharge Zone

Channel InfiltrationTrinity 22% ± N/A N/A

Channel InfiltrationEdwards 3% + 18% + 5% +

Decrease in Oct. 98 peak flow at USGS

Gage at Selma

10 % or1.5’ in Stage

25% or4’ in Stage

4% or1’ in Stage

Page 28: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Fort Worth DistrictFort Worth District

Page 29: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Phase 1 Identified Flooding Problems in Schertz and Selma

The recharge structures would provide reduction in flood stages

Additional measures are being considered to reduce flooding in Schertz

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Page 30: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 2Phase 2

Page 31: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyFlood Damage ReductionFlood Damage Reduction

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyFlood Damage ReductionFlood Damage Reduction

Page 32: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Feasibility Study Phases• Phase 1 - Existing Conditions• Phase 2 - Evaluate Possible

Improvement Scenarios • Phase 3 - Detailed

Evaluation of Alternatives

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 3Phase 3

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 3Phase 3

Page 33: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Phase 3 Detailed Evaluation of Alternatives

During Phase 3, a recommended plan will be selected to go forwarded for USACE headquarters approval

Preconstruction, engineering and design (PED) will begin if approved

Project will have to Approved and Appropriated by Congress before construction begins

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 3Phase 3

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyPhase 3Phase 3

Page 34: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Planning Study Process

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyGeneral OverviewGeneral Overview

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyGeneral OverviewGeneral Overview

ConstructionConstructionPreconstructionEngineering & Design (PED)

PreconstructionEngineering & Design (PED)

FeasibilityPhase

FeasibilityPhase

ReconnaissancePhase

ReconnaissancePhase

Civil Works Project

Civil Works Project Delivery - “An Overview”

Page 35: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Summary

Watershed exhibits degradation in select ecosystems

Flooding exists in the cities of Schertz and Selma

Modeling efforts show potential to increase recharge and reduce flooding

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed Study

Page 36: US Army Corps of Engineers

US Army CorpsUS Army Corpsof Engineersof Engineers

One Corps Serving The Army and The Nation

Point of Contact

Ed FooCESWF-PM-CPO Box 17300

Fort Worth, TX 76102-0300817-886-1375

www.swf.usace.army.mil

Cibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed StudyCibolo Creek Watershed Study