flood protection plan for the west fork of the trinity river above eagle mountain lake main report

383 Pages·2002·14.82 MB·English

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FLOOD PROTECTION PLAN FOR THE
WEST FORK OF THE TRINITY RIVER
ABOVE EAGLE MOUNTAIN LAKE
MAIN REPORT
Prepared For: Wise County,
Texas
Funded By: Texas Water
Development Board
Contract No. 92-483-326
Prepared By: Shawn Engineering/Environmental Corp. (SEE Corp.)
With The Assistance Of:
• O'Brien Engineering
• Eichert Engineering
FINAL REPORT
January, 1994
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WISE COUNTY COMMISSIONERS
COURT
L.B. McDonald, County Judge
Kyle Stephens, Precinct #1
Vernon Clower, Precinct #2
Ken Steel, Precinct #3
Bryan Farris, Precinct #4
STEERING COMMITTEE
Mayor Mike Richardson
Mayor Clay Dent
Joe Jackson
Wanda Dixon
Mayor Bobby Williams
Lou Vee Bridges
Clayton Wood
Gary Bates
L. B. McDonald
Bryan Farris
Ken Steel
TECHNICAL ADVISORY COMMITTEE
AI Scott
Bill Lewis
Tommy Hays
Lewis Kirk
Edgar Cowling
Prepared By:
Shawn Engineering/Environmental Corp. (SEE Corp.)
With The Assistance Of:
• O'Brien Engineering
• Elchert Engineering
WN
ENGINEERING I
ENVIRONMENT AL CORP.
L.B. McDonald January 25, 1994
County Judge
Wise County
P.O. Box 393
Decatur, Texas 76234
Dear Judge McDonald:
The project team of Shawn Engineering/Environmental Corporation (SEE Corp.) and O'Brien
Engineering is pleased to present the "Flood Protection Plan for the West Fork of the Trinity
River above Eagle Mountain Lake". This Plan is intended to serve as a guide in developing
a long term flood management system for the upper portion of the West Fork of the Trinity
River. Benefits from this system will be enjoyed by all areas of the West Fork and downstream
areas of the Trinity River.
The Plan has been developed with the guidance of the County appointed Steering Committee
and Technical Advisory Committee. Without their assistance, it would not have been possible
to develop the Plan. Invaluable assistance was provided by Mr. Bill S. Eichert, P.E. of Eichert
Engineering in preparing the technical aspects of the Plan.
We especially would like to thank AI Scott, Bill Lewis, Tommy Hays, Lewis Kirk, and Edgar
Cowling of the Technical Advisory Committee and Mr. Curtis Johnson of the Texas Water
Development Board for the many hours they spent giving us guidance in development of the
Plan. Without their assistance a viable plan would not have been possible.
The Plan is intended to provide multiple benefits to the West Fork area above Eagle Mountain
Lake and drainage related benefits to downstream areas. The flexible nature of the Plan
makes it possible to virtually immediately start making physical improvements and for the area
to start receiving benefits.
Sincerely,
Shawn Engineering/Environmental Corp. rien En~neering
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Bob Shawn, P.E. O'Brien, P.E.
President
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Stephen A. Gude, P.E.
projeC~Ma~
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Michael D. Lucas, E.I.T.
Water Resources Specialist
METRO (214) 263·7270 1502 HOUSTON STREET' GRAND PRAIRIE' TEXAS' 75050 FAX (214) 264·9935
TABLE OF CONTENTS
Page No.
E. Executive Summary
J. Introduction
A. Authorization and Purpose of Study 1-1
B. Description of Study Area 1-1
C. History of Watershed Management 1-2
D. Input from Interested Parties 1-3
E. Criteria for Plan 1-4
F. Regulatory Constraints 1-5
II. Study Procedures 11-1
III. Data Acquisition/Availability
A. Mapping 111-1
8. Related Studies 111-1
C. Field Observations 111-2
D. Soils Information 111-3
E. Rain Gaging 111-3
F. Stream and Lake Gaging 111-3
G. Computer Models 111-3
H. Other Data 111-3
IV. Environmental Considerations
A. Purpose IV-1
B. Scope of Investigations IV-1
C. Results of Investigations IV-1
D. Limitations IV-14
V. Hydrology
A. Purpose V-1
B. Model Development V-1
C. Calibration V-2
D. Synthetic Storms V-3
E. Program (HEC-1) Capabilities and Limitations V-3
F. Model Capabilities and Limitations V-4
VI. Reservoir Operations
A. Purpose VI-1
B. Data Sources VI-2
C. Model Development VI-2
D. Calibration VI-3
E. Synthetic Storms VI-8
F. Program (HEC-5) Capabilities and Limitations VI-8
G. Model Capabilities and Limitations VI-9
VII. Alternatives Considered
A. Non-Structural VII-1
B. Structural VII-4
VIII. Proposed Alternative
A. Description of Improvements VIfI-1
B. Modeling Procedures/Lim itations VIII-10
C. Results VIII-14
IX. Economic Analysis of Selected Alternative
A. Benefits IX-1
B. Costs IX-15
C. Benefit Cost Comparison IX-20
X. Plan Implementation
A. Introduction X-1
B. Purpose of West Fork Commission X-1
C. Entities Involved X-1
D. Planning Function of WFC X-3
E. Technical Function of WFC X-3
F. Fiscal Function of WFC X-3
G. Proposed Organizational Structure of West Fork Commission X-4
XI. Recommendations XI-1
XII. Acknowledgements XII-1
XIII. References XlfI-1
APPENDICES
1 Updated USGS 7.5 Minute Series Topographic Quadrangle Maps
2 Correspondence from Interested Parties
3 Selected Environmental Correspondence
4 Railroad Commission of Texas Oil and Gas Well Location Maps
5 Hydrologic Calibration Data
LIST OF TABLES
Page No.
111.1 USGS 7.5 Minute Series Quadrangle Index 111-4
111.2 Generalized Soil Map Unit Index 111-5
111.3 Rainfall Gaging Stations 1/1-7
IV.1 CERCUS Sites - County Sequence by State IV-4
IV.2 Texas Municipal Solid Waste Facilities IV-7
VII.1 Lake Bridgeport Pertinent Data VII-2
VII1.1 Terms Used for Multi-Purpose Lakes VIII-4
VII1.2 Properties of Typical Minor Multi-Purpose Lake VIII-5
VII 1.3 Size Comparison for Single Major Multi-Purpose Lake VIII-9
VIII.4 EXisting Conditions Comparison - 1989 and 1990 Daily HEC-5 Models VIII-13
VII1.5 Summary of Results 1990 Flood VIII-15
VIII.6 Summary of Results 1981 Flood VIII-16
VIII. 7 Summary of Results for Synthetic Floods VIII-17
VII1.8 Peak Flow Comparison for Selected Locations - 1989 Flood -
Daily HEC-5 Model VIII-19
VIII.9 Peak Flow Comparison for Selected Locations - 1990 Flood -
Daily HEC-5 Model VIII-20
IX.1 Estimated Flood Damages - Wise County - Area Around Lake
Bridgeport IX-4
IX.2 Estimated Flood Damages - Wise County - West Fork and Adjacent
Portions of Big Sandy and Salt Creeks Below Lake Bridgeport IX-4
IX.3 Estimated Flood Damages - Wise County - Total Damages Included
in Analysis IX-5
LIST OF TABLES CONTINUED
IX.4 1989 Flood Damage Comparison for Index Locations Below Lake Worth IX-8
IX.S 1990 Flood Damage Comparison for Index Locations Below Lake Worth IX-9
IX.6 Summary of Benefits Included in Analysis IX-14
IX.7A Summary of Costs Considered in Analysis -- Scenario "AD IX-18
IX.7B Summary of Costs Considered in Analysis -- Scenario "B" IX-19
IX.8A Limited Benefit Cost Comparison - Lake Worth and Above -
Scenario "A" IX-21
IX.8B Limited Benefit Cost Comparison - Lake Worth and Above -
Scenario "8" IX-21
LIST OF FIGURES
Page No.
11.1 Study Procedures 11-3
VI.1 Lake Bridgeport Inflow Hydrograph for 1990 Flood VI-6
VIII. 1 Typical Minor Multi-Purpose Lakes VIII-3
VII 1.2 Features of Minor Multi-Purpose Lakes VIII-6
IX.1 1989 Flood Damage Reductions - Index Locations Below Lake Worth IX-10
IX.2 1990 Flood Damage Reductions - Index Locations Below Lake Worth IX-11
X.1 Proposed Organizational Structure - West Fork Commission X-6
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LIST OF PLATES
1.1 Study Area Map
111.1 USGS 7.5 Minute Series Quadrangle Index Map
111.2 Generalized Soils Map
111.3 Rain Gage Locations
111.4 Stream and Lake Gage Locations
IV.1 Railroad Commission of Texas 7.5 Minute Oil and Gas Well Location Index Map
IV.2 Operating and/or Permitted Hazardous Waste Disposal Facilities
IV.3 Interim Status and Permitted Hazardous Waste Storageffreatment Facilities
IV.4 Hazardous Waste Incineration Facilities
IV.5 Surface Mine Locations
IV.6 Sewage Treatment Plant/Disposal Facility and TWC Permitted Waste Water
Discharge (Wise County Only) Locations
IV.7 Cemetery Locations
IV.B National Grassland Locations
IV.9 National Wetland Locations
IV.10 State of Texas Significant Stream Segments
V.1 HEC-1 Calibration Areas
VI.1 HEC-5 Control Point Locations
VI1.1 SCS Lake Locations
VIII. 1 Hypothetical Reservoir Location Map
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EXECUTIVE SUMMARY