Home > 105th Congressional Documents > H.Doc.105-82 DEVELOPMENTS CONCERNING THE NATIONAL EMERGENCY WITH RESPECT TO IRAN ...H.Doc.105-82 DEVELOPMENTS CONCERNING THE NATIONAL EMERGENCY WITH RESPECT TO IRAN ...
105th Congress, 1st Session - - - - - - - - - - - House Document 105-81
LAS CRUCES, NEW MEXICO
__________
COMMUNICATION
from
THE ASSISTANT SECRETARY OF THE ARMY (CIVIL WORKS), THE DEPARTMENT OF
THE ARMY
transmitting
A REPORT ON THE FLOOD DAMAGE REDUCTION PROJECT FOR LAS CRUCES, NEW
MEXICO, PURSUANT TO PUB. L. 104-303, SEC. 101(A)(20) (110 STAT. 3665)
<GRAPHIC(S) NOT AVAILABLE IN TIFF FORMAT>
May 7, 1997.--Referred to the Committee on Transportation and
Infrastructure and ordered to be printed
105th Congress, 1st Session - - - - - - - - - - - House Document 105-81
LAS CRUCES, NEW MEXICO
__________
COMMUNICATION
from
THE ASSISTANT SECRETARY OF THE ARMY (CIVIL WORKS), THE DEPARTMENT OF
THE ARMY
transmitting
A REPORT ON THE FLOOD DAMAGE REDUCTION PROJECT FOR LAS CRUCES, NEW
MEXICO, PURSUANT TO PUB. L. 104-303, SEC. 101(A)(20) (110 STAT. 3665)
<GRAPHIC(S) NOT AVAILABLE IN TIFF FORMAT>
May 7, 1997.--Referred to the Committee on Transportation and
Infrastructure and ordered to be printed
C O N T E N T S
----------
Page
Letter of Transmittal............................................ v
Comments of the Office of Management and Budget.................. vii
Comments of the State of New Mexico.............................. viii
Comments of the Department of Interior........................... ix
Comments of the Federal Emergency Management Agency.............. x
Report of the Chief of Engineers, Department of the Army......... 1
Report of the District Engineer.................................. 5
Syllabus..................................................... 5
Section 1........................................................ 6
Introduction................................................. 6
Study Authority.............................................. 6
Purpose and Scope............................................ 7
Study Participants........................................... 9
Prior Studies and Reports.................................... 9
Section 2........................................................ 11
Study Area Description....................................... 11
Socio-Economic Characteristics............................... 11
History of the Area.......................................... 11
Physical Characteristics..................................... 12
Environmental Setting........................................ 14
Cultural Resources........................................... 15
Recreational Resources....................................... 16
Existing Flood Control Structures............................ 16
Section 3........................................................ 18
Problem Identification....................................... 18
Historical Flooding.......................................... 18
Hydrologic Analysis.......................................... 19
Hydraulic Analysis........................................... 23
Economic Analysis............................................ 29
Expected Future Without Condition............................ 33
Section 4........................................................ 34
Plan Formulation............................................. 34
Planning Objectives.......................................... 34
Planning Constraints......................................... 34
Plan Formulation and Rationale............................... 35
Technical Criteria........................................... 35
Economic Criteria............................................ 35
Environmental Criteria....................................... 37
Alternatives Investigated.................................... 37
Screening of Alternatives.................................... 43
Optimization of the Selected Plan............................ 45
Federal Interest............................................. 45
Special Cost Sharing or Windfall Benefits.................... 48
Description of the Selected Plan............................. 49
Real Estate Requirements..................................... 50
Mitigation Requirements...................................... 51
Operation, Maintenance, Repair, Replacement and
Rehabilitation............................................. 52
Recreation................................................... 52
Cost Sharing Requirements.................................... 52
Financial Analysis........................................... 53
Project Procedures and Implementation........................ 53
Project Accomplishments...................................... 54
Project Performance.......................................... 57
Section 5........................................................ 58
Conclusions.................................................. 58
Disclaimer................................................... 61
Sponsor's Letter of Intent....................................... 62
Public Comments.................................................. 65
Environmental Assessment......................................... 70
Fish and Wildlife Coordination Act Report........................ 91
Final Environmental Assessment................................... 92
LIST OF TABLES
Number
2-1 Population Growth of Las Cruces................... 11
2-2 Pertinent Features of the Las Cruces Dam.......... 17
3-1 Rainfall Amounts Used in Analysis................. 21
3-2 Impervious Coefficients........................... 22
3-3 Discharge and Volumes at Concentration Points..... 25
3-4 Flows and Manning's N--Flow Path 1................ 27
3-5 Flows and Manning's N--Flow Path 2................ 28
3-6 Flows and Manning's N--Flow Path 3................ 28
3-7 Flows and Manning's N--Flow Path 4................ 29
3-8 Flows and Manning's N--Flow Path 5................ 29
3-9 Value of Property Flooded by Event--All Flowpaths. 31
3-10 Number of Property Units Flooded by Event--All
Flowpaths........................................ 32
3-11 Mean Single Occurrence Damages by Land Use and
Flood Frequency--All Flowpaths................... 32
3-12 Average Annual Damages and Residuals by Land Use.. 33
4-1 Applicability of Non-Structural Measures.......... 39
4-2 Cost Per Structure for Non-Structural Alternatives 41
4-3 Total Costs--10 Year Non-Structural Measures...... 41
4-4 Benefits and Costs--Non-Structural Measures....... 42
4-5 Comparison of Structural Measures................. 44
4-6 Average Annual Damages and Benefits Including Risk
Adjusted Results................................. 46
4-7 Benefit/Cost Analysis............................. 46
4-8 Comparison of Costs and Benefits--Selected Plan... 48
4-9 Project Implementation Costs...................... 53
4-10 System of Accounts--Selected Plan................. 55
4-11 Project Performance............................... 57
LIST OF FIGURES
1-1 Vicinity Map--Dona Ana County, Las Cruces, NM..... 8
3-1 24-Hour Rainfall Event Summary.................... 20
3-2 Rainfall Hyetograph 1%-Chance Event............... 21
3-3 Determination of Manning's N Value................ 26
4-1 Optimization Curve................................ 47
LIST OF PLATES
1. Study Area and General Plan....................... 123
2. Flow Path Locations............................... 124
3. Pre-Project 100-Year Flood Plains................. 125
4. Selected Alternative--General Plan................ 126
5. Post-Project 100-Year Flood Plains................ 127
6. Sub-Area Concentration Points, Federal Interest... 128
<GRAPHIC(S) NOT AVAILABLE IN TIFF FORMAT>
Pages: 1 Other Popular 105th Congressional Documents Documents:
|
| GovRecords.org presents information on various agencies of the United States Government. Even though all information is believed to be credible and accurate, no guarantees are made on the complete accuracy of our government records archive. Care should be taken to verify the information presented by responsible parties. Please see our reference page for congressional, presidential, and judicial branch contact information. GovRecords.org values visitor privacy. Please see the privacy page for more information. |
 |