REPORT DOCUMENTATION PAGE 



Form Approved 

 OMB No. 0704-0188 



Public reporting bunlen for this cdlectioo of information is estimatBd to average 1 1mur per response, including the time for reviewing instnjctions, searching existing data sources, gathering 

 and maintaining the data needed, and completing and reviewing the collsction of infonnation. Send comments piogarcBng this burden estimate or any other aspect of this collection of 

 information, indudmg suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Infomiatior Operations and Reports, 1215 Jetfereon Davis Highnvay, 

 Suite 1204, Arlington, VA 22202-4302, andtotheOfficeofManagemenland Budget, PapenwoikReduclion Proiect (0704^188), Washingtoo,DC 20503. 



1. AGENCY USB ONLY (Leave blank) 



2. REPORT DATE 



January 1998 



3. REPORT TYPE AND DATES COVERED 



Final report 



4. TTTLE AND SUBTTTLE 



Mouth of the Colorado River, Texas Monitoring Program 



5. FUNDING NUMBERS 



MCNP Work Unit 221 13 



6. AUTHOR(S) 



David B. King, Terri L. Prickett 



7. PERFORMING ORGANIZATION NAME(S) AND AODRESS(ES) 



U.S. Army Engineer Waterways Experiment Station 

 3909 Halls Ferry Road, Vicksburg, MS 39180-6199 



& PERFORMING ORGANIZATION 

 REPORT NUMBER 



Technical Report CHL-98-2 



9. SPONSORINGMONrrORING AGENCY NAME(S) AND ADDRESS(ES) 



U.S. Army Corps of Engineers 

 Washington, DC 20314-1000 



10. SPONSORING/MONITORING 

 AGENCY REPORT NUMBER 



11. SUPPLEMENTARY NOTES 



Available from National Technical Information Service, 5285 Port Royal Road, Springfield, V A 22 1 6 1 . 



12a. DISTRIBimON/AVAILABIUTY STATEMENT 



Approved for pubUc release; distribution is unlimited. 



12b. DISTDIBUTION CODE 



13. ABSTRACT rAtenmum 200 ivords; 



This report provides an overview of the monitoring effort of the U.S. Army Corps of Engineers at the mouth of the Colo- 

 rado River, Texas. The report includes background information and objectives of the study, which were as follows: 



a. Evaluate the design and efficiency of the weir jetty and adjacent impoundment basin so that project maintenance 

 requirements and costs can be more accurately established. 



b. Develop and improve equations for computing longshore sediment transport in the vicinity of the Colorado River, 

 Texas. 



c. Determine which sediment transport equations work best in the surf zone. 



d. Collect data to aid m efforts to improve future designs of similar Corps projects. 



The report also includes data collection plans and procedures, data analysis, an evaluation of the project, and con- 

 clusions and recommendations. The data collection effort was divided into three main components: deployment of off- 

 shore directional wave sensors to obtain long-term, continuous wave, current, and water level information; intense, 

 short-term field experiments that principally collected sediment transport data in the surg zone; and bathymetry sur- 

 veys of the adjacent shorelines. 



14. SUBJECT TERMS 



Colorado River, Texas Surf zone 

 Longshort sediment transport Wave sensors 

 MCNP Program 



15. NUMBER OF PAGES 

 98 



16. PRICE CODE 



17. SECURfTY CLASSIFICATTON 

 OF REPORT 



UNCLASSIHED 



18. SECURITY CLASSIFICATION 

 OF THIS PAGE 



UNCLASSIFIED 



19. SECURrrV CLASSIFICATION 

 OF ABSTRACT 



20. UMITATION OF ABSTRACT 



NSN 7540-01-280-5500 



Standard Fonn 298 (Rev. 2-89) 

 Prescribed by ANSI Std. Z39-1B 

 298-102 



