Preface 



A request to reactivate and conduct additional testing on the existing 

 Noyo River and Harbor model was initiated by the U.S. Army Engineer 

 District, San Francisco (SPN). Authorization for the U.S. Army Engineer 

 Waterways Experiment Station's (WES) Coastal Engineering Research 

 Center (CERC) to perform the study was subsequently granted, and funds 

 were authorized by SPN on 8 June 1992, 1 1 January 1993, and 15 Decem- 

 ber 1993. 



Model testing was conducted at WES intermittently during the period 

 from December 1992 through January 1994 by CERC personnel under 

 the direction of Dr. James R. Houston and Mr. Charles C. Calhoun, Jr., 

 Director and Assistant Director, CERC, respectively; and under the direct 

 supervision of Messrs. C. E. Chatham, Jr., Chief, Wave Dynamics Divi- 

 sion, and Dennis G. Markle, Chief, Wave Processes Branch (WPB). The 

 tests were conducted by Messrs. Hugh F. Acuff and Larry R. Tolliver and 

 Ms. Bettye E. Stephens, Civil Engineering Technicians, and Mr. Joe 

 Trahan, contract student, under the supervision of Mr. Robert R. 

 Bottin, Jr., Research Physical Scientist. This report was prepared by 

 Mr. Bottin. 



During the course of the investigation, liaison was maintained by 

 means of conferences, telephone conversations, and monthly progress 

 reports. Messrs. Jeff Cole and Joe Hooks, SPN, visited WES to observe 

 model operation during the course of the study, and Mr. Bottin visited the 

 SPN office and the city of Fort Bragg, California, prior to the initial 

 investigation. 



Initial test results for the model were reported in WES Technical Re- 

 port CERC-88-15, "Noyo River and Harbor, California, Design for Wave 

 and Surge Protection; Coastal Model Investigation," dated September 

 1988. Results for additional tests were reported in WES Technical Report 

 CERC-89-18, "Noyo River and Harbor, California, Design for Wave Pro- 

 tection, Supplemental Tests; Coastal Model Investigation," dated Decem- 

 ber 1989. 



Dr. Robert W. Whalin was Director of WES during model testing and 

 the preparation and publication of this report. COL Bruce K. Howard, 

 EN, was Commander. 



