Table 31 



Umpqua River 



Reedsport, Oregon 



Date(s) Construction and Rehabilitation History 



1916- Local interests constructed the north Jetty to 3,390 ft. 

 1919 



1922 The project was adopted for extending the north Jetty to 7,500 ft. 



1923- The north Jetty was extended to 6,495 ft. The project was suspended 

 1926 due to lack of funds. 



1928- The north jetty was extended to 8,000 ft. 

 1930 



1930 The short south Jetty was authorized. 



1931 The north Jetty maintenance work required 35,752 tons of stone. 



1933- The south Jetty was constructed. 

 1934 



1935 The 1,700-ft extension to the south Jetty was authorized. 



1937- The south Jetty extension was completed, terminating in a monolithic 

 1938 concrete block 46 ft long by 30 ft wide by 16 ft high, flanked by 



four wing blocks each 18 ft long by 14 ft wide by 8 ft high and two 

 end blocks each 20 ft long by 14 ft wide by 8 ft high. 



1940 The shore end of the south Jetty was extended 550 ft to high ground. 

 The seaward end of the south Jetty was beaten down or settled into a 

 sand base to mlw for about 400 ft. 



1941 The seaward 1,000 ft of the south Jetty was beaten down or settled 

 into the sand base to mlw. 



1941- The outer 4,000 ft of the north Jetty was rehabilitated with 



1942 90,358 tons of stone, and a concrete cap was placed on the outer 

 3,977 ft of Jetty, requiring 28,291 cu yd of concrete. The crest of 

 the concrete cap was at elevation +14 ft mllw. 



1946- The hydraulic model study at WES recommended construction of a train- 

 1948 ing jetty. 



I95O- The training jetty (4,240 ft long) was constructed parallel to and 

 1951 along the south side of the entrance channel. 



(Continued) 

 136 



