Table 32 



Yaquina Bay 



Newport, Oregon 



Dabe(3) Construction and Rehabilitation History 



1880 The original project was authorized. 



1895 The original project was completed, including two high-tide rubble- 

 mound Jetties. The north Jetty was 2,300 ft long, the south Jetty 

 was 3,600 ft long, and the ends were separated by 1,000 ft. 



1919 Restoration and extension of the Jetties was authorized. 



1921 An extension of the south Jetty to 5,800 ft was completed. An 800-ft 

 spur dike and 5 groins were added to the channel side of the south 

 Jetty. 



1930 An extension of the north Jetty to 3,700 ft was completed. 



1933- The outer 2,200 ft of the north Jetty and 2,700 ft of the south Jetty 

 1934 were restored to project heights. The estimated stone required was 

 47,000 tons of class "A" and 23,000 tons of class "B" and "C" com- 

 bined for the north Jetty, and 62,000 tons of class "A" and 

 48,000 tons of class "B" and "C" combined for the south Jetty. Class 

 "A" stone averaged 9 tons with a minimum weight of 6 tons; class "B" 

 stone averaged 2.5 to 3 tons with a minimum weight of 1 ton. Stone 

 was placed by dumping from a tramway. 



1937 A 1,000-ft extension of the north Jetty was authorized. 



1939- The north Jetty was rehabilitated and extended 1,000 ft. The work 

 1940 required an estimated 180,000 tons of stone and 6,018 cu yd of con- 

 crete for a terminal cap. Class "A" stone weighed between 6 and 

 25 tons and averaged 10 tons, and class "B" stone weighed between 1 

 and 6 tons and averaged 2.5 to 3 tons. Stone was placed by dumping 

 from a tramway. 



1948 Two breakwaters were constructed for a small-boat basin at Newport. 

 The detached breakwater was 2,650 ft long, and the shore wing was 

 400 ft long. Both Jetties were timber, pile, and stone construction 

 to +14 ft mllw. A cross section of the breakwaters is given in 

 Figure 65. 



1956 The north Jetty was rehabilitated using an estimated 220,000 tons of 

 stone. Class "A" stone weighed more than 6 tons and averaged 

 10 tons; class "B" stone weighed between 1 and 6 tons and averaged 

 3 tons. The stone was placed by dumping from a hauling vehicle. 

 Select class "A" stone weighing up to 20 tons was used for the 

 terminus . 



(Continued) 

 139 



