Table 26 (Concluded)
Construction and Rehabilitation History
required an estimated 66,900 tons of class
stone, 104,000 tons of
1981
40,300 tons of core stone, and 10,500 tons of bedding
class
(Cont)
stone. Class
stone had a minimum weight of 7.0 tons and an aver-
age weight of 9.3 tons; class
stone had a minimum weight of
4.2 tons and an average weight of 5.6 tons. All weights were based
on a unit weight of 170 pcf. Stone placement during construction was
not as precise as desired due to inexperience of the contractor.
However, the stones were sufficiently overweight that the jetties
should be stable.
The harbor and cross sections of the jetties are illustrated in
Figure 57. Site layout of Nehalem Bay, Oregon (revised
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