C o n s t r u c t i o n and R e h a b i l i t a t i o n H i s t o r y
1984
I t a p p e a r s t h a t u s e of t h e p l a s t i c f i l t e r fabric i n t e s t s e c t i o n s
t o s e p a r a t e s h e l f materials has had l i t t l e , i f a n y , e f f e c t i n
(cont.)
r e t a r d i n g t h e r a t e of j e t t y s e t t l e m e n t . The west j e t t y was b r o u g h t
up t o
NGVD w i t h a 1 4 - f t crown w i d t h and
s i d e s l o p e s . The
e a s t j e t t y was b r o u g h t up t o
f t NGVD w i t h a 4 - f t crown w i d t h and
s i d e s l o p e s . Cost of t h e r e p a i r s was 2,000 w i t h 22,100 t o n s
of g r a d e d s t o n e ( 5 , 0 0 0 - l b maximum) placed on t h e east j e t t y and
t o n s o f g r a d e d s t o n e ( 1 , 5 0 0 - l b maximum) p l a c e d on t h e west
jetty.
17