UFC 4-213-02
19 June 2003
Table 7 Norfolk Naval Shipyard Drydock No. 4
Date Completed
Suitable for Docking
Foundation
Construction Material
1919
CV, SSN
Earth
Concrete
Closure
Caisson, steel (hydrometer type).
Dewatering Pumps
One 54", 1,250 hp, 330,000 gpm; Pumps one also used
for Drydock No. 6 and 7. Time to dewater: 180 min
Drainage Pumps
Two 12", 200 hp, 10,000 gpm. Pumps also used
for Drydock No. 6 and 7
Through culverts. Time to flood: 135 min
Captstans
13 total: 1 at head, 1 each side of entrance, 1 at Berths 19
and 20, 5 north side, 4 south side, 30 fpm at 30k; and 1
south side, 30 fpm at 12K
NNSY Dock Crane Capacities and Heights over Dyrdocks
Comments
Max Ht above
Dock
Hook
Max Cap @ 5'
top of rail with
Cranes
Beyond dock center
hook @ dock
line long/short tons
center line
Centerline of crane rails
140'
53.6/60
Main
29,30,31,32
to centerline of
158'
13.4/15
Whip
33,34
Drydock 3 = 80' 8 "
Distance from the Center
of Rotation of Stiffleg
182'
147.3/165
Main
Stiffleg
Derrick to Centerline of
214'
Auxiliary 13.4/15
Derrick
Drydock 4 = 133' 9 "
(Fixed
Location)
Ship and Industrial Services Furnished at Dock
Electrical
Volts
Amp
Ac, 3 Ph, 60 Hz
460
8,000
Thirty seven north side and
nineteen south side at 400
amps
Fresh water__________6" mains, 2,100 gpm at 50 psi, fourteen 2-1/2" outlets each
side
Saltwater __________ 12" mains, 7,000 gpm at 150 psi, south side fourteen 4" and
Six 2 "; north side twelve 4" and four 2 "
Fire Protection ________Same as saltwater
Compressed Air______ 6" mains, 10,000 cfm at 100 psi, sixteen two 2" outlets each
side
Steam________ ______ 6" mains, 30,000 phr at 100 psi, north side twenty two 2"
And south side sixteen 2"
CHT sewer___________8" and 10" mains, north side twenty 4" and south side
Sixteen 4"
18
Previous Page
