UFC 4-213-02
19 June 2003
Table 4 Norfolk Naval Shipyard Drydock No. 1
Date Completed
Suitable for Docking
Foundation
Construction Material
1833
Service Craft
Piles
Granite
Closure
Caisson, steel (rectangular box type).
Dewatering Pumps
One 42", 600 hp, 45,000 gpm; one 42", 600 hp, 50,000 gpm;
one 42", 800 hp, 96,000 gpm (Drydock No. 2 pumphouse)
Time to dewater: 40 min.
Drainage Pumps
Two 12", 125 hp, 9,000 gpm (Drydock No. 2 pumphouse);
One 6", 60 hp 1000 gpm.
Through caisson. Time to flood: 90 min
Captstans
4 total: 1 at head, 30 fpm at 30k; 1 each side of entrance,
30 fpm at 12k; 1 south side at head, 30 fpm at 30k
NNSY Dock Crane Capacities and Heights over Drydocks
Max Ht above Comments
Dock
Hook
Max Cap @ 5'
top of rail with
Cranes
Beyond dock
hook @ dock
center line
center line
long/short tons
29,30,31,32 Main
53.6/60
149'
Centerline of crane rails to
33,34
Whip
13.4/15
165'
centerline of
Drydock 1 = 66'8 "
Ship and Industrial Services Furnished at Dock
Electrical
Volts
Amp
Ac, 3 Ph, 60 Hz
460
1,200
3 south side at 400 amps
Fresh water___________6" mains, 300 gpm at 50 psi, one 2-1/2" outlet each side
Saltwater __________ 6" north side main, 850 gpm at 150 psi, three 2-1/2" outlets
and one 4" outlet north
Fire Protection ________Same as saltwater
Compressed Air______ 4" main, 1,600 cfm at 100 psi, sixteen 2" outlets south side
Steam________ ______ None
Sanitary sewer_________None
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