UFC 4-213-02
19 June 2003
Table 6 Norfolk Naval Shipyard Drydock No. 3
Date Completed
Suitable for Docking
Foundation
Construction Material
1911
CGN, SSBN
Piles
Concrete and Granite
Closure
Caisson, steel (rectangular box type).
Dewatering Pumps
Pumphouse #2 - One 42", 600 hp, 45,000 gpm; one 42",
600 hp, 50,000 gpm; one 42", 800 hp, 96,000 gpm. Pumps
also used for Drydock No. 2 pumphouse).
Pumphouse #3 16", 125 hp, 8500 gpm; 12", 125 hp, 7000gpm
Time to dewater: 209 min
Drainage Pumps
Two 12", 125 hp, 9,000 gpm (Drydock No. 2 pumphouse).
Two 6", 40 hp, 1800 gpm (Drydock No. 3 pumphouse)
Through caisson. Time to flood: 135 min. Dewatering Pump
No. 2 (Drydock No. 2 pumphouse) used to superflood
Captstans
11 total: 1 at head, 30 fpm at 30k; 2 each side of entrance
(Total 4) 30 fpm at 30K; 3 north side at 30 fpm at 30k; 1 north
side 30 fpm at 12k; 2 south side 30 fpm at 30k
NNSY Dock Crane Capacities and Heights over Dyrdocks
Max Ht above top Comments
Dock
Hook
Max Cap @ 5'
of rail with hook
Cranes
Beyond dock
@ dock center
center line
line
long/short tons
29,30,31,32 Main
53.6/60
140'
Centerline of crane rails
33,34
Whip
13.4/15
158'
to centerline of
Drydock 3 = 80' 8 "
Ship and Industrial Services Furnished at Dock
Electrical
Volts
Amp
North side, 2 receptacles at the pad for 11.5kV/460V
600
11,500
Ac, 3 Ph, 60 Hz
portable substations, with connections for a 1-12
circuit turtleback dockside and with connections for a
1-11 circuit turtleback dockside.
14 North side; 26 south side at 400 ampls
8,800
460
Ac, 3 Ph, 60 Hz
Fresh water_______6" mains, 1,800 gpm at 50 psi, twelve 2-1/2" outlets
and one 4" outlet each side
Saltwater _______ 12" mains, 6,400 gpm at 150 psi, eight 4" outlets each side
Fire Protection ____Same as saltwater
Compressed Air___ 5", 6", an 8" mains, 15,000 cfm at 100 psi, twenty eight 2"
outlets each side. 4" headers at dock floor with seventeen
2" outlets each side
Steam________ ___6" mains, 30,000 pph at 100 psi, eight 2-1/2" north side;
sixteen 2 " south side
CHT sewer________8" mains, ten 4" inlets north side and sixteen 4" inlets south
side.
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