Page:Operation Crossroads 1946.pdf/382

 USS

Pennsylvania ( 6 6 - 3 8 )

USS

Table A.9.

3 July

1600 Remainder of crew returned aboard. 5 July 1700Jettisonedtwo

Pennsylvania (BB-38)

Gelger readings aboard USS Pennsylvanla (68-38) b y shlp's company the f t r s t day o f reboardlng ( 8 A u g u s t 1946).

test OS2Uaircraft. Readlng (R/24 hours)

6 July 1026-1440 Conducted diving operations to check the underwater condition of the ship. Range Locatlon

Maxlmurn

Locatlon of Maxlmum

Shot B A K E R (25 J u l y, 0835)

25 July 0357 1408

27 July 1030 1400 1608

The last-minuteevacuationgroup was evacuated to Rockbridqe. CJTF 1 told Dsn to avoid Pennsylvania as radioactivity on board was sharp with 6. p. VII-Ihigh intensity (Reference 11-A). Pennsylvaniacleared for theinitial boarding team. Pennsylvania last-minute creume&rs aboardRockbridaeweretransferredto ClymeC. USS Reclaimer (ARS-42) passed Pennsylvania, which had a 25-minute tolerance.

Starboard, main deck aft

2.0 - 4.0

Port , maln deck aft

2.0 - 4.015.0

Port, starboard side o f forecastle

1.5

Superstructure deck

2.0 -Vegetable 4.0

Maln m a s t

3 August

was The after section of Pennsylvania washed down wlth foamite by salvage vessels.

8 August

0930

Deliver (ARS-23) reported having completed covering Pennsylvania with foam (Reference 6. p. VII-I-66-B).

m-

3.

work: continued decontamination work on from the weather decks with assistance workingpartiesfromtarget ships E Independence (CVL-22). USS Pensacola (CA24). USS Ruqford (DD-389). and USS Ralph Talbot (DD-390).

USS

Deliver was instructed to wash down sylvanla thoroughly using high-pressure streams and afterwards take Geiger readings from 50 feet (15 meters) on each side (Reference 6. p. VII-143-77).

18.0Scupper (waterways) generally had hot spots

Slightly >1.5

Pennsvlvania was reported to be slightly down by the stern with a slight starboard list.

1 August

0831

Plane

1.5

Source: Reference 31 July 1400

3.0

Yaterline. scuppers

locker, water accumulated

Foremast 28 July

-

10.0

1 1 August

All decontamination work on Pennsylvania was halted.

14 August Radiological monitors tested men been on Pennsylvania.

who had

16 August The air in the ice room on Pennsvlvania was found radiologically unsafe.The crew The first Pennsylvaniaboardingteam, returnedtoremannedtargetship along with the radiological monitors from Niaqara (APA-87). where Pennsylvania percomonenced a preliminary inspection. sonnel had been transferred for berthing Theradiologicalsurveyshoweda45and messing. minute to 2-hour tolerance on the weather decks. Geiger readings are presented in 17-21 August Working parties boarded Pennsylvania to Table A.9. Pumping and radlological deinspect and prepare i t for towing. contamination was carried on until 1700. at which time the ship was closed up and 21 Auaust the boarding team returned to Clymer. 1400 Pennsylvania underway in tow by USS Chow(ATF-100) for Kwajalein.Topside average 0.7 R/24 hours (Reference7). Boarding team worked on radiological decontamination and pumping of the after 24 August compartments. Canvas, manila.andcork 1100Pennsylvaniaarrived at Kwajalein. floats were removed from the topside, and the starboard side of the quarterdeck was29 AugustDecomnlssioned at Kwajalein. scrubbed in decontamination efforts. The boarding team returned to Clymer. 20 September Topside average 0.39 R/24 hours (Refecence 7 ).

e

Haven.

-_1

9 August 0845-1630

10 August 0840

=

The boarding team boarded PeMSVlVMia Pennsylvaniaunderwentradiologicalandstructural and commenced salvage and decontamination studies until 10 February 1948. W e n i t was sunk.

377