Page:Operation Crossroads 1946.pdf/315

 USS Conyngham (DD-371) 31 July

1907

1 August

USS Cortland ( A P A - 7 5 )

Radiological conditions were such that workpartiescouldbeputaboardfor limited periods of time to carry out local, intensive decontamination work. The decontamination party came on board Conynqhamfortheallowed4hoursto scrub the top decks.

17AugustConynqhamdeclaredradiologicallysafe for reboarding (Reference4 ).

€or Kwajalein Atoll.

22 August Left Bikini

23AugustArrivedatKwajalein.

28 AugustDepartedforPearlHarbor. 5

2 August

Conynqham scrubbed and hosed down. The hullandthewaterlinewereslightly higher than average.

3 August

scrubbing and hosing of Conynqham was or flaked continued.chippingrusted paint areas was begun, and its hull was scrubbed with lye water and diesel oil (Reference 4).

September 0921ArrivedatPearlHarbor.

11 October 1253Leftfor

San Francisco.

17 October Arrived at San Francisco. USS CORTLANO ( A P A - 7 5 )

2000

Boarded by the BuShips inspection partfes Crew S l z e : 89 and declared Geiger sweet (below 0.1 rem B l k l nA l t o lA l r r l v a l 3: 0 g m a / 2 4 hours.

4 August

Marine growth from Conynqham's port waterline was scrubbed.

6 August

Took readings of ship (Reference 4).

7 August

Crew returned to Bottineau each night except for engineering watch (Reference 4).

Hay 1946 B l k l nAl t o lDl e p a r t u r e : 19 August 1946 Crew L o c a t l o nf oSr h o t ABLE: USS Artemls(AKA-21) Crew L o c a t l o nf oSr h o t BAKER: A r t e m l s Shot ABLE L o c a t l o n 3:, 1 4 0y a r d s( 2 . 9 km) WSW Shot BAKER L o c a t l o n : 3,870 yards ( 3 . 5 km) WSW O e c o n t a m l n a t l oLno c a t t o n : San F r a n c l s c o 6 November 1946 O p e r a t i o n aCl l e a r a n c e : F l n aCl l e a r a n c e1:6 December 1946 Oecomnlssloned30 December 1 9 4 6 .N o r f o l k ,V l r g l n l a Scrapped31March1948

7 Radiological readings for Conynqham (31 July through August) are listed in Table A.3.

Task U n l t and F u n c t l o n

transport. was a target vessel Cortland, an attack during CROSSROADS.Its crew was evacuated for each shot. It served in Transportation Division 92 of TU 1.2.6 (Merchant Type Unit).

T a b l eA. 3R. a d l o l o g l c arle a d l n g s( R / 2 4h o u r s ) , USS Conynqham ( 0 0 - 3 7 1 ) ( 3 1 J u l y through 7 A u g u s t ).

Shot ABLE ( 1J u l y 0, 9 0 0 ) Oa t e

Maximum Average Topslde Topslde Below

3 1J u l y 1 August 2 August 4 August 6 August 7 August

0.5 0. 3!ja

0.3 0.25a

0.4 0.3 0.12 0.07

0.15 00. 0. 084 0.045

0.045

Maxtmum

Average Be 1 ow

0.15 --_b 0.5 0.3 0.13 0.12

1 July 1402Firewasreportedaboardship(Reference 5. p. B-11). 1619CortlandreportedGeiger sweet.

0.05

"_

2 July 1440Theinitialboardinqteamreturnedto Cortland. 1831 Remainder of the crew returned and normal routine on board was resumed.

0.05

0.02

0.02

Notes: a A f t e rd e c o n t a m l n a t l o ne f f o r t s.

A 16 July damage report stated that there was no major damage and no need for an examination by the technical staff of the Director of Ship Haterial.

bNo r e a d i n g.

Shot BAKER ( 2 5 J u l y ,0 8 3 5 )

Source: Reference

8 August

4.

24 July 0950

Theradsafeinspectionpartydeclared Conynqham safe for reboarding: all personnel moved on board and painting of the ship began (Reference 4).

All personnel evacuated to Artemis.

25 July 1142Cortlandclearedforboarding. 1309ReportedGeigersweet. 2312 Declared radiologically free (Reference 5. pp. D-19 and D-12).

12 August Clearance was revoked and all personnel were evacuated to USS Rockbridge (APA228) on a 12-hour basis (Reference 4).

29 Julv 1305

16 August Interior and exterior painting of Conyngwas completed (Reference4 ).

30 July Cortland crew returned: normal routine resumed.

310

Team A and B reboarded Cortland (Reference 5. p. V1-D-37).