USS Choctaw (AT-70)

Name
USS Choctaw
Hull designation
AT-70
Vessel class
Navajo
Evidence tier
Tier 2
Evidence entries
4
Record ID
uss-choctaw-at70
Dataset version
2026.10.12-rc.1
Canonical URL
https://asbestosatlas.org/ships/uss-choctaw-at70

Evidence

4 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-4).

  1. [1]research packet crew-cs-packet.md (9 sources cited) [other_primary]
    Finding type
    vessel_history
    Finding
    Identity packet verdict: VERIFIED
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Evidence ID
    uss-choctaw-at70-pkt-crew-cs-packet-md
  2. [2]Wikipedia, 'USS Choctaw (AT-70)' (citing DANFS); Cherokee-class tugboat table [other_primary]
    Locator
    Infobox and service history section
    Finding type
    vessel_history
    Finding
    USS Choctaw (AT-70) was a Navajo-class fleet tug built by Charleston Shipbuilding and Drydock Company. Laid down 4 April 1942, launched 18 October 1942, commissioned 21 April 1943. Reclassified ATF-70 on 15 May 1944. Decommissioned 11 March 1947. Stricken 31 October 1977. Transferred to Colombia under the Security Assistance Program on 1 March 1978, renamed ARC Pedro De Heredia (RM-72). Served in Bermuda during WWII (convoy assembly, training).
    Verification
    partial
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-10-06
    Limitations
    Wikipedia is a secondary source citing DANFS; DANFS not directly accessible (NHHC blocking automated fetch). Facts cross-checked against Cherokee-class table (consistent). Does not establish asbestos-related facts.
    Atlas source
    true
    Evidence ID
    ev-uss-choctaw-at70-01
  3. [3]Corn & Starr, 'Historical perspective on asbestos: Policies and protective measures in World War II shipbuilding,' Am. J. Ind. Med. 11(3):359-373 (1987) [other_primary]
    Locator
    Abstract and article
    Finding type
    asbestos_application
    Finding
    WWII-era U.S. Navy shipbuilding used asbestos extensively as insulation and fireproofing. Diesel-electric fleet tugs of the Navajo class (built 1942-1943) would have contained asbestos in diesel exhaust insulation, engine gaskets and packing, winch/windlass brake linings, and electrical insulation, consistent with standard shipbuilding practice of the era.
    Verification
    verified
    Role
    context
    Documentation level
    class_or_era
    Accessed
    2026-10-06
    Limitations
    Era-level scholarly documentation of asbestos use in WWII shipbuilding; does not name this vessel and does not establish that asbestos was or remains aboard this hull, nor quantity, location, condition, exposure, or causation.
    Atlas source
    true
    Evidence ID
    ev-uss-choctaw-at70-02
  4. [4]CourtListener API v4, query 'USS Choctaw' type=opinion, 2026-10-06 [court_record]
    Locator
    Search results, count=2
    Finding type
    litigation_documented
    Finding
    CourtListener opinion search for 'USS Choctaw' returned 2 hits. First hit: Wells Ex Rel. Wells v. Radiator Specialty Co., 413 F. Supp. 2d 778 (S.D. Miss. 2006) - asbestos case. Whether USS Choctaw (AT-70) is specifically mentioned in the opinion was not verified (full text not retrieved). Second hit not reviewed (output truncated). Three of four base queries (docket, hull-number opinion, hull-number docket) did not complete due to fleet pacing/technical issues.
    Verification
    partial
    Role
    negative_finding
    Documentation level
    ship_specific
    Accessed
    2026-10-06
    Limitations
    Search completed but hits not fully classified - full opinion text not retrieved to verify vessel mention. The Wells case may involve a different Choctaw or be a false positive. Litigation-stage classification cannot be assigned without verification. Three base queries incomplete due to pacing.
    Atlas source
    true
    Evidence ID
    ev-uss-choctaw-at70-03

Attribution

Compiled by
Paul Danziger; Rod de Llano
Publisher
Danziger & De Llano, LLP
License
CC-BY-4.0
Citation
Danziger, P., and De Llano, R. (2026). AsbestosAtlas Navy Vessel Asbestos Exposure Dataset. Danziger & De Llano, LLP. DOI: not yet assigned
Dataset version
asbestosatlas-ships-2026.10.12-rc.1
DOI
not yet assigned