USS Castle Rock (AVP-35)

Name
USS Castle Rock
Hull designation
AVP-35
Vessel class
Barnegat
Evidence tier
Tier 2
Evidence entries
14
Record ID
uss-castle-rock-avp35
Dataset version
2026.10.12-rc.1
Canonical URL
https://asbestosatlas.org/ships/uss-castle-rock-avp35

Evidence

14 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-14).

  1. [1]research packet dy-packet.md (1 sources cited) [nhhc_danfs]
    Finding type
    vessel_history
    Finding
    Identity packet verdict: VERIFIED — real identity: USS Castle Rock. Hull: AVP-35. Designation: AVP (small seaplane tender). Class: Barnegat — https://www.ibiblio.org/hyperwar/USN/ships/dafs/AVP/avp35.html [mirror]
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Evidence ID
    uss-castle-rock-avp35-pkt-dy-packet-md
  2. [2]Dictionary of American Naval Fighting Ships, 'Castle Rock' (Vol. II, 1963, p. 51), Naval History Division; ibiblio/HyperWar transcription of the official DANFS text [nhhc_danfs]
    Locator
    DANFS entry, full text (characteristics line, construction, operations); live history.navy.mil DANFS page returned 404 on 2026-09-26 (standing NHHC link rot); NHHC aviation-squadrons appendix corroborates milestone dates
    Finding type
    vessel_history
    Finding
    Castle Rock (AVP-35), a Barnegat-class small seaplane tender named for an island off the Alaskan coast, was launched 11 March 1944 by Lake Washington Shipyards, Houghton, Washington; sponsored by Mrs. R. W. Cooper; and commissioned 8 October 1944, Commander G. S. James, Jr., in command. DANFS characteristics: displacement 1,766 tons; length 310'9"; beam 41'2"; draft 13'6"; speed 18 knots; complement 215; armament 1x5". Departed San Diego 18 December 1944; arrived Eniwetok 28 January [1945].
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Study period
    1943-1948
    Population
    Ship's company (DANFS design complement 215)
    Limitations
    DANFS does not state a laid-down date for this hull (12 July 1943 appears only in secondary sources - logged in gaps). The printed '28 November 1944' departure for the Guam survey mission is internally impossible (the ship did not reach the theater until January 1945); NHHC's own Online Library summary dates the mission November 1945-January 1946 - discrepancy logged in gaps. No asbestos or materials content in the source.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-01
  3. [3]Dictionary of American Naval Fighting Ships, 'Castle Rock' (ibiblio/HyperWar transcription); mission dates as reconciled by the NHHC Online Library summary ('Between November 1945 and January 1946') [nhhc_danfs]
    Locator
    DANFS entry, operational narrative paragraphs; NHHC Online Library page: https://web.archive.org/web/20080108182816/http://www.history.navy.mil/photos/sh-usn/usnsh-c/avp35.htm
    Finding type
    vessel_history
    Finding
    World War II and immediate postwar service: escorted convoys between Saipan, Guam, and Ulithi until 20 March [1945]; then served as seaplane tender at Saipan supporting reconnaissance, search, and hunter-killer air operations while also performing local escort duty. From November 1945 to 5 January 1946 she sailed to Guam and transported a group assigned to study Japanese defenses on Chichi Jima and Truk, then returned to tender operations at Saipan. Departed Saipan 9 March 1946; arrived San Francisco 27 March 1946; decommissioned there 6 August 1946; loaned to the Coast Guard 16 September 1948.
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Study period
    1944-1948
    Population
    Ship's company (215 per DANFS) and embarked survey group
    Limitations
    Operational history only; contains no asbestos, insulation, or materials statement. The survey-mission year is carried from the NHHC Online Library summary (1945) because the DANFS text's '1944' is impossible in sequence - the printed discrepancy is flagged rather than silently resolved. DANFS lists no battle stars for this hull.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-02
  4. [4]Naval History and Heritage Command Online Library, 'USS Castle Rock (AVP-35), 1944-1948' (history.navy.mil ship page), via Internet Archive capture 2008-01-08 [other_primary]
    Locator
    Page narrative and photo captions 19-N-74574, 19-N-74575, 80-G-K-16186
    Finding type
    vessel_history
    Finding
    Disposition chain per the NHHC Online Library ship page: loaned to the Coast Guard September 1948 as cutter Castle Rock (WAVP-383, later WHEC-383); served out of Boston, Massachusetts, and Portland, Maine, primarily on weather-station duty for most of her Coast Guard career; transferred to South Vietnam as 'Tran Vinh Trong' [sic] in December 1971; became the Philippine 'Francisco Dagahoy' in April 1976; decommissioned June 1985. NHHC photo captions document the hull off Houghton, Washington, 6 October 1944 (19-N-74574, 19-N-74575, Measure 32 Design 2ax camouflage) and in Tanapag Harbor, Saipan, April 1945 (80-G-K-16186), all Bureau of Ships/U.S. Navy photographs held at the National Archives.
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Study period
    1944-1985
    Limitations
    Official NHHC content via archived capture (live NHHC page not located). NHHC prints the Vietnamese name as 'Tran Vinh Trong'; USCG Historian's file and Vietnamese sources read 'Tran Binh Trong' (HQ-05) - spelling discrepancy logged in gaps. Philippine-service commissioning date (1979 in secondary sources vs. April 1976 acquisition in NHHC) unresolved. No asbestos or materials content.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-03
  5. [5]U.S. Coast Guard Historian's Office, 'Castle Rock, 1948 - AVP-35; WAVP / WHEC-383' (uscg.mil/history/webcutters; sources cited: Castle Rock Cutter Subject File, DANFS Vol. II p. 51, LCDR J. P. Smith USCGR AVP listings, Scheina's U.S. Coast Guard Cutters & Craft 1946-1990), via Internet Archive capture 2008-10-01 [other_primary]
    Locator
    Full cutter-file page: particulars block (as of 1966), class history, ship's history narrative, photograph list, sources block
    Finding type
    vessel_history
    Finding
    U.S. Coast Guard Historian's Office cutter file: builder Lake Washington Shipyards, Houghton WA; call sign NBZF; commissioned USN 8 October 1944, loaned to Coast Guard 16 September 1948; commissioned USCG 18 December 1948; 'permanently transferred to USCG on 26 September 1948' [sic - year typo for 1966]; decommissioned 21 December 1971 and transferred to South Vietnam as Tran Binh Trong. Stations: Boston, Massachusetts, 18 December 1948-1967 (law enforcement, ocean station, search and rescue); Portland, Maine, 1967-1971. Notable operations: towed Finnish M/V Sunnavik 300 miles to safety March 1956; Guantanamo Bay service during the 1962 Cuban blockade; cadet cruises May 1963 and August 1965; rescued eight from sinking F/V Maureen and Michael 90 miles southwest of Cape Race 22-23 February 1967; Coast Guard Squadron Three, Vietnam, 9 July-21 December 1971. Particulars as of 1966: Fairbanks-Morse direct-reversing diesel main engines, 6,400 shp; full-load displacement 2,529 tons; 18.2 kts max sustained (8,000 nm); 10 kts economic (18,050 nm); complement 10 officers, 3 warrants, 138 men; radar SPS-51/SPS-29; sonar SQS-1; armament 1x5"/38 Mod D with Mk 52 director and Mk 26 fire-control radar, 2x81mm mortars, 2x.50-cal MG, 1xMk 10 ASW projector, 2xMk 38 torpedo tubes. Disposition: fled to the Philippines at the fall of South Vietnam; served as Francisco Dagahoy; 'laid up as non-operational in June 1985'; 'disposed of (scrapped?) in March of 1993.' The file's class note quotes a Coast Guard suitability assessment: workmanship on the Casco-class vessels 'generally quite superior to that observed on other vessels constructed during the war.'
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Study period
    1948-1971; disposition note to 1993
    Population
    USCG crew of 10 officers, 3 warrant officers, 138 enlisted (1966 particulars)
    Limitations
    Official USCG Historian's Office compilation; live history.uscg.mil returned 403 to automated fetch on 2026-09-26, so the archived uscg.mil capture is cited. The file itself prints 'permanently transferred to USCG on 26 September 1948' - internally inconsistent with the same line's 18 December 1948 USCG commissioning; 1966 is the correct year (see gaps). Final scrapping is stated with a question mark in the source and remains unconfirmed. No asbestos, insulation, hazmat, or abatement content.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-04
  6. [6]U.S. Coast Guard, 'W' Numbers, CG-09224 (James Flynn, March 2014; originally published in The Belgian Shiplover), media.defense.gov [other_primary]
    Locator
    W-numbers table: 'WAVP 383 Castle Rock to WHEC' row (p. ~6); retrieved via Internet Archive capture - live URL returned an edge-server access denial to automated fetch
    Finding type
    vessel_history
    Finding
    The U.S. Coast Guard 'W' Numbers list (CG-09224, compiled by James Flynn, last revised March 2014) records 'WAVP 383 Castle Rock to WHEC' - official confirmation of the hull's WAVP-383 designation and reclassification to WHEC.
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Study period
    1948-1971 designations
    Limitations
    Designation crosswalk only; no dates for the WAVP-to-WHEC change (the 1 May 1966 reclassification date comes from the cutter file and secondary sources) and no asbestos or materials content.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-05
  7. [7]U.S. Coast Guard Historian's Office, 'Cutter Accidents' table (Cutter Operations Division compilation, late 1990), uscg.mil/history/webcutters/CutterAccidents.asp via Internet Archive capture 2010-01-19 [other_primary]
    Locator
    Accident table, 1971 Castle Rock row
    Finding type
    vessel_history
    Finding
    USCG Cutter Operations Division accident table (compiled late 1990, presented verbatim by the Historian's Office): '1971 Operation Market Time: While in a yard period at [Singapore] a sea chest valve on board the CGC Castle Rock was improperly reinstalled, which effectively flooded an entire engine room. Two months for repairs.'
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Study period
    1971
    Population
    Engine-room crew and Singapore repair-yard workers during the casualty and two-month repair period
    Limitations
    Documents an engineering casualty during the Vietnam deployment, not any materials content; secondary accounts' stronger wording ('sank at the pier') is not supported by this official text and is not asserted. No asbestos statement.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-06
  8. [8]National Archives and Records Administration, Special List 44 - Named Vessels (vessel and station logbooks index) [other_primary]
    Locator
    Special List 44 alphabetical table, 'Castle Rock (AVP-35)' row
    Finding type
    historical_record
    Finding
    NARA Special List 44 (named-vessel Navy logbooks) indexes one Castle Rock (AVP-35) logbook span: 8 October 1944 - 30 June 1945.
    Verification
    verified
    Role
    archival_lead
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Study period
    1944-1945
    Limitations
    Index entry only; the logbook itself was not retrieved and its contents (including any materials or maintenance entries bearing on asbestos) are unknown. The indexed span ends 30 June 1945; later-war, postwar, and Coast Guard logbook custody for this hull is not covered by the indexed row.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-07
  9. [9]National Archives, Ship Plan Index (Cartographic) and 'Researching Asbestos aboard US Naval Vessel up through 1961' guided topic [other_primary]
    Locator
    Ship Plan Index, 'CASTLE ROCK' rows (NAIDs 153714270, 175668614, 175671435); asbestos guide https://www.archives.gov/research/military/navy/guided-topics/asbestos
    Finding type
    historical_record
    Finding
    NARA's Ship Plan Index identifies three drawing/plan series for this hull under successive designations: RG 19 (Bureau of Ships) Hull Series of Ship Engineering Drawings as AVP-35 (NAID 153714270); RG 19 microfilm as AVP-35 (NAID 175668614); and RG 26 Cutter Plans After 1915 as WHEC 383 (NAID 175671435). NARA's asbestos research guide identifies RG 19 correspondence, insulation and lagging drawings (S39 file code), and general information books as the research path for shipboard asbestos questions.
    Verification
    verified
    Role
    archival_lead
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Study period
    1943-1971 records
    Limitations
    The index identifies record series, not particular asbestos drawings, and no plan, information book, or correspondence file was retrieved; whether any of these records documents asbestos aboard this hull is unknown until surveyed. Index coverage under AVP-35 and WHEC-383 designations reflects the ship's multi-service career; a WAVP-383-designated series was not located in the index.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-08
  10. [10]U.S. Government Accountability Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (18 October 1979), including Department of the Navy response [gao]
    Locator
    PDF pp. 10-11 (Navy response); GAO highlights
    Finding type
    historical_record
    Finding
    The 1979 GAO report describes asbestos thermal insulation, gaskets, packing, deck materials, cabling, and other applications across Navy ships and summarizes Navy removal policy in the 1970s.
    Verification
    verified
    Role
    context
    Documentation level
    class_or_era
    Accessed
    2026-09-26
    Study period
    1970s reporting on earlier decades
    Population
    Navy shipyard workers and ship crews (program context)
    Limitations
    Navy-wide program-level document; does not name AVP-35 or any Barnegat-class hull, identifies no product installed aboard this ship, and postdates both her Navy service (ended 1946) and her Coast Guard service (ended 1971). gao.gov returns HTTP 403 to automated fetch; the canonical URL is cited per prior-batch disposition with content confirmed via indexed excerpts. Listed product categories are research context only and are not entered as documented hull products.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-09
  11. [11]Naval Sea Systems Command, FOIA Electronic Reading Room - Asbestos Related Files (Navy qualified-products list summaries) [other_primary]
    Locator
    Reading-room table of asbestos-related QPL records with date spans; direct fetch returned HTTP 403 (Akamai edge block) on 2026-09-26 - table contents confirmed via search-indexed page text
    Finding type
    historical_record
    Finding
    NAVSEA's FOIA electronic reading room lists Navy qualified-products specifications (QPLs) in force during the hull's construction and service era for asbestos shipboard materials, including: Insulation Felt, Thermal, Asbestos Fiber (QPL-15091, 1962); Gaskets, Metallic-Asbestos, Spiral-Wound for boilers (QPL-15342 series, 1961-1974) and for flanged piping joints (QPL-16265, 1961); Packing, Asbestos Rod, High Pressure (QPL-17340 series, 1953-1968; QPL-33-P-16, 1950-1960); Asbestos Sheet, Compressed gasket material (QPL-17472 series; QPL-46 series, 1952-1981); and shipboard boiler safety valves (QPL-17462, 1953-1970).
    Verification
    verified
    Role
    context
    Documentation level
    class_or_era
    Accessed
    2026-09-26
    Study period
    1950-1981 specification dates
    Population
    Navy construction/repair trades and crews (specification-era context)
    Limitations
    Specification-level records: they establish which asbestos material categories the Navy qualified for shipboard use during this hull's era, not what was installed aboard AVP-35. No hull-specific document for this vessel appears in the reading room list. Does not establish presence, quantity, location, or individual exposure.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-10
  12. [12]U.S. Coast Guard ALCOAST 364/17 (COMDTNOTE 6010, 22 Dec 2017); HSWLSC Technical Directive 2017-009; USCG Deputy Commandant for Mission Support page, 'Information for Coast Guard Veterans and Retirees Filing for VA Disability Compensation Due to Asbestos- and Lead-Related Health Effects' [other_primary]
    Locator
    ALCOAST 364/17 full text (internet-release-authorized distribution via GovDelivery); DCMS page https://www.dcms.uscg.mil/Our-Organization/Assistant-Commandant-for-Human-Resources-CG-1/Health-Safety-and-Work-Life-CG-11/Office-of-Health-Services-CG-112/Asbestos-Lead-Health-Effects/ (403 to automated fetch; content confirmed via search-indexed text)
    Finding type
    regulatory
    Finding
    ALCOAST 364/17 (22 December 2017, COMDT COGARD) states that Coast Guard military members 'assigned to cutters that were constructed prior to 1991 may have been exposed to very low levels of asbestos and lead,' referencing Technical Directive HSWLSCTD 2017-009 (14 December 2017) for the cutter list, and directs medical documentation of these potential exposures into Service Treatment Records to facilitate VA disability claims. The Coast Guard DCMS page for asbestos/lead VA claims describes routine exposure as 'working on and berthing in a Coast Guard cutter where there may be small exposed areas of asbestos-containing thermal insulation, a number of torn asbestos-containing floor tiles, and lead dust from lead ballast ingots and lead-containing paint,' with exceptional exposures during maintenance such as tearing up asbestos-containing floor tile without protection.
    Verification
    verified
    Role
    context
    Documentation level
    class_or_era
    Accessed
    2026-09-26
    Study period
    2017-2018 documentation program; exposure context pre-1991 construction era
    Population
    Coast Guard cutter crews (program context; this hull's USCG service predates the documented window)
    Limitations
    Official Coast Guard acknowledgment of asbestos-containing thermal insulation and floor tiles aboard pre-1991 cutters - a program-level statement naming no individual cutter. The TD's documented cutter list is limited to cutters 'in service from 1990 to 2017' (DCMS page heading); Castle Rock left Coast Guard service in 1971 and is outside that window, so this record does not establish asbestos aboard this hull. Does not establish quantity, location, condition, individual exposure, or causation.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-11
  13. [13]Batch-3067 search ledger (this record): NHHC DANFS (ibiblio mirror) + NHHC aviation appendix + NHHC Online Library (archived); USCG Historian's Office cutter file, W-Numbers list, Cutter Accidents table; NARA Special List 44 + Ship Plan Index + asbestos research guide; GAO HRD-80-2; NAVSEA asbestos reading room; USCG ALCOAST 364/17 + DCMS asbestos page; CourtListener authenticated opinion query [other_primary]
    Locator
    search_ledger rows sl-uss-castle-rock-avp35-01 through -12
    Finding type
    historical_record
    Finding
    No ship-specific asbestos record located: no asbestos survey, material schedule, abatement record, condition survey with hazmat content, or docketed case naming Castle Rock (AVP-35 / WAVP-383 / WHEC-383 / Tran Binh Trong HQ-05 / Francisco Dagohoy PF-10) was found in the public sources searched - the DANFS entry, NHHC Online Library page, and USCG Historian's Office cutter file contain no asbestos or insulation-material statement; NARA public indexes, GAO HRD-80-2, the NAVSEA asbestos reading room, and the USCG ALCOAST/TD documentation contain no hull-specific entry; the completed CourtListener name+asbestos opinion query returned only name collisions (see search_ledger).
    Verification
    verified
    Role
    negative_finding
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Study period
    2026-09-26
    Limitations
    Absence of a located public record does not prove absence of asbestos aboard: a 1943-44 wartime-built diesel-driven auxiliary is era-consistent with installed asbestos-containing materials, and unexamined NARA plans, logbooks, and the USCG Cutter Subject File could hold hull-specific material records. A former-crew comment on a Coast Guard history blog recalls 'asbestos covered piping' on the ex-Navy 311s including Castle Rock - firsthand but unofficial and therefore not carried as evidence. Does not establish presence or absence; does not establish or defeat any exposure claim or legal eligibility. CourtListener sweep partially completed - see ev-13 limitations.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-12
  14. [14]CourtListener API v4 opinion search (authenticated via cl-auth-search.py): query '"Castle Rock" asbestos', 2026-09-26; exemplar collisions at opinions 5345250, 3201331, 7329321, 4539692, 773121, 6771649, 9400930, 7327556, 8524417, 4264240 [court_record]
    Locator
    search_ledger rows sl-uss-castle-rock-avp35-09 through -12
    Finding type
    litigation_documented
    Finding
    CourtListener authenticated API v4 opinion search for "Castle Rock" qualified with asbestos returned nine hits, all classified as name collisions, not qualifying asbestos litigation: Town of Castle Rock/CIRSA and Industrial Claim Appeals Office v. Town of Castle Rock (Colorado municipal workers' compensation, 2013-2016); Hirsch v. City of N.Y. (S.D.N.Y. transfer order, 2018); Bellinger v. Bowser (D.D.C. 2018); Allied Erecting & Dismantling v. USX (3d Cir. 2001); Advanced Systems Technology v. United States (Fed. Cl. 2006); Cassirer v. Thyssen-Bornemisza Collection (9th Cir. 2023); Babino v. Gesualdi (E.D.N.Y. 2017); Paloian v. LaSalle Bank (In re Doctors Hospital) (Bankr. N.D. Ill. 2013); City of Plainview v. Ferguson (Tex. Crim. App. 2015). None names USS Castle Rock, AVP-35, WAVP/WHEC-383, or any vessel; the collision universe is large (Colorado town, Washington city, bank, film/production and construction companies share the name).
    Verification
    partial
    Role
    context
    Documentation level
    context_only
    Accessed
    2026-09-26
    Study period
    2026-09-26
    Limitations
    Sweep incomplete: the completed asbestos-qualified opinion query found only collisions, but exact-name ("USS Castle Rock" / "USCGC Castle Rock"), hull-number ("AVP-35" / "WAVP-383" / "WHEC-383"), and all docket (type=r) queries were refused by the helper's shared fleet-wide pacing limiter and remain pending - this row cannot establish absence of litigation naming the hull. Collision risk is elevated because 'Castle Rock' is a place name shared by a Colorado town, a Washington city, and several corporations. No anonymous CourtListener request was made.
    Atlas source
    true
    Evidence ID
    ev-uss-castle-rock-avp35-13

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