Crowley Tug Pathfinder; Bligh Reef, Prince William Sound, Alaska
NOAA initial notification: “On the evening of December 23, 2009, the tanker escort tug Pathfinder ran aground on Bligh Reef, Prince William Sound, Alaska. The vessel has 127,000 gallons of diesel on board. The center bottom tank, containing 22,000 gallons, is ruptured and an unknown amount has spilled. […]”[1]
Latest included source report
Posted 28 Dec 2009
Latest source report
“http://www.uscgalaska.com/go/doc/780/436063/ VALDEZ, Alaska - The tug Pathfinder was moored at Port of Valdez early Sunday morning after being safely towed from Busby Island in Prince William Sound, Alaska. Crews will begin to remove fuel from the vessel over the weekend. A limited amount of diesel fuel will remain on board in order to power ship systems while the vessel’s […]” Current outcome is not independently verified by seahazards.[7]
NOAA report chronology
7 dated source records · 23 Dec 2009 to 28 Dec 2009NOAA incident record opened
Initial notification excerpt: “On the evening of December 23, 2009, the tanker escort tug Pathfinder ran aground on Bligh Reef, Prince William Sound, Alaska. The vessel has 127,000 gallons of diesel on board. The center bottom tank, containing 22,000 gallons, is ruptured and an unknown amount has spilled. Bligh Reef was the site of the 1989 grounding and spill of the tanker Exxon Valdez. USCG has requested scientific support including trajectory of the spilled fuel oil.”
NOAA approximate incident area; not a vessel track
Initial incident area only. Dates are NOAA postings, not a vessel track. Playback advances every 5 seconds.
Milestone 1 of 7: 23 Dec 2009. NOAA incident record opened. NOAA approximate incident area; not a vessel track
NOAA incident record opened
Initial notification excerpt: “On the evening of December 23, 2009, the tanker escort tug Pathfinder ran aground on Bligh Reef, Prince William Sound, Alaska. The vessel has 127,000 gallons of diesel on board. The center bottom tank, containing 22,000 gallons, is ruptured and an unknown amount has spilled. Bligh Reef was the site of the 1989 grounding and spill of the tanker Exxon Valdez. USCG has requested scientific support including trajectory of the spilled fuel oil.”
NOAA approximate incident area; not a vessel track (60.838°, -146.882°)
USCG Press Release
Source report excerpt: “Office of Public Affairs U.S. Coast Guard Seventeenth District United States Coast Guard Date: Dec. 24, 2009 Contact: 907-321-4505 Petty Officer 3rd Class Charly Hengen News Release Coast Guard responding to tug grouding in Prince William Sound VALDEZ, Alaska – Coast Guard personnel from Marine Safety Unit Valdez, Sector Anchorage and Cutter Long Island are responding to a 136-foot Crowley tug grounding on Bligh Reef in Prince William Sound Thursday. The Pathfinder crew had completed an ice survey and was heading back to its port in Valdez when the vessel struck the reef Wednesday evening. Vessel Traffic System Prince William Sound personnel received a radio call at 6:15 p.m. from […]”
Second CG press release
Source report excerpt: “JUNEAU, Alaska – The Coast Guard, Alaska Department of Conservation, Crowley Marine, Ship Escort Response Vessel System and O'Brien's Group as part of the incident management team are responding to the earlier grounding of the 136-foot Crowley tug Pathfinder on Bligh Reef in Prince William Sound Wednesday evening. Two of the tug's center-line diesel fuel tanks were reported breached with potential spill of 33, 500 gallons. The total capacity of the vessel is approximately 127, 700 gallons of diesel fuel. A dive team transported by the vessel Alaska Challenger to conduct a hull inspection, reported extensive damage to the hull, including a 4-5 foot section of the keel missing. A barge is […]”
Pathfinder Sitrep.Thurs noon
Source report excerpt: “Pathfinder Sitrep: Dec. 24, 2009 noon 1. CAUSE OF SPILL: The tug had completed an ice survey and was headed back to port at the time of the grounding. The cause of the grounding is unknown at this time and is being investigated by USCG and ADEC. 2. RESPONSE ACTIONS : Spill containment boom was immediately deployed around the vessel. The initial visual survey did not indicate any damage to the sides of the hull. A sheen was observed coming from the keel coolers of the tug. The tug transited to Busby Island and is currently anchored at that location. R & R Diving Services was immediately dispatched to conduct an underwater survey to assess the damage. The underwater survey was completed at […]”
December 25 PM Unified Command press release
Source report excerpt: “Lightering begins on tug Pathfinder in Prince William Sound VALDEZ, Alaska – The Crowley tugboat Pathfinder remains at anchor south of Busby Island and surrounded by containment boom with spill responders staged nearby. After suspending lightering Friday morning, the unified command authorized restarting lightering diesel fuel from the Pathfinder’s two damaged fuel tanks. Lightering has commenced with good fuel flow as of 4:15 p.m. and is estimated to take between six and 12 hours. Over-flights earlier in the day identified a 50-foot by one mile sheen that extends south of the Pathfinder’s boom. The boom was temporarily compromised overnight. This afternoon responders have a secondary boom […]”
USCG Press Release Dec 27
Source report excerpt: “http://www.uscgalaska.com/go/doc/780/436007/ VALDEZ, Alaska – The tugboat Pathfinder has been safely towed to and moored at the Valdez Petroleum Terminal in the Port of Valdez at 12:56 a.m., Sunday. After a ten-hour approximately 20-mile transit through Prince William Sound, the Pathfinder is safely in Valdez. The return of the tug to Valdez further progresses the command’s goal of safely and efficiently bringing the incident to a successful conclusion. “Once the Pathfinder is secured at the pier, our next step it to assess the quantity of fuel recovered and lost,” said John Engles, field State on Scene Coordinator. “We will continue to address any potential impact to the environment.” […]”
USCG Press Release Dec 27
Source report excerpt: “http://www.uscgalaska.com/go/doc/780/436063/ VALDEZ, Alaska - The tug Pathfinder was moored at Port of Valdez early Sunday morning after being safely towed from Busby Island in Prince William Sound, Alaska. Crews will begin to remove fuel from the vessel over the weekend. A limited amount of diesel fuel will remain on board in order to power ship systems while the vessel’s damage is more fully assessed. The results of the today’s observation flight did not indicate any sign of fuel spilled during the vessel’s transit to Valdez. Crews are decontaminating boom and recovered fuel storage tanks so they can be returned to standby service in local oil spill response inventories. The Unified […]”
Share or embed this incident
Add a dated incident card to your article or website. It links readers to the complete timeline and original sources. The card contains no ads or tracking scripts.
Card preview
Open card ↗The card follows the automatically assembled NOAA timeline. Dates identify source postings, not necessarily event times; the latest report is not a verified outcome. Your publishing platform must support iframe embeds.
Details in the record
- Source record
- NOAA IncidentNews 8166[1]
Reading this account
Automatically assembled from NOAA's incident record and substantive Public Affairs or Situation Update posts. Dates are NOAA posting dates, which can differ from when events happened or original reports were published. Excerpts retain the source's wording and uncertainty. This account does not independently establish the cause, current outcome or safety of the area. NOAA coverage is selective; missing updates do not mean nothing happened. The map shows one approximate incident area, not a vessel track.
These are excerpts from the source, not independently verified conclusions. Publication order can differ from the sequence of events. Follow the source links for the complete reports.
Original sources
Timeline updated 13 Sept 2026. New reports and changes to this NOAA incident are incorporated automatically; this is not a live incident feed.
- 1.Crowley Tug Pathfinder; Bligh Reef, Prince William Sound, Alaska ↗NOAA Office of Response and Restoration · 23 Dec 2009
- 2.USCG Press Release ↗NOAA IncidentNews · source report archive · 24 Dec 2009
- 3.Second CG press release ↗NOAA IncidentNews · source report archive · 24 Dec 2009
- 4.Pathfinder Sitrep.Thurs noon ↗NOAA IncidentNews · source report archive · 24 Dec 2009
- 5.December 25 PM Unified Command press release ↗NOAA IncidentNews · source report archive · 26 Dec 2009
- 6.USCG Press Release Dec 27 ↗NOAA IncidentNews · source report archive · 28 Dec 2009
- 7.USCG Press Release Dec 27 ↗NOAA IncidentNews · source report archive · 28 Dec 2009
Related records in our archive
Original source text, preserved separately from this account.
NOAAORR-8166 NOAA response record
Crowley Tug Pathfinder; Bligh Reef, Prince William Sound, Alaska. Bligh Reef, Prince William Sound, Alaska. 1. On the evening of December 23, 2009, the tanker escort tug Pathfinder ran aground on Bligh Reef, Prince William Sound, Alaska. The vessel has 127,000 gallons of diesel on board. The center bottom tank, containing 22,000 gallons, is ruptured and an unknown amount has spilled. Bligh Reef was the site of the 1989 grounding and spill of the tanker Exxon Valdez. USCG has requested scientific support including trajectory of the spilled fuel oil. 2. THREAT: OIL. COMMODITY: DIESEL. MAXIMUM POTENTIAL RELEASE: 43108 GALLONS. TAGS: GROUNDING. 3. POSITION 60.838N 146.882W. NOAA INCIDENTNEWS 8166: https://incidentnews.noaa.gov/incident/8166Open record and warning history →
Follow another incident
Not for navigation. Follow official NAVAREA broadcasts and your national MSI service. About our sources.