Division of Spill Prevention and Response

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Incident Description

Incident Location Map

Location The T/B Na-Kao was soft aground at position 58° 54'03"N / 158° 35'24"W, approximately 9 miles south of Dillingham in the Nushagak River. Dillingham is located at the extreme northern end of Nushagak Bay in northern Bristol Bay, at the confluence of the Wood and Nushagak Rivers, and 327 miles southwest of Anchorage.
Product/Quantity No fuel has been released. At the time of the grounding the T/B Na-Kao, was loaded with 249,958 gallons of jet fuel, 612,238 gallons of diesel fuel, and 349,958 gallons of gasoline. The T/B Na-Kao is a 275 ft. double hull tank barge. Its official number is 1174391. The Tug Seneca has reported that they have approximately 29,169 gallons of diesel fuel on board at the time of the grounding.
Cause The cause of the grounding is under investigation by the USCG Sector Anchorage.
Time/Date of Incident This is a potential spill. At approximately 12:15 AM on July 10, 2011, USCG Sector Anchorage was notified that while transiting to Dillingham, the Crowley Tug Seneca had a gill net entangled in the starboard prop which resulted in the tug veering off course and running the Tank Barge (T/B) Na-Kao soft aground in the Nushagak River . The State of Alaska was notified of the incident by the USCG at 2:29 AM on July 10, 2011.
Situation Reports
07/11/2011 (PDF 87K) -- FINAL
 
For more information
John Brown, ADEC, (907) 269-7688