Alyeska Pipeline Service Company's stated purpose is to protect the buried Trans-Alaska Pipeline from exposure to river scour. Proposed Work: Excavate 5,000 cubic yards from an unvegetated alluvial gravel bar in the Sagavanirktok River located at Latitude 69.9163º N., Longitude 148.7183º W.; Temporarily place the gravel in an unvegetated staging area located south of the channel plug; Place the 5,000 cubic yards of gravel in 0.55 acres of wetlands to construct a 400 foot x 60 foot channel plug located at Latitude 69.9196º N., Longitude 148.7268º W.; Obtain 2,000 cubic yards of riprap from an existing permitted material site near TAPS pump station 4, approximately one hundred miles south along the Dalton Highway, and place the riprap on top of the constructed gravel channel plug. The duration of the work is approximately eighteen days and will occur between June 1 and October 31, 2013. Please contact Janet Post at (907) 753-2831, toll free from within Alaska at (800) 478-2712, by fax at (907) 753-5567, or by email at Janet.L.Post@usace.army.mil if further information is desired concerning this notice.
POA-2007-504. Sagavanirktok River_PN
POA-2007-504. Sagavanirktok River_PN Drawings