Hilcorp North Slope, LLC, stated the purpose is to support and maintain the integrity of bridge supports over the Sagavanirktok (Sag) River. PROPOSED WORK: The Applicant states that the scope of this project is to improve flow under the Sagavanirktok (Sag) River vehicle bridge and pipe bridge, by dredging and recontouring the river bottom to follow the natural slope of the riverbed. This would be done by removing approximately 45,000 cubic yards of material from 13 acres of riverbed, focusing on excavating high areas down to 4 feet above sea level elevation and filling low areas to 4 feet above sea level elevation. Additional areas downstream of the bridges would be scoured to remove gravel that tends to plug the pump supplying water for Prudhoe Bay Operations Center (PBOC). Leftover material would also be placed in the bridge bulkhead area to replenish the east bank. Please contact Andrew Kastning at (907) 753-2554, toll free from within Alaska at (800) 478-2712, or by email at Andrew.C.Kastning@usace.army.mil if further information is desired concerning this public notice.
POA-2020-00147-M1 Sagavanirktok River PN