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POA-2023-00148 Caswell Creek PN

Regulatory
Published April 5, 2023
Expiration date: 5/5/2023

Matanuska Susitna Borough (MSB), 350 East Dahlia Avenue, Palmer, AK 99645, states the purpose is to reconstruct the roadway to collector road standards from the Parks Highway to South Caswell Loop Road. Permanently discharge up to 3,609 cubic yards of fill material into 1.1 acres of waters of the U.S., including wetlands, and temporarily discharge up to 441 cubic yards of fill material into 0.1-acre of waters of the U.S., including wetlands in order to make improvements to Hidden Hills Road. A total of 3,313 cubic yards of Type B or better fill material would be discharged into wetlands to improve the road subgrade and widen lanes, replace, repair, or install roadside hardware, adjust or relocate utilities, and make drainage improvements. Up to 296 cubic yards of stream substrate fill would be permanently placed below the ordinary high water mark (OHW) of an unnamed tributary to Caswell Creek in order to replace the existing culverts with an eight foot box culvert and armor the downstream channel. Up to 441 cubic yards of gravel fill would be temporarily discharged below the OHW in order to install a temporary culvert to maintain stream connectivity during construction. All work would be performed in accordance with the enclosed plan (sheets 1-14) dated March 9, 2023. The project site is located at Latitude 61.989321º N., Longitude 149.978962º W.; Hidden Hills Road near mile point 88 of the Parks Highway, between Willow and Talkeetna, Alaska. Please contact Roberta Budnik at (907) 753-2785, toll free from within Alaska at (800) 478-2712, or by email at roberta.k.budnik@usace.army.mil if further information is desired concerning this public notice.