Expiration date: 1/15/2021
Jill Baxter-McIntosh, with Alaska Department of Transportation and Public Facilities (ADOT&PF), states the project purpose is to improve safety on this stretch of highway. Proposed work would modify the original permit to increase the wetland acres impacted by placement of fill additional disposal sites. This is a precautionary contingency proposal as the soil, which is rich in permafrost and fine particles, are wet and slumping and the original volume of excavated materials cannot be piled as originally planned. Work being purposed includes three newly proposed spoil disposal areas are in Palustrine Scrub Shrub wetlands. A maximum of 25.9 acres of impacts are anticipated if all the proposed disposal areas are needed for the project. This will be the result of placing approximately 70,500 cubic yards of unusable material in stabilization berms along the road embankment. Estimations of acreage and fill quantities were made assuming a 3:1 catch slope and 10-ft offset from the edge of right-of-way. All work would be performed in accordance with the enclosed plan (sheets 1–6), dated December 01, 2020. The project site is on the Richardson Highway between Mile Posts (MP) 159 and 167, located within: USGS Quad Gulkana C–3, T 10 N., R 01 W., Sections 5 & 6, T 11 N., R 01 W., Sections 6, 8, 16, 17, 21, 28, 29, and 32 and USGS Quad Gulkana D–3, T 12 N., R 01 W., Section 32. Three proposed disposal areas along the Richardson Highway include (1) 62.71389° N., -145.4333° W. to 62.72083° N., -145.4350° W.; (2) 62.7225° N., -145.4353° W. to 62.72889° N., -145.4367° W.; and (3) 62.73694° N., -145.4375° W. to 62.75111° N., -145.455° W.; near Glennallen, Alaska. Please contact Amy Tippery at (907) 458-1502, by fax at (907) 474-2164, or by email at Amy.C.Tippery@usace.army.mil if further information is desired concerning this notice.