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Mat-Su BoroughAlaska Railroad

The Port Mackenzie Rail Extension is a 32-mile rail line in the Susitna River valley. The rail line travels north from the port facility and connects to the existing rail system near Houston. The new rail line is an extension of the ARRC system, which currently connects ports in Seward, Whittier, and Anchorage with Interior Alaska, including Denali National Park, Fairbanks, and North Pole.

The Matanuska Susitna Borough is the operator of Port MacKenzie, project sponsor, and co-manager of the project.

October 2015 Fact Sheet - 1.6 Mb

May 2014 Presentation Slideshow - 18 Mb (May take a few moments to load)

Enlarged Map of Project Alignment

HOVER YOUR MOUSE (don't click) ON "SEGMENTS" below to read details. They will pop up after a moment.

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SEGMENT 1:
This 4.9-mile segment begins at the embankment of the Bi-Modal Bulk Facility (BMBF) of Port MacKenzie and proceeds northwest to a quarter mile south of Baker Farm Road, where it turns and heads directly north. It stops shortly after crossing the 3-span Baker Farm Bridge at MP (Milepost) K5.48.

SEGMENT 2:
This 7.1-mile segment continues north of Baker Farm Road through the Point MacKenzie Agricultural Project. It diverges northwest from Baker Farm Road and runs parallel to Guernsey Road until ending at agricultural district boundary at MP K12.7. A terminal reserve area to facilitate the arrival and departure of trains will be constructed in this segment.

SEGMENT 3:
This 7.7-mile segment begins at the agricultural district boundary at MP K12.7 and continues north through an at-grade crossing of  Ayrshire Avenue near the Guernsey Road/Ayrshire Avenue intersection.  This segment continues northwest around the northeast end of My Lake, then curves back northeast, crossing the 5-span bridge at the outflow of Diamond Lake and the historic Iditarod Trail 3-span bridge. It intersects the Iditarod Race Trail 3-span bridge at MP K17.95, loops northwest and then northeast before heading straight north across the Susitna Parkway at-grade crossing, ending near Papoose Twins Road.

SEGMENT 4:
This 7.4-mile segment would proceed northeast from near Papoose Twins Road through slightly rolling terrain with areas of wetland. The segment passes between East Papoose Twins Lake and Crooked Lake, with the last 4 miles of the segment going through a gradually rising plain near the northern shore of  Muleshoe Lake.

SEGMENT 5:
This 4.2-mile segment begins on the northern shore of Muleshoe Lake and continues northeast, passing Houston Lake Loop Trail, Horseshoe Lake, a private access road, and MEA power lines to Miller’s Reach Road at MP K31.83.

SEGMENT 6:
This segment begins at Miller’s Reach Road and ties into the ARRC Mainline near Houston without crossing the Parks Highway. The segment includes construction of approximately 1.8 miles of new railroad embankment, widening 2.9 miles of existing main line railroad embankment, and installing a new 118-foot railway bridge adjacent to an existing railway bridge over the Little Susitna River. This connection will facilitate the movement of trains both northbound and southbound in a Y configuration.

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