Sterling Highway

Interstate A3
Location	Soldotna to Anchorage
Length	238.38 mi (383.64 km)
Existed	1976–present

Sterling Highway
	Sterling Highway highlighted in red
Route information
	Maintained by Alaska DOT&PF
Length	132 mi[1] (212 km)
Existed	1950–present
Major junctions
South end	Alaska Marine Highway in Homer
North end	AK-1 / AK-9 (Seward Highway) in Chugach National Forest
Highway system
	Alaska Routes; Interstate; U.S.; Scenic Byways;

The Sterling Highway is a 138-mile-long (222 km) state highway in the south-central region of the U.S. state of Alaska, leading from the Seward Highway at Tern Lake Junction, 90 miles (140 km) south of Anchorage, to Homer.

Sterling Highway eastbound, entering the Kenai Mountains.

Sterling Highway at mile 170 (km 274), descending a long, steep hill (locally known as "Baycrest Hill") towards Homer.

Route description

Construction of the highway began in 1947 and was completed in 1950. The Sterling Highway is part of Alaska Route 1. It leads mainly west from Tern Lake to Soldotna, paralleling the Kenai River, at which point it turns south to follow the eastern shore of Cook Inlet. It is the only highway in the western and central Kenai Peninsula, and most of the population of the Kenai Peninsula Borough lives near it. The highway also gives access to many extremely popular fishing and recreation areas, including the Chugach National Forest, Kenai National Wildlife Refuge, and the Kenai, Funny, and Russian rivers. The southern end of the highway is at the tip of the Homer Spit, a landspit extending 4.5 miles (7.2 km) into Kachemak Bay. A ferry terminal here connects the road to the Alaska Marine Highway.[1]

Interstate Highway System

Sterling Highway is part of the unsigned part of the Interstate Highway System as Interstate A-3.[2][3]

Major intersections

Mileposts on the Seward Highway begin with Mile 37 (60 km), continuing from the mileposts of the Seward Highway. (The 0 (zero) mile marker for the Seward Highway is in downtown Seward, at the intersection of 3rd and Railway Avenues. Thus, mileposts along the Sterling Highway reflect distance from Seward, which is not actually on the Sterling Highway.

The entire route is in Kenai Peninsula Borough.

Location	mi[1]	km	Destinations	Notes
Homer	0	0.0	AK-1 south (Lake Street) / Health Street	Continues south to Alaska Marine Highway terminal
Soldotna	75	121	Kenai Spur Highway north – Kenai
Chugach National Forest	132	212	AK-1 north / AK-9 south (Seward Highway) – Anchorage, Seward	Tern Lake Junction; northern terminus of AK-9
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

Google (January 11, 2020). "Sterling Highway" (Map). Google Maps. Google. Retrieved January 11, 2020.
Federal Highway Administration, National Highway System Viewer Archived 2007-08-27 at the Wayback Machine. Retrieved August 2007.
Alaska Department of Transportation and Public Facilities, Dwight D. Eisenhower Interstate Routes Archived 2009-07-27 at the Wayback Machine, April 2006

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[googlemaps-1] Google (January 11, 2020). "Sterling Highway" (Map). Google Maps. Google. Retrieved January 11, 2020.

[2] Federal Highway Administration, National Highway System Viewer Archived 2007-08-27 at the Wayback Machine. Retrieved August 2007.

[3] Alaska Department of Transportation and Public Facilities, Dwight D. Eisenhower Interstate Routes Archived 2009-07-27 at the Wayback Machine, April 2006