Idaho State Highway 28

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State Highway 28 marker

State Highway 28
Route information
Maintained by ITD
Length 135.6 mi[1] (218.3 km)
Highway system
SH 27 SH 29

Idaho State Highway 28 is a 135.6 mi (218.2 km) long state highway in Idaho which runs from Salmon, Idaho to Interstate 15 near the Continental Divide.

It runs through Tendoy, Idaho in Lemhi County, Idaho.

Route description[edit]

View along Idaho State Highway in Lemhi Valley, October 2012

Idaho State Highway 28 begins at an intersection with U.S. Route 93 in the community of Salmon. The highway proceeds southeast through the Lemhi Valley, traveling parallel to the Lemhi River for several miles. The road passes through Leadore, intersecting Idaho State Highway 29 while in the community. Just after exiting the town, the highway passes the Leadore Airport. The roadway continues southeastward for a short distance before bending south and proceeding through the Lemhi Valley. After a long distance, the route bends back southeastward, proceeding to an intersection with State Highway 22. The route continues southeast before passing the Mud Lake Airport, and intersecting ID 33. The road runs concurrently for several miles, traveling eastward. The highway bends southeast, and reaches its western terminus, an interchange with Interstate 15.[2] The entire length of the route is designated as the Sacajawea Historic Byway by the state of Idaho.[3]

Major junctions[edit]

County Location mi[1] km Destinations Notes
Jefferson 0.000 0.000 I-15 / SH 33 eastern terminus and eastern end of ID 33 concurrency
15.150 24.382 SH 33 Western terminus of ID 33 concurrency
15.212 24.481 ID-28 Connector Northern terminus of ID-28 Connector
17.700 28.485 Monteview Highway
Clark 30.610 49.262 SH 22
Lemhi Leadore 90.229 145.209 SH 29 Western terminus of ID-29
Tendoy 115.734 186.256 Lewis and Clark Back Country Scenic Byway Western terminus of the byway
Salmon 135.645 218.299 US 93 (Challis Street) Western terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]


  1. ^ a b "Milepost Log for Highway 28". Idaho Transportation Department. Retrieved 2008-05-15. 
  2. ^ Google (January 29, 2013). "Overview Map of Idaho State Highway 28" (Map). Google Maps. Google. Retrieved January 29, 2013. 
  3. ^ Idaho Transportation Department. "Sacajawea Scenic Byway". Idaho's Scenic Byways. America's Byways. Retrieved January 29, 2013. 

External links[edit]

Media related to Idaho State Highway 28 at Wikimedia Commons

Route map: Google

KML is from Wikidata