Idaho State Highway 3

State Highway 3 marker

State Highway 3
Route information
Maintained by ITD
Length 117.680 mi[1][2] (189.388 km)
Major junctions
South end US 12 near Spalding
  SH 99 in Kendrick
SH 8 in Deary
SH 8 in Bovill
SH 6 near Santa
SH 5 in St. Maries
SH 97 near Harrison
North end I-90 near Rose Lake
Location
Counties Nez Perce, Latah, Shoshone,
Benewah, Kootenai
Highway system
← US 2SH 4 →
Spalding
Rose Lake
Location in Idaho

Idaho State Highway 3 (SH-3) is a state highway in northern Idaho, connecting U.S. Route 12 near Spalding, east of Lewiston, with Interstate 90 near Rose Lake, east of Coeur d'Alene. It is 117.68 miles (189.4 km) in length and runs north–south,[1] east of and generally parallel to Idaho's primary north–south highway, U.S. Route 95.

Route description

SH-3's southern terminus is near Arrow Gulch Creek Bridge to the east of Spalding on US 12 on the Nez Perce Indian Reservation in Nez Perce County. It then heads generally northeast into eastern Latah County, where it leaves the reservation, and continues through Juliaetta and Kendrick, where it intersects SH-99. It then continues generally north to Deary, where it overlaps SH-8. The overlapping highways continue east and northeast to Bovill, where they diverge.[1][2]

SH-3 then continues generally north through Shoshone County, crossing the Saint Maries River, into Benewah County. It then turns generally northwest to Santa, where it intersects SH-6.[1]

SH-3 then continues generally north to Saint Maries, where it intersects SH-5 before crossing the Saint Joe River and entering the Coeur d'Alene Indian Reservation. It then continues generally northwest and north past a historical marker for Saint Joseph Indian Mission into Kootenai County.[1][3]

In Kootenai County, SH-3 continues generally north past an intersection with SH-97 and a historical marker for The Mullan Road, then over Mission Hill Creek Grade and Black Rock Grade before leaving the Coeur d'Alene reservation. It then turns east and northeast along and across the Coeur d'Alene River to Rose Lake. It then continues generally northeast and east to the northern terminus, east of the 4th of July Creek Bridge on I-90[1][3]

Major intersections

CountyLocationmi[1]kmDestinationsNotes
Nez PerceSpalding0.0000.000 US 12 – SpaldingSouthern terminus,
continuation westward along US 12
LatahKendrick12.35519.883 SH 99 – Troy
Deary29.00046.671 SH 8Begin overlap
Bovill39.00062.764 SH 8End overlap
Shoshone
 No major junctions
BenewahSanta70.070112.767 SH 6Santa Junction
Saint Maries84.542136.057 SH 5
KootenaiHarrison95.880154.304 SH 97 – HarrisonContinuation northward on SH-97
Rose Lake117.680189.388 I-90 – Kingston, Coeur d'AleneNorthern terminus at Exit 34;
continuations east/west on I-90
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

Route map:

KML is from Wikidata
  1. 1 2 3 4 5 6 7 Idaho Transportation Department (November 26, 2008). "Milepost Log". Retrieved 2008-12-22.
  2. 1 2 Idaho Transportation Department (November 26, 2008). "Milepost Log". Retrieved 2008-12-22.
  3. 1 2 Idaho Transportation Department (May 26, 2005). "Idaho Highway Historical Marker Guide Index". Archived from the original on December 15, 2008. Retrieved 2008-12-20.
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