Utah State Route 145

State Route 145 marker

State Route 145
Pioneer Crossing
American Fork Main Street
Route information
Defined by Utah Code §72-4-120
Maintained by UDOT
Length 6.862 mi[1] (11.043 km)
Existed 1978[2]–present
Major junctions
West end SR-73 in Saratoga Springs
  SR-68 in Saratoga Springs
I-15 in American Fork
East end US-89 in American Fork
Highway system
  • State highways in Utah
← SR-144SR-147 →

State Route 145 (SR-145), a majority of which is also known as Pioneer Crossing, is a west–east thoroughfare completely within Utah County in northern Utah that cuts through Saratoga Springs, Lehi, American Fork, and portions of unincorporated Utah County. The portion between Interstate 15 (I-15) and U.S. Route 89 (US-89) has been under state jurisdiction since 1978, while the roadway between SR-68 and I-15 (the section named Pioneer Crossing) opened in 2010. The road (and Pioneer Crossing name) were extended from SR-68 to SR-73 in 2014. The road runs mostly parallel to and south of SR-73, which also connects to SR-68 and I-15. The original portion of the route between I-15 (including the interchange) and US-89 is designated as Main Street in American Fork's street grid.

Route description

Commencing from the route's western terminus in northern Saratoga Springs, SR-145 heads southeast as Pioneer Crossing with two lanes in each direction, divided by a center turn lane. The road turns east just prior to the intersection with SR-68, then crosses over the Jordan River. The route then takes a brief northeasterly turn before returning due east, and passing through a rural area of western Utah County before entering a stretch of development past 2300 West. The highway turns southeast to avoid development before again turning northeast and east. The road gains a third lane in each direction past 300 East (on Lehi's grid) then becomes American Fork Main Street just prior to where it meets I-15 at a diverging diamond interchange (DDI). The road continues east for about a half-mile and ends at an intersection with State Street (US-89).[3]

History

State maintenance of Main Street in American Fork (from I-15 to US-89) was established in May 1978, the state legislature approving that the following year. By 2003, a concept of a connector between Redwood Road (SR-68) and I-15 was presented in an environmental impact study for the Mountain View Corridor. After a separate study was completed in 2008, plans to construct the connector were set in place. As part of a project to reconstruct over twenty miles of I-15 through Utah County, the present interchange at Main Street was set to be rebuilt as a diverging diamond interchange (DDI). Construction began in early 2009, with the road opening to traffic between US-89 and SR-68 on August 23, 2010.[4][5] The DDI was the second to be opened in the United States, the first being in Missouri.[6] In June 2014, construction began to extend Pioneer Crossing northwest of SR-68 to SR-73.[7] The extension was completed on November 26, 2014.[8]

Major intersections

The entire route is in Utah County.

Locationmi[1]kmDestinationsNotes
Saratoga Springs0.0000.000 SR-73 (Crossroads Blvd.)Western terminus
1.1361.828 SR-68 (Redwood Road)
American Fork6.27810.103 I-15 – Provo, Salt Lake CityDiverging diamond interchange
6.86211.043 US-89 (State Street)Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

Route map:

KML is from Wikidata
  1. 1 2 "Route 145" (PDF). Highway Reference. Utah Department of Transportation. December 2014. Retrieved July 17, 2015.
  2. ↑ Utah Department of Transportation, Highway Resolutions: "Route 145".  (623 KB), updated November 2008, accessed September 2010.
  3. ↑ "Google Maps". Google.
  4. ↑ Utah Department of Transportation, Pioneer Crossing - Project History, accessed 4 October 2010.
  5. ↑ The Daily Herald, Pioneer Crossing opens, accessed July 17, 2015.
  6. ↑ Utah Department of Transportation, Pioneer Crossing - Diverging Diamond Interchange, accessed 4 October 2010.
  7. ↑ Utah Department of Transportation, SR-145; Pioneer Crossing Extension to SR-73, accessed July 17, 2015.
  8. ↑ The Daily Herald, Pioneer Crossing extension opens early, accessed July 17, 2015.
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