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Utah State Route 161

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Title: Utah State Route 161  
Author: World Heritage Encyclopedia
Language: English
Subject: Interstate 15 in Utah, Interstate 70 in Utah, Utah State Route 162, Utah State Route 160, U.S. Route 91
Collection: Interstate 70, State Highways in Utah, Transportation in Millard County, Utah, U.S. Route 91
Publisher: World Heritage Encyclopedia

Utah State Route 161

State Route 161 marker

State Route 161
A red line indicates SR-161 intersecting two blue lines, the upper left line indicating I-15 and the lower right line indicating I-70
SR-161 in red
Route information
Defined by
Maintained by UDOT
Length: 3.084 mi[1] (4.963 km)
Existed: 1965 – present
Major junctions
South end: I‑70 near Cove Fort
North end: I‑15 near Cove Fort
Counties: Millard
Highway system
SR‑160 SR‑162

State Route 161 (SR-161) is a 3.084-mile (4.963 km) long state highway, designated as a rural major connector, completely within Millard County in central Utah. The highway connects Interstate 70 (I-70) to I-15 while providing service to historic Cove Fort. The route was once part of U.S. Route 91 (US-91), but was renumbered to SR-161 in the 1970s, in parallel with the construction of I-70.


  • Route description 1
  • History 2
  • Major intersections 3
  • References 4

Route description

Located entirely in southeastern Millard County,[2] SR-161 starts at a diamond interchange with the westernmost exit on I-70 before it terminates at I-15. The road continues northward until it reaches the historic Cove Fort and the associated visitors center. On the eastern side of the highway is a Utah Department of Transportation (UDOT) maintenance center. SR-161 starts to make a gentle turn to the northeast, passing a filling station, which also serves as a rest area as part of a public–private partnership between UDOT and the owners of the station.[1] The highway intersects I-15 and comes to an end at a cattle guard on Black Rock Road northwest of the interchange with I-15.[3]

In 2007, a daily average of 455 cars traveled along SR-161, representing only a slight growth from previous years; in 2006, the average was 450 and in 2005, 415).[4] Thirty five percent of this traffic was composed of trucks.[5] The average traffic measurement is collected at a point on SR-161 between Cove Fort and the interchange with I-15.


The SR-161 designation has been used two other times for other state routes. The first route, which was formed in 1933, connected US-50/US-89/US-91 (now US-89) to SR-68 in Bluffdale until the route was decommissioned in 1953. From May 8, 1961 to February 14, 1964, the route number was used for a road from US-91 to I-15 in the city of Beaver.[6]

The parallel T-beam bridges that carry I-15 over SR-161 at its northern terminus were constructed in 1966 along with the construction of I-15 though the area.[7] The bridges carrying I-70 over SR-161 were constructed in 1973.[8][9]

The current route, codified into Utah law in 1965 and designated on signage following the decommissioning of US-91 in the 1970s, was partially a former alignment of US-91. Once I-70 was completed the 1.07 mi (1.72 km) long segment of US-91 as well as the roadway to the north was designated SR-161 by the Utah State Department of Highways. No significant changes have been made to the roadway except for its legal definition.[6] SR-161 serves the important function of providing access to the contracted rest area as well as the historic Cove Fort. As of 2009 no new projects are scheduled for SR-161, either through the American Recovery and Reinvestment Act or the UDOT Statewide Transportation Improvement Program.[10][11]

Major intersections

The entire route is in Millard County.
Location Mile[1] km Destinations Notes
I‑70 to I‑15 – Richfield Southern terminus
I‑15 – Cedar City, Salt Lake City Exit 135 on I-15
  3.084 4.963 Black Rock Road Cattle guard Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b c "Route 161" (PDF). Highway Reference.  
  2. ^ Utah Department of Transportation (2005). General Highway Map — Millard County (Map). p. 6.,T:,364. Retrieved September 30, 2008.
  3. ^ Google Inc. "SR-161 Overview". Google Maps (Map). Cartography by Google, Inc.,-112.612106&daddr=UT-161&hl=en&geocode=%3BFXXITAIdqRhK-Q&mra=dme&mrcr=0&mrsp=0&sz=18&sll=38.61589,-112.612267&sspn=0.001622,0.003964&ie=UTF8&ll=38.602249,-112.600765&spn=0.051917,0.175781&t=h&z=13. Retrieved September 30, 2008.
  4. ^ "Traffic on Utah Highways - 2007" (PDF). Utah Department of Transportation. July 2, 2008. Retrieved September 30, 2008. 
  5. ^ "Truck Traffic on Utah Highways - 2007" (PDF). Utah Department of Transportation. July 2, 2008. Retrieved September 30, 2008. 
  6. ^ a b "Route 161" (PDF). Highway Resolutions. Utah Department of Transportation. November 2007. Retrieved September 30, 2008. 
  7. ^ "++++++++0D+745". National Bridge Inventory.  
  8. ^ "++++++++2F+193". National Bridge Inventory. United States Department of Transportation. 2009. Retrieved August 15, 2009. 
  9. ^ "++++++++4F+193". National Bridge Inventory. United States Department of Transportation. 2009. Retrieved August 15, 2009. 
  10. ^ "Statewide Transportation Improvement Program". Utah Department of Transportation. Retrieved August 15, 2009. 
  11. ^ "The American Recovery and Reinvestment Act". Utah Department of Transportation. Retrieved August 15, 2009. 
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