Utah State Route 161
Encyclopedia
State Route 161 is a 3.084 miles (5 km) long state highway
State highway
State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...

, designated as a rural major connector, completely within Millard County
Millard County, Utah
Millard County is a county located in the U.S. state of Utah. In 2010, its population was 12,420. It was named for Millard Fillmore, thirteenth President of the United States. Its county seat is Fillmore and the largest city is Delta.-Geography:...

 in central Utah
Utah
Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...

. The highway connects Interstate 70 (I-70) to I-15 while providing service to historic Cove Fort
Cove Fort, Utah
Cove Fort is a fort and historical site located in Millard County, Utah. It was founded in 1867 by Ira Hinckley at the request of Brigham Young. One of its distinctive features is the use of volcanic rock in the construction of the walls, rather than the wood used in many mid-19th century...

. The route was once part of U.S. Route 91
U.S. Route 91
U.S. Route 91 is a north–south United States highway. The highway currently serves as a connection between the Cache Valley area of Utah and Idaho to the Salt Lake and Idaho Falls population centers. Prior the mid-1970s, U.S. 91 was an international commerce route from Long Beach, California...

 (US-91), but was renumbered to SR-161 in the 1970s, in parallel with the construction of I-70.

Route description

Located entirely in southeastern Millard County
Millard County, Utah
Millard County is a county located in the U.S. state of Utah. In 2010, its population was 12,420. It was named for Millard Fillmore, thirteenth President of the United States. Its county seat is Fillmore and the largest city is Delta.-Geography:...

, SR-161 starts at a diamond interchange
Diamond interchange
A diamond interchange is a common type of road junction, used where a freeway crosses a minor road. The freeway itself is grade-separated from the minor road, one crossing the other over a bridge...

 with the westernmost exit on I-70
Interstate 70 in Utah
Interstate 70 is a mainline route of the Interstate Highway System in the United States connecting Utah and Maryland. The Utah section runs east–west for across the central part of the state. Richfield is the largest Utah city served by the freeway, which does not serve or connect any urban areas...

 before it terminates at I-15
Interstate 15 in Utah
In the U.S. state of Utah, Interstate 15 runs north–south through the southwestern and central portions of the state, passing through many of the population centers of that state, including St. George, Provo, Salt Lake City, and Ogden, the latter three being part of the urban area known as...

. 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
Utah Department of Transportation
The Utah Department of Transportation is an agency of the state government for the U.S. state of Utah. The agency is usually referred to by its initials UDOT . UDOT is charged with maintaining the network of state highways in Utah. The agency is headquartered in the Calvin L. Rampton state office...

 (UDOT) maintenance center. SR-161 starts to make a gentle turn to the northeast, passing a filling station
Filling station
A filling station, also known as a fueling station, garage, gasbar , gas station , petrol bunk , petrol pump , petrol garage, petrol kiosk , petrol station "'servo"' in Australia or service station, is a facility which sells fuel and lubricants...

, which also serves as a rest area
Rest area
A rest area, travel plaza, rest stop, or service area is a public facility, located next to a large thoroughfare such as a highway, expressway, or freeway at which drivers and passengers can rest, eat, or refuel without exiting on to secondary roads...

 as part of a public–private partnership between UDOT and the owners of the station. The highway intersects I-15 and comes to an end at a cattle guard
Cattle grid
A cattle grid or cattle guard – also known as a vehicle pass, Texas gate, stock gap A cattle grid (or stock grid)(British English) or cattle guard (American English) – also known as a vehicle pass, Texas gate, stock gap A cattle grid (or stock grid)(British English) or cattle guard (American...

 on Black Rock Road northwest of the interchange with I-15.

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). Thirty five percent of this traffic was composed of trucks. The average traffic measurement is collected at a point on SR-161 between Cove Fort and the interchange with I-15.

History

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
Bluffdale, Utah
Bluffdale is a city in Salt Lake County, Utah, USA. It is part of the Salt Lake City, Utah Metropolitan Statistical Area. The population was 4,700 according to the 2000 census...

 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
Interstate 15 in Utah
In the U.S. state of Utah, Interstate 15 runs north–south through the southwestern and central portions of the state, passing through many of the population centers of that state, including St. George, Provo, Salt Lake City, and Ogden, the latter three being part of the urban area known as...

 in the city of Beaver
Beaver, Utah
Beaver is a city in Beaver County, Utah, United States. The population was 2,454 at the 2000 census. It is the county seat of Beaver County.Settled by Mormon pioneers in 1856, Beaver was one of a string of Mormon settlements extending the length of Utah...

.

The parallel T-beam
T-beam
A T-beam, used in construction, is a load-bearing structure of reinforced concrete, wood or metal, with a t-shaped cross section. The top of the t-shaped cross section serves as a flange or compression member in resisting compressive stresses...

 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. The bridges carrying I-70 over SR-161 were constructed in 1973.

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 (1.7 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. SR-161 serves the important function of providing access to the contracted rest area as well as the historic Cove Fort. Currently no new projects are scheduled for SR-161, either through the American Recovery and Reinvestment Act or the UDOT Statewide Transportation Improvement Program.

Major intersections

The entire route is located in Millard County
Millard County, Utah
Millard County is a county located in the U.S. state of Utah. In 2010, its population was 12,420. It was named for Millard Fillmore, thirteenth President of the United States. Its county seat is Fillmore and the largest city is Delta.-Geography:...

.

{| class=wikitable
!Mile
!Destinations
!Notes
|-
|0.000–0.080
| – Richfield
Richfield, Utah
Richfield is a city in and the county seat of Sevier County, Utah, in the United States, and is the largest city in southern-central Utah. As of the 2010 census, the city population was 7,551. It lies in the Mormon Corridor, just off of Interstate 70 about 40 miles east of its junction with...


|Southern terminus
|-
|2.812–3.071
| – Cedar City
Cedar City, Utah
As of the census of 2000, there were 20,527 people, 6,486 households, and 4,682 families residing in the city. The population density was 1,021.8 people per square mile . There were 7,109 housing units at an average density of 353.9 per square mile...

, Salt Lake City
Salt Lake City, Utah
Salt Lake City is the capital and the most populous city of the U.S. state of Utah. The name of the city is often shortened to Salt Lake or SLC. With a population of 186,440 as of the 2010 Census, the city lies in the Salt Lake City metropolitan area, which has a total population of 1,124,197...


|
|-
|3.084
|Black Rock Road Cattle guard
|Northern terminus
|-
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