State Route 102 is a 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...

 in the U.S.

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 state of 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...

 that connects Tremonton

Tremonton, Utah

Tremonton is a city in Box Elder County, Utah, United States. The population was 7,647 at the 2010 census.-Geography:Tremonton is located at ....

 with I-84, SR-83, and the towns of Deweyville

Deweyville, Utah

Deweyville is a town in Box Elder County, Utah, United States. The population was 332 at the 2010 census.-Geography:Deweyville is located at ....

, Bothwell

Bothwell, Utah

Bothwell is an unincorporated community in Box Elder County, Utah, United States.Located on highway U-102, the community is west of Tremonton and northeast of Thatcher....

, Thatcher

Thatcher, Utah

Thatcher is a census-designated place in Box Elder County, Utah, United States. It is a small farming community, located southwest of Bothwell and west of Tremonton. The population was 789 at the 2010 census....

, Penrose

Penrose, Utah

Penrose is an unincorporated farming community in Box Elder County, Utah, United States.Penrose is located along the last of Utah State Route 102, about south of Thatcher....

, and Thiokol

Thiokol

Thiokol is a U.S. corporation concerned initially with rubber and related chemicals, and later with rocket and missile propulsion systems...

's facility in Box Elder County

Box Elder County, Utah

Box Elder County is a county located in the U.S. state of Utah. It lies on the north end of the Great Salt Lake, covering a large area north to the Idaho border and west to the Nevada border. Included in this area are large tracts of barren desert, contrasted by high, forested mountains. The...

.

Route description

The route starts on SR-83 east of Lampo Junction travelling northeast. After about 2 miles (3.2 km), the route starts to "stairstep", alternately going north and east through Penrose

Penrose, Utah

Penrose is an unincorporated farming community in Box Elder County, Utah, United States.Penrose is located along the last of Utah State Route 102, about south of Thatcher....

 and Thatcher

Thatcher, Utah

Thatcher is a census-designated place in Box Elder County, Utah, United States. It is a small farming community, located southwest of Bothwell and west of Tremonton. The population was 789 at the 2010 census....

, before settling on an easterly direction through Bothwell

Bothwell, Utah

Bothwell is an unincorporated community in Box Elder County, Utah, United States.Located on highway U-102, the community is west of Tremonton and northeast of Thatcher....

. Soon after, the route intersects I-84 at Bothwell Junction, passes under I-15, passes through Tremonton

Tremonton, Utah

Tremonton is a city in Box Elder County, Utah, United States. The population was 7,647 at the 2010 census.-Geography:Tremonton is located at ....

 and Haws Corner Junction and ending at SR-38 in Deweyville

Deweyville, Utah

Deweyville is a town in Box Elder County, Utah, United States. The population was 332 at the 2010 census.-Geography:Deweyville is located at ....

 at the base of the Wellsville Mountains

Wellsville Mountains

The Wellsville Mountains are located in northern Utah and are often considered part of the Wasatch Mountains. The mountains separate the Cache Valley from the Wasatch Front. Nearly all of the water collected by the Wellsville Mountains drains into the Bear River.While only moderately tall, they are...

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History

SR-102 was originally designated in 1931 as the road from Deweyville

Deweyville, Utah

Deweyville is a town in Box Elder County, Utah, United States. The population was 332 at the 2010 census.-Geography:Deweyville is located at ....

 to Haws Corner. In 1969, the route was extended westward through Tremonton

Tremonton, Utah

Tremonton is a city in Box Elder County, Utah, United States. The population was 7,647 at the 2010 census.-Geography:Tremonton is located at ....

 to SR-83 east of Lampo Junction (this stretch of road was formerly part of SR-3).

In 1966, the counties in northern Utah requested that the State Road Commission designate a single route number to run east–west across that part of the state. This route overlapped SR-102 between Deweyville and I-84. For this new route, the number SR-30 was selected, but there were no legislative description changes of the highways. Instead, the old route numbers were kept and marked on small, rectangular signs below the SR-30 shields.

In the 1977 renumbering, the legislative description of this new route was changed to SR-30, resulting in SR-102's eastern terminus being moved to I-84. In 1989, the commission resolved that, once I-15 was completed north of Tremonton, SR-30 would be rerouted to replace SR-129, with SR-102 being extended back to Deweyville.

Major intersections