List of Interstate Highways in Utah

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{{routelist row

|state=UT

|type=I

|route=15

|length_mi=400.592

|terminus_a= I-15 at the Arizona state line towards Littlefield

|terminus_b= I-15 at the Idaho state line towards Malad City

|established=1956

|notes=I-15 crosses through the entire state, starting in the south from Saint George, up through the middle of the state where it intersects I-70, and into the Salt Lake Valley to meet with I-215 and I-80. After leaving the valley, I-15 continues north, where it becomes concurrent with I-84 until the split in Tremonton, where I-15 heads north into Idaho.{{cite web |url = http://www.udot.utah.gov/main/uconowner.gf?n=7261107441006226 |title = Highway Reference - 0015 P |date = May 1, 2008 |publisher = Utah Department of Transportation |access-date = July 26, 2008 |format = PDF |url-status = dead |archive-url = https://web.archive.org/web/20071018202408/http://www.udot.utah.gov/main/uconowner.gf?n=7261107441006226 |archive-date = October 18, 2007 }}{{cite web |url = http://le.utah.gov/~code/TITLE72/htm/72_04_010700.htm |publisher = Utah State Legislature |title = Utah Code §72-4-107 |access-date = July 29, 2008 |url-status = dead |archive-url = https://web.archive.org/web/20080711120006/http://le.utah.gov/~code/TITLE72/htm/72_04_010700.htm |archive-date = July 11, 2008 }}

}}

{{routelist row

|state=UT

|type=I

|route=70

|length_mi=231.673

|terminus_a= I-15 near Cove Fort

|terminus_b= I-70/US 6/US 50 at the Colorado state line towards Grand Junction

|established=1957

|notes=Interstate 70 begins in Utah near Cove Fort, not passing through any major metropolitan areas of Utah, and serves as a long-haul route to Denver and the east coast. A stretch of {{convert|110|mi|km}} exists on the highway without any services available.{{cite web |url = http://www.udot.utah.gov/main/uconowner.gf?n=7264223371010820 |title = Highway Reference - 0070 P |date = May 1, 2008 |publisher = Utah Department of Transportation |access-date = July 26, 2008 |format = PDF |archive-date = September 22, 2008 |archive-url = https://web.archive.org/web/20080922194053/http://www.udot.utah.gov/main/uconowner.gf?n=7264223371010820 |url-status = dead }}{{cite web |url = http://le.utah.gov/~code/TITLE72/htm/72_04_011200.htm |publisher = Utah State Legislature |title = Utah Code §72-4-112 |access-date = July 29, 2008 |url-status = dead |archive-url = https://web.archive.org/web/20080711120028/http://le.utah.gov/~code/TITLE72/htm/72_04_011200.htm |archive-date = July 11, 2008 }}

}}

{{routelist row

|state=UT

|type=I

|route=80

|length_mi=196.680

|terminus_a= I-80 at the Nevada state line in Wendover

|terminus_b= I-80/US 189 at the Wyoming state line towards Evanston

|established=1956

|notes=Interstate 80 enters from Wendover and crosses the Bonneville Salt Flats before entering the Salt Lake Valley, briefly becoming concurrent with I-15 before leaving the valley through Parley's Canyon, meeting the end of I-84 and enters Wyoming.{{cite web |url = http://www.udot.utah.gov/main/uconowner.gf?n=7265629604012666 |title = Highway Reference - 0080 P |date = May 1, 2008 |publisher = Utah Department of Transportation |access-date = July 26, 2008 |format = PDF |archive-date = September 22, 2008 |archive-url = https://web.archive.org/web/20080922194011/http://www.udot.utah.gov/main/uconowner.gf?n=7265629604012666 |url-status = dead }}{{cite web |url = http://le.utah.gov/~code/TITLE72/htm/72_04_011300.htm |publisher = Utah State Legislature |title = Utah Code §72-4-113 |access-date = July 29, 2008 |url-status = dead |archive-url = https://web.archive.org/web/20080711120030/http://le.utah.gov/~code/TITLE72/htm/72_04_011300.htm |archive-date = July 11, 2008 }}

}}

{{routelist row

|state=UT

|type=I

|route=80N

|length_mi=

|terminus_a= I-80N at the Idaho state line towards Burley

|terminus_b= I-80 near Echo

|established=1958

|decommissioned=1977

|notes=Now I-84{{cite web|title=Eisenhower Interstate Highway System, Previous Facts of the Day|url=https://highways.dot.gov/highway-history/interstate-system/50th-anniversary|website=Highway History|publisher=Federal Highway Administration, US DOT|access-date=11 October 2017|language=en|date=March 15, 2010}}

}}

{{routelist row

|state=UT

|type=I

|route=84

|length_mi=119.773

|terminus_a= I-84 at the Idaho state line towards Burley

|terminus_b= I-80 near Echo

|established=1977

|notes=I-84 enters in Snowville and soon becomes concurrent with I-15 until it splits off in Roy, and enters Weber Canyon before ending at I-80 in Echo{{cite web |url = http://www.udot.utah.gov/main/uconowner.gf?n=7267404455014867 |title = Highway Reference - 0084 P |date = May 1, 2008 |publisher = Utah Department of Transportation |access-date = July 26, 2008 |format = PDF |archive-date = September 22, 2008 |archive-url = https://web.archive.org/web/20080922194055/http://www.udot.utah.gov/main/uconowner.gf?n=7267404455014867 |url-status = dead }}{{cite web |url = http://le.utah.gov/~code/TITLE72/htm/72_04_011400.htm |publisher = Utah State Legislature |title = Utah Code §72-4-114 |access-date = July 29, 2008 }}

}}

{{routelist row

|state=UT

|type=I

|route=215

|length_mi=28.946

|terminus_a= I-80 at Parley's Canyon

|terminus_b= I-15 in North Salt Lake

|established=1963

|notes=270 degree belt route around Salt Lake City{{cite web |url = http://www.udot.utah.gov/main/uconowner.gf?n=7262615752008692 |title = Highway Reference - 0215 P |date = May 1, 2008 |publisher = Utah Department of Transportation |access-date = July 26, 2008 |format = PDF }}{{cite web |url = http://le.utah.gov/~code/TITLE72/htm/72_04_012700.htm |publisher = Utah State Legislature |title = Utah Code §72-4-127 |access-date = July 29, 2008 |url-status = dead |archive-url = https://web.archive.org/web/20080711120002/http://le.utah.gov/~code/TITLE72/htm/72_04_012700.htm |archive-date = July 11, 2008 }}

}}

{{routelist row

|state=UT

|type=I

|route=415

|length_mi=

|terminus_a= I-15/I-215 in Murray

|terminus_b= I-80 in Salt Lake City

|established=1959

|decommissioned=1969

|notes=Now I-215

}}

{{routelist bottom|keys=former}}

File:I-15indowntown.jpg|I-15 in Salt Lake City

File:I70 at San Rafael swell-Green River.jpg|I-70 through Spotted Wolf Canyon

File:80slctraffic.jpg|I-80 approaching road construction in Salt Lake City

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{{Commons category|Interstate Highways in Utah}}

• [https://web.archive.org/web/20060202015050/http://members.aol.com/utahhwys/index.htm Utah Highways Page by Dan Stober (wayback archive)]

{{DEFAULTSORT:Interstate Highways In Utah}}

Interstate