Interstate 80 in Utah

Interstate 80 Main route of the Interstate Highway System
Defined by Utah Code §72-4-113, maintained by UDOT
Length:	196.35 mi[1] (315.99 km)
Formed:	1956
West end:	I-80 in West Wendover, NV
Major junctions:	I-15 in Salt Lake City US-89 in Salt Lake City US-40 / US-189 near Park City I-84 in Echo
East end:	I-80 / US 189 towards Evanston, WY
State highways in Utah (lists: I • US • SR) < SR-79 SR-81 >

In the U.S. state of Utah, Interstate 80 (I-80) runs 196 miles (315.4 km) east-west through northern Utah, passing through the Bonneville Salt Flats, the Salt Lake City metropolitan area, and the Wasatch Mountains. It is the replacement for the Lincoln Highway, as well as most of the Victory Highway, in that state.

Route description

After crossing Utah's western border, I-80 crosses the desolate Bonneville Salt Flats west of the Great Salt Lake. The longest stretch between exits on an Interstate Highway is located between Wendover and Knolls, with 37 miles (60 km) between those exits. This portion of I-80, crossing the Great Salt Lake Desert, is extremely flat and straight, dotted with large warning signs about driver fatigue and drowsiness. A sculpture, Metaphor: The Tree of Utah stands just off I-80 on the westbound lanes in this area.

East of the salt flats, I-80 passes through Salt Lake City, where it merges with I-15 for three miles (5 km) before entering the Wasatch Mountains east of the city. It ascends Parley's Canyon as a six-lane freeway to an elevation of around 7000' at Parley's Summit, and passes within a few miles of Park City as it follows a route through the mountains towards Wyoming.

History

Lincoln Highway

I-80 is signed as the Lincoln Highway in Utah except in Salt Lake City, where it is routed along State Route 201 and Parley's Way. East of Salt Lake, I-80 closely parallels the original route of the Lincoln Highway. However west of Salt Lake the original route of the Lincoln Highway is un-drivable. The original route of the Lincoln Highway proceeded southwest from Tooele towards Ely, Nevada. This area is now used for military bases such as the Dugway Proving Ground and Tooele Army Depot. When these bases were formed the area was closed to the public. Interstate 80 in Utah and U.S. Route 93 in Nevada are the modern signing of the Lincoln Highway between those two cities.^{[citation needed]}

Victory Highway

Interstate 80 across the Bonneville Salt Flats

I-80 closely follows the route of the Victory Highway from the Wendover at the Nevada state line to the junction of U.S. Route 40 near Park City.^{[citation needed]}

Replacement U.S. Routes

From the state line at Wendover to Park City I-80 replaced U.S. Route 40. From Park City to Echo I-80 replaced a what was originally numbered U.S. Route 530 but later numbered U.S. Route 189. From Echo to the Wyoming state line I-80 replaced what was originally numbered U.S. Route 30S and later numbered U.S. Route 189.^{[citation needed]}

Reconstruction

I-80 began reconstruction of I-80 in August 2007, from State Street (US-89) east to 1300 East (former SR-181). Dubbed "Innovate 80," phase one of the project involved temporarily widening bridges on the eastbound side of the freeway to accommodate five lanes (three lanes in one direction and two in the other). The center lane was made reversible so there would be three westbound lanes during the morning commute and three eastbound lanes during the evening commute. Phase two began December of that same year, reconstructing the westbound lanes and replacing the bridges. The bridges were all constructed in advance and then moved to their respective positions, beginning with the Highland Drive bridge, the 900 East bridge, the 700 East bridge, the 600 East bridge, the 500 East bridge, the 300 East bridge, and the 700 East ramp, which extends over 600 East. The westbound bridge moves were completed July 31.

Phase three began in October 2008, involving the eastbound lanes and bridges being reconstructed from 700 East to 1300 East (traffic traveled on the new pavement on the north side of the freeway). However, the bridges on the eastbound lanes were replaced with the traditional manner, constructing them on the spot of where they would lay. When reconstruction is completed in November 2009, there will be five lanes in each direction (one of those being an auxiliary lane in between exits) compared to three lanes prior to 2007. As part of the project, sound walls were added, grade-level signage was replaced with overhead signs, on- and off-ramps were lengthened, and the State Street bridge received a bridge deck replacement, as opposed to a new bridge.^[2][3][4]

Exit list

County	Location	Mile[5]	#	Destinations	Notes
Tooele	Wendover	0.043	1	To SR-58  – Wendover	Westbound exit and eastbound entrance
		1.484	2	I-80 Bus. west / SR-58  – Wendover	Westbound entrance is via a U-turn at exit 4
		3.993	4	Bonneville Speedway
		41.278	41	Knolls
		48.940	49	Clive
		56.195	56	Aragonite
		61.837	62	Military Area, Lakeside
		69.521	70	Delle
		76.402	77	SR-196 – Rowley, Dugway
		83.358	84	SR-138 – Grantsville, Tooele
		88.395	88	Grantsville
		98.619	99	SR-36 – Stansbury, Tooele
Salt Lake		101.544	102	SR-201 east (2100 South) – Magna, West Valley City	Eastbound exit and westbound entrance
		104.273	104	SR-202 / Saltair Drive
	Salt Lake City	111.287	111	7200 West
		113.276	113	5600 West (SR-172)
		114.336	114	Wright Brothers Drive	Westbound exit and eastbound entrance
		115.374	115	Bangerter Highway (SR-154) – Salt Lake City International Airport	Signed as exits 115A (Airport) and 115B (Bangerter Highway) westbound; no westbound exit or eastbound entrance at North Temple
		116.488	115	North Temple – City Center, Temple Square	Eastbound exit and westbound entrance; former SR-186
		117.262	117	I-215 – Ogden, Provo
		117.862	118	SR-68 (Redwood Road)
		119.591	120	I-15 north – Ogden	West end of I-15 overlap; no exit number westbound
			121	600 South (SR-269 east) – Temple Square	Signed as exit 306 westbound
			122	900 South (SR-270 north)	Westbound exit and eastbound entrance
			122	1300 South	Signed as exit 305C eastbound
			122	2100 South (SR-201)	Signed as exit 305B eastbound
	South Salt Lake
			123A	SR-201 west – West Valley	Signed as exit 305A eastbound
		122.028	123B	I-15 south  – Las Vegas	East end of I-15 overlap; no exit number eastbound
		123.231	124	US-89 (State Street)
	Salt Lake City	124.125	125	SR-71 (700 East)
		125.072	126	1300 East – Sugar House	Former SR-181
		126.785	127	2300 East – Holladay	Eastbound exit and westbound entrance; former SR-195
		127.039	128	I-215 south (Belt Route)	Eastbound exit and westbound entrance
		127.685	129	SR-186 west (Foothill Drive) / Parleys Way
		128.619	130	I-215	Westbound exit and eastbound entrance Also contains a ramp back to I-80 westbound via northbound I-215
		129.888	131	Quarry Exit	Eastbound exit and westbound entrance
		130.399	131	(No name)	No eastbound exit
		131.869	132	(No name)
		132.583	133	(No name)	Eastbound exit and westbound entrance
		133.665	134	SR-65 north – East Canyon
		136.113	137	Lambs Canyon
Summit		139.413	140	Parleys Summit
		141.815	141	Jeremy Ranch
		142.847	144	View Area	Eastbound exit and entrance
		144.198	145	SR-224 south – Kimball Junction, Park City
		146.876	146	US-40 east (US-189 south) – Heber, Vernal, Provo	West end of US-189 overlap
		150.724	150	Tollgate Promontory
		154.972	155	SR-32 south – Wanship, Kamas
	Coalville	162.592	162	Coalville (SR-280)
		165.005	166	View Area	No access across I-80
		167.324	168	I-84 west – Ogden
		167.781	169	Echo
		169.505	170	Rest Area	No access across I-80
		178.703	178	Emory	Westbound exit and eastbound entrance
		184.126	185	Castle Rock
		187.767	187	Ranch Exit
		191.690	191	Wahsatch

References

Wikimedia Commons has media related to: Interstate 80 in Utah

Interstate 80
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Lincoln Highway
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