Interstate 15 in Utah

From Wikipedia, the free encyclopedia
Jump to: navigation, search

Interstate 15 marker

Interstate 15
Route information
Defined by Utah Code §72-4-107
Maintained by Utah Department of Transportation (UDOT)
Length: 400.592 mi[1] (644.690 km)
Major junctions
South end: I-15 towards Littlefield, Arizona
  I-70 near Cove Fort
US-50 near Holden and Scipio
US-6 in Santaquin and Spanish Fork
US-89 in Lehi, Draper, Bountiful, and Farmington
I-215 in Murray and North Salt Lake
I-80 in South Salt Lake and Salt Lake City
I-84 in Riverdale and Tremonton
US-91 in Brigham City
North end: I-15 towards Malad, Idaho
Highway system
SR-14 SR-16

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 the state, including St. George, Provo, Salt Lake City, and Ogden, the latter three being part of the urban area known as the Wasatch Front. It is the primary north–south highway in Utah, as the majority of the state's population lives along its corridor. The only Metropolitan Statistical Area in Utah not connected by I-15 is the Logan Utah-Idaho Metropolitan Statistical Area.

Contents

Route description[edit]

The interstate passes through the fast-growing Dixie region, which includes St. George, Cedar City, and eventually most of the major cities and suburbs along the Wasatch Front, including Provo, Orem, Sandy, West Jordan, Salt Lake City, Layton, and Ogden. Around Cove Fort, Interstate 70 begins its journey eastward across the country. The interstate merges with I-80 for about 3 miles (4.8 km) from South Salt Lake to just west of Downtown Salt Lake City and merges with Interstate 84 from Ogden to Tremonton. Along nearly its entire length through the state, I-15 winds its way along the western edge of a nearly continuous range of mountains (including the Wasatch Range in the northern half of the state). The only exceptions are when it passes through the mountains south of Cedar City and again north of Cove Fort.

Southern Utah[edit]

Washington County[edit]

Interstate 15 near New Harmony, south of Cedar City, looking north.

After having come from Las Vegas, Nevada and climbing through the Virgin River Gorge in northwest Arizona, I-15 in Utah crosses the border in Washington County. Heading north-northeast it continues with two lanes in each direction and maintaining this two-lane configuration until it reaches the Wasatch Front in the north central part of the state. Just past the border there is a port of entry on each side of the freeway. These ports of entry (weigh stations) are jointly operated by the states of Utah and Arizona and are the first northbound exit and last southbound exit on I-15 in Utah. The route turns north as it passes the Bloomington area of city of St. George and an interchange with SR-7 (Southern Parkway) before it crosses the Virgin River. (SR-7 provides access to the new St. George Municipal Airport.) Immediately north of the Virgin River, and partially spanning the Santa Clara River, is the new Dixie Drive interchange. After the interchange with SR-18 (Bluff Street) I-15 turns northeast again and passes the eastern side of downtown St. George, with an interchange with SR-34 (St. George Boulevard). These two interchanges are the southern and northern ends of the St. George I-15 Business Loop. From this point north I-15 generally follows the route of the Old US-91 to the northern border of Utah. (The route of Old US-91, in turn, followed the older Arrowhead Trail highway to Salt Lake City.) After leaving St. George, I-15 continues northeast and passes through the northern part of the city of Washington, with interchanges at 3050 East, Washington Parkway, and SR-9 (State Street). Northeast of Washington I-15 passes through the northwestern side of the town of Leeds, with one-way interchanges on the southwest and northeast ends of town. After passing trough the northwestern part of Toquerville, and an interchange with SR-17, I-15 resumes a more north-northeastern course as it ascends about a 1,000 feet (300 m) higher on the Colorado Plateau. Along the way it passes through the areas of Browse and Pintura, with interchanges at both, as well as two more ranch exits further northeast. After it ascent, it passes by the northwest corner of Zion National Park, with an interchange provide access to the Kolob Canyon are of that national park. Next is an interchange that provides access to New Harmony (several miles west) and Kanarraville (several miles to the northeast). This interchange is also at the border of Washington County and Iron County.

Iron County[edit]

Just after entering Iron County, I-15 reaches the southern most rest areas along it route within the state (with one each, northbound and southbound). After passing about a mile west of Kanarraville it reaches an interchange in Fort Hamilton. The freeway then briefly turns nearly east before turning north again to pass through the west side of Cedar City. The first interchange is a the southern end of SR-130 (Main Street) and the Cedar City I-15 Business Loop. Just north is the 200 South (SR-56), which provides access to downtown Cedar City as well as the Cedar City Regional Airport. After this interchange, the freeway turns northeast before the final Cedar City interchange with SR-130 (once again). This interchange is also the northern end of the Cedar City I-15 Business Loop, although no longer indicated so by signage. The freeway then passes by the eastern edge of Enoch, but without an interchange within that city. After an interchange within the area of Summit I-15 heads east-northeast before passing by the northwest edge of Parawon, with interchanges on the west (200 South/SR-143) and north (Main Street/SR-274) sides of town. After Parawon, the freeway curves back to a northeast course as it passes about a mile west of Paragonah and reaching an interchange on the north side of that city (SR-271. Continuing northeast it reaches the next pair of rest areas before and interchange with SR-20 and then a ranch exit (exit 100) before leaving Iron County.

Central Utah[edit]

Beaver County[edit]

As I-15 enters Beaver County the interstate turns northwest and winds its way through the mountain pass before heading north again to pass along the western edge of the city of Beaver. Both the southern and northern interchanges in Beaver include the I-15 Business Loop and SR-160—the city streets are Main Street on the south and 1400 North on the north. The freeway then heads slightly west until it passes by the west side of the community of Manderfield and curving back to a north-northeast course. After several miles there is an interchange with Manderfield Road before I-15 winds through another mountain pass and reaches the Sulphurdale interchange. After passing west of the ghost town of Sulphurdale it reaches the interchange with the western end of I-70. This interchange is on the border of Beaver and Millard counties.

Millard County[edit]

Extinct volcano cone near Fillmore, Utah off I-15.

North of the I-15/I-70 interchange, I-70 heads east to Richfield and on though Denver, Colorado, while I-15 continues north to pass by Cove Fort on the east and reach the Cove Fort (SR-161/Black Rock Road) interchange. Continuing on, I-15 meanders to the north-northeast before straightening out to the northeast southwest of Kanosh. The highway passes the east side of both Meadow and Fillmore and the west side of Holden. The route turns north briefly after bypassing Scipio to the east before turning northeast. Past the interchange with SR-28 (which serves as a connector to I-70 for southbound I-15 motorists),

Juab County[edit]

The freeway passes the eastern side of Nephi. The interstate then turns northwest and north, bypassing Mona and Rocky Ridge to the east.

Northern Utah[edit]

Utah County[edit]

The highway enters the Wasatch Front and the Provo-Orem metropolitan area as it turns northeast and enters the town of Santaquin, where US-6 begins its overlap with I-15. Exiting Santaquin, the highway turns north and then northeast again to enter Payson. Continuing northeast, the route enters Spanish Fork and gains one lane in each direction (the first time the interstate widens in the state). On the north side of Spanish Fork it intersects with US-6, where it turns north and gains one more lane in each direction, plus an additional express lane in both directions. This interchange also marks the northern end of the overlap with US-6. (The section between Spanish Fork and Lehi was recently rebuilt in 2010-12 as part of the I-15 CORE project.) Continuing north with four lanes, plus an Express Lane, in both directions, the route passes through the far west side of Springville, crossing SR-77 and SR-75, and then turns northwest south of Provo. The highway enters Provo and intersects with the southern terminus of US-189. The route continues northwest, bisecting the west side of Provo. After passing SR-114, it reaches Orem and passes SR-265. Right before the interchange at SR-241, the route turns northwest, entering Lindon. The route then exits Lindon and enters the south side American Fork, meandering between the west-northwest and northwest. The route straightens out the northwest and enters Lehi. In Lehi, US-89 begins an overlap with I-15 and passes SR-92. At this point the freeway narrows to just three lanes, plus and Express Lane, in both directions. Past Lehi, the interstate exits the Provo metropolitan area and Utah County to enter the Salt Lake City metropolitan area.

Salt Lake County[edit]

As the route enters the Salt Lake Valley from only one of three other points connecting Salt Lake County and Utah County (the others being SR-68 and Traverse Ridge Road), it turns northeast. Past SR-140 turns north. The route enters Draper and turns north-northwest past SR-71, where US-89 ends its overlap with the interstate. As it enters Sandy, the interstate widens to five lanes past SR-151. The route straightens out to the north. The route turns north-northwest past SR-209 and soon after enters Midvale. The route intersects I-215, a beltway running through many of Salt Lake City's suburbs, in Murray. Past this interchange, the route heads north and enters Murray. The route exits Murray and enters South Salt Lake, where an interchange with I-80 and SR-201 is located. The southern overlap of I-80 begins at this point. Also at this point, the highway enters Salt Lake City and a collector/distributor road begins at either side of the interstate, providing an exit to SR-201, 1300 South, and SR-270. After the collector-distributor ends, the route turns northwest to bypass downtown Salt Lake City. The route turns north after SR-269 and the northern end of the I-80 overlap. Past this point, the HOV lane ends and the highway loses one lane in each direction. Past the single-point urban interchange at SR-268, the interstate turns northwest and loses another lane. Before US-89, the road turns northeast briefly before turning north and entering Davis County.

An 80 mph speed limit sign in one of the test zones.

Davis County[edit]

The road enters North Salt Lake and I-215 defaults onto I-15 northbound. The route then gains two lanes in each direction and turns northeast. Past 2600 South, the highway turns north and enters Woods Cross to the west and Bountiful to the east. In West Bountiful, US-89 begins another overlap with I-15. The highway continues north and enters Centerville. The route exits Centerville and enters Farmington and turns northwest, US-89 exiting on its own separate freeway at an interchange (where the Legacy Parkway terminates). The route passes through Kaysville, Layton, and Clearfield before turning north, passing the west side of Hill Air Force Base. The road continues north through Sunset before turning northeast through Roy.

Weber County[edit]

The interstate exits Davis County and enters Weber County. In Roy, I-84 defaults onto I-15 northbound and an overlap begins. The highway enters Ogden, with the Ogden-Hinckley Airport located on the west side of the freeway. Past the airport, the route turns northwest before exiting Ogden and entering Marriott-Slaterville, where it straightens out to the north. Past Farr West, the freeway turns northwest briefly before turning north and exiting Weber County, the Ogden-Clearfield metropolitan area, and the Wasatch Front.

Box Elder County[edit]

I-15 warning sign for potentially drowsy drivers

The interstate continues north through Box Elder County. Brigham City, the county seat, is bypassed to the west by the freeway. Past US-91 (which continues to Logan and points northward), the route turns northwest to Tremonton, where I-84 separates, continuing northwest to Snowville, and I-15 turns north. The freeway continues in this general direction until the Idaho border. The last exit northbound is located at exit 398, 25800 North, which provides a connection to the town of Portage.[2]

History[edit]

The southwest-north alignment followed by I-15 was a major transportation corridor in the early 20th century, followed by auto trails such as the Arrowhead Trail (south from Salt Lake City), Evergreen National Highway (entire length), and Banff-Grand Canyon Road (north from Nephi). In 1926, when the numbered system of U.S. highways was created, this route was signed U.S. Route 91[3]

Legislative designation for I-15 within Utah, until 1977

The route of I-15 from St. George to Brigham City was built along the corridor of what was U.S. Route 91 from 1926-1974.[3] In 1974 I-15 was reasonably intact and US-91 was deleted, with the unfinished segments signed as Temporary I-15. The route north of Brigham City was built along the corridor of an old route of U.S. Route 191. This highway was also deleted once I-15 was reasonably intact. However, a different route in Utah was re-designated US-191 in 1982. [4]

Prior to 1977 the route of I-15 (and US-91 before) was also designated State Route 1 by the state of Utah, but no portion of the route was signed with this number.

In January 2009, the speed limit on two sections of I-15 together totaling 34 miles was raised to 80 mph as a "test," making Utah the second state to currently have speed limits greater than 75 mph. Since that time additional sections with higher speed limits have been added within Utah.


Exit list[edit]

County Location Mile[1] km Old exit[5] New exit Destinations Notes
Washington
St. George 2.135 3.436 2 2 SR-7 east (Southern Parkway) – St. George Municipal Airport
4.641 7.469 4 4 Brigham Road
5.619 9.043 [Note 1] 5 Dixie Drive
6.309 10.153 6 6 I-15 Bus. north / SR-18 north (Bluff Street) – SR-8 / SR-56 / SR-120, Santa Clara, Enterprise
8.652 13.924 8 8 I-15 Bus. south / SR-34 west (St. George Boulevard) – Dixie State University, SR-18, Santa Clara
Washington 10.910 17.558 10 10 SR-212 east (Green Springs Drive)
13.386 21.543 13 13 Washington Parkway
WashingtonHurricane line 15.888 25.569 16 16 SR-9 east (State Street) – SR-17 / SR-59 / US-89, La Verkin, Zion National Park, Kanab
Leeds 22.579 36.337 22 22 SR-228 northeast (Main Street) – Silver Reef Northbound exit and southbound entrance
23.703 38.146 23 23 SR-228 northeast-southwest (Silver Reef Road) – Silver Reef Southbound exit and northbound entrance
Toquerville 27.470 44.209 27 27 SR-17 south / SR-228 southwest – Leeds, La Verkin, SR-9, Zion National Park
  30.682 49.378 30 30 Browse
  31.861 51.275 31 31 Pintura
  33.435 53.808 33 33 Ranch exit (Snowfield)
  36.763 59.164 36 36 Ranch exit (Black Ridge)
  40.253 64.781 40 40 Kolob Canyons (Zion National Park)
  42.159 67.848 42 42 New Harmony, Kanarraville Former SR-58 (north-northwest) & former SR-144 (west)
Iron
  51.149 82.316 51 51 Hamilton Fort, Kanarraville Former SR-58 (south)
Cedar City 56.787 91.390 57 57 I-15 Bus. north / SR-130 north (South Main Street) – SR-14, Cedar Breaks National Monument, SR-56
58.837 94.689 59 59 SR-56 (200 North) – SR-18 / SR-130 / SR-148 / US-89, Cedar City Regional Airport
62.497 100.579 62 62 I-15 Bus. south (North Main Street) / SR-130 north-south – Enoch, Minersville, SR-14 / SR-21 / SR-56, Cedar Breaks National Monument Exit no longer signed as I-15 Business Loop
  70.263 113.077 71 71 Summit, Enoch Former SR-38
Parowan 75.183 120.995 75 75 I-15 Bus. north (200 South) / SR-143 south, SR-274, Cedar Breaks National Monument
77.801 125.209 78 78 I-15 Bus. south / SR-274 (Main Street) – SR-143 / SR-271, Paragonah
  82.253 132.373 82 82 SR-271 south (Main Street) – Paragonah, SR-274
  94.453 152.007 95 95 SR-20 east – US-89, Panguitch, Kanab, Circleville
  99.690 160.436 100 100 Ranch exit (Fremont Road)
Beaver
Beaver 108.745 175.008 109 109 I-15 Bus. north (Main Street) / SR-160 – SR-21 / SR-153, Milford, Junction
111.780 179.892 112 112 I-15 Bus. south (1400 North) / SR-160 – SR-21 / SR-153, Milford, Junction
  120.126 193.324 120 120 Manderfield
  125 125 Ranch exit Exit closed and removed
  129.438 208.310 129 129 Sulphurdale
BeaverMillard
county line
  132.170 212.707 132 132 I-70 east – Richfield, SR-161, US-50 / US-6 / US-89 / US-191, Denver, Colorado Western end of I-70
Millard
  134.875 217.060 135 135 SR-161 south (Black Rock Road) – Cove Fort, I-70
  138.073 222.207 138 138 Ranch exit
  146.493 235.758 146 146 Kanosh Former SR-133
Meadow 158.265 254.703 158 158 SR-133 south – Kanosh
Fillmore 163.370 262.919 163 163 I-15 Bus. north / SR-99 – SR-100
166.723 268.315 167 167 I-15 Bus. south / SR-99 – SR-100
  173.507 279.232 174 174 SR-64 north (Maple Hollow Road) – Holden, US-50, Delta, Ely, Nevada
  178.330 286.994 178 178 US-50 west – Holden, SR-100 / SR-125 / SR-136 / US-6, Delta, Ely, Nevada South end of US-50 overlap
  183.638 295.537 184 184 Ranch exit
Scipio 188.439 303.263 188 188 US-50 east – Salina, SR-24 / SR-260, Pueblo, Colorado North end of US-50 overlap
Juab
  202.189 325.392 202 202 Yuba Lake
  206.553 332.415 207 207 SR-78 east (Mill Crossing Road) – Levan, SR-28, Mills
Nephi 222.812 358.581 222 222 I-15 Bus. north (South Main Street) / SR-28 south – SR-132, Levan, Gunnison, US-89
225.248 362.502 225 225 SR-132 (100 North) – SR-116 / SR-117 / US-6 / US-89, Fountain Green, Moroni, Manti
  228.065 367.035 228 228 I-15 Bus. south / SR-28 – Nephi
  233.161 375.236 233 233 SR-54 west (300) – Mona, Rocky Ridge
Utah
Santaquin 242.447 390.181 245 242 Summit Ridge Parkway  – Rocky Ridge
244.788 393.948 248 244 US-6 west (East Main Street) – Eureka, SR-68 / SR-141 / SR-198 / US-50, Delta, Ely, Nevada South end of US-6 overlap
Payson 248.829 400.451 252 248 SR-178 east (800 South) – SR-198, Spring Lake
250.923 403.821 254 250 SR-115 (North Main Street) / SR-147 – Benjamin, Elk Ridge, Salem, Woodland Hills
  253.557 408.060 256 253 SR-164 (8000 South) – SR-115 / SR-147 / SR-198, Spanish Fork, Benjamin
Spanish Fork 257.246 413.997 260 257A SR-156 south (North Main Street) – SR-115 / SR-147 / SR-164 / SR-198, Palmyra, Salem, Woodland Hills
257.666 414.673 [Note 1] 257B US-6 east – SR-198 / US-89 / US-191 / I-70, Mapleton, Price, Manti North end of US-6 overlap
257.636 414.625 261 258 US-6 east Exit reconfigured as Exit 257B
Springville 259.963 418.370 263 260 SR-77 (400 South) – US-89 / SR-147, Mapleton, Palmyra, Lake Shore
261.781 421.296 265 261 SR-75 east (1400 North), Provo
Provo 263.358 423.834 266 263 US-189 north (University Avenue) / 1860 South – US-40 / US-89 / SR-52 / SR-265, Brigham Young University, Orem, Heber City
265.364 427.062 268 265 SR-114 (Center Street) – Provo Municipal Airport, US-89 / SR-265
Orem 269.072 433.029 272 269 SR-265 (University Parkway) – Utah Valley University, Provo, SR-114 / US-89 / US-189, Brigham Young University
270.660 435.585 274 271 Center Street - SR-114 / US-89 / US-189, Vineyard, Provo
271.670 437.210 275 272 SR-52 (800 North) – SR-114 / US-89 / US-189, Vineyard, Provo, Heber City
OremLindon line 272.767 438.976 276 273 SR-241 (1600 North/600 South) – SR-114, Vineyard, Pleasant Grove
Pleasant Grove 275.279 443.019 278 275 Pleasant Grove Boulevard - SR-114 / US-89, Lindon Just north of the Sam White Bridge
American Fork 276.436 444.881 279 276 SR-180 north (500 East) – US-89, Pleasant Grove, Cedar Hills, Highland
278.493 448.191 281 278 SR-145 (West Main Street/Pioneer Crossing) – US-89 / SR-68 / SR-74, Lehi, Saratoga Springs, Eagle Mountain
Lehi 279.701 450.135 282 279 SR-73 west (Main Street) – US-89 / SR-36 / SR-68 / SR-197, American Fork, Saratoga Springs, Eagle Mountain
282.311 454.336 285 282 US-89 south (2100 North/1200 West) / SR-85 west – SR-68 / SR-92, Highland, Bluffdale South end of US-89 overlap
283.985 457.030 287 284 SR-92 – Highland, Alpine
Salt Lake
Draper 288.272 463.929 291 288 SR-140 (14600 South)
289.832 466.439 293 289 SR-154 (Bangerter Highway)
291.358 468.895 294 291 US-89 north / SR-71 (12300 South) North end of US-89 overlap
Sandy 292.612 470.913 [Note 1] 292 SR-175 (11400 South) Opened late 2010
293.634 472.558 297 293 SR-151 (10600 South)
295.616 475.748 298 295 SR-209 (9000 South)
Midvale 297.920 479.456 301 297 SR-48 (7200 South)
Murray 299.005 481.202 302 298 I-215 (Belt Route)
300.300 483.286 303 300 SR-173 (5300 South)
301.653 485.463 304 301 SR-266 (4500 South)
South Salt Lake 303.414 488.298 306 303 SR-171 (3300 South)
304.691 490.353 307 304 I-80 east – Cheyenne South end of I-80 overlap
Part of the "Spaghetti Bowl" interchange
305.231 491.222 308A 305A SR-201 west – West Valley Part of the "Spaghetti Bowl" interchange
305.198 491.169 308B 305B 2100 South (SR-201)
Salt Lake City 306.315 492.966 309A 305C 1300 South
306.607 493.436 309B 305D 900 South (SR-270) Northbound exit and southbound entrance
307.500 494.873 310 306 600 South (SR-269) Northbound exit and southbound entrance
307.740 495.260 310 307 400 South Northbound exit and southbound entrance are HOV-only
308.079 495.805 311 308 I-80 west – Salt Lake City International Airport, Reno, Nevada North end of I-80 overlap
309.333 497.823 312 309 600 North (SR-268)
310.239 499.281 313 310 1000 North No northbound exit
311.792 501.781 314 311 2300 North/Warm Springs Road
311.947 502.030 315 312 US-89 south (Beck Street) Southbound exit and northbound entrance
Davis
North Salt Lake 313.128 503.931 315 312 US-89 north Northbound exit and southbound entrance
313.275 504.167 316 313 I-215 south (Belt Route) – Salt Lake City International Airport Southbound exit and northbound entrance
314.301 505.818 317 314 Center Street Southbound exit only
North Salt LakeWoods Cross line 315.243 507.334 318 315 2600 South (SR-93)
Woods CrossBountifulWest Bountiful line 316.870 509.953 320 316 SR-68 (500 South)
West Bountiful 317.557 511.058 321 317 400 North (SR-106) Northbound exit and southbound entrance
West BountifulBountiful line 318.024 511.810 321 317 US-89 south South end of US-89 overlap; southbound exit and northbound entrance
Centerville 319.512 514.205 322 319 Centerville (SR-105)
Farmington 322.916 519.683 325 322 SR-227 / Lagoon Drive Northbound exit and southbound entrance
324.026 521.469 326 324 US-89 north to I-84 east – South Ogden North end of US-89 overlap; northbound exit and southbound entrance
324.243 521.819 [Note 1] 324 Legacy Parkway (SR-67) Southbound exit and northbound entrance
324.741 522.620 327 325 SR-225 / Lagoon Drive Northbound exit is via exit 324
Kaysville 328.640 528.895 331 328 SR-273
Layton 332 330 I-15 Bus. (Main Street/Fort Lane) / SR-126 north Northbound exit and southbound entrance
Exit closed upon completion of Layton Parkway interchange (same exit number, but further north)
Business loop eliminated upon move
330.019 531.114 332 330 SR-126 north (Layton Parkway)
331.589 533.641 334 331 SR-232 (Hill Field Road) – Hill Air Force Base
332.883 535.723 335 332 SR-108 (Antelope Drive) – Antelope Island
Clearfield 334.066 537.627 336 334 SR-193 (700 South)
335.800 540.418 338 335 SR-103 (650 North) – Hill Air Force Base
Weber
Roy 338.447 544.678 341 338 SR-97 (5600 South) – Hill Air Force Base
Riverdale 339.133 545.782 342 339 SR-26 (Riverdale Road) to I-84 east Northbound exit and southbound entrance
340.227 547.542 343 340 I-84 east – Riverdale, Cheyenne South end of I-84 overlap; northbound exit is via exit 339
Ogden 341.948 550.312 344 341 SR-79 (31st Street)
343.067 552.113 345 342 SR-53 (24th Street) Northbound exit and southbound entrance
West Haven 343.852 553.376 346 343 SR-104 (21st Street, Wilson Lane) to Ogden City Center
Marriott-Slaterville 344.968 555.172 347 344 SR-39 (12th Street)
346.726 558.001 349 346 400 North
Farr West 349.361 562.242 352 349 SR-134 (2700 North)
Box Elder
  351.853 566.253 354 351 SR-126 to US-89 – Willard, Pleasant View
Willard 357.554 575.427 360 357 SR-315 – Perry
358.566 577.056 361 Port of Entry
360.542 580.236 363 Rest Area Northbound exit and entrance
362.020 582.615 364 362 US-91 (1100 South Street, I-15 Bus. north, I-84 Bus. west) to US-89
Brigham City 363.738 585.380 366 363 Forest Street
365.508 588.228 368 365 SR-13 (900 North Street, I-15 Bus. south, I-84 Bus. east)
Honeyville 372.734 599.857 375 372 SR-240 to SR-13 – Bear River
Tremonton 376.532 605.970 379 376 SR-13 (I-15 Bus. north, I-84 Bus. west) – Garland, Bear River
  379.334 610.479 382 379 I-84 west (SR-30 west) – Tremonton, Boise North end of I-84 overlap; south end of SR-30 overlap
Tremonton 381.037 613.220 383 381 I-15 Bus. south – Garland
  385.266 620.026 387 385 SR-30 east – Riverside, Logan North end of SR-30 overlap
  392.387 631.486 394 392 SR-13 south – Plymouth
  398.817 641.834 402 398 Portage Former SR-90
  •       Concurrency terminus
  •       Closed/former
  •       HOV only
  •       Incomplete access
  •       Tolled/ETC
  •       Unopened

Notes[edit]

  1. ^ a b c d The new exits numbered 5 (Dixie Drive), 257B (US-6), 292 (11400 South), and 324 (Legacy Parkway) did not exist prior to the exit renumbering as they were built after that project was completed

References[edit]

  1. ^ a b "Highway Reference" (PDF). Utah Department of Transportation. 17 Dec 2012. Retrieved 21 May 2013. 
  2. ^ "Google Maps". Google. 
  3. ^ a b Rand McNally Auto Road Atlas, 1926, accessed via the Broer Map Library
  4. ^ Utah Highways[dead link] by Dan Stober (personal website, last accessed 8 Aug 2007)
  5. ^ "Milepost Project". Utah Department of Transportation. [dead link]

External links[edit]

Route map: Google / Bing


Interstate 15
Previous state:
Arizona
Utah Next state:
Idaho