Route

• South End: Junction U-30
• North End: in Fielding

Route

• South End: In Tremonton, at Junction U-102, Bus-15, Bus-84
• North End: At a wye, with U-13, northeast of Tremonton

Route

• East End: Junction U-13 in Corinne
• North End: Junction I-84, exit 26

• U-13, in Corinne
• U-102, 6 miles south of Thiokol
• Box Elder County route, to Golden Spike National Historic Site, 1 mile south of Thiokol
• I-84, at exit 26

Route Notes
This route is unusual in that its mileposts start at the eastern end of the route and increase along a westbound road, . It's due to the fact that the route changes from east/west to north/south at Lampo Junction, the Promontory Summit turnoff.

Interesting things along the Route:

• Corinne - This sleepy town at the east end of the route, was once the Den of Iniquity of the Utah Territory. Founded by the Union Pacific as a town free of the Mormon sphere of influence, Corinne boasted saloons and taverns and other vices that were difficult to find in other towns in Utah. Mormon bishops counseled their wards to avoid Corinne, which was once one of the largest communities in the state.

  Today the the town is a shell of its former self, with no apparent commercial activity.

• Golden Spike National Historic Site - On May 10, 1869, crews of the Union Pacific Railroad, building westward from Omaha, met up with those from the Central Pacific, who were building eastward from Sacramento, at this lonely site on the north side of the Great Salt Lake, joining for the first time the east and west coasts of the United States. As Leland Stanford drove the golden spike into the tie, telegraphs carried the news across the country.

  The site served many years as the transfer point. Passengers on Union Pacific trains had to disembark and alight a CP train, and a roaring town rose form the sage highland to support the activity.

  Just after the turn of the 20th century, Central Pacific built a trestle across the Great Salt Lake, the so-called Lucin cutoff, bypassing the original route, and the site returned to its pre-heyday isolated state. During World War II, the original tracks were removed to recycle the iron for the war effort.

  In the 1960s, a local effort sought to commemorate the centenary of the golden spike and pushed for a national monument. Today, the area is called Golden Spike National Historic Site, and is administered by the National Park Service. In the summer there are daily reenactments of the joining ceremony with replica locomotives, and there is a visitor center, with interpretive displays and a self-guided auto tour which are open year round.

  Golden Spike National Historic Site is located just six miles west of U-83 at Lampo Junction.

  One more thing, you may remember from your eighth grade history class that the meeting of the rails occurred at Promontory Point -- this is wrong! Promontory Point is the southern tip of the peninsula which extends 20 miles into the Great Salt Lake, nearly touching Fremont Island. The meeting of the rails occurred at Promontory Summit, which was the pass at the head of the peninsula. Now you know. ;-)

• Thiokol Rocket Display - Morton Thiokol, the aerospace company which unfortunately may be most famous for manufacturing the O-rings that failed on the Challenger space shuttle in January 1986, actually has a long, glorious history developing rocket techonology for space exploration and for military applications. In front of their headquarters, on U-83 about 13 miles south of I-84, there are about a dozen rockets to explore. My kids enjoy climbing in the giant fuselages on display here.

Interstate 84 has its own page.

Legislated Route
Route 85 is not currently assigned

Legislated Route
§72-4-114.(5) SR-86. From Route 65 at Henefer westerly to Route 84.

Route

• East End: Junction U-65 in Henefer
• West End: I-84, exit 112

Route History
This route was once a part of US 30S.

Legislated Route
§72-4-114.(6) SR-87. From Route 40 in Duchesne northerly; then easterly through Altamont; thence southeasterly through Upalco; then east to Route 40 southwest of Roosevelt.

Route

• South End: Junction US 40, at the corner of Main and Center Streets in Duchesne
• East End: Junction US 40, at milepost 110.8, five miles south of Roosevelt

Legislated Route
§72-4-114. (7) SR-88. From the south end of the Green River Bridge south of Ouray northerly to Route 40 east of Ft. Duchesne.

Route

• South End: across the Green River from the town of Ouray, on the Ouray Indian Reservation
• North End: Junction US 40, at milepost 131.7

US 89 has its own page.

Legislated Route
Route 90 has been deleted from the legislative route descriptions.

Route

• West End: Junction U-13, at 200 South and Main in Brigham City
• East End: Junction US 89/91, on the grade east of Brigham City

• U-13, also signed as Business Loop 15/84
• US 89/91. Not a complete connection. U-90 can be accessed from US 89/91 southbound, and a flyover ramp carries eastbound U-90 on to northbound US 89/91. The other movements cannot be made.

See? U-90 really does exist! The route was deleted from the statutes in the mid 1990s, but it is very well-signed. At the point where this photo was taken, routes, 89, 90, and 91 all intersect.

U-90 is signed east/west, and it primarily travels along 200 South in Brigham City.

Route History:
This route is the historical routing of US 89/91 from the mouth of Brigham Canyon (at the eastern end of the present-day U-90) down into Brigham City.

Interesting Fact
The eastern end of the route is a junction of three consectively numbered routes: 89, 90, and 91. A very rare occurence anywhere in the country. Too bad, there is no sign assembly that features all three route shields, or I would have a picture of it. ;-)

Legislated Route
§72-4-115. (1) SR-91. From Route 15 south of Brigham City; then easterly through Brigham Canyon and Logan to the Utah-Idaho state line near Franklin, Idaho.

This is the current southern end of once-great US 91. Milepost zero is next to the onramp to southbound I-15 (and eastbound I-84) at exit 384, southwest of Brigham City. A road with such a past deserves at least an "END {91}" marker.

Route

• South End: Junction I-15 at exit 364 near Brigham City, Utah
  Historical South End: Junction Historical US 6 and US 101 bypass in the traffic circle at Pacific Coast Highway and Lakewood Blvd in Long Beach, California
• North End: Junction US 26, south of Idaho Falls, Idaho, east of I-15 exit 113
  Historical North End: Canadian border, at Sweetgrass, Montana, connecting to Alberta-4

• South End: Junction I-15 at exit 364 near Brigham City
• North End: Idaho State Line, south of Franklin, Idaho, connecting to US 91 in Idaho

Route History
For four decades, before construction of I-15, US 91 was the main street of Utah, following the route blazed by the pioneers, connecting Mormon outposts from Las Vegas to Idaho Falls. It entered Utah near its southwestern corner and passed through St George, Cedar City, Beaver, Fillmore, Nephi, Santaquin, Provo, Salt Lake, Farmington, Ogden, Brigham City and Logan.

With only a couple of exceptions, the route of US 91 through Utah was nearly identical to present day I-15's route. The major deviation from the routing of I-15 was the section of US 91 which still survives north of Brigham City where US 91 turns northeastward through Logan. From Brigham City, I-15 planners chose to follow the route of old US 191, which is probably the only reason that even this small section of US 91 has been allowed remain.

Scan courtesy of Alan Hamilton

This scan from a 1938 map shows the routing of US 91 south of St. George in the days before I-15. Notice how the route reversed itself, meaning northbound traffic was actually headed south as it entered St. George. When the freeway was constructed in the 1960s, builders shortcutted the distance by following the route of the Virgin River between Littlefield, Arizona, and Bloomington.

The other significant deviation was south of St George; from Littlefield, Arizona, old US 91 turned due north, entered Utah, and then dropped into St George from the northwest, actually travelling travelling southeastward for about 10 miles. I-15 was later routed more directly between Littlefield and St George, being threaded through the Virgin River Gorge, and remaining in Arizona for 15 miles more than US 91 had in that state.

There were smaller deviations of US 91 through Hurricane and north of Cove Fort which were bypassed by the high speed freeway. But, for the most part, the routing of I-15 supplanted US 91.

Prior to 1970, there was also a state route numbered 91: U-91 existed as a short route from Fairview to Milburn in Sanpete County. Today, legislative route numbers have been aligned with posted route numbers, so there could not be another U-91 as long as US 91 exists in Utah.

Interesting things along the Route:

• The Logan Tabernacle - In the heart of Logan, on the east side of the street.
• Thrust-Air 2000 a prototype rollercoaster at Dave Checketts' S&S Amusements on the north side of Logan. Located about 1/4 miles west of the highway at about 2400 North, you'll see the white coaster track jutting into the sky with vertical ascents. The company, which builds free-fall attractions and constructed the one atop the Stratosphere Tower in Las Vegas, build this short track to demonstrate the power of its air compression acceleration system which rockets the test vehicle from 0 to 80 mph in 1.8 seconds. Unfortunately the facility is not open to the public, but it certainly is a sight to see -- so seemingly out of place among the farmlands of the Cache Valley!

More than one person on MTR has opined that the US 89/91 continues all the way to I-15/84. Not so! US 89 turns south on the old road, two miles east of the freeway, while US 91 continues straight ahead to the freeway...just as the signs in this jumble show.

It's exit 364 from I-15 and I-84. Since milepost 0 is placed at the entrance/exit ramps on the western side of the freeway, the measurement for the centerline of the freeway is at milepost 0.1.

As if all of those routes weren't enough, Business Loops 15 and 84 head north into Brigham City along with U-13. That dual business loop appears to leave the interstate at exit 364, along with US 91, but there is no signage indicating any business loop for Brigham City anywhere along the freeway. The business loop signs first appear at this intersection.

Also, this intersection is the only place in Utah where three consecutively numbered routes intersect.

Legislated Route
§72-4-115. (2) SR-92. From Route 15 near Point of the Mountain east through American Fork Canyon to Route 189 in Provo Canyon.

Route

• West End: I-15, at exit 287
• East End: Junction US 189, near Bridalveil Falls

• Junction I-15, at exit 287, near Lehi
• Junction U-74, in Alpine
• Junction U-146, at the mouth of American Fork Canyon
• Junction US 189, south of Sundance Resort

It's best to consider the route in two sections: first, the straight east/west section along 11000 North in Utah, providing a commuter route from the communities of Alpine and Highland to I-15 and Salt Lake City; and second, the mountainous portion east of Highland past Timpanogos Cave and Sundance to US 189, known as the Alpine Loop.

The Alpine/Highland section is a fast two-lane road, being widened to four lanes in areas. The road is heavily trafficked by commuters in the bedroom communities of northern Utah County.

The Alpine Loop is a twisting, narrow roadway which traverses the high country on the back side of Mount Timpanogos. It is closed in winter between U-144 and Sundance (from milepost 12.3 to mile 24).

• The Micron plant - In 1995, Micron, a computer chip manufacturer based in Boise, Idaho, announced plans to build a huge facility along U-92 north of Lehi. The city of Lehi bent over backwards to please the company, offering tax incentives and zoning exceptions, to lure the company and the 1,000 jobs and the accompanying tax revenue it would bring to the city. In early 1996, construction continued around the clock, bringing complaints from neighbors about the noise and dust, while the city encouraged them to be patient -- the revenue was worth the relatively short inconvenience. Then, that same summer, before construction was completed, the bottom fell out of the chip market, and Micron halted the project. Today, football-field sized plants sit nearly idle, clearly visible just north of U-92 about three miles east of I-15.

• Timpanogos Cave National Monument - Actually there are three separate caves, connected by tunnels bored into the north side of Mount Timpanogos. The caves are reachable by a strenuous 1 1/4 mile hike rising more the 1,200 feet vertically from the visitors center. There is no admission charge to enter the monument or to stop at the visitors center, but it costs $6.00 for a guided tour of the caves. The visitors center is open year-round but cave tours are offered only between mid May and early October, because the trail up to the caves is icy in the winter. Call ahead for information: (801) 756-5238.

• Cascade Springs - Reachable from the mipoint of the Alpine Loop via FR 114, Cascade Springs is a day-use area in the Uinta National Forest. The area consists of a series of loop walks through greenery around and boardwalks over ponds created by the natural springs located here. Excellent place for a picnic.

• Sundance - Actor Robert Redford's crown jewel resort area on the back side of Mount Timpanogos. There are cabins, a four-star restauarant, and skiing in the winter. Located three miles north (west) of US 189 on U-92.

Toll facilities
The US Forest Service charges a $3.00 per car facilities fee for all vehicles travelling U-92 between the mouth of American Fork Canyon (just east of U-146) and Sundance.

Legislated Route
§72-4-115. (3) SR-93. From the on- and off-ramps on the west side of Route 15, east along the south city limits of Woods Cross to Route 89.

Route

• West End: Junction I-15, at exit 318
• East End: Junction US 89, at 2600 South in Bountiful

• I-15, exit 318
• US 89, at 2600 South in Bountiful

Route History:
U-93 was originally assigned to the road which today is the main park road in Arches National Park. At the time, Arches National Monument included only what is today called the "Windows Section", and U-93 connected the main road, then US 160 but now called US 191, with the monument. U-93 first appeared on state highway maps sometime between 1936 and 1940.

Legislated Route
§72-4-115. (4) SR-94. From Route 70 northeasterly to Thompson.

Route

• South End: Junction I-70, at exit 185
• North End: at old US 6/50 in Thompson

• Junction I-70, at exit 185

Legislated Route
§72-4-115. (5) SR-95. From Route 24 east of Hanksville southerly crossing near the confluence of the Dirty Devil and Colorado Rivers to a point 4.3 miles south of Blanding on Route 191.

Route

• West End: Junction U-24 in Hanksville
• East End: Junction US 191 near Blanding

• Junction U-24 in Hanksville
• Junction U-276, in Garfield County
• Junction U-276, in San Juan County
• Junction U-275, to Natural Bridges, 32 miles west of US 191
• Junction U-261, 29 miles west of US 191
• Junction US 191, 4 miles south of Blanding

Interesting things along the Route:

• Lake Powell - created by the construction of Glen Canyon, completed in 1963, it took 17 years for the reservoir to fill to its 26 million acre-feet capacity. Today the lake is a part of Glan Canyon National Recreation Area, and is a popular spot with sportsmen from throughout the southwest for fishing, skiing, and houseboating. Environmentalists have long criticized the Glen Canyon Dam project because it stopped flooding through the Grand Canyon downstream, and they claim that lack of the natural seasonal floods has changed the wildlife. In March 1996, Secretary of the Interior, Bruce Babbitt, opened the floodgates at the dam, recreating a flash flood downstream, inundating sandbars, and allowing biologists to study the impact.

  There is a nacent, but growing movement to drain the lake and restore the natural conditions downstream. In my opinion, the idea is crazy, but its possibility cannot be entirely ruled out as the powerful Sierra Club is behind the movement. Such an action would erase one of the southwest's crown jewel recreation areas.

  Lake Powell is named after one-armed explorer John Wesley Powell who, in 1869, floated down the Green and Colorado Rivers, charting the rugged lands and harsh environments through which they flowed. Powell concluded and reported to Congress that the Colorado River could not be settled. One hundred years to the day after the Powell expedition passed through Glen Canyon, the Glen Canyon Dam was officially dedicated.

  U-95 crosses the northern arms of Lake Powell at Hite Crossing over the Colorado River and Dirty Devil Stream about three miles west.

Photo generously provided by Oscar Voss

The Hite Crossing Bridge over Lake Powell on U-95

Route 95 Links
The Bicentennial Scenic Byway by Max Bertola

Legislated Route
§72-4-115. (6) SR-96. From Clear Creek northerly through Scofield to Route 6 near Colton.

Route

• South End: The town of Clear Creek, 10 miles south of Scofield Reservoir
• North End: Junction US 6, 6 miles east of Soldier Summit

• Junction U-264, midway between Clear Creek and Scofield
• Junction US 6

• Scofield Reservoir - in Scofield State Park, a favorite for boaters and fishermen

Legislated Route
§72-4-115.(7) SR-97. From Route 37 in Hooper east on 5500 South and 5600 South in Roy to the Hill Air Force Base Northwest gate.

Route

• West End: At 5000 West (U-37) and 5500 South in Hooper
• East End: Hill Air Force Base, at the Air Museum, just east of I-15 exit 341

• Junction U-37, at 5000 West and 5500 South in Hooper
• Junction U-108, at 3500 West and 5500 South in Weber County
• Junction U-108, at 3500 West and 5600 South, one block south of previous junction
• Junction U-126, at 1900 West and 5600 South in Roy
• Junction I-15, at exit 341

Route Notes

This intersection of 5600 South and 3500 West was rebuilt in 2000, so that 5600 South, which had ended here in a "T", continues across to the west and then jogs one block northward to 5500 South. U-97 which had ended here along with 5600 South, now extends west.

Due to actions taken by the state legislature in its 2001 session, this route is now twice is long as it used to be. Senate Bill 26 eliminated U-98, and placed its 3 route miles under U-97's description.

This action was long overdue. Previously, U-98 ran from U-37 in Hooper along 5500 South to U-108 at 3500 West, where it ended. U-97 began one block south of that location, on 5600 South and 3500 West. It made no sense that the east end of one route was one block away from the west of another. Especially since both of the routes ran on virtually the same alignment.

Prior versions of this website ranted about the silliness of the situation, and it appears that someone may have taken notice. The 5500/5600 South corridor in Weber County now has a single route number for the entire six miles from Hooper to Hill AFB.

Interesting things along the Route:

• Hill Air Force Base Museum - A nice museum showcasing aircraft from the past 75 years of aviation history, located right at the eastern end of this route, and easily accesible from I-15 at exit 341. The museum is free.

Legislated Route
Route 98 is not currently assigned.

Route Notes:
Route 98 was rolled into the western half of a lengthier U-97 by SB26 in 2001. See the description of U-97 for more detailed information.

Route History
Until 1970, U-98 was assigned to a road in Iron County which goes north from Beryl Junction to Beryl. That road is no longer a part of the state highway system.

Legislated Route
§72-4-115. (8) SR-99. From Route 15 south of Fillmore northerly through Fillmore to Route 15.

Route

• South End: I-15, exit 163
• North End: I-15, exit 167

Route History
This route used to be part of US 91 before I-15 was constructed. I-15 opened in the Fillmore area in 1972.

Prior to 1970, U-99 was assigned to road in Millard County which goes northward from Delta toward the World War II Topaz Relocation Camp. That road is no longer a part of the state highway system.

Interesting things along the Route:

• Territorial State House - For a time, before Utah attained statehood, the territory's capital was seated in Fillmore. Construction began on this building in 1851, and the full territorial legislature, all 33 solons, actually met here for a complete session in 1855. Partially, this was done by the US government in an attempt to reduce the impact of the Mormons on the governance of the territory, with the full acquiescence of LDS Church prophet and territorial governor Brigham Young, who employed a strategy of appeasing the feds. The statehouse is located in the center of Fillmore, in a city park labelled on the guide signs as a "rest area."
• Fillmore, Millard County - There aren't too many places in the country which were specifically named after our thirteenth president, but Millard County and its seat, Fillmore, can be counted as two among those few. Millard Fillmore, who ascended to the presidency upon the death of Zachary Taylor in 1850, never lived in Utah, but he did make life a little easier for its 19th Century settlers.

  After two decades of harsh treatment from federal authorities, the pioneers found in Fillmore a president who seemed content to leave them alone. In fact, Fillmore appointed their leader, the president and prophet of their church, Brigham Young, to be the first governor of the territory. The governor responded in kind by naming a county and a city after the president, and by designating that city to be the territorial capital.

  Alas, Fillmore chose not to run in 1852 and was succeeded by Franklin Pierce, who was no friend of the Mormons. So the Mormons' brief thaw in the terse relationship with Washington was ended, but Millard County and Fillmore remain on the map of Utah as a tribute to the 13th president.

Links
Canonical List of Business Loops by Andy Field

Legislated Route
§72-4-115. (9) SR-100. From Route 99 in Fillmore westerly then northerly to Route 50 west of Holden.

Route

• South End: Junction Business Loop 15 in Fillmore
• North End: Junction US 50, between McCornick and Greenwood

• Business Loop 15, in Fillmore
• I-15, no direct access from U-100 to I-15; you must use the Business Loop from exit 163 or exit 167
• Junction US 50