Tag Archives: U.S. 91

2013 Construction Season Nears the End

The leaves have turned, the first snow has fallen on the mountains, and the 2013 construction season is nearing an end. UDOT and contractor crews have completed more than 200 road construction projects statewide in 2013. By the end of the year, 216 projects will have been carried out state roads and Interstates from Plymouth to St. George and from Wendover to Vernal. Each one of these projects was designed to help accomplish one or more of UDOT’s strategic goals:

    Photo of crews working along I-80 in Parleys Canyon

    Construction crews installing a new 66″ concrete pipe along I-80 in Parleys Canyon.

  • Preserve Infrastructure
  • Optimize Mobility
  • Zero Fatalities
  • Strengthen the Economy

In 2013, most construction projects fell under the goal to Preserve Infrastructure. These repaving and rehabilitation projects will keep Utah’s roads in good condition and prevent the need for more costly repairs in the future. Maintaining our highways helps them last as long as possible, and benefits the economy by keeping people, goods, and services moving throughout the state.

In 2012, UDOT completed 229 projects with a total value of $2,783,444,049, which included the I-15 CORE and Mountain View Corridor projects. By comparison, the total value of projects scheduled for completion in 2013 is $631,489,082. To make the best use of a much smaller budget during the 2013 construction season, the department focused on maintaining and making minor improvements to Utah’s roads, rather than major expansion or reconstruction efforts.

During the 2013 construction season, UDOT has resurfaced or repaired pavement on more than 400 miles of Utah highways and roads, and has completed 12 bridge repair or replacement projects. Some notable projects that have been completed or are scheduled for completion this year include:

    Photo of new bridge over I-15 at St. George Blvd during construction

    Workers constructing a new bridge over I-15 as part of the new DDI at St. George Boulevard.

  • I-80 Culvert Installation: Workers installed approximately two miles of 6-foot-diameter concrete pipe along I-80 in Parley’s Canyon to replace the original drainage system constructed in the 1960s.
  • I-15 Widening: Crews widened an 8-mile section of I-15 in southern Utah County from two lanes to three this year to reduce congestion and accommodate future growth in the area.
  • St. George Boulevard Diverging Diamond Interchange (DDI): Workers are converting the existing interchange at I-15 and St. George Boulevard into Utah’s fifth operating DDI to improve the flow of traffic.
  • U.S. 89/91 Repaving: Crews repaved U.S. 89/91 in Cache County from Sardine Summit to Wellsville.
  • U.S. 89 (State Street) Widening: Workers widened and repaved a two-mile section of State Street between Orem and Pleasant Grove.
  • Bangerter Highway Continuous Flow Intersection (CFI): Crews completed a new CFI at the intersection of Bangerter Highway and 13400 South to improve traffic flow in southwest Salt Lake County. Utah leads the nation with 11 CFIs (there are only 20 total in the nation).
  • I-215 Concrete Maintenance: Workers repaired concrete on I-215 from S.R. 201 to North Temple to extend the useful life of the pavement.

Moving forward in 2014, UDOT will widen I-15 at the Point of the Mountain and in Davis County, as well as continue its aggressive focus on maintaining existing roads.

This guest post was written by Leigh Gibson from the UDOT Traffic team. 

Mileposts on Concurrent Highways

A few weeks ago we shared on Twitter and Facebook something that around here goes for common knowledge. To our surprise  a discussion followed and character limits made explaining things difficult.

It all started with a simple tweet, “Did you know milepost numbering begins in the south and west? So, MP 10 on I-15 is in the St. George area and I-80 Exit 115 is 115 miles from NV.” This has been such a handy thing to know, even away from our work environment, that we wanted to share it.

U.S. 6 and U.S. 50 are concurrent highways

Near the Nevada border U.S. 6 and U.S. 50 are concurrent highways.

This information on its own is pretty simple however there are a few places around the state that complicate things. In several locations we have highways that run concurrently like U.S. 89 and U.S. 91 between Brigham City and Logan. U.S. 6 is another good example. It runs concurrently with other routes in several places. There’s U.S. 50 near the Nevada border, I-15 in southern Utah County, U.S. 191 between Helper and Price, and I-70 from Green River to Colorado.

The surprising part to us was that our followers wanted to know what we do on these concurrent highways, what mileposts are used. To be honest, it’s kind of tricky.

The way it works is when a route joins another route the first route’s mileposts are used. Wait, what? That IS tricky. Let’s try it with an example. U.S. 91 begins at I-15 southwest of Brigham City and continues to the Utah-Idaho state line near Franklin, Idaho. U.S. 89 joins this route at 1100 South in Brigham City and then leaves the route at 400 North in Logan. For this distance U.S. 91’s mileposts are used but, U.S. 89 mileposts aren’t forgotten, we don’t pick up in Logan where we left off in Brigham City. Instead the mileposts include the 25 miles where U.S. 89 ran concurrent with U.S. 91, so, the milepost on U.S. 89 in Brigham City where it joins U.S. 91 is 433 and the milepost on U.S. 89 in Logan where it leaves U.S. 91 is 458.

There you have it, more than you ever wanted to know about mileposts. If you’re ever curious, we have highway reference reports for every interstate, U.S. Highway, and state Route on our website.