Tag Archives: construction

PRESS RELEASE: UDOT Uses High-Pressure Water Jets for Bridge Demolition

Hydro Demolition

For Immediate Release

 

UDOT Uses High-Pressure Water Jets for Bridge Demolition

Hydro demolition system uses 36,000 PSI water to efficiently remove bridge concrete, saving time and money.

 

SALT LAKE CITY (July 29, 2016) – The Utah Department of Transportation (UDOT) is utilizing an innovative system of high-pressure water jets to refurbish bridge decks on the I-215 project. This is one of the first times UDOT has used this hydro demolition process to reconstruct a bridge deck, and the first in the Salt Lake Valley. Hydro demolition will allow crews to be more precise while refurbishing the bridge, which saves time and money.

“While we are reconstructing I-215 with all-new concrete pavement, we also want to preserve what we have where possible,” said Oanh Le Spradlin, UDOT project manager. “Utilizing an innovative tool like hydro demolition helps us accomplish that on several bridges without spending the money on a complete rebuild.”

Hydro demolition is being used to remove the top few inches of the pavement on two I-215 bridges (3500 South and 3800 South), leaving much of the pavement and the reinforcing steel intact. Other demolition methods potentially could cause structural damage and require more extensive repairs, extending the schedule and increasing costs. Using hydro demolition to remove and replace the concrete bridge decks will extend the life of the bridges by 15 years.

The hydro demolition process utilizes a machine that moves over the bridge, spraying water to remove the top 3-4 inches of the bridge deck. This machine sprays water at up to 36,000 PSI – up to 24 times more powerful than the average home pressure washer. After a few passes, a cleaning crew comes through and sucks up all the water and material with a vacuum. The vacuum uses a water jet – similar to a dentist doing a teeth cleaning – to dislodge debris and then suck it up.

The hydro demolition machine sprays 15,000-17,000 gallons per 10-hour shift (about the amount needed to fill the average in-ground backyard pool) – which is collected on-site, pumped into tanks, filtered, and then sent to a treatment plant and recycled back into the system. All of the vacuumed materials are ground and reused as road base on construction projects.

During construction, all four lanes of traffic will remain open in each direction during the morning and evening commutes. Most work, along with the necessary lane restrictions, are scheduled at night to reduce delays for the more than 100,000 cars per day traveling this section of I-215.

Crews are making significant progress on the I-215 reconstruction – UDOT’s largest project of 2016:

  • New asphalt has been placed in the westbound lanes of I-215 from 300 East to Redwood Road.
  • Some concrete paving is already done in the freeway median from 4700 South to 3500 South.
  • The reconstructed ramp from southbound I-215 to eastbound S.R. 201 is now open. In addition, the ramp from northbound I-215 to westbound S.R. 201, along with the ramp from eastbound 4700 South to northbound I-215, are now closed through late August for reconstruction. Work on the I-215 project is scheduled for completion in fall 2017.

 

-UDOT-

Media Contact:
John Gleason
UDOT Public Information Officer
jgleason@utah.gov
Cell: 801-560- 7740

I-215 Ramp to S.R. 201 to Close for 30 Days Beginning Friday

For Immediate Release
 

I-215 Ramp to S.R. 201 to Close for 30 Days Beginning Friday

Other road construction restrictions scheduled in Salt Lake and Davis counties

 

SALT LAKE CITY (July 28, 2016) – The Utah Department of Transportation (UDOT) is scheduled to close the freeway ramp from northbound I-215 to westbound S.R. 201 Friday morning, July 29, beginning at 1 a.m. The ramp will remain closed for up to 30 days for reconstruction, so drivers should plan ahead and use I-15 or Bangerter Highway as alternate routes to access westbound S.R. 201.

This work is being completed as part of the I-215 reconstruction project, which will repave the freeway between S.R. 201 and 4700 South with new concrete, rebuild the bridges at the I-215/S.R. 201 interchange, and add new exit-only lanes in both directions.

Also as part of the I-215 project, the on-ramp from eastbound 4700 South to northbound I-215 is now closed until late August. Crews are reconstructing this ramp as well with new pavement. Drivers in the area should use Redwood Road or 3500 South to access northbound I-215.

Other projects that drivers should plan for this week include:

The Point Project – Southbound I-15 is scheduled to be reduced to one lane near 14600 South in Bluffdale for three nights –Friday, July 29Saturday, July 30; and Sunday, July 31. Lane closures will start as early as 8 p.m. each night, with southbound I-15 reduced to one lane by midnight. All lanes will reopen by 10 a.m. on Saturday and Sunday in time for the morning commute on Monday. Crews will be continuing bridge work as part of the I-15 widening project near the Point of the Mountain.

Drivers should also expect intermittent lane restrictions in both directions between Bangerter and S.R. 92 for pavement work on weekends through mid-August. 

I-15 in Davis County – Daytime lane closures are scheduled Monday through Friday for the next three months on I-15 in Davis County between the U.S. 89/Park Lane interchange in Farmington and the Layton Parkway exit. Crews will be adding a northbound auxiliary lane from Shepard Lane to Layton Parkway, and a southbound auxiliary lane from Layton Parkway to 200 North in Kaysville. In addition, new ramp meters will be installed at 200 North in Kaysville. Drivers should plan extra time and expect delays. If possible, consider alternate routes or use UTA FrontRunner.

Bangerter Highway at I-15 – The on-ramp from eastbound Bangerter Highway to southbound I-15 is scheduled to close from Friday, July 29, at 11 p.m., to Monday, Aug. 1, at 6 a.m. Crews will be repairing the concrete pavement on the ramp. Drivers should get on northbound I-15 and then use the 12300 South interchange to turn around and access southbound I-15.

Construction schedules are weather-dependent and subject to change. For the latest information on traffic restrictions during construction, visit the UDOT Traffic website (udottraffic.utah.gov) or download the UDOT Traffic app for iPhone or Android. Drivers can also follow UDOT on social media including Twitter, Facebook, and Instagram.

 

-UDOT- 

 

Media Contact:
John Gleason
UDOT Public Information Officer
jgleason@utah.gov
Cell: 801-560-7740

I-215, I-15 Freeway Closures Scheduled Sunday and Monday

Drivers on I-215 and i-15 through Salt Lake City be warned, several closures over the weekend may impact travel. The closures will primarily be at night, but drivers should still be aware and plan for alternate routes if they’ll be going through those areas.

I-215 is scheduled to be closed in both directions near 600 South on Sunday, June 26, at 7 a.m.

The freeway will be closed for approximately 20 minutes while Rocky Mountain Power crews hang new power lines across the road. Drivers heading to the Salt Lake City International Airport should allow extra time or consider using I-15 to I-80 as an alternate route.

I-15 in Springville will be closed on Monday night, June 27. Crews are scheduled to close all northbound lanes on I-15 at the 1400 North interchange (Exit 261) around midnight to install the crossbar for a new overhead message sign. All northbound lanes are expected to reopen by Tuesday, June 28, at 2 a.m. During this closure, all traffic will be detoured onto S.R. 75. Detour signs will direct drivers back to northbound I-15 via U.S. 89 and 1860 South in Provo.

In addition, UDOT advises drivers to plan ahead for the following projects:

I-80, Salt Lake City: Eastbound I-80 will be reduced to one lane, and westbound I-80 will be reduced to three lanes, between 1300 East and State Street for pavement repairs on Friday, Saturday and Sunday nights during the following times:

Friday, June 24, at 8 p.m. to Saturday, June 25, at 9 a.m.
Saturday, June 25, at 8 p.m. to Sunday, June 26, at 10 a.m.
Sunday, June 26, at 7 p.m. to Monday, June 27, at 5 a.m.

I-215 West Belt, Salt Lake City: The ramp from southbound I-215 to eastbound S.R. 201 is scheduled to close for up to 30 days beginning on Monday, June 27, as early as 1 a.m. Drivers are encouraged to plan ahead and use alternate routes, such as I-80.

During the closure, crews will reconstruct the ramp, completely removing the existing pavement and replacing it with new concrete. This work is being completed as part of the I-215 reconstruction project, which will repave the freeway between S.R. 201 and 4700 South with new concrete and add new exit-only lanes in both directions.

Construction schedules are weather-dependent and subject to change. For additional information on traffic restrictions during construction, visit the UDOT Traffic website (udottraffic.utah.gov) or download the UDOT Traffic app for iPhone or Android. Drivers can also follow UDOT on social media including Twitter, Facebook, and Instagram.

Slow Down for National Work Zone Safety Week

Work Zone

We are teaming up with the Association of General Contractors to celebrate National Work Zone Safety Week by reminding drivers to slow down and focus on the road, especially in work zones.

In 2015, a total of 2,849 motor vehicle crashes occurred in Utah work zones, resulting in 10 deaths. According to the Federal Highway Administration, speeding was a factor in 29 percent of all fatal work zone crashes in 2014, while distracted driving contributed to 16 percent. Currently there have been zero fatalities in Utah work zones in 2016.

“We are doing everything we can to keep our work zones safe for those who travel through them and those who work in them. But there’s only so much we can do. We need the public’s help,” said UDOT Executive Director Carlos Braceras. “Slow down, put down the phone, be alert, and obey the laws – especially when driving through a work zone.”

In addition, UDOT release a 30-second PSA to remind drivers of the risks UDOT workers face every day in the work zone. The PSA is told from the perspective of UDOT employees’ children, who want to see their parents come home safe every night.

“Work zones are places where real people do their jobs every day,” said Rich Thorn, president and CEO of the Associated General Contractors. “They have families and other people who care about them and want to see them come home safe. Knowing that should motivate drivers to be alert and slow down in work zones.”

Safety is the number one priority for each of UDOT’s more than 150 projects this year.  For example, the Point project requires every employee to participate in weekly safety training. Also, to further protect it’s 1,500 employees from traffic, crews placed more than 24 miles of concrete barrier, which is 50 percent more than the contract required, as this barrier provides a safer work zone for employees.

Work zones are dynamic places that can change from minute to minute. UDOT urges drivers to be safe and help reach Zero Fatalities by:

  • Driving the posted speed limit.
  • Paying 100 percent attention to the roadway, as lanes are often narrowed and shifted for construction.
  • Eliminating distracting activities, such as changing radio/music, using mobile devices (surfing, tweeting, talking, texting), eating and drinking, putting on makeup, and reaching while driving.
  • Minimizing lane changes within the work zone.
  • Merging into the proper lane well before reaching a lane closure.
  • Watching out for workers and their equipment in the work zone, as they can be especially hard to see at night.

UDOT encourages drivers to check the UDOT Traffic App (available for Android and Apple devices) to view current traffic conditions, locate work zones, or plan the best route before travel. Drivers are also encouraged to TRAVELWise around freeway construction by adjusting schedules to travel during less-congested times of day. Drivers can also take transit or telework to skip congestion and work zones.

The U.S. Department of Transportation and the Federal Highway Administration celebrate National Work Zone Safety Week each spring to bring national attention to motorist and worker safety in work zones. UDOT continues to participate in this observance in order to raise driver awareness, protect employees and reach Zero Fatalities in work zones.

I-215 Reconstruction Ranks No. 1 on UDOT’s 2016 Top 10 Projects list

Major projects will widen freeways, maintain highways and build new roads to keep Utah moving

Today we announced our Top 10 Projects list for the 2016 construction season. At the top of the list is the $105 million reconstruction of I-215 in western Salt Lake County, which is scheduled to begin in May and to be completed late next year.

More than 150 projects are scheduled this season statewide to improve mobility now and in the future. These construction projects are designed to enhance safety for drivers and pedestrians, improve the flow of traffic and keep Utah’s roads in good condition.

Three projects in this year’s Top 10 are in western Salt Lake County, an area that has seen tremendous population growth. According to the U.S. Census Bureau, three western Salt Lake County cities are among the fastest growing municipalities in the state (South Jordan, West Jordan and Herriman).

The following are UDOT’s Top 10 Projects for 2016:

#1 I-215—300 East to S.R. 201, $105 million (Construction starts May 2016; scheduled completion fall 2017) 

UDOT’s top project this season will reconstruct the I-215 west belt with new concrete pavement from S.R. 201 to 4700 South. Crews will repave the westbound lanes with new asphalt from 300 East to Redwood Road. In addition, this project will widen the freeway to add auxiliary lanes from S.R. 201 to 4700 South, and will reconstruct the two bridges over S.R. 201. All four lanes will remain open in the peak travel direction during commute hours, but motorists should plan for delays and consider alternate routes such as Bangerter Highway and I-15.


#2 I-15—The Point Project, $252 million (Construction continues from last season; scheduled completion this fall)

Crews continue widening the freeway and placing new concrete pavement on I-15 from 12300 South to S.R. 92. Major construction this season will happen primarily between 12300 South and Bangerter Highway, with finish work taking place at the southern end of the project area from Bangerter Highway to S.R. 92.


#3 Mountain View Corridor—5400 South to 4100 South, $180 million (Construction started in March; scheduled completion fall 2017)

UDOT is extending Mountain View Corridor farther north to 4100 South. This new construction will include two lanes in each direction, separated by a wide median (similar to the current open segment of Mountain View Corridor).

#4 I-15—Farr West to Brigham City, $52 million (Construction started in March; scheduled completion this fall)

Crews are widening a 13-mile section of I-15 to add a lane in each direction from 2700 North in Farr West to U.S. 91 in Brigham City. Most work is taking place in the freeway median, and traffic delays are expected to be minimal. This widening will improve traffic flow in the area.

#5 Bangerter Highway—600 West Interchange, $48 million (Construction starts this month; scheduled completion spring 2017)

UDOT is constructing a new freeway-style interchange on Bangerter Highway at approximately 600 West. This new interchange will enhance safety and reduce traffic congestion in the area near Bangerter Highway and I-15. UDOT is in the middle of a multi-year process to upgrade Bangerter Highway by replacing many of its existing intersections with interchanges, which will improve traffic flow.

#6 I-15—Hill Field Road Interchange and TTI, $28 million (Construction continues from last year; scheduled completion summer 2016)

UDOT is reconstructing the I-15 interchange at Hill Field Road, converting it to a single-point urban interchange to improve traffic flow and reduce delays in Layton. Last season, UDOT constructed new ThrU Turn Intersections on Hill Field Road on each side of I-15.


#7 I-15—St. George Blvd. to Green Springs Drive, $24 million (Construction starts this summer; scheduled completion late 2016)

Crews are adding two lanes in each direction to I-15 in St. George and building new underpasses to connect Red Cliffs Drive with Red Hills Parkway near Mall Drive. These new lanes will help meet the needs of the growing population in the St. George area, and make it easier for drivers to enter and exit I-15.


#8 I-15—Riverdale to Farr West, $14 million (Construction starts this summer; scheduled completion fall 2017)

UDOT is repaving I-15 in Weber County from the I-84 junction to 2700 North in Farr West. This new pavement will prolong the life of the freeway and provide a smoother ride for drivers.


#9 U.S. 189—Deer Creek Widening, $13 million (Construction starts this month; scheduled completion summer 2016)

Crews are widening a six-mile segment of U.S. 189 near Deer Creek Reservoir to two lanes in each direction, plus a center turn lane. Currently, U.S. 189 consists of one travel lane in each direction in this area. Adding these lanes will reduce congestion and enhance safety, specifically for recreational travelers.


#10 U.S. 6—Repaving near I-70, $6 million (Construction starts this summer; scheduled completion this fall)

UDOT is repaving a 10-mile section of U.S. 6 near the I-70 junction to improve the road condition for drivers and extend the life of the road surface.

Construction schedules are weather-dependent and subject to change. For the latest information on traffic restrictions during construction, visit udottraffic.utah.gov or download the UDOT Traffic app for iPhone or Android. Drivers can also follow UDOT on social media including Twitter, Facebook, and Instagram.

 

Improvements in Layton resume with traffic shift, bridge demolition

LAYTON — With Layton Improved construction resuming after a brief winter hiatus, the Utah Department of Transportation (UDOT) is advising motorists to be aware of traffic pattern changes in Layton around I-15 and the Hill Field Road interchange beginning Wednesday, Feb. 17, 2016.

The Hill Field Road project will move forward with the demolition of existing interchange bridges and construction of a new single-point urban interchange (SPUI). Workers will also finalize improvements to Hill Field Road.  Crews will be working 24 hours a day, six days a week, to finish the project as quickly, efficiently, and as safely as possible while maintaining traffic movement through the area. All traffic lanes will remain open on I-15, and speed limits will not be reduced through the construction zone. Please stay alert and use caution as you drive through the area.

Traffic Shift

Beginning Wednesday, construction crews will shift I-15 traffic in the area onto a detour bridge on the west side of the interstate. Southbound traffic will shift onto the detour bridge on Wednesday morning, Feb. 17. Northbound traffic will make the shift on Thursday morning, Feb. 18. The traffic shift will be in place in both directions through mid-April.

HillBridge_Phase1_V2

HillBridge_Phase2

Left turns on the off-ramps will be closed from now through July 2016, so motorists will need to follow the detour signs to turn right and travel through the ThrU Turns.

HillBridge_NoLefts_V2

Trucking companies that normally use Hill Field Road to access businesses west of Layton should plan to use the Layton Parkway Interchange (Exit 330) or Antelope Drive (Exit 332) to access those businesses and industries through July.

Bridge Demolition

Following the traffic shift, the section of Hill Field Road underneath I-15 will be closed on the evenings of Feb 20-21 so crews can demolish both bridges. It is suggested that motorists pay particular attention to  signage that day for detour routes. The new SPUI bridges are being constructed offsite and will be moved into place through UDOT’s innovative accelerated bridge construction process. The northbound part of the bridge will slide into place in early March, and traffic will switch onto the northbound bridge in mid-April. Crews will then complete the southbound bridge and will slide it into place in April.

What to expect when it’s completed

Once the project is completed in Fall 2016, congestion in the area will be reduced by five minutes, thanks to:

  • Four ThrU Turn intersections (already completed)
  • Three additional lanes on Hill Field Road
  • Wider bridges on I-15 over Hill Field Road
  • A single-point urban interchange (SPUI) that will merge traffic at the off-ramps, controlled by one traffic signal.

Since the completion of the ThrU Turns, traffic flow has improved and delays reduced in the area. UDOT and Layton City are working together to tailor solutions that meet the city’s unique traffic challenges, and we’re excited to see the full project benefits realized when all the improvements are completed in fall 2016.

For more information, call the Layton Improved team at (801) 904-4064, e-mail laytonimproved@utah.gov, or visit www.udot.utah.gov/LaytonImproved

HillField_BridgeClosure_Detour_V2

#WorkForUsWednesday for 2/3/2016

We’ve got a fresh batch of new openings for #WorkForUsWednesday! They come from just about every region in the state, and are from a variety of fields. We even have an internship this week!

You’ll have to go to the Utah State Jobs website to actually apply for those jobs. Simply filter the search criteria by department to (810) Department of Transportation, and you’ll be on your way.

Remember, some of last week’s jobs might still be open, so it’s best to check to see if there’s still the position right for you. Happy applying!

 

071515 NSTI Tour the Point

Recruitment #07593 – Electronic Technical Specialist II, R-1 Ogden
Opens 02/2/2016, Closes 02/15/2016
This is a journey level electronics technical specialist position performing complex electronics tasks. This position develops and implements a routine maintenance of traffic equipment, provides signal system repairs, inspects new signal construction, repairs various types of damaged vehicle and pedestrian detectors.

Recruitment #07626 – Transportation Technician II, R-4 Gunnison
Opens 02/3/2016, Closes 02/10/2016
Employees in this job perform difficult highway construction, maintenance or incident prevention tasks to insure safety and provide a consistent flow of traffic along major traffic routes.

Recruitment #07567 – Bridge Management Intern (Engineer Intern) Complex – Structures
Opens 1/28/16, Closes 2/4/16
Incumbent assists UDOT Structures staff in a variety of activities including bridge inspections, running bridge queries, and tracking information. This position will also assist with bridge collisions, providing training, and damage inspections. Incumbent will work with the Bridge Management Engineer, the Hydraulic Design Engineer and the Structures design group on several projects. This position is open to current civil engineering students. A letter from the College of Engineering must be uploaded to your profile no later than the closing date. 

Recruitment #07586 – Senior Leader’s Assistant (Administrative Assistant), Calvin Rampton Complex
Project Development Admin – Opens 1/29/16, Closes 2/5/16
This position reports to, and has a close and confidential relationship to the Project Development Director. Duties are not part of the general agency workload, but are exclusively in support of the director. The successful applicant is required to have senior level knowledge of agency policies, procedures, practices and office skills. Works independently and provides administrative support for a major statewide program.
Recruitment #07564 – Structures Project Engineer – Construction (EM I), Calvin Rampton Complex – Structures
Opens 1/29/16, Closes 2/16/16
The Structures Project Engineer – Construction provides leadership and guidance relating to structures design and construction activities within the Structures Division.   The Structures Construction Engineer works at the central UDOT office, in the Structures Design group and coordinates efforts with the Materials, Maintenance, and Construction groups.  This individual is assigned to work as a structure specialist to provide technical information and support to region customers in the construction and repair of structural elements.

UDOT to start #WorkForUsWednesdays

At the Utah Department of Transportation, we’re always looking for dedicated, skilled employees to Keep Utah Moving. In order to further that goal, we’ve decided that it is appropriate to increase the visibility of our job openings that are currently available.

Every Wednesday, we’ll post on our blog (and on our social media channels) the latest openings throughout the Department. You’ll have to go to the Utah State Jobs website to actually apply for those jobs. Simply filter the search criteria by department to (810) Department of Transportation, and you’ll be on your way.

8 in Tandem - Front

These jobs are those that are publicly available in the Department.

This week’s #WorkforusWednesday jobs:

Recruitment #07553 – Structural Steel Quality Assurance Tech (Eng Tech III) Complex – Central Materials,
Opens 1/27/16, Closes 2/3/16
The successful applicant will perform structural steel, welding, and structural coatings inspections and other miscellaneous material inspections, samplings and testings.  They will perform specialized testing of materials and analyze their physical and chemical properties to verify compliance with standards and to ensure that quality products and materials are used in building and maintaining state roadways.

Recruitment #06472 – Transportation Technician I – Seasonal and On-Call Positions, Region 2 (Salt Lake, Tooele, Summit Counties)
Open until filled
There are more than ten seasonal and on-call positions in various locations for applicants to choose from, and this is a fantastic way to “get your foot in the door” to a more permanent UDOT job. The selected applicant assists a highway maintenance crew in the performance of difficult highway maintenance or incident prevention tasks to insure safety and provide a consistent flow of traffic along major traffic routes. Duties include operating a variety of specialized heavy equipment including but not limited to ten-wheel dump trucks, roadway maintenance equipment, and/or sanders and snowplows, etc. The main purpose of this position is to remove snow from the state’s roadways.

Recruitment #07495 – Transportation Technician II, R-4, Huntington
Opens 1/25/16, Closes 02/08/16
Employees in this job perform difficult highway construction, maintenance or incident prevention tasks to insure safety and provide a consistent flow of traffic along major traffic routes.

Recruitment #07527 – Contract Administrator (Purchasing Agent II), Complex, Salt Lake City
Opens 01/25/2016, Closes 02/01/2016
Incumbents in this position follow procedures with minimal instruction in the preparation of consultant pool selection procurements and contracts to assure the flow of services and construction. They’ll follow qualifications-based selection processes regarding the procurement of engineering and engineering related services consultants.

Recruitment #07469 – Archaeologist (Research Consultant I), Region 2 – Salt Lake City
Opens 01/25/16, Close 02/07/16
The incumbent in this position serves as the lead region archeologist and is responsible for ensuring legal compliance on region projects with Section 106 of the National Historic Preservation Act (NHPA), Section 4(f) of the Department of Transportation Act, and other federal and state regulations relating to cultural resource management.

Vote Early, Vote Often for Brigham City DDI in Transportation Awards Competition

BRIGHAM CITY — UDOT’s 1100 South/U.S. 91 DDI project in Brigham City has been selected as a Top 10 finalist in America’s Transportation Awards, sponsored by the American Association of State Highway and Transportation Officials (AASHTO).

The northern Utah project is competing against projects from eight other states to win first place in the competition, which includes a cash prize that will be donated to a deserving charity in Utah.

An aerial shot of the project. White substance is geofoam

An aerial shot of the project. White substance is geofoam

“This Top 10 project is one more example of why UDOT has a reputation for being a national leader in quality and innovation,” said UDOT Executive Director Carlos Braceras. “I extend my congratulations to everyone who is associated with the project.”

Braceras suggested that anyone who would like to support the Brigham City project in the competition for best transportation project in the United States can participate in the voting for America’s Transportation Awards. “You can vote as many as 10 times per day per email address,” Braceras said.

Voting is currently underway online for the People’s Choice Award in the America’s Transportation Awards competition. To vote, go to http://nominate.americastransportationawards.org/Voting.aspx.

Voting will continue through Sept. 11.

A worker helps place geofoam, which helped "float the DDI" on geotechnically difficult terrain

A worker helps place geofoam, which helped “float the DDI” on geotechnically difficult terrain

The UDOT project is among 10 finalists in the competition. It is competing against projects from Florida, Kentucky, Indiana, Texas, North Dakota, New Mexico, South Carolina and Montana.

The Brigham City project qualifies in two top categories. One is the National Grand Prize, honoring the nation’s top transportation project as determined by a panel of industry experts and professionals. The other is the People’s Choice Award, which is voted on by the public through online balloting. The winner in each category receives a $10,000 donation to a charity or scholarship fund.

In order to be selected as a Top 10 project, it first had to be selected as a regional winner. The project won in the “Under Budget” category for an innovative design that could have cost as much as $100 million, but through out-of-the-box engineering and sensitivity to geological issues around the area, cost only $14 million.

With more than 20,000 vehicles a day — many of them trucks — originating throughout the region, this old, inefficient interchange was reducing the flow of the economic lifeblood of local communities to a trickle.

The 40-year-old interchange would frequently clog when vehicles at its ramps tried to enter the traffic flow.  The predominant west to south-bound traffic on US-91 was so steady during the day that it was nearly hopeless for other movements to occur.  This prompted risk-taking by trapped motorists at the ramps, and frequent crashes when they did.  Regional special events, like local university football games, would bring traffic to a complete halt.

UDOT traffic planners needed a solution, but the answer was elusive.  Soils adjacent to the Great Salt Lake were saturated by surface groundwater, making the interchange increasingly unstable.  Engineers wondered how to upgrade it without a massive redesign to accommodate the increasing pounding from trucks.  Similar rebuilds had cost upwards of $100 million – prohibitive under state budgets.

The answer: innovate.  Engineers used an innovation to solve the water issue — geofoam — which allowed the new interchange to “float” on soggy soils.  Another innovation — advanced bridge construction — replaced the interchange’s old bridge over I-15 while adding a completely new span in a little more than 10 months.  Finally, the innovative diverging diamond traffic pattern was added to the design to solve the problem of congestion and safety.

The result of all this innovation was an efficient interchange that allows all traffic movements to occur safely and congestion-free, and all for less than $14 million.

The first car goes through the Brigham DDI.

The first car goes through the Brigham DDI.

The America’s Transportation Awards competition is co-sponsored by the American Association of State Highway and Transportation Officials (AASHTO), the American Automobile Association (AAA) and the U.S. Chamber of Commerce. The top two national winners will be announced in September at the AASHTO Annual Meeting in Chicago.

Mountain View Corridor celebrates partnership with Rocky Mountain Power and Kern River Gas

The Utah Department of Transportation’s Mountain View Corridor (MVC) project celebrated an innovative partnership with Rocky Mountain Power and Kern River Gas on Tuesday, June 16. Representatives from the utility companies, team members from MVC and UDOT management were in attendance. Remarks were given by Joe Kammerer, MVC Project Director; Sharon Seppi; Rocky Mountain Power; Bob Checketts, Kern River Gas; and Shane Marshall, UDOT Deputy Director.

MVC Partnership Meeting 16 June 2015 (5)

UDOT, Kern River and Rocky Mountain Power have been on working on relocating utility lines in preparation for construction to begin on the new roadway from 5400 South to 4100 South in West Valley City, in the Spring of 2016. This included installing 5 miles of 36” diameter natural gas pipelines, 52 transmission line poles (345kv and 138kv).

Since the project began, there were few that imagined such extensive utility work could be completed and coordinated so seamlessly. However, this partnering celebration took place because of the excellent cooperation of all parties involved.

“This is a model for how transportation agencies like UDOT and utility companies can work together,” said Checketts, Vice President of Operations at Kern River Gas. He further explained that this partnership has now set the precedent for how Kern River is working with the Nevada Department of Transportation (NDOT) on another project.

A pin was created in commemoration and was given to all participants symbolizing the partnership between Rocky Mountain Power and Kern River Gas with UDOT.

061615 MVC pin

Mountain View Corridor currently has two lanes open in each direction from 16000 South to 5400 South and will eventually extend to S.R. 201 in Salt Lake County.

To learn more about the Mountain View Corridor project, visit udot.utah.gov/mountainview.

This guest post was written by the Mountain View Corridor Public Involvement team.