Construction Update | September 5, 2025 

5600 South – Upcoming Northbound Traffic Shift

Beginning Monday, Sept. 15, crews will shift east and westbound traffic north along 5600 South (SR-97) to connect the roadway on the south side at the Union Pacific Railroad (UPRR) bridge near 2500 West. Drivers may experience intermediate delays from this work.

Upcoming Work

Riverdale Exit Closure - Sept. 22-26

From Monday, Sept. 22 through Friday, Sept. 26, the Riverdale exit (Exit 338B) will be closed to accommodate milling, paving, and barrier work near Riverdale Rd.

Driver Reminders:

• Drivers can use Freeway Park Dr. to reach their Riverdale destinations
• Expect delays during this closure- please plan extra travel time

No Left Hand Turns at 1900 West

With the Thru-U temporary configuration in place, crews are moving into the next phase of I-15 interchange construction.

What Drivers Need to Know:

• At the intersection of 1900 West and 5600 South, left-hand turns will no longer be allowed
• Drivers will use the Thru-U to reach their final destination
• This change will be in effect from,Tuesday, Sept. 2 at 7 p.m. through Saturday, Sept. 6 at 7 a.m.

Important: Drivers, please be aware of this temporary traffic pattern change and plan extra travel time.

I-15 Northbound Temporary Lane Split

Last weekend, crews implemented a I-15 northbound lane split just past the 5600 South northbound off-ramp to the Riverdale Rd. bridge to complete work on the middle section of I-15.

Driver Reminders:

• A northbound lane split beginning just past the 5600 South off-ramp and continue to the Riverdale Rd. bridge.
• Drivers can use either the left or right lane in the split— both options reconnect near the Riverdale Rd. bridge.
• The split will remain in place for approximately 3-weeks while crews replace center panels and finish work on the new I-15 and 5600 South structure.

Drivers plan ahead and use alternate routes. Review the graphic below for lane split information.

Ongoing Work

5600 South Corridor

Work is progressing along the 5600 South corridor as crews complete curb, gutter, and driveway tie-ins. Coordination with property owners will continue throughout this phase of construction. Occasional road closures may be necessary to while crews pour and finish concrete surfaces such as sidewalks, driveways and curbing.

Upcoming & Current Street Closures:

• 3000 West (North side) – Closed August 13 – for approximately 3-weeks*
• 2100 West (North side) – Right turn in, right turn out only from 5600 South through mid-September*
• 2700 West (South side) – Closed Sept 8. – for approximately 2-weeks*
• 3275 West (North side) – August 25 – for approximately 2-weeks*
• 3375 West (North side) – Closed Sept. 8 – for approximately 2-weeks*
• 2050 West – Closed through summer*

Drivers use alternate routes and expect minor delays.

Pedestrian Safe Walking Routes

Temporary 3-Month Traffic Pattern at I-15 & 5600 South (SR-97)

As part of the I-15 interchange construction, a 3-month, temporary traffic pattern – commonly referred to as a "Thru-U"– is now in effect at 1900 West and 5600 South between 2050 West and Wardleigh Rd. This configuration will be in place for approximately 3-months.
 

Key Driver Reminders:

• No left turns from 5600 South onto 1900 West (east and westbound)
• Additional left turn restrictions at I-15 off ramps
• Stay alert for new traffic pattern
• Plan ahead to reach your final destination safely

Watch the video below to learn how to navigate the temporary Thru-U.
 

5600 South (SR-97) – Bridge Beam Installation

Earlier this month, crews successfully installed bridge girders (beams) on the south side of 5600 South bridge over the Union Pacific Railroad (UPRR). This operation was completed over night, each night throughout the weekend, and required long hours, a large support crew, and utilitizing state-of-the-art equipment to ensure a safe and efficient installation.

More details of the bridge installation will be shared in future updates.

Crews completed preparation activities to install the new bridge girders over the UPRR bridge.

I-15 NB Off-Ramp and Riverdale Rd. Access – Exit 338

Last month, the I-15 northbound off-ramp at Exit 338 (exit 338B) shifted onto the new overpass, which will provide direct access to Riverdale Rd.

What to Expect:

• A new traffic pattern over the completed overpass
• Updated overhead signage
• New lane markings
• Adjusted traffic flow into Riverdale
• Drivers, be alert for changes in overhead signage, lane markings and traffic flow.

Improved Flow and Faster Access

This new traffic pattern is designed to improve traffic flow through the area. By shifting the off-ramp onto the new overpass, drivers will no longer need to stop at the previous ramp intersection, reducing congestion and travel delays. The direct connection to Riverdale Rd. allows for smoother, more efficient movement of vehicles–resulting in a safer and more streamlined driving experience.

Know Before You Go! Download the UDOT Traffic App Today!
The UDOT Traffic app provides commuters and travelers with mobile access to information for the State of Utah roadways. 

The available information includes:

• Emergency and incident notifications
• Construction alerts
• Anticipated delays and lane closures
• Road conditions
• Travelwise alerts
• A zoomable, scrollable map-based display

*download available for iPhone and Android devices

Learn more about Travelwise Tips here.