State Route 77 (also known as 400 South) is a primary transportation corridor for the communities of Springville and Mapleton and also serves as the main route to Hobble Creek Canyon. During the past decade, the area has experienced tremendous growth and projections indicate it will continue for the next several years.

In order to make long-term improvements to 400 South and the I-15 interchange, UDOT will:

• Rebuild the existing freeway interchange as a single-point urban interchange (or SPUI);
• Add an auxiliary lane along southbound I-15 between the two Springville interchanges;
• Widen 400 South to four lanes from I-15 to Main Street in Springville;
• Build a new bridge over the Union Pacific Railroad at 1500 West and replace the existing bridge at 400 West.

Once the project is complete, commuters, business owners and residents should experience:

• Improved traffic flow at the I-15 interchange;
• Improved travel times by separating all railroad crossings along 400 South and expanding the road to four lanes;
• Safe and efficient access to businesses and properties.

$89 million of federal and state funds have been allocated for this project.

**Note: As the project is nearing completion, please remember that 400 South remains closed from 1750 West to Main Street. Motorists should continue to use the alternative routes until 400 South has re-opened. Police are patrolling the area and are citing those who are driving the corridor. 400 South is still on schedule to be re-opened before Thanksgiving.

I-15 Interchange Area at 400 South (SR-77):
The safety walls (parapets) and bridge transition areas are complete. The bridge transition areas will be paved next week. Curb and gutter installation is complete. Landscaping and fence installation continues.

Crews will pave the area of 400 South from I-15 to the west frontage road. Flaggers and other traffic control measures will be in place to guide motorists through the work zone.

1750 West Area:
Crews have paved the first layers of asphalt along the south side of 400 South between 1750 West and I-15. The final layer will be paved by the end of the week. The raised median will be installed during the week. Motorists will be diverted around the work area.

The entrance from 400 South into the business area at the southwest corner of 1750 West (between Del Taco and IHOP) will reopen next week.

Signs and other traffic control measures are in place to guide motorists through the area. Please use caution when traveling through the intersection.

1500 West Area:
Paving operations are complete. Crews are installing fence, sidewalk and finishing the center medians.

400 West Area:
At the 400 West bridge, the top portions of the retaining walls will be completed during the weekend. Crews are building sidewalk from the bridge to 200 West. Once the concrete sidewalk has been placed, residents will need to park on the street for approximately one week to allow the concrete to cure properly.

Crews are building a new access point for residents along the south side of the bridge.

General Project Information:
The speed limit along I-15 is reduced to 55 mph through the construction zone. Please drive the posted speed limits along the detour routes and remember that fines for speeding in a construction zone are doubled.

General work hours are between 7 a.m. and 6 p.m. Monday through Saturday. Please use caution as you travel through the construction area as heavy equipment and crews are working nearby.

If you have questions regarding this project or would like additional information, feel free to contact us at 1.877.222.3757, via email at access@utah.gov or visit the project Web site at www.udot.utah.gov/access and click on the S.R. 77 project.