ST. GEORGE — Access to Exit 16 from Interstate 15 and state Route 9 will be closed overnight starting Friday evening as road crews work to seal the asphalt on the roadway under the highway bridges. The closure and detours will begin at 8 p.m. Friday and conclude by 7 a.m. Saturday.
According to the Utah Department of Transportation, the closures are as follows:
On the evening of Friday, Oct. 25, construction crews will be sealing the asphalt on SR-9 under the I-15 bridge. In order to complete this task, the following traffic movements connecting SR-9 to I-15 will be closed and detours implemented:
- I-15 southbound to SR-9 eastbound / DETOUR: Use Exit 13 (Washington Parkway) and Telegraph Street.
- SR-9 westbound to I-15 northbound / DETOUR: Use Telegraph Street and Exit 13 (Washington Parkway).
- SR-9 westbound to I-15 southbound / DETOUR: Use Telegraph Street and Exit 13 (Washington Parkway).
The Exit 16 improvement project began Feb. 11 and is anticipated to run into December. It is the latest in a series of improvements recommended by a 2013 study that focused on the I-15 corridor from the state border to milepost 16.
Current work includes:
- I-15 paving, microsurfacing (protective seal coat to extend the life of pavement) and restriping.
- Paving on south side of SR-9.
- Installation of concrete barrier on I-15, ramps and SR-9.
- Curing of concrete on I-15 southbound bridge deck.
- Formation of and concrete pour for approach slabs (transition between roadway pavement and the bridge).
Improvements to Exit 16 include:
- Addition of a second lane to the I-15 northbound exit ramp to eastbound SR-9.
- Addition of a second lane to the SR-9 westbound entrance ramp to southbound I-15.
- Addition of another lane on westbound SR-9 between Coral Canyon interchange and I-15 entrance ramp.
- Addition of a third southbound lane on I-15 between SR-9 and Exit 13.
- Improvement of curves and speeds on all ramps.
- Reconstruction to widen and lengthen bridges on I-15 over SR-9.
- Extension of northbound I-15 truck lane through the interchange.
The project is estimated to cost $29 million.
Copyright St. George News, SaintGeorgeUtah.com LLC, 2019, all rights reserved.