Highway 15 Northbound Lane Extension - Transportation Network Improvements
Construction is planned for Highway 15 to extend the existing northbound slip-around lane to Middle Road.
Project location map

Planned improvements
- The existing left-turn slip-around lane will be replaced with a continuous lane that connects to the existing second lane at the Middle Road intersection
- A slip-around lane is an additional lane that allows through-traffic to bypass vehicles waiting to make a left turn
- Roadway widening to accommodate two northbound lanes
- New top lift of asphalt for northbound and southbound lanes
- Full-depth asphalt repair in select locations
- Paved shoulder widening
Construction impacts
There will be reduced access and temporary lane shifts during construction.
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Page published: 18 Mar 2026, 08:53 AM