C-470 & Quincy Roundabouts

Traffic Impacts - June 2 to June 8

Weekday Impacts

• Intermittent daytime lane closures will exist within the Quincy/C-470 northbound ramp intersection roundabout limits
• Once striping is complete, traffic will be shifted south so crews can access the north half of the roundabout area
• The new lane alignment will be in place 24/7 until further notice
• Shoulder closures will be taken during certain work activities
• Working hours are 7 a.m. to 6 p.m. Monday to Thursday, and 7 a.m. to noon on Friday, May 24
• The project limits extend from Mile Point 0 to MP .56
• Construction schedules are weather dependent and subject to change

No Planned Impacts

• There are no planned closures during this period
• The project limits on C-470 extend from MP 6.10 to MP 6.80
• Construction schedules are weather dependent and subject to change

General Impacts, Schedule & Scope of Work

• The project began in mid-May with an anticipated duration of 18 months
• Work includes adding a single lane roundabout with bypass lanes at the Quincy and C-470 northbound ramp intersection, and a T-intersection with traffic signal at the Quincy and C-470 southbound ramp intersection
• Other work includes adding capacity, building walls, installing signs, and making drainage improvements
• Periodic on and off ramp closures to and from C-470 at Quincy Ave will be taken during off-peak daytime as well as overnight hours
• Some closures of half the existing Quincy Ave over C-470 bridge will be taken for roundabout and other construction, with two-way traffic maintained and 12-ft width restriction in place
• A single lane closure on northbound C-470 will exist later in the project for sign work
• Onsite detour pavement will be built to route traffic around the proposed roundabout location
• Other detour routes will be marked for use during later phases of construction
• No work will take place on mainline C-470
• Normal working hours will be from 7 a.m. to 6 p.m. Monday to Friday
• Overnight work can be expected
• The project limits on C-470 extend from MP 6.10 to MP 6.80
• The project limits on Quincy extend from MP 0 to MP .56
• Signs and construction devices will be present to alert the public to the work zone, closures and restrictions
• Construction schedules are weather dependent and subject to change