MACKINAC BRIDGE PROJECTS - 2007 THROUGH 2011

DESCRIPTION

TIME FRAME

TRAFFIC DELAYS

Bridge repainting project

Complete paint removal and reapplication of primer and surface paint.

Ongoing all season for years 2006, 2008-2011.

Area lane closures Monday through Friday. Some overnight closures. Weekend lane closures as traffic levels permit.

Bridge deck resurfacing

Mill off old bituminous and replace.

Fall of 2006 and spring of 2007.

Traffic switch with two way traffic. Possible delays northbound on Fridays and southbound on Sundays.

Catwalk improvements

Install maintenance catwalks along perimeter of truss approaches.

Ongoing all season during summer of 2009-2010.

Daytime and some overnight lane closures Monday through Friday. Weekend lane closures as traffic levels permit.

Cross beam repair

Repair deteriorated cross beams under the bridge roadway.

Ongoing all season during summer of 2006.

Daytime lane closures Monday through Friday.

Main cable inspection

Thoroughly inspect sections of the main cables near the top of the towers.

During the month of July in 2007.

Area lane closures Monday through Friday. Temporary traffic stoppages of 20 minutes or less.

Deck grating replacement

Remove and replace sections of open grating on the suspended spans.

2007-2011

Day and night time lane closures Monday through Friday.

Causeway resurfacing

Mill and replace the bituminous surface on the causeway.

Spring of 2010

Traffic switch with two way traffic. No weekend lane closures.

Tower hanger replacement

Remove and replace the tower links.

2010-2011

Traffic switch with two way traffic.

Viaduct bearing replacement

Remove and replace the bearings on the 13 south viaduct spans.

Ongoing all season during summer of 2007.

Day and night lane closures all week.