Bridge replacement work over I-494 in Plymouth begins Tuesday

Welcome to construction season...
Publish date:

Motorists can expect delays in both directions of Interstate 494 in Plymouth as work begins Tuesday to replace the overpass at Rockford Road. 

The current two-lane overpass is being replaced with a new bridge that will feature two lanes in each direction and dedicated left-turn lanes, which don't exist on the current bridge. The project will also include room for pedestrians and bicyclists in each direction. 

The construction project will happen in three phases before the new bridge is completed in late-November. 

Phase 1 - May 28 through early summer

The first wave of work will begin Tuesday and features both north ramps closing at 2 a.m. That includes the ramp from Rockford Road (County Road 9) to northbound I-494 and the ramp from southbound I-494 to Rockford Road. 

Construction workers will be widening the ramps during this stage. 

The overpass will remain open, but the primary detour for the closed ramps will push traffic to Hwy. 55. 

Phase 2 - Summer through early fall

The second step in the project is to close the bridge to traffic for approximately 100 days. It's during those 100 days that the bridge will be torn down (in June) and the new bridge will go up, eventually opening to traffic. 

It's likely that both directions of I-494 will close while the existing bridge is being removed. 

Phase 3 - October through late-November

Similar to the first phase, this stage will involve closing the southbound ramp from Rockford Road to I-494 and the ramp from northbound I-494 to Rockford Road. The new bridge will be open to traffic but lane closures could cause delays while construction crews complete the interchange work. 


Weather permitting, everything will be done by the end of November. 

The current bridge was constructed in 1965 and over the last five years it has averaged 33 crashes on it per year, in addition to significant congestion issues. The new, wider bridge will help with traffic flow frustrations immediately. 

Next Up

Antoine Winfield Jr.

Antoine Winfield Jr. says playoff win was "for my pops back in '09"

The son of the Vikings legend did not forget about "Bountygate."

Jared Vanderbilt

Shorthanded Timberwolves fall to Atlanta in Monday matinee

D'Angelo Russell scored 31 points, but didn't have much help.

police lights

Man, 72, critical after possible robbery outside Minneapolis business

The 72-year-old sustained gunshot wounds in the incident.


It could take months to vaccinate MN teachers, people 65 and older

"This is going to be harder than going to Ticketmaster and trying to get Bruce Springsteen tickets," Walz said.

Herb Brooks statue

Trump's planned statue garden would include 2 Minnesotans, others with MN links

But there were some notable names absent from the wide-ranging and eclectic list.

k9 zeke

Petition seeks to allow retired Corcoran officer to keep K9 partner

Corcoran's public safety director says if K9 Zeke is donated to the officer it will be a loss for the department.


Here is Minnesota's COVID-19 update for Monday, Jan. 18

The latest update from the Minnesota Department of Health.

Tom Kelly Jr.

Tom Kelly Jr., son of Twins World Series manager, dies at 42

He was a member of the 2001 UST national championship team.

Hennepin County CSI

Police: Man shot in the head by woman in Richfield

It happened in the early hours of Monday.


Reconstruction planned for busy I-94, I-694, I-494 interchange

Enjoy the construction-free interchange while you can.

Plan around weekend roadwork on I-94, I-494, I-35W

Soon enough, the only thing that'll slow you down will be snow and ice.

Detour road construction

Stretches of I-494, I-694 to be closed this weekend in Twin Cities

Prepare for detours in the south and east metro this weekend.

Closures on I-694 and I-494 expected to cause delays this weekend

The closures will affect the north and the south metro.

Weekend roadwork could make for big delays in the Twin Cities

Be mindful of where work is being done and consider alternate routes.