UPDATED Tuesday, February 19, 2013 --- 4:38 p.m.

From our news partner, WLUK in Green Bay:

OSHKOSH - The Highway 41 bridge over Lake Butte des Morts in Oshkosh has reopened to traffic headed north after a pileup shut it down for several hours.

The Winnebago County Sheriff's Office says 24 vehicles were piled up on the bridge. A FOX 11 photojournalist caught up in the pileup says some semis were involved in the chain-reaction crash.

The State Patrol said the crash happened around 1:15 p.m. The highway reopened just before 4 p.m.

Traffic was being re-routed through the city of Oshkosh. The State Patrol says traffic was also backed up on Hwy. 41 southbound.

Slippery roads have been reported across Northeast Wisconsin after an evening of rain, which turned into snow late Monday night and continued Tuesday morning.

FOX 11's Alex Ronallo will have the latest on the road conditions tonight on FOX 11 News at Five and Nine.

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UPDATED Tuesday, February 19, 2013 --- 4:27 p.m.

The Winnebago Co. Sheriff's Dept says Butte Des Morts Bridge is now open.

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Posted Tuesday, February 19, 2013 --- 3:19 p.m.

From our news partner, WLUK in Green Bay:

OSHKOSH - The Highway 41 bridge over Lake Butte des Morts in Oshkosh is closed to traffic headed north because of a pileup of vehicles.

Oshkosh police say about 20 vehicles are piled up on the bridge. A FOX 11 photojournalist caught up in the pileup says some semis were involved in the chain-reaction crash.

Traffic is being re-routed through the city of Oshkosh on Highway 44. The detour takes drivers to W. South Park Ave., then to Oregon St, then to Jackson St. and back onto Highway 41. Police remind drivers to be careful since there is increased traffic on these roads.

Slippery roads have been reported across Northeast Wisconsin after an evening of rain, which turned into snow late Monday night and continued Tuesday morning.

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Press Release from the DOT:

Location: US 41 NORTHBOUND CLOSED IN OSHKOSH, WINNEBAGO COUNTY

Road closed on Butte des Morts causeway

The Wisconsin Department of Transportation (WisDOT) northeast region office in Green Bay is announcing all lanes of US 41 northbound on the Butte des Morts causeway in Oshkosh,
Winnebago County are closed due to a multi-vehicle crash.

All northbound traffic is being detoured onto WIS 44, WIS 76 back to US 41. It is unknown at this time when the highway is expected to reopen.