The Queens Bridge between South Bound Brook and Bound Brook is expected to be closed at 9 p.m. Sept. 8 for emergency repairs.
The repairs should last about two months, said Stephen Schapiro, a spokesman for the state Department of Transportation.
Schapiro said the work will not entail a replacement of the bridge, just repairs to the bridges superstructure.
The posted detour from the Franklin Township side of the Raritan River will be Canal/Weston Canal Road to Route 287 to Route 28, Schapiro said.
Schapiro said more details would be released after Labor Day weekend.