The 300-500 blocks of West Dunklin Street have reopened to traffic, Jefferson City Public Works officials announced Tuesday.
Construction activities are ongoing and may at times reduce traffic to a single lane.
Don Schnieders Excavating will continue construction on West Dunklin Street through the winter.
The $2.6 million project will replace a bridge; add bike lanes, a sidewalk and greenway; and improve the stormwater and sanitary sewer system on Dunklin Street.
In the area near M&M Transmission and McKnight Tire, where stormwater work had been put on hold because of high water levels on Wears Creek, the water levels have gone down to allow for the process of installing stormwater pipe.
"It was supposed to have been completed by the day before Thanksgiving," Jefferson City Engineer David Bange said. "The bridge won't be built this year, so we'll let the people use it through the winter."
Bange said they want to close the 400 block in the spring for that construction, but that might depend again on water levels.
"They're already predicting higher levels on the Missouri River next year, and backwater from the Missouri goes into Wears," he said.
Bange said they still need to put the top level of asphalt on and install traffic signals in the 300-500 blocks of West Dunklin Street.
"The sewer work is done, and the majority of underground work on the project is nearing completion," he added. "We don't have an estimate on when all the work will be done. It is estimated, though, that it would take two months to rebuild the bridge."