State officials on Friday announced that six aging bridges and one culvert will be replaced in Jefferson County as part of a $16.6 million project.

Officials say the aim of the project is to enhance safety and mobility along key stretches of the Great Lakes Seaway Trail.

“New York is upgrading our infrastructure at a historic pace, ensuring that our roads and bridges can keep our state moving for generations to come,” Gov. Kathy Hochul said in a statement. “The Great Lakes Seaway Trail knits together New York’s iconic lakefront communities from the shores of Lake Erie to the Thousands Islands of the Saint Lawrence River, and upgrading these bridges will better connect New Yorkers to all of the recreational and outdoor activities that these communities offer.”

The state says the bridges and culvert targeted for replacement were all built before 1933 and the new structures will improve water flow and reduce long-term maintenance costs.

Officials say work is currently underway at the bridge carrying State Route 3 over Stony Creek in the Town of Henderson. A 69-foot, single-span, steel multi-girder bridge will be constructed at the site.

Other projects include:

State Route 12E over Perch River, Town of Brownville – A 57-foot, single-span bridge will be constructed. A signed detour will be in place utilizing State Routes 12E, 12F and 180.
State Route 3 over Mill Creek, Town of Hounsfield – A 52-foot, single-span bridge will be constructed. A signed detour will be in place utilizing Jefferson County Routes 62 and 66.
State Route 12E over Shaver Creek, Town of Lyme – A 57-foot, single-span bridge will be constructed. A signed detour will be in place utilizing State Routes 12E, 12 and 180.
State Route 3 over Little Stony Creek, Town of Ellisburg – A 53-foot, single-span bridge will be constructed. A signed detour will be in place utilizing State Routes 178, 289 and 193.
State Route 12E over Tributary Chaumont Bay, Town of Lyme – The existing culvert will be replaced with a 22-foot bridge featuring a three-sided, precast concrete frame. A signed detour will be in place utilizing State Routes 12E, 12 and 180.
State Route 12E over Kents Creek, Town of Cape Vincent – A 37-foot, single-span bridge will be constructed. A signed detour will be in place utilizing State Routes 12E, 12 and 180.

Work is expected to be completed by July 2028.