LebAlert
West Lebanon, NH - Route 12A Dry Bridge Closure - 9/14/2026
West Lebanon, NH – Route 12A Dry Bridge Closure
The City of Lebanon Department of Public Works is reminding the public that the South Main Street/Route 12A Dry Bridge will close to all vehicular traffic beginning at 7:00 AM on Monday, September 14, 2026, as part of the Dry Bridge Replacement Project.
This closure initiates the approved 365-day period during which the bridge will remain fully closed to all traffic. A designated detour will be in place for the duration of the closure, and motorists are strongly encouraged to follow the posted detour route rather than using local roads as alternatives.
From Points North: From Main Street in West Lebanon, follow Route 4 East along Seminary Hill, Miracle Mile, and Mechanic Street. Enter I-89 North and take Exit 20 to reach South Main Street/Route 12A.
From Points South: From South Main Street/Route 12A, enter I-89 South at Exit 20 and continue to Exit 19. Turn left onto Route 4 West/Mechanic Street and follow Route 4 West along Miracle Mile and Seminary Hill back to Main Street in West Lebanon.
A temporary pedestrian footbridge will be available on or before the start of the vehicle closure and will remain open throughout construction. The footbridge will be ADA accessible. For safety, bicyclists are encouraged to dismount and walk bicycles across the bridge.
The closure will affect residents, businesses, schools, public transportation, and other travelers in the area. Please allow additional travel time, follow posted detour signs, and expect delays, particularly during the first several days of the closure.
The City appreciates the public’s patience and cooperation during this important infrastructure project.
For more information about this project, please visit LebanonNH.gov/DryBridge.
The City of Lebanon Department of Public Works is reminding the public that the South Main Street/Route 12A Dry Bridge will close to all vehicular traffic beginning at 7:00 AM on Monday, September 14, 2026, as part of the Dry Bridge Replacement Project.
This closure initiates the approved 365-day period during which the bridge will remain fully closed to all traffic. A designated detour will be in place for the duration of the closure, and motorists are strongly encouraged to follow the posted detour route rather than using local roads as alternatives.
From Points North: From Main Street in West Lebanon, follow Route 4 East along Seminary Hill, Miracle Mile, and Mechanic Street. Enter I-89 North and take Exit 20 to reach South Main Street/Route 12A.
From Points South: From South Main Street/Route 12A, enter I-89 South at Exit 20 and continue to Exit 19. Turn left onto Route 4 West/Mechanic Street and follow Route 4 West along Miracle Mile and Seminary Hill back to Main Street in West Lebanon.
A temporary pedestrian footbridge will be available on or before the start of the vehicle closure and will remain open throughout construction. The footbridge will be ADA accessible. For safety, bicyclists are encouraged to dismount and walk bicycles across the bridge.
The closure will affect residents, businesses, schools, public transportation, and other travelers in the area. Please allow additional travel time, follow posted detour signs, and expect delays, particularly during the first several days of the closure.
The City appreciates the public’s patience and cooperation during this important infrastructure project.
For more information about this project, please visit LebanonNH.gov/DryBridge.