Andover, New Hampshire

Keniston Covered Bridge 29-07-02 (Merrimack County, New Hampshire)
Built 1882
Covered bridge over Blackwater River on Bridge Road in Andover
Open to traffic

Northern Rail Trail - Blackwater River Bridge #1 (Merrimack County, New Hampshire)
Pony/through plate girder bridge over Blackwater River on Northern Rail Trail
Open to pedestrians only

Northern Rail Trail - Blackwater River Bridge #2 (Merrimack County, New Hampshire)
Warren through truss with alternating verticals bridge over Blackwater River on Northern Rail Trail - Merrimack County
Open to pedestrians only

Northern Rail Trail - Blackwater River Bridge #3 (Merrimack County, New Hampshire)
Pony/through plate girder bridge over Blackwater River on Pedestrian Trail
Open to traffic