Bridge Type
Main Span(s): Concrete continuous [2] Frame [07]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 42.6 m = 139.8 ft
Main Spans: 2 at 18.6 m = 61.0 ft
Approach Spans: 0
Skew: 35
Width, Roadway: 8 m = 26.2 ft (2 Lanes) and Out-To-Out: 11 m = 36.1 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Jackson [38260]: Carroll County [003], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 1
0.5 MI FROM BARTLETT TL
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 75.9 metric ton = 83.5 tons (Load Factor(LF) [1])
Inventory: 45.4 metric ton = 49.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: November 2020 [1120] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 12.2 km = 7.6 mi
Traffic
ADT: 7182 (2019) and Trucks: 7%
Future ADT: 10629 (In 2041
)