Bridge Type
Main Span(s): Wood or timber [7] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 48.5 m = 159.1 ft
Main Spans: 2 at 23.5 m = 77.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 5 m = 16.4 ft (2 Lanes) and Out-To-Out: 6.4 m = 21.0 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 2.26 m = 7.4 ft and Navigational Clearance: 0 = N/A
Location
Swanzey [75700]: Cheshire County [005], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 4
1.71MI E JCT NH 10
Condition
Deck: Satisfactory [6]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design:
Operating: 9.1 metric ton = 10.0 tons (Load Factor(LF) [1])
Inventory: 6.4 metric ton = 7.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Equal to present desirable criteria [8] and Countermeasures have been installed to mitigate an existing problem with scour. [7]
Inspections
Date: August 2020 [0820] 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: 1 km = 0.6 mi
Traffic
ADT: 3722 (2019) and Trucks: 4%
Future ADT: 5508 (In 2041
)
