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: 114.3 m = 375.0 ft
Main Spans: 7 at 26.5 m = 86.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.9 m = 16.1 ft (2 Lanes) and Out-To-Out: 6.2 m = 20.3 ft for a 6.8 m = 22.3 ft approaching roadway.
Vertical Clearance: 2.51 m = 8.2 ft and Navigational Clearance: 0 = N/A
Location
Bath [03940]: Grafton County [009], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 1
0.1 MI NH 10
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Fair [5]
Loading
Design:
Operating: 11.2 metric ton = 12.3 tons (Allowable Stress(AS) [2])
Inventory: 9.3 metric ton = 10.2 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Basically intolerable requiring high priority of corrrective action [3]
Waterway: Superior to present desirable criteria [9] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: October 2020 [1020] 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: 1.4 km = 0.9 mi
Traffic
ADT: 91 (2019) and Trucks: 4%
Future ADT: 134 (In 2041
)