Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Closed Grating [4] with Wearing Surface: Epoxy Overlay [5]
Bridge Dimensions
Length: 118.6 m = 389.1 ft
Main Spans: 2 at 79.6 m = 261.2 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 8.8 m = 28.9 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 4.45 m = 14.6 ft and Navigational Clearance: 0 = N/A
Location
Monroe [48980]: Grafton County [009], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 1
VERMONT STATE LINE
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: M 13.5 / H 15 [2]
Operating: 39 metric ton = 42.9 tons (Load Factor(LF) [1])
Inventory: 23.3 metric ton = 25.6 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 1999 [699] 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: 0.6 km = 0.4 mi
Traffic
ADT: 1092 (2019) and Trucks: 10%
Future ADT: 1616 (In 2041
)