Bridge Type
Main Span(s): Steel [3] Arch - Thru [12]
Approach Span(s): Other [00]
Deck: Closed Grating [4] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 132.2 m = 433.7 ft
Main Spans: 1 at 129.5 m = 424.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 7.8 m = 25.6 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 4.41 m = 14.5 ft and Navigational Clearance: 0 = N/A
Location
Orford [58500]: Grafton County [009], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 2
VERMONT STATE LINE
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: M 13.5 / H 15 [2]
Operating: 39.6 metric ton = 43.6 tons (Load Factor(LF) [1])
Inventory: 23.5 metric ton = 25.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
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 foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 2020 [0620] 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: 2.6 km = 1.6 mi
Traffic
ADT: 3855 (2019) and Trucks: 7%
Future ADT: 5705 (In 2041
)