Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 29 m = 95.1 ft
Main Spans: 1 at 28.3 m = 92.9 ft
Approach Spans: 0
Skew: 5
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 12.3 m = 40.4 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Tilton [77060]: Belknap County [001], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 3
NORTHFIELD TL.
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 24.5 metric ton = 27.0 tons (Load Factor(LF) [1])
Inventory: 16.3 metric ton = 17.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
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: 0.2 km = 0.1 mi
Traffic
ADT: 9910 (2018) and Trucks: 4%
Future ADT: 14666 (In 2041
)