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Nearby Bridges in NBI 2021: 1


US 3 over UPPER AMMONOOSUC RIVER (Route: 3)
Num:19801060011200x
Open: no restriction [A]
Built: 1995, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] 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: 71.6 m = 234.9 ft
Main Spans: 2 at 35.1 m = 115.2 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 15.1 m = 49.5 ft (3 Lanes) and Out-To-Out: 17.5 m = 57.4 ft for a 15.2 m = 49.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Northumberland [56100]: Coos County [007], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 1
4.4 MI FROM LANCASTER TL
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 59.4 metric ton = 65.3 tons ()
Inventory: 40.8 metric ton = 44.9 tons ()
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: July 1999 [799] 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: 4 km = 2.5 mi
Traffic
ADT: 6095 (2019) and Trucks: 7%
Future ADT: 9020 (In 2041 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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