Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Deck: Open Grating [3] with Wearing Surface: Other [9]
Bridge Dimensions
Length: 77.3 m = 253.6 ft
Main Spans: 1 at 13.1 m = 43.0 ft
Approach Spans: 5
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 9.4 m = 30.8 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 4 m = 13.1 ft
Location
New Castle [50980]: Rockingham County [015], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 6
1.1 MI JCT RT 1-A
Condition
Deck: Satisfactory [6]
Superstructure: Serious [3]
Substructure: Fair [5]
Loading
Design: M 18 / H 20 [4]
Operating: 25.5 metric ton = 28.1 tons (Load Factor(LF) [1])
Inventory: 15.3 metric ton = 16.8 tons (Load Factor(LF) [1])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
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: November 2020 [1120] and Frequency: 8
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 3167 (2019) and Trucks: 5%
Future ADT: 4687 (In 2041
)
