Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]
Bridge Dimensions
Length: 235.1 m = 771.4 ft
Main Spans: 2 at 121.3 m = 398.0 ft
Approach Spans: 2
Skew: 28
Width, Roadway: 7.9 m = 25.9 ft (2 Lanes) and Out-To-Out: 11.3 m = 37.1 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Greenfield [27025]: Franklin County [011], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 2
AT GRNFIELD-MONTAGUE T.L.
Condition
Deck: Serious [3]
Superstructure: Poor [4]
Substructure: Poor [4]
Loading
Design: M 18 / H 20 [4]
Operating: 38.5 metric ton = 42.4 tons (Load Factor(LF) [1])
Inventory: 23.1 metric ton = 25.4 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 corrrective action [3]
Road Alignment: Better than present minimum criteria [7]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
Inspections
Date: May 1999 [599] and Frequency: 6
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.8 km = 0.5 mi
Traffic
ADT: 14100 (2019) and Trucks: 8%
Future ADT: 30638 (In 2032
)
