Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Closed Grating [4] with Wearing Surface: Epoxy Overlay [5]
Bridge Dimensions
Length: 29.6 m = 97.1 ft
Main Spans: 1 at 29 m = 95.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.1 m = 13.5 ft (1 Lanes) and Out-To-Out: 4.8 m = 15.7 ft for a 5.5 m = 18.0 ft approaching roadway.
Vertical Clearance: 5.33 m = 17.5 ft and Navigational Clearance: 0 = N/A
Location
Northampton [46330]: Hampshire County [015], Massachusetts [25]
Owned by City or Municipal Highway Agency [04], DOT District: 2
AT MILL RIVER
Condition
Deck: Satisfactory [6]
Superstructure: Serious [3]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 35.9 metric ton = 39.5 tons (Load Factor(LF) [1])
Inventory: 21.5 metric ton = 23.7 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: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: October 2020 [1020] 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: 0.4 km = 0.2 mi
Traffic
ADT: 5800 (2016) and Trucks: 3%
Future ADT: 9476 (In 2031
)
