Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
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: 85.6 m = 280.9 ft
Main Spans: 2 at 42.6 m = 139.8 ft
Approach Spans: 0
Skew: 35
Width, Roadway: 6.7 m = 22.0 ft (2 Lanes) and Out-To-Out: 7.7 m = 25.3 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 4.49 m = 14.7 ft and Navigational Clearance: 0 = N/A
Location
Unadilla [76001]: Otsego County [077], New York [36]
Owned by State Highway Agency [01], DOT District: 94
JCT RTE 357+SUSQUEHANNA R
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Poor [4]
Loading
Design: MS 18 / HS 20 [5]
Operating: 56.2 metric ton = 61.8 tons (Load Factor(LF) [1])
Inventory: 33.6 metric ton = 37.0 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: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: October 2020 [1020] and Frequency: 24
Future Work
Work Needed: Widening of existing bridge with deck rehabilitation or replacement. [34]
Bridge Detour: 0.9 km = 0.6 mi
Traffic
ADT: 2048 (2016) and Trucks: 5%
Future ADT: 2533 (In 2039
)
