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: Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]
Bridge Dimensions
Length: 235.3 m = 772.0 ft
Main Spans: 4 at 74.7 m = 245.1 ft
Approach Spans: 0
Skew: 5
Width, Roadway: 17.1 m = 56.1 ft (4 Lanes) and Out-To-Out: 21.3 m = 69.9 ft for a 17.1 m = 56.1 ft approaching roadway.
Vertical Clearance: 32.68 m = 107.2 ft and Navigational Clearance: 7 m = 23.0 ft
Location
Niskayuna [51264]: Schenectady County [093], New York [36]
Owned by State Highway Agency [01], DOT District: 16
JCT RTE 146 & ERIE CANAL
Condition
Deck: Excellent [9]
Superstructure: Excellent [9]
Substructure: Excellent [9]
Loading
Design: HL93 [A]
Operating: 58.1 metric ton = 63.9 tons (Load Factor(LF) [1])
Inventory: 34.5 metric ton = 38.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Superior to present desirable criteria [9]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: October 1999 [1099] and Frequency: 24
Future Work
Work Needed: Widening of existing bridge with deck rehabilitation or replacement. [34]
Bridge Detour: 1.2 km = 0.7 mi
Traffic
ADT: 22890 (2014) and Trucks: 3%
Future ADT: 22997 (In 2039
)
