Structure 1053870 · Onondaga County, NY

RTE I81 over N Townsend Street

Carries RTE I81 over N Townsend Street, Jct Of I-81 NB + I-690 EB.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT74 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

74 ft end to end. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built196858 years old
Length74.1 ft22.6 m
Daily traffic74,401counted 2020
Last inspectedApril 2023every 24 months

Location

StateNew York
CountyOnondaga
LocationJct Of I-81 NB + I-690 EB
CarriesRTE I81
CrossesN Townsend Street
Coordinates43.05134, -76.14555

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length74.1 ft (22.6 m)
Max Span69.9 ft (21.3 m)
Deck Width56.1 ft (17.1 m)
Deck Area386.5 sq m
Main Spans1
Year Built1968

Traffic

Avg Daily Traffic74,401 (2020)
Truck Traffic6%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001053870

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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