Structure 107134A · Onondaga County, NY

I81 over I81

Carries I81 over I81, 1.5 Mi S Jct I81 & I90.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT541 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

541 ft end to end, longest span 138 ft: about 1.5 football fields. Lengths and the semi-truck 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.

Built198739 years old
Length541.0 ft164.9 m
Daily traffic9,644counted 2020
Last inspectedSeptember 2024every 24 months

Location

StateNew York
CountyOnondaga
Location1.5 Mi S Jct I81 & I90
CarriesI81
CrossesI81
Coordinates43.07127, -76.16870

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length541.0 ft (164.9 m)
Max Span137.8 ft (42 m)
Deck Width32.2 ft (9.8 m)
Deck Area1616.0 sq m
Main Spans5
Year Built1987

Traffic

Avg Daily Traffic9,644 (2020)
Truck Traffic6%
Lanes On Bridge1
Lanes Under Bridge3

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number00000000107134A

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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