Structure 1030080 · Genesee County, NY

RTE 77 over Trib To Murder Creek 90

Carries RTE 77 over Trib To Murder Creek 90, Jct RT 77 & Nys Thruway.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT255 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

255 ft end to end, longest span 125 ft: about 4 semi-trucks nose to tail. 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.

Built199432 years old
Length254.9 ft77.7 m
Daily traffic6,704counted 2020
Last inspectedMarch 2023every 24 months

Location

StateNew York
CountyGenesee
LocationJct RT 77 & Nys Thruway
CarriesRTE 77
CrossesTrib To Murder Creek 90
Coordinates43.00703, -78.40531

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length254.9 ft (77.7 m)
Max Span125.0 ft (38.1 m)
Deck Width36.7 ft (11.2 m)
Deck Area870.2 sq m
Main Spans2
Year Built1994

Traffic

Avg Daily Traffic6,704 (2020)
Truck Traffic21%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001030080

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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