Structure 1041650 · Erie County, NY

RTE 391 over Eighteenmile Ck

Carries RTE 391 over Eighteenmile Ck, 0.6 Mi N Jct Rts 391 +219.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT34 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

34 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 rigid-frame bridge.

Built200224 years old
Length34.1 ft10.4 m
Daily traffic6,659counted 2020
Last inspectedAugust 2024every 24 months

Location

StateNew York
CountyErie
Location0.6 Mi N Jct Rts 391 +219
CarriesRTE 391
CrossesEighteenmile Ck
Coordinates42.70091, -78.79254

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length34.1 ft (10.4 m)
Max Span33.1 ft (10.1 m)
Deck Width42.3 ft (12.9 m)
Deck Area134.2 sq m
Main Spans1
Year Built2002

Traffic

Avg Daily Traffic6,659 (2020)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001041650

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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