Structure 1027830 · Chautauqua County, NY

RTE 60 over Mill Creek

Carries RTE 60 over Mill Creek, 9.7mi N Jct Rts 17 + 60.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT150 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

150 ft end to end: about 2 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.

Built199531 years old
Length149.9 ft45.7 m
Daily traffic6,344counted 2021
Last inspectedJune 2023every 24 months

Location

StateNew York
CountyChautauqua
Location9.7mi N Jct Rts 17 + 60
CarriesRTE 60
CrossesMill Creek
Coordinates42.25434, -79.26826

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length149.9 ft (45.7 m)
Max Span146.0 ft (44.5 m)
Deck Width42.0 ft (12.8 m)
Deck Area585.0 sq m
Main Spans1
Year Built1995

Traffic

Avg Daily Traffic6,344 (2021)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000001027830

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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