Structure 1039480 · Jefferson County, NY

RTE 180 over Black River

Carries RTE 180 over Black River, 0.2 Mi N Jct 180 + 12f.

Overall conditionGood

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

How ratings work
Deck9/9 · Excellent
Superstructure9/9 · Excellent
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 FT536 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 9/9Substructure 7/9 · sets the rating

536 ft end to end, longest span 148 ft: about 7 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.

Built1964rebuilt 2016
Length536.1 ft163.4 m
Daily traffic5,475counted 2020
Last inspectedOctober 2024every 24 months

Location

StateNew York
CountyJefferson
Location0.2 Mi N Jct 180 + 12f
CarriesRTE 180
CrossesBlack River
Coordinates44.00507, -76.04485

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length536.1 ft (163.4 m)
Max Span148.0 ft (45.1 m)
Deck Width48.9 ft (14.9 m)
Deck Area2434.7 sq m
Main Spans4
Year Built1964 (reconstructed 2016)

Traffic

Avg Daily Traffic5,475 (2020)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000001039480

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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