Structure 1017640 · Delaware County, NY

RTE 23 over Underpass Road Center B

Carries RTE 23 over Underpass Road Center B, 7.1 Mi W Jct Rts 23 & 10.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · 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 FT309 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

309 ft end to end, longest span 180 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.

Built199333 years old
Length309.1 ft94.2 m
Daily traffic3,108counted 2016
Last inspectedJune 2023every 24 months

Location

StateNew York
CountyDelaware
Location7.1 Mi W Jct Rts 23 & 10
CarriesRTE 23
CrossesUnderpass Road Center B
Coordinates42.43984, -74.74777

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length309.1 ft (94.2 m)
Max Span179.8 ft (54.8 m)
Deck Width42.0 ft (12.8 m)
Deck Area1205.8 sq m
Main Spans2
Year Built1993

Traffic

Avg Daily Traffic3,108 (2016)
Truck Traffic10%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001017640

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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