Structure 1038220 · Albany County, NY

RTE 145 over Unknown Creek

Carries RTE 145 over Unknown Creek, 3.0 Mi N Jct Rts 81 & 145.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
21 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

21 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 slab bridge.

Built193195 years old
Length21.0 ft6.4 m
Daily traffic1,445counted 2019
Last inspectedMarch 2024every 24 months

Location

StateNew York
CountyAlbany
Location3.0 Mi N Jct Rts 81 & 145
CarriesRTE 145
CrossesUnknown Creek
Coordinates42.45493, -74.22511

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length21.0 ft (6.4 m)
Max Span19.7 ft (6 m)
Deck Width28.9 ft (8.8 m)
Deck Area56.3 sq m
Main Spans1
Year Built1931

Traffic

Avg Daily Traffic1,445 (2019)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000001038220

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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