Structure 2200470 · Albany County, NY

RTE 470 over East Branch Mohawk River

Carries RTE 470 over East Branch Mohawk River, 0.4 Mi E Jct SH 32 & 470.

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 overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT301 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

301 ft end to end, longest span 130 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.

Built198937 years old
Length300.9 ft91.7 m
Daily traffic13,264counted 2018
Last inspectedSeptember 2024every 24 months

Location

StateNew York
CountyAlbany
Location0.4 Mi E Jct SH 32 & 470
CarriesRTE 470
CrossesEast Branch Mohawk River
Coordinates42.77347, -73.69127

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length300.9 ft (91.7 m)
Max Span129.9 ft (39.6 m)
Deck Width40.0 ft (12.2 m)
Deck Area1118.7 sq m
Main Spans3
Year Built1989

Traffic

Avg Daily Traffic13,264 (2018)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000002200470

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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