Structure 4308230 · Herkimer County, NY

RTE 922b over Canal Trail Mohawk Rive

Carries RTE 922b over Canal Trail Mohawk Rive, .2 Mi E Of Exit 30 - I90.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT626 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

626 ft end to end, longest span 180 ft: about 1.7 football fields. 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.

Built196759 years old
Length626.0 ft190.8 m
Daily traffic4,789counted 2020
Last inspectedJune 2023every 24 months

Location

StateNew York
CountyHerkimer
Location.2 Mi E Of Exit 30 - I90
CarriesRTE 922b
CrossesCanal Trail Mohawk Rive
Coordinates43.01807, -74.97946

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length626.0 ft (190.8 m)
Max Span180.1 ft (54.9 m)
Deck Width34.8 ft (10.6 m)
Deck Area2022.5 sq m
Main Spans4
Year Built1967

Traffic

Avg Daily Traffic4,789 (2020)
Truck Traffic4%
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 Critical8 — Stable, low risk
Structure Number000000004308230

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.

Nearby Bridges