Structure 2256080 · Monroe County, NY

RTE 31 over Subway Tunnel

Carries RTE 31 over Subway Tunnel, In Rochester.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT205 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 3/9 · sets the rating

205 ft end to end, longest span 80 ft: about 3 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 slab bridge.

Built197452 years old
Length205.1 ft62.5 m
Daily traffic6,968counted 2019
Last inspectedDecember 2024every 12 months

Location

StateNew York
CountyMonroe
LocationIn Rochester
CarriesRTE 31
CrossesSubway Tunnel
Coordinates43.15463, -77.60902

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length205.1 ft (62.5 m)
Max Span79.7 ft (24.3 m)
Deck Width65.0 ft (19.8 m)
Deck Area1237.5 sq m
Main Spans4
Year Built1974

Traffic

Avg Daily Traffic6,968 (2019)
Truck Traffic1%
Lanes On Bridge4

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 12 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000002256080

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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