Structure 3329350 · Niagara County, NY

Mann Road over Mud Creek

Carries Mann Road over Mud Creek, .3 Mi E Of Wolcottsville.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT44 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 6/9Substructure 6/9

44 ft end to end, longest span 21 ft. Lengths and the car 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.

Built1952rebuilt 1985
Length44.0 ft13.4 m
Daily traffic92counted 2021
Last inspectedOctober 2024every 12 months

Location

StateNew York
CountyNiagara
Location.3 Mi E Of Wolcottsville
CarriesMann Road
CrossesMud Creek
Coordinates43.12186, -78.51401

Physical Characteristics

MaterialWood or Timber
DesignSlab
Total Length44.0 ft (13.4 m)
Max Span21.0 ft (6.4 m)
Deck Width29.5 ft (9 m)
Deck Area120.6 sq m
Main Spans2
Year Built1952 (reconstructed 1985)

Traffic

Avg Daily Traffic92 (2021)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000003329350

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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