Structure 3329470 · Niagara County, NY

Quaker Road over Eighteen Mile Crk

Carries Quaker Road over Eighteen Mile Crk, 1.5 Mi W Of Johnson Creek.

Overall conditionFair

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

How ratings work
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT35 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 7/9Substructure 5/9 · sets the rating

35 ft end to end, longest span 17 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.

Built1950rebuilt 1985
Length35.1 ft10.7 m
Daily traffic364counted 2018
Last inspectedOctober 2024every 24 months

Location

StateNew York
CountyNiagara
Location1.5 Mi W Of Johnson Creek
CarriesQuaker Road
CrossesEighteen Mile Crk
Coordinates43.23742, -78.54947

Physical Characteristics

MaterialWood or Timber
DesignSlab
Total Length35.1 ft (10.7 m)
Max Span16.7 ft (5.1 m)
Deck Width29.2 ft (8.9 m)
Deck Area95.2 sq m
Main Spans2
Year Built1950 (reconstructed 1985)

Traffic

Avg Daily Traffic364 (2018)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000003329470

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