Structure 1015370 · Chautauqua County, NY

RTE 20 over Lumber Street/ Parking L

Carries RTE 20 over Lumber Street/ Parking L, 0.2 Mi SW Jct Rts 20 & 17.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,034 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

1,034 ft end to end, longest span 196 ft: about 2.9 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.

Built198838 years old
Length1034.1 ft315.2 m
Daily traffic2,485counted 2021
Last inspectedAugust 2023every 24 months

Location

StateNew York
CountyChautauqua
Location0.2 Mi SW Jct Rts 20 & 17
CarriesRTE 20
CrossesLumber Street/ Parking L
Coordinates42.32057, -79.58009

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1034.1 ft (315.2 m)
Max Span195.9 ft (59.7 m)
Deck Width47.6 ft (14.5 m)
Deck Area4570.4 sq m
Main Spans7
Year Built1988

Traffic

Avg Daily Traffic2,485 (2021)
Truck Traffic10%
Lanes On Bridge2
Lanes Under Bridge7

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001015370

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