Structure 25602 · McKean County, PA

T-384 Brooklyn ST over Knapp Creek

Carries T-384 Brooklyn ST over Knapp Creek, Near Haines DR Intersect.

Overall conditionPoor

Set by its lowest-rated component: Superstructure and Substructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 4/9 · sets the rating

40 ft end to end. 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 multi-beam bridge.

Built1890rebuilt 1996
Length40.0 ft12.2 m
Daily traffic40counted 2018
Last inspectedAugust 2024every 24 months

Location

StatePennsylvania
CountyMcKean
LocationNear Haines DR Intersect
CarriesT-384 Brooklyn ST
CrossesKnapp Creek
Coordinates41.95204, -78.48127

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length40.0 ft (12.2 m)
Max Span39.0 ft (11.9 m)
Deck Width15.1 ft (4.6 m)
Deck Area56.1 sq m
Main Spans1
Year Built1890 (reconstructed 1996)

Traffic

Avg Daily Traffic40 (2018)
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000025602

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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