Structure 19860 · Jefferson County, PA

T-472 Humpback RD over North Fork Creek

Carries T-472 Humpback RD over North Fork Creek, 0.5 Mile South Of SR 4005.

Overall conditionPoor

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

How ratings work
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT81 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 4/9Substructure 4/9

81 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 deck arch.

Built193591 years old
Length81.0 ft24.7 m
Daily traffic50counted 2023
Last inspectedMay 2023every 24 months

Location

StatePennsylvania
CountyJefferson
Location0.5 Mile South Of SR 4005
CarriesT-472 Humpback RD
CrossesNorth Fork Creek
Coordinates41.25435, -78.97080

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length81.0 ft (24.7 m)
Max Span49.9 ft (15.2 m)
Deck Width16.4 ft (5 m)
Deck Area123.5 sq m
Main Spans1
Year Built1935

Traffic

Avg Daily Traffic50 (2023)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000019860

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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