Structure 9147 · Carbon County, PA

Sr0895 Lr13001 over Pa Tpk (i-476)

Carries Sr0895 Lr13001 over Pa Tpk (i-476), Bowmanstown.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT99 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

99 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.

Built1957rebuilt 1993
Length99.1 ft30.2 m
Daily traffic3,628counted 2024
Last inspectedJune 2023every 24 months

Location

StatePennsylvania
CountyCarbon
LocationBowmanstown
CarriesSr0895 Lr13001
CrossesPa Tpk (i-476)
Coordinates40.79717, -75.67360

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length99.1 ft (30.2 m)
Max Span92.8 ft (28.3 m)
Deck Width50.2 ft (15.3 m)
Deck Area462.1 sq m
Main Spans1
Year Built1957 (reconstructed 1993)

Traffic

Avg Daily Traffic3,628 (2024)
Truck Traffic9%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000009147

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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