Structure 29395 · Northumberland County, PA

8th St. Shamokin over Shamokin Creek

Carries 8th St. Shamokin over Shamokin Creek, Shamokin City.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT74 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 6/9

74 ft end to end, longest span 34 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 tee-beam bridge.

Built1937rebuilt 1977
Length74.1 ft22.6 m
Daily traffic2,400counted 2019
Last inspectedJanuary 2023every 24 months

Location

StatePennsylvania
CountyNorthumberland
LocationShamokin City
Carries8th St. Shamokin
CrossesShamokin Creek
Coordinates40.79044, -76.55640

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length74.1 ft (22.6 m)
Max Span34.1 ft (10.4 m)
Deck Width43.0 ft (13.1 m)
Deck Area296.1 sq m
Main Spans2
Year Built1937 (reconstructed 1977)

Traffic

Avg Daily Traffic2,400 (2019)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000000029395

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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