Structure 18859 · Huntingdon County, PA

SR 3029 over Smith Run

Carries SR 3029 over Smith Run, 3.0 Mile South Of Tr 655.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT68 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

68 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.

Built1938rebuilt 2010
Length67.9 ft20.7 m
Daily traffic267counted 2024
Last inspectedJune 2023every 24 months

Location

StatePennsylvania
CountyHuntingdon
Location3.0 Mile South Of Tr 655
CarriesSR 3029
CrossesSmith Run
Coordinates40.38989, -77.97064

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length67.9 ft (20.7 m)
Max Span64.0 ft (19.5 m)
Deck Width25.9 ft (7.9 m)
Deck Area163.5 sq m
Main Spans1
Year Built1938 (reconstructed 2010)

Traffic

Avg Daily Traffic267 (2024)
Truck Traffic12%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number000000000018859

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