Structure 19331 · Indiana County, PA

Sr3013 over Muddy Run

Carries Sr3013 over Muddy Run, Muddy Run No.3.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT28 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 5/9

28 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.

Built195670 years old
Length27.9 ft8.5 m
Daily traffic716counted 2024
Last inspectedOctober 2024every 24 months

Location

StatePennsylvania
CountyIndiana
LocationMuddy Run No.3
CarriesSr3013
CrossesMuddy Run
Coordinates40.51276, -79.23798

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length27.9 ft (8.5 m)
Max Span26.9 ft (8.2 m)
Deck Width25.9 ft (7.9 m)
Deck Area67.2 sq m
Main Spans1
Year Built1956

Traffic

Avg Daily Traffic716 (2024)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000000019331

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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