Structure 10986 · Clarion County, PA

Sr0368 over Allegheny Riv/aband Rr

Carries Sr0368 over Allegheny Riv/aband Rr, Parker.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,155 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

1,155 ft end to end, longest span 390 ft: about 3.2 football fields. Lengths and the semi-truck 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 through truss.

Built1934rebuilt 2012
Length1154.9 ft352 m
Daily traffic1,887counted 2024
Last inspectedJune 2023every 24 months

Location

StatePennsylvania
CountyClarion
LocationParker
CarriesSr0368
CrossesAllegheny Riv/aband Rr
Coordinates41.10193, -79.67923

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length1154.9 ft (352 m)
Max Span390.1 ft (118.9 m)
Deck Width25.6 ft (7.8 m)
Deck Area2745.6 sq m
Main Spans4
Year Built1934 (reconstructed 2012)

Traffic

Avg Daily Traffic1,887 (2024)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000010986

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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