Structure 52582 · Beaver County, PA

SR 51 SB over 04136 641 Rp.a & Local

Carries SR 51 SB over 04136 641 Rp.a & Local, 980 South Roch.monaca Br.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT980 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

980 ft end to end, longest span 88 ft: about 2.7 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 box-beam bridge.

Built1965rebuilt 1997
Length980.0 ft298.7 m
Daily traffic7,771counted 2024
Last inspectedAugust 2023every 24 months

Location

StatePennsylvania
CountyBeaver
Location980 South Roch.monaca Br
CarriesSR 51 SB
Crosses04136 641 Rp.a & Local
Coordinates40.69958, -80.27886

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length980.0 ft (298.7 m)
Max Span87.9 ft (26.8 m)
Deck Width30.2 ft (9.2 m)
Deck Area2748.0 sq m
Main Spans2
Year Built1965 (reconstructed 1997)

Traffic

Avg Daily Traffic7,771 (2024)
Truck Traffic7%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000052582

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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