Structure 2135 · Allegheny County, PA

Sutersville Br over Youghiogheny River

Carries Sutersville Br over Youghiogheny River, Yr01 Youghioghenyriv #1.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT606 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

606 ft end to end, longest span 163 ft: about 1.7 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 multi-beam bridge.

Built198640 years old
Length606.0 ft184.7 m
Daily traffic3,505counted 2005
Last inspectedAugust 2023every 24 months

Location

StatePennsylvania
CountyAllegheny
LocationYr01 Youghioghenyriv #1
CarriesSutersville Br
CrossesYoughiogheny River
Coordinates40.24124, -79.80527

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length606.0 ft (184.7 m)
Max Span163.1 ft (49.7 m)
Deck Width39.7 ft (12.1 m)
Deck Area2234.9 sq m
Main Spans4
Year Built1986

Traffic

Avg Daily Traffic3,505 (2005)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000000002135

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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