Structure 501 · Allegheny County, PA

RT 0008 NB SB over Pine Creek

Carries RT 0008 NB SB over Pine Creek, 600south Of Duncan Ave..

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT91 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 6/9 · sets the rating

91 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 box-beam bridge.

Built1959rebuilt 2007
Length90.9 ft27.7 m
Daily traffic20,741counted 2024
Last inspectedOctober 2023every 24 months

Location

StatePennsylvania
CountyAllegheny
Location600south Of Duncan Ave.
CarriesRT 0008 NB SB
CrossesPine Creek
Coordinates40.55734, -79.95879

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length90.9 ft (27.7 m)
Max Span84.0 ft (25.6 m)
Deck Width61.0 ft (18.6 m)
Deck Area515.2 sq m
Main Spans1
Year Built1959 (reconstructed 2007)

Traffic

Avg Daily Traffic20,741 (2024)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000000000501

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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