Structure 36017 · Westmoreland County, PA

SR 0056 over Kiski Ns R/r SR 2054

Carries SR 0056 over Kiski Ns R/r SR 2054, Vandergrift Bridge.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT497 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

497 ft end to end: about 7 semi-trucks nose to tail. 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.

Built1933rebuilt 1988
Length497.0 ft151.5 m
Daily traffic8,762counted 2023
Last inspectedApril 2023every 24 months

Location

StatePennsylvania
CountyWestmoreland
LocationVandergrift Bridge
CarriesSR 0056
CrossesKiski Ns R/r SR 2054
Coordinates40.60612, -79.56082

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length497.0 ft (151.5 m)
Max Span311.0 ft (94.8 m)
Deck Width35.1 ft (10.7 m)
Deck Area1621.0 sq m
Main Spans1
Year Built1933 (reconstructed 1988)

Traffic

Avg Daily Traffic8,762 (2023)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000036017

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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