Structure 15901 · Erie County, PA

SR 20 Ridge RD over Over Elk Creek

Carries SR 20 Ridge RD over Over Elk Creek, Girard Township.

Overall conditionGood

Set by its lowest-rated component: Substructure at 8 of 9.

How ratings work
Deck9/9 · Excellent
Superstructure9/9 · Excellent
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT632 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 9/9Substructure 8/9 · sets the rating

632 ft end to end, longest span 87 ft: about 1.8 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.

Built1952rebuilt 2019
Length631.9 ft192.6 m
Daily traffic7,549counted 2023
Last inspectedJune 2023every 48 months

Location

StatePennsylvania
CountyErie
LocationGirard Township
CarriesSR 20 Ridge RD
CrossesOver Elk Creek
Coordinates41.99715, -80.32473

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length631.9 ft (192.6 m)
Max Span86.9 ft (26.5 m)
Deck Width67.9 ft (20.7 m)
Deck Area3986.8 sq m
Main Spans8
Year Built1952 (reconstructed 2019)

Traffic

Avg Daily Traffic7,549 (2023)
Truck Traffic5%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000015901

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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