Structure 15251 · Delaware County, PA

Baltimore Pike over Ridley Creek

Carries Baltimore Pike over Ridley Creek, 1mi.west Media 34a05.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT143 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

143 ft end to end, longest span 70 ft. 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 rigid-frame bridge.

Built194779 years old
Length143.0 ft43.6 m
Daily traffic17,656counted 2024
Last inspectedFebruary 2022every 24 months

Location

StatePennsylvania
CountyDelaware
Location1mi.west Media 34a05
CarriesBaltimore Pike
CrossesRidley Creek
Coordinates39.91691, -75.40404

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length143.0 ft (43.6 m)
Max Span69.9 ft (21.3 m)
Deck Width65.9 ft (20.1 m)
Deck Area876.4 sq m
Main Spans2
Year Built1947

Traffic

Avg Daily Traffic17,656 (2024)
Truck Traffic6%
Lanes On Bridge4

Inspection & Ownership

Last InspectionFebruary 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000000015251

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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