Structure 14793 · Delaware County, PA

Media By-pass over Ridley Ck.rd;ridley Ck.

Carries Media By-pass over Ridley Ck.rd;ridley Ck., 1.5mi.s.pa 252 33k04.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT303 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 4/9 · sets the rating

303 ft end to end, longest span 93 ft: about 4 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 box-beam bridge.

Built1959rebuilt 1995
Length303.1 ft92.4 m
Daily traffic34,005counted 2023
Last inspectedDecember 2023every 24 months

Location

StatePennsylvania
CountyDelaware
Location1.5mi.s.pa 252 33k04
CarriesMedia By-pass
CrossesRidley Ck.rd;ridley Ck.
Coordinates39.92554, -75.40815

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length303.1 ft (92.4 m)
Max Span92.8 ft (28.3 m)
Deck Width65.6 ft (20 m)
Deck Area1,848 sq m
Main Spans4
Year Built1959 (reconstructed 1995)

Traffic

Avg Daily Traffic34,005 (2023)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000014793

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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