Structure 15194 · Delaware County, PA

Marple Road(reloc) over I-476;CREEK Rd;darby

Carries Marple Road(reloc) over I-476;CREEK Rd;darby, Nr.haverford Hosp. 25k05.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT516 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

516 ft end to end, longest span 163 ft: 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 multi-beam bridge.

Built198838 years old
Length516.1 ft157.3 m
Daily traffic4,828counted 2024
Last inspectedDecember 2021every 48 months

Location

StatePennsylvania
CountyDelaware
LocationNr.haverford Hosp. 25k05
CarriesMarple Road(reloc)
CrossesI-476;CREEK Rd;darby
Coordinates39.98996, -75.34434

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length516.1 ft (157.3 m)
Max Span163.1 ft (49.7 m)
Deck Width38.7 ft (11.8 m)
Deck Area1856.1 sq m
Main Spans4
Year Built1988

Traffic

Avg Daily Traffic4,828 (2024)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge8

Inspection & Ownership

Last InspectionDecember 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000015194

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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