Structure 10692 · Chester County, PA

Allerton Road over E Br Of Brandywine Creek

Carries Allerton Road over E Br Of Brandywine Creek, E Bradford Twp 3582-j10.

Overall conditionPoor

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT105 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 4/9 · sets the ratingSubstructure 5/9

105 ft end to end. Lengths and the car 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.

Built1905rebuilt 1990
Length105.0 ft32 m
Daily traffic1,361counted 2019
Last inspectedApril 2023every 24 months

Location

StatePennsylvania
CountyChester
LocationE Bradford Twp 3582-j10
CarriesAllerton Road
CrossesE Br Of Brandywine Creek
Coordinates39.93889, -75.63641

Physical Characteristics

MaterialAluminum/Wrought Iron/Cast Iron
DesignTruss - Thru
Total Length105.0 ft (32 m)
Max Span95.1 ft (29 m)
Deck Width18.0 ft (5.5 m)
Deck Area176 sq m
Main Spans1
Year Built1905 (reconstructed 1990)

Traffic

Avg Daily Traffic1,361 (2019)
Truck Traffic10%
Lanes On Bridge1

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000000010692

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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