Structure 1264S336 · New Castle County, DE

SR 7 / SR 4 over Amtrak

Carries SR 7 / SR 4 over Amtrak, Stanton.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT326 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

326 ft end to end, longest span 138 ft: about 5 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.

Built198343 years old
Length326.1 ft99.4 m
Daily traffic26,432counted 2021
Last inspectedJune 2022every 48 months

Location

StateDelaware
CountyNew Castle
LocationStanton
CarriesSR 7 / SR 4
CrossesAmtrak
Coordinates39.70270, -75.65324

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length326.1 ft (99.4 m)
Max Span138.1 ft (42.1 m)
Deck Width57.1 ft (17.4 m)
Deck Area1729.6 sq m
Main Spans3
Year Built1983

Traffic

Avg Daily Traffic26,432 (2021)
Truck Traffic9%
Lanes On Bridge3

Inspection & Ownership

Last InspectionJune 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1264S336

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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