Structure 1759 059 · New Castle County, DE

I 95 RD 59 over Brandywine Ck

Carries I 95 RD 59 over Brandywine Ck, Wilmington.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,882 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

1,882 ft end to end, longest span 245 ft: about 5.2 football fields. 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.

Built1964rebuilt 1984
Length1881.9 ft573.6 m
Daily traffic81,849counted 2023
Last inspectedMay 2024every 24 months

Location

StateDelaware
CountyNew Castle
LocationWilmington
CarriesI 95 RD 59
CrossesBrandywine Ck
Coordinates39.75643, -75.55251

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1881.9 ft (573.6 m)
Max Span245.1 ft (74.7 m)
Deck Width108.9 ft (33.2 m)
Deck Area19043.5 sq m
Main Spans13
Year Built1964 (reconstructed 1984)

Traffic

Avg Daily Traffic81,849 (2023)
Truck Traffic14%
Lanes On Bridge6
Lanes Under Bridge8

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number1759 059

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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