Structure 1807 060 · New Castle County, DE

I 495 NB over US 13

Carries I 495 NB over US 13, South Of Wilmington.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT224 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9Substructure 5/9 · sets the rating

224 ft end to end, longest span 109 ft: about 3 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.

Built197551 years old
Length223.8 ft68.2 m
Daily traffic44,899counted 2023
Last inspectedSeptember 2024every 24 months

Location

StateDelaware
CountyNew Castle
LocationSouth Of Wilmington
CarriesI 495 NB
CrossesUS 13
Coordinates39.71690, -75.55759

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length223.8 ft (68.2 m)
Max Span108.6 ft (33.1 m)
Deck Width68.6 ft (20.9 m)
Deck Area1425.4 sq m
Main Spans2
Year Built1975

Traffic

Avg Daily Traffic44,899 (2023)
Truck Traffic9%
Lanes On Bridge4
Lanes Under Bridge6

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1807 060

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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