Structure 1758H057 · New Castle County, DE

Mlk BLVD over Monroe ST & Madison ST

Carries Mlk BLVD over Monroe ST & Madison ST, Wilmington.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT594 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

594 ft end to end, longest span 87 ft: about 1.7 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.

Built197650 years old
Length594.5 ft181.2 m
Daily traffic19,236counted 2023
Last inspectedOctober 2024every 24 months

Location

StateDelaware
CountyNew Castle
LocationWilmington
CarriesMlk BLVD
CrossesMonroe ST & Madison ST
Coordinates39.74099, -75.55951

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length594.5 ft (181.2 m)
Max Span86.6 ft (26.4 m)
Deck Width41.7 ft (12.7 m)
Deck Area2301.2 sq m
Main Spans7
Year Built1976

Traffic

Avg Daily Traffic19,236 (2023)
Truck Traffic8%
Lanes On Bridge2
Lanes Under Bridge23

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1758H057

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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