US Bridges

Mlk Blvd over Monroe ST & Madison ST

Fair

New Castle County, Delaware · Wilmington · Structure no. 1758H057

Built
1976
49 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
594 ft
7 main spans
Daily traffic
19,236
2023 count
Owner
State
State Highway Agency

About this bridge

Mlk Blvd over Monroe ST & Madison ST is a steel stringer/multi-beam or girder carrying Mlk Blvd over Monroe ST & Madison ST in New Castle County, Delaware. It was built in 1976, so it is 49 years old, older than the Delaware average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 19,236 vehicles a day, roughly 8% of them trucks, projected to reach 16,327 by 2042. The structure is 594 ft (181.2 m) long and 42 ft wide.

Location

Open in Google Maps
CarriesMlk Blvd
CrossesMonroe ST & Madison ST
LocationWilmington
RouteInterstate 95
CountyNew Castle County
StateDelaware
Coordinates39.74099, -75.55951
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.5 US tons
Inventory rating56.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20 + Mod
Structure length594 ft (181.2 m)
Longest span87 ft (26.4 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic19,236 (2023)
Projected traffic16,327 by 2042
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mlk Blvd over Monroe ST & Madison ST built?

It was built in 1976, making it 49 years old in 2025.

What condition is Mlk Blvd over Monroe ST & Madison ST in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does Mlk Blvd over Monroe ST & Madison ST carry?

About 19,236 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Mlk Blvd over Monroe ST & Madison ST?

The structure is 594 ft (181.2 m) long with a longest span of 87 ft (26.4 m) and a deck 42 ft wide.

Who owns Mlk Blvd over Monroe ST & Madison ST?

It is owned by the State Highway Agency.