US Bridges

I 95 NB to SR 4 over Liberty Street

Fair

New Castle County, Delaware · Wilmington · Structure no. 1749 6142

Built
1964
61 years old, rebuilt 1980
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
609 ft
6 main spans
Daily traffic
11,555
2022 count
Owner
State
State Highway Agency

About this bridge

I 95 NB to SR 4 over Liberty Street is a steel stringer/multi-beam or girder carrying I 95 NB to SR 4 over Liberty Street in New Castle County, Delaware. It was built in 1964 and reconstructed in 1980, so it is 61 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 11,555 vehicles a day, roughly 11% of them trucks, projected to reach 14,362 by 2042. The structure is 609 ft (185.6 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesI 95 NB to SR 4
CrossesLiberty Street
LocationWilmington
RouteInterstate 95
CountyNew Castle County
StateDelaware
Coordinates39.738, -75.56232
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length609 ft (185.6 m)
Longest span143 ft (43.6 m)
Deck width27 ft (8.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,555 (2022)
Projected traffic14,362 by 2042
Trucks11%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed6.2 mi (10 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 95 NB to SR 4 over Liberty Street built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1980.

What condition is I 95 NB to SR 4 over Liberty Street 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 March 2023.

How much traffic does I 95 NB to SR 4 over Liberty Street carry?

About 11,555 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is I 95 NB to SR 4 over Liberty Street?

The structure is 609 ft (185.6 m) long with a longest span of 143 ft (43.6 m) and a deck 27 ft wide.

Who owns I 95 NB to SR 4 over Liberty Street?

It is owned by the State Highway Agency.