US Bridges

Eighteenth Street over I 95

Fair

New Castle County, Delaware · Wilmington-Salesianum Hs · Structure no. 1760 504

Built
1966
59 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
208 ft
4 main spans
Daily traffic
4,719
2023 count
Owner
State
State Highway Agency

About this bridge

Eighteenth Street over I 95 is a steel stringer/multi-beam or girder carrying Eighteenth Street over I 95 in New Castle County, Delaware. It was built in 1966, so it is 59 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 6 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 4,719 vehicles a day, roughly 8% of them trucks, projected to reach 5,398 by 2042. The structure is 208 ft (63.4 m) long and 62 ft wide.

CarriesEighteenth Street
CrossesI 95
LocationWilmington-Salesianum Hs
RouteCounty Highway 504
Coordinates39.76094, -75.55116
Functional classUrban Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating49.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length208 ft (63.4 m)
Longest span66 ft (20 m)
Deck width62 ft (18.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,719 (2023)
Projected traffic5,398 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 Eighteenth Street over I 95 built?

It was built in 1966, making it 59 years old in 2025.

What condition is Eighteenth Street over I 95 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 May 2024.

How much traffic does Eighteenth Street over I 95 carry?

About 4,719 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Eighteenth Street over I 95?

The structure is 208 ft (63.4 m) long with a longest span of 66 ft (20 m) and a deck 62 ft wide.

Who owns Eighteenth Street over I 95?

It is owned by the State Highway Agency.