US Bridges

SR 7 / SR 4 over AMTRAK

Fair

New Castle County, Delaware · Stanton · Structure no. 1264S336

Built
1983
42 years old
Condition
Fair
inspected June 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
326 ft
3 main spans
Daily traffic
26,432
2021 count
Owner
State
State Highway Agency

About this bridge

SR 7 / SR 4 over AMTRAK is a steel continuous stringer/multi-beam or girder carrying SR 7 / SR 4 over AMTRAK in New Castle County, Delaware. It was built in 1983, so it is 42 years old, younger 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 26,432 vehicles a day, roughly 9% of them trucks, projected to reach 33,706 by 2042. The structure is 326 ft (99.4 m) long and 57 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 7 / SR 4
CrossesAMTRAK
LocationStanton
RouteState Highway 4
CountyNew Castle County
StateDelaware
Coordinates39.7027, -75.65324
Functional classUrban Other Principal 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 inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating46.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length326 ft (99.4 m)
Longest span138 ft (42.1 m)
Deck width57 ft (17.4 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,432 (2021)
Projected traffic33,706 by 2042
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

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 SR 7 / SR 4 over AMTRAK built?

It was built in 1983, making it 42 years old in 2025.

What condition is SR 7 / SR 4 over AMTRAK 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 June 2022.

How much traffic does SR 7 / SR 4 over AMTRAK carry?

About 26,432 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is SR 7 / SR 4 over AMTRAK?

The structure is 326 ft (99.4 m) long with a longest span of 138 ft (42.1 m) and a deck 57 ft wide.

Who owns SR 7 / SR 4 over AMTRAK?

It is owned by the State Highway Agency.