US Bridges

SR1 over Eagle Run

Fair

New Castle County, Delaware · Christiana · Structure no. 1331N067

Built
1992
33 years old, rebuilt 2013
Condition
Fair
inspected July 2022
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
206 ft
3 main spans
Daily traffic
44,586
2021 count
Owner
State
State Highway Agency

About this bridge

SR1 over Eagle Run is a prestressed concrete box beam or girders - single or spread carrying SR1 over Eagle Run in New Castle County, Delaware. It was built in 1992 and reconstructed in 2013, so it is 33 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 44,586 vehicles a day, roughly 9% of them trucks, projected to reach 53,396 by 2042. The structure is 206 ft (62.8 m) long and 57 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR1
CrossesEagle Run
LocationChristiana
RouteState Highway 1
CountyNew Castle County
StateDelaware
Coordinates39.67066, -75.65456
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating54.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length206 ft (62.8 m)
Longest span70 ft (21.3 m)
Deck width57 ft (17.3 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,586 (2021)
Projected traffic53,396 by 2042
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1 over Eagle Run built?

It was built in 1992, making it 33 years old in 2025. It was reconstructed in 2013.

What condition is SR1 over Eagle Run 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 July 2022.

How much traffic does SR1 over Eagle Run carry?

About 44,586 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is SR1 over Eagle Run?

The structure is 206 ft (62.8 m) long with a longest span of 70 ft (21.3 m) and a deck 57 ft wide.

Who owns SR1 over Eagle Run?

It is owned by the State Highway Agency.