US Bridges

New Sweden ST over Christina River

Good

New Castle County, Delaware · Wilmington · Structure no. 1691 029B

Built
2019
6 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
478 ft
3 main spans
Daily traffic
99
2022 count
Owner
State
State Highway Agency

About this bridge

New Sweden ST over Christina River is a prestressed concrete continuous stringer/multi-beam or girder carrying New Sweden ST over Christina River in New Castle County, Delaware. It was built in 2019, so it is 6 years old, younger than the Delaware average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 99 vehicles a day, roughly 8% of them trucks, projected to reach 121 by 2042. The structure is 478 ft (145.6 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNew Sweden ST
CrossesChristina River
LocationWilmington
RouteCounty Highway 29B
Coordinates39.72789, -75.56092
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating42.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length478 ft (145.6 m)
Longest span180 ft (54.9 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99 (2022)
Projected traffic121 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was New Sweden ST over Christina River built?

It was built in 2019, making it 6 years old in 2025.

What condition is New Sweden ST over Christina River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does New Sweden ST over Christina River carry?

About 99 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is New Sweden ST over Christina River?

The structure is 478 ft (145.6 m) long with a longest span of 180 ft (54.9 m) and a deck 45 ft wide.

Who owns New Sweden ST over Christina River?

It is owned by the State Highway Agency.