US Bridges

Lebanon RD/SR10 EB over St. Jones River

Fair

Kent County, Delaware · South of Dover · Structure no. 2356C356

Built
1978
47 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
302 ft
3 main spans
Daily traffic
8,725
2022 count
Owner
State
State Highway Agency

About this bridge

Lebanon RD/SR10 EB over St. Jones River is a steel continuous stringer/multi-beam or girder carrying Lebanon RD/SR10 EB over St. Jones River in Kent County, Delaware. It was built in 1978, so it is 47 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 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 8,725 vehicles a day, roughly 7% of them trucks, projected to reach 9,553 by 2042. The structure is 302 ft (92.2 m) long and 41 ft wide.

CarriesLebanon RD/SR10 EB
CrossesSt. Jones River
LocationSouth of Dover
RouteState Highway 10
Coordinates39.12633, -75.49756
Functional classUrban Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating44 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length302 ft (92.2 m)
Longest span115 ft (35.1 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,725 (2022)
Projected traffic9,553 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Lebanon RD/SR10 EB over St. Jones River built?

It was built in 1978, making it 47 years old in 2025.

What condition is Lebanon RD/SR10 EB over St. Jones River 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 September 2023.

How much traffic does Lebanon RD/SR10 EB over St. Jones River carry?

About 8,725 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Lebanon RD/SR10 EB over St. Jones River?

The structure is 302 ft (92.2 m) long with a longest span of 115 ft (35.1 m) and a deck 41 ft wide.

Who owns Lebanon RD/SR10 EB over St. Jones River?

It is owned by the State Highway Agency.