US Bridges

Lebanon RD/SR10 WB over St. Jones River

Poor

Kent County, Delaware · South of Dover · Structure no. 2356B356

Built
1965
60 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
302 ft
3 main spans
Daily traffic
8,726
2022 count
Owner
State
State Highway Agency

About this bridge

Lebanon RD/SR10 WB over St. Jones River is a steel continuous stringer/multi-beam or girder carrying Lebanon RD/SR10 WB over St. Jones River in Kent County, Delaware. It was built in 1965, so it is 60 years old, older than the Delaware average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 8,726 vehicles a day, roughly 7% of them trucks, projected to reach 9,551 by 2042. The structure is 302 ft (92.2 m) long and 34 ft wide.

CarriesLebanon RD/SR10 WB
CrossesSt. Jones River
LocationSouth of Dover
RouteState Highway 10
Coordinates39.12644, -75.49772
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, 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 evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length302 ft (92.2 m)
Longest span115 ft (35.1 m)
Deck width34 ft (10.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,726 (2022)
Projected traffic9,551 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

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

It was built in 1965, making it 60 years old in 2025.

What condition is Lebanon RD/SR10 WB over St. Jones River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

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

About 8,726 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Lebanon RD/SR10 WB 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 34 ft wide.

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

It is owned by the State Highway Agency.