US Bridges

Loockerman ST over St. Jones River

Fair

Kent County, Delaware · Dover · Structure no. 2023A023

Built
1934
91 years old
Condition
Fair
inspected August 2023
Type
Arch - Deck
Concrete
Length
52 ft
1 main span
Daily traffic
7,666
2022 count
Owner
State
State Highway Agency

About this bridge

Loockerman ST over St. Jones River is a concrete arch - deck carrying Loockerman ST over St. Jones River in Kent County, Delaware. It was built in 1934, so it is 91 years old, older 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 7,666 vehicles a day, roughly 7% of them trucks, projected to reach 7,712 by 2042. The structure is 52 ft (15.9 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesLoockerman ST
CrossesSt. Jones River
LocationDover
RouteCounty Highway 23
CountyKent County
StateDelaware
Coordinates39.15934, -75.51899
Functional classUrban Minor 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
Superstructure7 GoodSome minor problems.
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length52 ft (15.9 m)
Longest span52 ft (15.9 m)
Deck width42 ft (12.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,666 (2022)
Projected traffic7,712 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$330,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Loockerman ST over St. Jones River built?

It was built in 1934, making it 91 years old in 2025.

What condition is Loockerman ST 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 August 2023.

How much traffic does Loockerman ST over St. Jones River carry?

About 7,666 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Loockerman ST over St. Jones River?

The structure is 52 ft (15.9 m) long with a longest span of 52 ft (15.9 m) and a deck 42 ft wide.

Who owns Loockerman ST over St. Jones River?

It is owned by the State Highway Agency.