US Bridges

Hills Market RD over Black Swamp Creek

FairPosted for load

Kent County, Delaware · S/W of Felton · Structure no. 2285A285

Built
1949
76 years old, rebuilt 1969
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
667
2022 count
Owner
State
State Highway Agency

About this bridge

Hills Market RD over Black Swamp Creek is a concrete slab carrying Hills Market RD over Black Swamp Creek in Kent County, Delaware. It was built in 1949 and reconstructed in 1969, so it is 76 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 667 vehicles a day, roughly 17% of them trucks, projected to reach 743 by 2042. The structure is 26 ft (7.9 m) long and 31 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesHills Market RD
CrossesBlack Swamp Creek
LocationS/W of Felton
RouteCounty Highway 285
Coordinates38.97593, -75.6017
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length26 ft (7.9 m)
Longest span23 ft (7 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic667 (2022)
Projected traffic743 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hills Market RD over Black Swamp Creek built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1969.

What condition is Hills Market RD over Black Swamp Creek 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 October 2023.

How much traffic does Hills Market RD over Black Swamp Creek carry?

About 667 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Hills Market RD over Black Swamp Creek?

The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7 m) and a deck 31 ft wide.

Who owns Hills Market RD over Black Swamp Creek?

It is owned by the State Highway Agency.