US Bridges

Smyrna Landing RD over Duck Creek

Fair

Kent County, Delaware · East of Smyrna · Structure no. 2064A076

Built
1998
27 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
105 ft
2 main spans
Daily traffic
490
2023 count
Owner
State
State Highway Agency

About this bridge

Smyrna Landing RD over Duck Creek is a prestressed concrete box beam or girders - single or spread carrying Smyrna Landing RD over Duck Creek in Kent County, Delaware. It was built in 1998, so it is 27 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 6 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 490 vehicles a day, roughly 11% of them trucks, projected to reach 625 by 2042. The structure is 105 ft (32 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSmyrna Landing RD
CrossesDuck Creek
LocationEast of Smyrna
RouteCounty Highway 64
Coordinates39.30831, -75.59393
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.5 US tons
Inventory rating35.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length105 ft (32 m)
Longest span50 ft (15.2 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic490 (2023)
Projected traffic625 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Smyrna Landing RD over Duck Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Smyrna Landing RD over Duck 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 2024.

How much traffic does Smyrna Landing RD over Duck Creek carry?

About 490 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Smyrna Landing RD over Duck Creek?

The structure is 105 ft (32 m) long with a longest span of 50 ft (15.2 m) and a deck 36 ft wide.

Who owns Smyrna Landing RD over Duck Creek?

It is owned by the State Highway Agency.