US Bridges

Dupont Blvd / US13 over Smyrna River/Duck Creek

Fair

Kent County, Delaware · Smyrna · Structure no. 2001C001

Built
1995
30 years old
Condition
Fair
inspected July 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
108 ft
2 main spans
Daily traffic
22,296
2020 count
Owner
State
State Highway Agency

About this bridge

Dupont Blvd / US13 over Smyrna River/Duck Creek is a prestressed concrete box beam or girders - multiple carrying Dupont Blvd / US13 over Smyrna River/Duck Creek in Kent County, Delaware. It was built in 1995, so it is 30 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 22,296 vehicles a day, roughly 7% of them trucks, projected to reach 27,712 by 2042. The structure is 108 ft (32.9 m) long and 82 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesDupont Blvd / US13
CrossesSmyrna River/Duck Creek
LocationSmyrna
RouteU.S. Route 13
CountyKent County
StateDelaware
Coordinates39.30883, -75.60919
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating48.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length108 ft (32.9 m)
Longest span51 ft (15.6 m)
Deck width82 ft (25.1 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,296 (2020)
Projected traffic27,712 by 2042
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Dupont Blvd / US13 over Smyrna River/Duck Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Dupont Blvd / US13 over Smyrna River/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 July 2021.

How much traffic does Dupont Blvd / US13 over Smyrna River/Duck Creek carry?

About 22,296 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Dupont Blvd / US13 over Smyrna River/Duck Creek?

The structure is 108 ft (32.9 m) long with a longest span of 51 ft (15.6 m) and a deck 82 ft wide.

Who owns Dupont Blvd / US13 over Smyrna River/Duck Creek?

It is owned by the State Highway Agency.