US Bridges

N. Main ST / RD 65 over Duck Creek

Good

Kent County, Delaware · North Smyrna · Structure no. 2065A065

Built
1960
65 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
3,626
2022 count
Owner
State
State Highway Agency

About this bridge

N. Main ST / RD 65 over Duck Creek is a concrete culvert carrying N. Main ST / RD 65 over Duck Creek in Kent County, Delaware. It was built in 1960, so it is 65 years old, older than the Delaware average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,626 vehicles a day, roughly 12% of them trucks, projected to reach 3,559 by 2042. The structure is 32 ft (9.8 m) long and 36 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesN. Main ST / RD 65
CrossesDuck Creek
LocationNorth Smyrna
RouteCounty Highway 65
CountyKent County
StateDelaware
Coordinates39.3088, -75.62142
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating33.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,626 (2022)
Projected traffic3,559 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 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 N. Main ST / RD 65 over Duck Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is N. Main ST / RD 65 over Duck Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does N. Main ST / RD 65 over Duck Creek carry?

About 3,626 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is N. Main ST / RD 65 over Duck Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 36 ft wide.

Who owns N. Main ST / RD 65 over Duck Creek?

It is owned by the State Highway Agency.