US Bridges

Dupont HWY/US13 over Army Creek

Fair

New Castle County, Delaware · South of New Castle · Structure no. 1660 082

Built
1922
103 years old, rebuilt 1975
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
40,517
2023 count
Owner
State
State Highway Agency

About this bridge

Dupont HWY/US13 over Army Creek is a concrete culvert carrying Dupont HWY/US13 over Army Creek in New Castle County, Delaware. It was built in 1922 and reconstructed in 1975, so it is 103 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.

It carries about 40,517 vehicles a day, roughly 8% of them trucks, projected to reach 61,160 by 2042. The structure is 21 ft (6.3 m) long and 93 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesDupont HWY/US13
CrossesArmy Creek
LocationSouth of New Castle
RouteU.S. Route 13
CountyNew Castle County
StateDelaware
Coordinates39.64875, -75.62149
Functional classUrban Other Principal 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating43.5 US tons
Inventory rating33.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length21 ft (6.3 m)
Longest span21 ft (6.3 m)
Deck width93 ft (28.4 m)
Roadway width87 ft (26.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,517 (2023)
Projected traffic61,160 by 2042
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 HWY/US13 over Army Creek built?

It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1975.

What condition is Dupont HWY/US13 over Army 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 June 2024.

How much traffic does Dupont HWY/US13 over Army Creek carry?

About 40,517 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Dupont HWY/US13 over Army Creek?

The structure is 21 ft (6.3 m) long with a longest span of 21 ft (6.3 m) and a deck 93 ft wide.

Who owns Dupont HWY/US13 over Army Creek?

It is owned by the State Highway Agency.