US Bridges

Mallard Rd. over Army Creek

Fair

New Castle County, Delaware · S/W of New Castle · Structure no. 1659 000

Built
2005
20 years old
Condition
Fair
inspected May 2023
Type
Culvert
Steel
Length
77 ft
2 main spans
Daily traffic
99
2022 count
Owner
State
State Highway Agency

About this bridge

Mallard Rd. over Army Creek is a steel culvert carrying Mallard Rd. over Army Creek in New Castle County, Delaware. It was built in 2005, so it is 20 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 99 vehicles a day, roughly 11% of them trucks, projected to reach 123 by 2042. The structure is 77 ft (23.5 m) long. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesMallard Rd.
CrossesArmy Creek
LocationS/W of New Castle
RouteCity Street 0
CountyNew Castle County
StateDelaware
Coordinates39.64424, -75.63107
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span35 ft (10.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99 (2022)
Projected traffic123 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Mallard Rd. over Army Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Mallard Rd. 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 May 2023.

How much traffic does Mallard Rd. over Army Creek carry?

About 99 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Mallard Rd. over Army Creek?

The structure is 77 ft (23.5 m) long with a longest span of 35 ft (10.8 m).

Who owns Mallard Rd. over Army Creek?

It is owned by the State Highway Agency.