US Bridges

Valley RD over Mill Creek

GoodPosted for load

New Castle County, Delaware · S.W. of Hockessin · Structure no. 1603 294

Built
1994
31 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
10,078
2021 count
Owner
State
State Highway Agency

About this bridge

Valley RD over Mill Creek is a concrete culvert carrying Valley RD over Mill Creek in New Castle County, Delaware. It was built in 1994, so it is 31 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 10,078 vehicles a day, roughly 9% of them trucks, projected to reach 13,339 by 2042. The structure is 21 ft (6.4 m) long and 51 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesValley RD
CrossesMill Creek
LocationS.W. of Hockessin
RouteCounty Highway 294
Coordinates39.78206, -75.70756
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating57.1 US tons
Inventory rating44.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width51 ft (15.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,078 (2021)
Projected traffic13,339 by 2042
Trucks9%
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 Valley RD over Mill Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Valley RD over Mill 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 February 2023.

How much traffic does Valley RD over Mill Creek carry?

About 10,078 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is Valley RD over Mill Creek?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 51 ft wide.

Who owns Valley RD over Mill Creek?

It is owned by the State Highway Agency.