US Bridges

Shady Bridge RD over Culbreth Marsh Ditch

Good

Kent County, Delaware · South of Marydel · Structure no. 2210A210

Built
2004
21 years old
Condition
Good
inspected September 2022
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
51 ft
2 main spans
Daily traffic
102
2021 count
Owner
State
State Highway Agency

About this bridge

Shady Bridge RD over Culbreth Marsh Ditch is a prestressed concrete box beam or girders - single or spread carrying Shady Bridge RD over Culbreth Marsh Ditch in Kent County, Delaware. It was built in 2004, so it is 21 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.

It carries about 102 vehicles a day, roughly 13% of them trucks, projected to reach 146 by 2042. The structure is 51 ft (15.6 m) long and 26 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesShady Bridge RD
CrossesCulbreth Marsh Ditch
LocationSouth of Marydel
RouteCounty Highway 210
Coordinates39.07195, -75.7311
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2022
Inspection intervalevery 48 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 adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating52.5 US tons
Inventory rating40.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length51 ft (15.6 m)
Longest span22 ft (6.8 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic102 (2021)
Projected traffic146 by 2042
Trucks13%
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 Shady Bridge RD over Culbreth Marsh Ditch built?

It was built in 2004, making it 21 years old in 2025.

What condition is Shady Bridge RD over Culbreth Marsh Ditch 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 September 2022.

How much traffic does Shady Bridge RD over Culbreth Marsh Ditch carry?

About 102 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Shady Bridge RD over Culbreth Marsh Ditch?

The structure is 51 ft (15.6 m) long with a longest span of 22 ft (6.8 m) and a deck 26 ft wide.

Who owns Shady Bridge RD over Culbreth Marsh Ditch?

It is owned by the State Highway Agency.