US Bridges

Seashore Highway over Deep Creek

GoodPosted for load

Sussex County, Delaware · West of Georgetown · Structure no. 3644 018

Built
1922
103 years old, rebuilt 1965
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
34 ft
1 main span
Daily traffic
13,664
2022 count
Owner
State
State Highway Agency

About this bridge

Seashore Highway over Deep Creek is a steel stringer/multi-beam or girder carrying Seashore Highway over Deep Creek in Sussex County, Delaware. It was built in 1922 and reconstructed in 1965, 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 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 13,664 vehicles a day, roughly 14% of them trucks, projected to reach 11,497 by 2042. The structure is 34 ft (10.4 m) long and 42 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesSeashore Highway
CrossesDeep Creek
LocationWest of Georgetown
RouteState Highway 18
Coordinates38.69256, -75.47799
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length34 ft (10.4 m)
Longest span30 ft (9.1 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,664 (2022)
Projected traffic11,497 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed4.3 mi (7 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 Seashore Highway over Deep Creek built?

It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1965.

What condition is Seashore Highway over Deep 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 May 2023.

How much traffic does Seashore Highway over Deep Creek carry?

About 13,664 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is Seashore Highway over Deep Creek?

The structure is 34 ft (10.4 m) long with a longest span of 30 ft (9.1 m) and a deck 42 ft wide.

Who owns Seashore Highway over Deep Creek?

It is owned by the State Highway Agency.