US Bridges

SR1 Nb/Coastal Hy over Lewes Rehoboth Canal

Fair

Sussex County, Delaware · West of Rehoboth Beach · Structure no. 3150N014

Built
1985
40 years old, rebuilt 2020
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
407 ft
3 main spans
Daily traffic
15,600
2022 count
Owner
State
State Highway Agency

About this bridge

SR1 Nb/Coastal Hy over Lewes Rehoboth Canal is a prestressed concrete stringer/multi-beam or girder carrying SR1 Nb/Coastal Hy over Lewes Rehoboth Canal in Sussex County, Delaware. It was built in 1985 and reconstructed in 2020, so it is 40 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 15,600 vehicles a day, roughly 7% of them trucks, projected to reach 33,779 by 2042. The structure is 407 ft (124.2 m) long and 47 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesSR1 Nb/Coastal Hy
CrossesLewes Rehoboth Canal
LocationWest of Rehoboth Beach
RouteState Highway 1
CountySussex County
StateDelaware
Coordinates38.70881, -75.09318
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length407 ft (124.2 m)
Longest span170 ft (51.8 m)
Deck width47 ft (14.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,600 (2022)
Projected traffic33,779 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and waterway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was SR1 Nb/Coastal Hy over Lewes Rehoboth Canal built?

It was built in 1985, making it 40 years old in 2025. It was reconstructed in 2020.

What condition is SR1 Nb/Coastal Hy over Lewes Rehoboth Canal 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 July 2023.

How much traffic does SR1 Nb/Coastal Hy over Lewes Rehoboth Canal carry?

About 15,600 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is SR1 Nb/Coastal Hy over Lewes Rehoboth Canal?

The structure is 407 ft (124.2 m) long with a longest span of 170 ft (51.8 m) and a deck 47 ft wide.

Who owns SR1 Nb/Coastal Hy over Lewes Rehoboth Canal?

It is owned by the State Highway Agency.