US Bridges

Market ST / US13 B over Shellpot Creek

Fair

New Castle County, Delaware · East of Wilmington · Structure no. 1550 024

Built
1910
115 years old, rebuilt 1995
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
9,580
2022 count
Owner
State
State Highway Agency

About this bridge

Market ST / US13 B over Shellpot Creek is a concrete culvert carrying Market ST / US13 B over Shellpot Creek in New Castle County, Delaware. It was built in 1910 and reconstructed in 1995, so it is 115 years old, older 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 5 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 9,580 vehicles a day, roughly 7% of them trucks, projected to reach 10,365 by 2042. The structure is 35 ft (10.6 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMarket ST / US13 B
CrossesShellpot Creek
LocationEast of Wilmington
RouteU.S. Route 13B
CountyNew Castle County
StateDelaware
Coordinates39.76304, -75.51704
Functional classUrban Minor 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
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
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length35 ft (10.6 m)
Longest span14 ft (4.4 m)
Deck width40 ft (12.3 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,580 (2022)
Projected traffic10,365 by 2042
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$500,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Market ST / US13 B over Shellpot Creek built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1995.

What condition is Market ST / US13 B over Shellpot 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 April 2024.

How much traffic does Market ST / US13 B over Shellpot Creek carry?

About 9,580 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Market ST / US13 B over Shellpot Creek?

The structure is 35 ft (10.6 m) long with a longest span of 14 ft (4.4 m) and a deck 40 ft wide.

Who owns Market ST / US13 B over Shellpot Creek?

It is owned by the State Highway Agency.