US Bridges

South Heald ST over Norfolk Southern

PoorPosted for load

New Castle County, Delaware · South Wilmington · Structure no. 1684 028

Built
1942
83 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
608 ft
1 main span
Daily traffic
7,915
2023 count
Owner
State
State Highway Agency

About this bridge

South Heald ST over Norfolk Southern is a steel stringer/multi-beam or girder carrying South Heald ST over Norfolk Southern in New Castle County, Delaware. It was built in 1942, so it is 83 years old, older than the Delaware average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 7,915 vehicles a day, roughly 7% of them trucks, projected to reach 10,858 by 2042. The structure is 608 ft (185.3 m) long and 58 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesSouth Heald ST
CrossesNorfolk Southern
LocationSouth Wilmington
RouteU.S. Route 13
Coordinates39.72598, -75.54603
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19 US tons
Inventory rating14.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+20 approach)
Design loadH 20
Structure length608 ft (185.3 m)
Longest span47 ft (14.4 m)
Deck width58 ft (17.7 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,915 (2023)
Projected traffic10,858 by 2042
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$5.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was South Heald ST over Norfolk Southern built?

It was built in 1942, making it 83 years old in 2025.

What condition is South Heald ST over Norfolk Southern in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does South Heald ST over Norfolk Southern carry?

About 7,915 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is South Heald ST over Norfolk Southern?

The structure is 608 ft (185.3 m) long with a longest span of 47 ft (14.4 m) and a deck 58 ft wide.

Who owns South Heald ST over Norfolk Southern?

It is owned by the State Highway Agency.