US Bridges

Limestone RD / SR7 over CSX Railroad

Fair

New Castle County, Delaware · N/W of Stanton · Structure no. 1655 031

Built
1960
65 years old, rebuilt 1995
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
142 ft
3 main spans
Daily traffic
43,221
2023 count
Owner
State
State Highway Agency

About this bridge

Limestone RD / SR7 over CSX Railroad is a steel stringer/multi-beam or girder carrying Limestone RD / SR7 over CSX Railroad in New Castle County, Delaware. It was built in 1960 and reconstructed in 1995, so it is 65 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 43,221 vehicles a day, roughly 8% of them trucks, projected to reach 59,370 by 2042. The structure is 142 ft (43.3 m) long and 98 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesLimestone RD / SR7
CrossesCSX Railroad
LocationN/W of Stanton
RouteState Highway 7
CountyNew Castle County
StateDelaware
Coordinates39.71829, -75.65291
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating60.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span53 ft (16.2 m)
Deck width98 ft (30 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,221 (2023)
Projected traffic59,370 by 2042
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Limestone RD / SR7 over CSX Railroad built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1995.

What condition is Limestone RD / SR7 over CSX Railroad 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 February 2024.

How much traffic does Limestone RD / SR7 over CSX Railroad carry?

About 43,221 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Limestone RD / SR7 over CSX Railroad?

The structure is 142 ft (43.3 m) long with a longest span of 53 ft (16.2 m) and a deck 98 ft wide.

Who owns Limestone RD / SR7 over CSX Railroad?

It is owned by the State Highway Agency.