US Bridges

S-29-12 over L and C Railroad

FairPosted for load

Lancaster County, South Carolina · Springdale Rd-Lancaster · Structure no. 000000000002383

Built
1956
69 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
65 ft
3 main spans
Daily traffic
7,900
2023 count
Owner
State
State Highway Agency

About this bridge

S-29-12 over L and C Railroad is a steel continuous stringer/multi-beam or girder carrying S-29-12 over L and C Railroad in Lancaster County, South Carolina. It was built in 1956, so it is 69 years old, older than the South Carolina average of 48 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. Its operating status is: posted for load restriction.

It carries about 7,900 vehicles a day, roughly 2% of them trucks, projected to reach 11,139 by 2043. The structure is 65 ft (19.8 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesS-29-12
CrossesL and C Railroad
LocationSpringdale Rd-Lancaster
RouteState Highway 12
CountyLancaster County
StateSouth Carolina
Coordinates34.70793, -80.78458
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.8 US tons
Inventory rating15.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length65 ft (19.8 m)
Longest span25 ft (7.6 m)
Deck width34 ft (10.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,900 (2023)
Projected traffic11,139 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$518,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-29-12 over L and C Railroad built?

It was built in 1956, making it 69 years old in 2025.

What condition is S-29-12 over L and C 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 July 2023.

How much traffic does S-29-12 over L and C Railroad carry?

About 7,900 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is S-29-12 over L and C Railroad?

The structure is 65 ft (19.8 m) long with a longest span of 25 ft (7.6 m) and a deck 34 ft wide.

Who owns S-29-12 over L and C Railroad?

It is owned by the State Highway Agency.