US Bridges

S-29-71 over Bear Creek

Fair

Lancaster County, South Carolina · 6.5MI SE Lancaster · Structure no. 000000000000199

Built
1925
100 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete
Length
54 ft
2 main spans
Daily traffic
500
2023 count
Owner
State
State Highway Agency

About this bridge

S-29-71 over Bear Creek is a concrete tee beam carrying S-29-71 over Bear Creek in Lancaster County, South Carolina. It was built in 1925, so it is 100 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 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 500 vehicles a day, roughly 9% of them trucks, projected to reach 730 by 2024. The structure is 54 ft (16.5 m) long and 21 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-29-71
CrossesBear Creek
Location6.5MI SE Lancaster
RouteState Highway 71
Coordinates34.6625, -80.6825
Functional classRural Major 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
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating48.9 US tons
Inventory rating37.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length54 ft (16.5 m)
Longest span27 ft (8.2 m)
Deck width21 ft (6.3 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2023)
Projected traffic730 by 2024
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$206,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-29-71 over Bear Creek built?

It was built in 1925, making it 100 years old in 2025.

What condition is S-29-71 over Bear 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 July 2024.

How much traffic does S-29-71 over Bear Creek carry?

About 500 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is S-29-71 over Bear Creek?

The structure is 54 ft (16.5 m) long with a longest span of 27 ft (8.2 m) and a deck 21 ft wide.

Who owns S-29-71 over Bear Creek?

It is owned by the State Highway Agency.