US Bridges

S-42-866 over Holston Creek

Fair

Spartanburg County, South Carolina · 1.0 MI S Campobello · Structure no. 000000000000146

Built
1922
103 years old
Condition
Fair
inspected September 2023
Type
Arch - Deck
Concrete
Length
45 ft
1 main span
Daily traffic
600
2023 count
Owner
State
State Highway Agency

About this bridge

S-42-866 over Holston Creek is a concrete arch - deck carrying S-42-866 over Holston Creek in Spartanburg County, South Carolina. It was built in 1922, so it is 103 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 600 vehicles a day, roughly 8% of them trucks, projected to reach 834 by 2043. The structure is 45 ft (13.7 m) long and 22 ft wide.

CarriesS-42-866
CrossesHolston Creek
Location1.0 MI S Campobello
RouteState Highway 866
Coordinates35.10771, -82.14014
Functional classRural Minor 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating34.3 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length45 ft (13.7 m)
Longest span45 ft (13.7 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2023)
Projected traffic834 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$180,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-42-866 over Holston Creek built?

It was built in 1922, making it 103 years old in 2025.

What condition is S-42-866 over Holston 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 September 2023.

How much traffic does S-42-866 over Holston Creek carry?

About 600 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is S-42-866 over Holston Creek?

The structure is 45 ft (13.7 m) long with a longest span of 45 ft (13.7 m) and a deck 22 ft wide.

Who owns S-42-866 over Holston Creek?

It is owned by the State Highway Agency.