US Bridges

S-1550 over Fairforest Creek

Good

Spartanburg County, South Carolina · 3 MI W of Spartanburg · Structure no. 000000000010655

Built
1977
48 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
45 ft
1 main span
Daily traffic
1,200
2023 count
Owner
State
State Highway Agency

About this bridge

S-1550 over Fairforest Creek is a concrete culvert carrying S-1550 over Fairforest Creek in Spartanburg County, South Carolina. It was built in 1977, so it is 48 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,200 vehicles a day, roughly 2% of them trucks, projected to reach 1,800 by 2043. The structure is 45 ft (13.7 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesS-1550
CrossesFairforest Creek
Location3 MI W of Spartanburg
RouteState Highway 1550
Coordinates34.94154, -81.96499
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51 US tons
Inventory rating32.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span45 ft (13.7 m)
Deck width45 ft (13.7 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2023)
Projected traffic1,800 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$122,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-1550 over Fairforest Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is S-1550 over Fairforest Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does S-1550 over Fairforest Creek carry?

About 1,200 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is S-1550 over Fairforest Creek?

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

Who owns S-1550 over Fairforest Creek?

It is owned by the State Highway Agency.