US Bridges

Sc 901 over I-77

Fair

Chester County, South Carolina · 1.0 M N Fairfield CO · Structure no. 000000000007219

Built
1979
46 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
367 ft
4 main spans
Daily traffic
225
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 901 over I-77 is a steel continuous stringer/multi-beam or girder carrying Sc 901 over I-77 in Chester County, South Carolina. It was built in 1979, so it is 46 years old, younger 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 225 vehicles a day, roughly 10% of them trucks, projected to reach 329 by 2043. The structure is 367 ft (111.9 m) long and 47 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSc 901
CrossesI-77
Location1.0 M N Fairfield CO
RouteState Highway 901
CountyChester County
StateSouth Carolina
Coordinates34.56378, -81.00992
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
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 geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length367 ft (111.9 m)
Longest span118 ft (36 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2023)
Projected traffic329 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sc 901 over I-77 built?

It was built in 1979, making it 46 years old in 2025.

What condition is Sc 901 over I-77 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 March 2023.

How much traffic does Sc 901 over I-77 carry?

About 225 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Sc 901 over I-77?

The structure is 367 ft (111.9 m) long with a longest span of 118 ft (36 m) and a deck 47 ft wide.

Who owns Sc 901 over I-77?

It is owned by the State Highway Agency.