US Bridges

S-1-307 over CSX RR

FairPosted for load

Abbeville County, South Carolina · 4.7MI SW Abbeville · Structure no. 000000000004686

Built
1966
59 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
120 ft
1 main span
Daily traffic
125
2023 count
Owner
State
State Highway Agency

About this bridge

S-1-307 over CSX RR is a steel stringer/multi-beam or girder carrying S-1-307 over CSX RR in Abbeville County, South Carolina. It was built in 1966, so it is 59 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. Its operating status is: posted for load restriction.

It carries about 125 vehicles a day, roughly 5% of them trucks, projected to reach 174 by 2043. The structure is 120 ft (36.6 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesS-1-307
CrossesCSX RR
Location4.7MI SW Abbeville
RouteState Highway 307
CountyAbbeville County
StateSouth Carolina
Coordinates34.14388, -82.44953
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.7 US tons
Inventory rating14.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1 (+6 approach)
Design loadH 10
Structure length120 ft (36.6 m)
Longest span46 ft (14 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2023)
Projected traffic174 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.8 mi (11 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$153,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-1-307 over CSX RR built?

It was built in 1966, making it 59 years old in 2025.

What condition is S-1-307 over CSX RR 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 October 2023.

How much traffic does S-1-307 over CSX RR carry?

About 125 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-1-307 over CSX RR?

The structure is 120 ft (36.6 m) long with a longest span of 46 ft (14 m) and a deck 28 ft wide.

Who owns S-1-307 over CSX RR?

It is owned by the State Highway Agency.