US Bridges

C-42-843 over Trib to Lawson Fork Ck

Fair

Spartanburg County, South Carolina · 3.0 MI E Inman · Structure no. 000000000007951

Built
1985
40 years old
Condition
Fair
inspected November 2023
Type
Channel Beam
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
225
2023 count
Owner
County
County Highway Agency

About this bridge

C-42-843 over Trib to Lawson Fork Ck is a prestressed concrete channel beam carrying C-42-843 over Trib to Lawson Fork Ck in Spartanburg County, South Carolina. It was built in 1985, so it is 40 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 6 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 5% of them trucks, projected to reach 288 by 2043. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesC-42-843
CrossesTrib to Lawson Fork Ck
Location3.0 MI E Inman
RouteCounty Highway 843
Coordinates35.03628, -82.03968
Functional classUrban Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating28.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+1 approach)
Design loadH 15
Structure length45 ft (13.7 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2023)
Projected traffic288 by 2043
Trucks5%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C-42-843 over Trib to Lawson Fork Ck built?

It was built in 1985, making it 40 years old in 2025.

What condition is C-42-843 over Trib to Lawson Fork Ck 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 November 2023.

How much traffic does C-42-843 over Trib to Lawson Fork Ck carry?

About 225 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is C-42-843 over Trib to Lawson Fork Ck?

The structure is 45 ft (13.7 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns C-42-843 over Trib to Lawson Fork Ck?

It is owned by the County Highway Agency.