US Bridges

S-9-257 over Trib to Big Beaver CR

FairPosted for load

Calhoun County, South Carolina · 12 MI NW ST Mathews · Structure no. 000000000004943

Built
1967
58 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
45 ft
3 main spans
Daily traffic
25
2023 count
Owner
State
State Highway Agency

About this bridge

S-9-257 over Trib to Big Beaver CR is a concrete slab carrying S-9-257 over Trib to Big Beaver CR in Calhoun County, South Carolina. It was built in 1967, so it is 58 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 25 vehicles a day, projected to reach 32 by 2043. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesS-9-257
CrossesTrib to Big Beaver CR
Location12 MI NW ST Mathews
RouteState Highway 257
CountyCalhoun County
StateSouth Carolina
Coordinates33.75679, -80.86567
Functional classRural 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.
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 inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47.2 US tons
Inventory rating29.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 10
Structure length45 ft (13.7 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic32 by 2043
Trucks0%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$69,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-9-257 over Trib to Big Beaver CR built?

It was built in 1967, making it 58 years old in 2025.

What condition is S-9-257 over Trib to Big Beaver CR 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 July 2024.

How much traffic does S-9-257 over Trib to Big Beaver CR carry?

About 25 vehicles per day (2023 count).

How long is S-9-257 over Trib to Big Beaver CR?

The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns S-9-257 over Trib to Big Beaver CR?

It is owned by the State Highway Agency.