US Bridges

Sc 48 over Mill Creek

Fair

Richland County, South Carolina · 8 MI SE of Columbia · Structure no. 000000000001265

Built
1942
83 years old, rebuilt 1971
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
35 ft
4 main spans
Daily traffic
6,200
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 48 over Mill Creek is a concrete culvert carrying Sc 48 over Mill Creek in Richland County, South Carolina. It was built in 1942 and reconstructed in 1971, so it is 83 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 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 6,200 vehicles a day, roughly 9% of them trucks, projected to reach 8,370 by 2043. The structure is 35 ft (10.7 m) long and 54 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSc 48
CrossesMill Creek
Location8 MI SE of Columbia
RouteState Highway 48
Coordinates33.91693, -80.94792
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating32.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length35 ft (10.7 m)
Longest span8 ft (2.4 m)
Deck width54 ft (16.5 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,200 (2023)
Projected traffic8,370 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 48 over Mill Creek built?

It was built in 1942, making it 83 years old in 2025. It was reconstructed in 1971.

What condition is Sc 48 over Mill Creek 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 December 2023.

How much traffic does Sc 48 over Mill Creek carry?

About 6,200 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Sc 48 over Mill Creek?

The structure is 35 ft (10.7 m) long with a longest span of 8 ft (2.4 m) and a deck 54 ft wide.

Who owns Sc 48 over Mill Creek?

It is owned by the State Highway Agency.