US Bridges

S-38-74 over Two Mile Swamp

Fair

Orangeburg County, South Carolina · 6MI E Norway · Structure no. 000000000003952

Built
1962
63 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
28 ft
3 main spans
Daily traffic
225
2023 count
Owner
State
State Highway Agency

About this bridge

S-38-74 over Two Mile Swamp is a concrete culvert carrying S-38-74 over Two Mile Swamp in Orangeburg County, South Carolina. It was built in 1962, so it is 63 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 225 vehicles a day, roughly 4% of them trucks, projected to reach 329 by 2043. The structure is 28 ft (8.5 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-38-74
CrossesTwo Mile Swamp
Location6MI E Norway
RouteState Highway 74
Coordinates33.45323, -81.03819
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length28 ft (8.5 m)
Longest span8 ft (2.4 m)
Deck width29 ft (8.9 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2023)
Projected traffic329 by 2043
Trucks4%
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 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 S-38-74 over Two Mile Swamp built?

It was built in 1962, making it 63 years old in 2025.

What condition is S-38-74 over Two Mile Swamp 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 2024.

How much traffic does S-38-74 over Two Mile Swamp carry?

About 225 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is S-38-74 over Two Mile Swamp?

The structure is 28 ft (8.5 m) long with a longest span of 8 ft (2.4 m) and a deck 29 ft wide.

Who owns S-38-74 over Two Mile Swamp?

It is owned by the State Highway Agency.