US Bridges

Sc 66 over Duncan Creek

Fair

Newberry County, South Carolina · 15.0 MI N of Newberry · Structure no. 000000000004181

Built
1963
62 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete
Length
240 ft
8 main spans
Daily traffic
1,900
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 66 over Duncan Creek is a concrete tee beam carrying Sc 66 over Duncan Creek in Newberry County, South Carolina. It was built in 1963, so it is 62 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 1,900 vehicles a day, roughly 6% of them trucks, projected to reach 2,774 by 2043. The structure is 240 ft (73.2 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSc 66
CrossesDuncan Creek
Location15.0 MI N of Newberry
RouteState Highway 66
CountyNewberry County
StateSouth Carolina
Coordinates34.49314, -81.62113
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating34.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span30 ft (9.1 m)
Deck width39 ft (11.9 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2023)
Projected traffic2,774 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 Sc 66 over Duncan Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Sc 66 over Duncan 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 July 2024.

How much traffic does Sc 66 over Duncan Creek carry?

About 1,900 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Sc 66 over Duncan Creek?

The structure is 240 ft (73.2 m) long with a longest span of 30 ft (9.1 m) and a deck 39 ft wide.

Who owns Sc 66 over Duncan Creek?

It is owned by the State Highway Agency.