US Bridges

S-11-30 over Doolittle Creek

Good

Cherokee County, South Carolina · 4.3 MI SW Blacksburg · Structure no. 000000000008982

Built
1996
29 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
160 ft
3 main spans
Daily traffic
950
2023 count
Owner
State
State Highway Agency

About this bridge

S-11-30 over Doolittle Creek is a prestressed concrete stringer/multi-beam or girder carrying S-11-30 over Doolittle Creek in Cherokee County, South Carolina. It was built in 1996, so it is 29 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 950 vehicles a day, roughly 5% of them trucks, projected to reach 1,216 by 2043. The structure is 160 ft (48.8 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesS-11-30
CrossesDoolittle Creek
Location4.3 MI SW Blacksburg
RouteState Highway 30
Coordinates35.06694, -81.5475
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating55.3 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span53 ft (16.2 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2023)
Projected traffic1,216 by 2043
Trucks5%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-11-30 over Doolittle Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is S-11-30 over Doolittle Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does S-11-30 over Doolittle Creek carry?

About 950 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-11-30 over Doolittle Creek?

The structure is 160 ft (48.8 m) long with a longest span of 53 ft (16.2 m) and a deck 31 ft wide.

Who owns S-11-30 over Doolittle Creek?

It is owned by the State Highway Agency.