US Bridges

S-18-174/CARTER RD over Trib to Captains Creek

Good

Dorchester County, South Carolina · 1.2 MI SW Ridgeville · Structure no. 000000000001952

Built
2005
20 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
375
2023 count
Owner
State
State Highway Agency

About this bridge

S-18-174/CARTER RD over Trib to Captains Creek is a prestressed concrete box beam or girders - multiple carrying S-18-174/CARTER RD over Trib to Captains Creek in Dorchester County, South Carolina. It was built in 2005, so it is 20 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 375 vehicles a day, roughly 5% of them trucks, projected to reach 480 by 2043. The structure is 40 ft (12.2 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesS-18-174/CARTER RD
CrossesTrib to Captains Creek
Location1.2 MI SW Ridgeville
RouteState Highway 174
Coordinates33.08022, -80.32596
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.6 US tons
Inventory rating58.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (2023)
Projected traffic480 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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-18-174/CARTER RD over Trib to Captains Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is S-18-174/CARTER RD over Trib to Captains 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 April 2023.

How much traffic does S-18-174/CARTER RD over Trib to Captains Creek carry?

About 375 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-18-174/CARTER RD over Trib to Captains Creek?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.

Who owns S-18-174/CARTER RD over Trib to Captains Creek?

It is owned by the State Highway Agency.