US Bridges

Sc 165/DELMAR HWY over Rantowles Creek

Good

Dorchester County, South Carolina · 7.5MI SW Summerville · Structure no. 000000000001820

Built
2009
16 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
7,700
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 165/DELMAR HWY over Rantowles Creek is a concrete culvert carrying Sc 165/DELMAR HWY over Rantowles Creek in Dorchester County, South Carolina. It was built in 2009, so it is 16 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 7,700 vehicles a day, roughly 12% of them trucks, projected to reach 9,394 by 2043. The structure is 33 ft (10.1 m) long and 80 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesSc 165/DELMAR HWY
CrossesRantowles Creek
Location7.5MI SW Summerville
RouteState Highway 165
Coordinates32.92033, -80.23481
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101.4 US tons
Inventory rating78.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width80 ft (24.4 m)
Roadway width72 ft (22 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,700 (2023)
Projected traffic9,394 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 165/DELMAR HWY over Rantowles Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Sc 165/DELMAR HWY over Rantowles 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 Sc 165/DELMAR HWY over Rantowles Creek carry?

About 7,700 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Sc 165/DELMAR HWY over Rantowles Creek?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 80 ft wide.

Who owns Sc 165/DELMAR HWY over Rantowles Creek?

It is owned by the State Highway Agency.