US Bridges

US 176/OLD Staterd over Dean Swamp

Good

Orangeburg County, South Carolina · 5 MI SE of Holly Hill · Structure no. 000000000010437

Built
2020
5 years old
Condition
Good
inspected December 2023
Type
Slab
Concrete Continuous
Length
160 ft
4 main spans
Daily traffic
4,400
2023 count
Owner
State
State Highway Agency

About this bridge

US 176/OLD Staterd over Dean Swamp is a concrete continuous slab carrying US 176/OLD Staterd over Dean Swamp in Orangeburg County, South Carolina. It was built in 2020, so it is 5 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 4,400 vehicles a day, roughly 17% of them trucks, projected to reach 6,996 by 2043. The structure is 160 ft (48.8 m) long and 47 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesUS 176/OLD Staterd
CrossesDean Swamp
Location5 MI SE of Holly Hill
RouteU.S. Route 176
CountyOrangeburg County
StateSouth Carolina
Coordinates33.27774, -80.35224
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating43.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length160 ft (48.8 m)
Longest span40 ft (12.2 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,400 (2023)
Projected traffic6,996 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 US 176/OLD Staterd over Dean Swamp built?

It was built in 2020, making it 5 years old in 2025.

What condition is US 176/OLD Staterd over Dean Swamp 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 December 2023.

How much traffic does US 176/OLD Staterd over Dean Swamp carry?

About 4,400 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is US 176/OLD Staterd over Dean Swamp?

The structure is 160 ft (48.8 m) long with a longest span of 40 ft (12.2 m) and a deck 47 ft wide.

Who owns US 176/OLD Staterd over Dean Swamp?

It is owned by the State Highway Agency.