US Bridges

S-7-77/SEASIDE RD over Station Creek

Good

Beaufort County, South Carolina · 9.4 MI SE Beaufort · Structure no. 000000000002000

Built
2003
22 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete Continuous
Length
66 ft
3 main spans
Daily traffic
375
2023 count
Owner
State
State Highway Agency

About this bridge

S-7-77/SEASIDE RD over Station Creek is a concrete continuous slab carrying S-7-77/SEASIDE RD over Station Creek in Beaufort County, South Carolina. It was built in 2003, so it is 22 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 6% of them trucks, projected to reach 548 by 2043. The structure is 66 ft (20.1 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesS-7-77/SEASIDE RD
CrossesStation Creek
Location9.4 MI SE Beaufort
RouteState Highway 77
CountyBeaufort County
StateSouth Carolina
Coordinates32.31231, -80.62742
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating50.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length66 ft (20.1 m)
Longest span22 ft (6.7 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (2023)
Projected traffic548 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-7-77/SEASIDE RD over Station Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is S-7-77/SEASIDE RD over Station 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 August 2023.

How much traffic does S-7-77/SEASIDE RD over Station Creek carry?

About 375 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is S-7-77/SEASIDE RD over Station Creek?

The structure is 66 ft (20.1 m) long with a longest span of 22 ft (6.7 m) and a deck 31 ft wide.

Who owns S-7-77/SEASIDE RD over Station Creek?

It is owned by the State Highway Agency.