US Bridges

Sc 905 over Kingston Lake

Fair

Horry County, South Carolina · City of Conway · Structure no. 000000000003901

Built
1962
63 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
270 ft
1 main span
Daily traffic
10,900
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 905 over Kingston Lake is a steel stringer/multi-beam or girder carrying Sc 905 over Kingston Lake in Horry County, South Carolina. It was built in 1962, so it is 63 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 10,900 vehicles a day, roughly 6% of them trucks, projected to reach 15,260 by 2043. The structure is 270 ft (82.3 m) long and 55 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSc 905
CrossesKingston Lake
LocationCity of Conway
RouteState Highway 905
CountyHorry County
StateSouth Carolina
Coordinates33.83723, -79.04496
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+7 approach)
Design loadH 20
Structure length270 ft (82.3 m)
Longest span60 ft (18.3 m)
Deck width55 ft (16.9 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,900 (2023)
Projected traffic15,260 by 2043
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$336,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 905 over Kingston Lake built?

It was built in 1962, making it 63 years old in 2025.

What condition is Sc 905 over Kingston Lake in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does Sc 905 over Kingston Lake carry?

About 10,900 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Sc 905 over Kingston Lake?

The structure is 270 ft (82.3 m) long with a longest span of 60 ft (18.3 m) and a deck 55 ft wide.

Who owns Sc 905 over Kingston Lake?

It is owned by the State Highway Agency.