US Bridges

Ocean Highway US 1 over King Swamp

GoodPosted for load

McIntosh County, Georgia · 6 MI N of Darien · Structure no. 000000019100080

Built
1955
70 years old
Condition
Good
inspected April 2024
Type
Tee Beam
Concrete
Length
81 ft
3 main spans
Daily traffic
4,450
2024 count
Owner
State
State Highway Agency

About this bridge

Ocean Highway US 1 over King Swamp is a concrete tee beam carrying Ocean Highway US 1 over King Swamp in McIntosh County, Georgia. It was built in 1955, so it is 70 years old, older than the Georgia average of 47.5 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. Its operating status is: posted for load restriction.

It carries about 4,450 vehicles a day, roughly 8% of them trucks, projected to reach 4,980 by 2031. The structure is 81 ft (24.7 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesOcean Highway US 1
CrossesKing Swamp
Location6 MI N of Darien
RouteU.S. Route 17
StateGeorgia
Coordinates31.46369, -81.43627
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.9 US tons
Inventory rating21.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length81 ft (24.7 m)
Longest span27 ft (8.2 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,450 (2024)
Projected traffic4,980 by 2031
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$475,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ocean Highway US 1 over King Swamp built?

It was built in 1955, making it 70 years old in 2025.

What condition is Ocean Highway US 1 over King 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 April 2024.

How much traffic does Ocean Highway US 1 over King Swamp carry?

About 4,450 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Ocean Highway US 1 over King Swamp?

The structure is 81 ft (24.7 m) long with a longest span of 27 ft (8.2 m) and a deck 34 ft wide.

Who owns Ocean Highway US 1 over King Swamp?

It is owned by the State Highway Agency.