US Bridges

Colesburg-Thompkin over Walker Swamp

Fair

Camden County, Georgia · 3 MI SW of Woodbine · Structure no. 000000003950320

Built
1950
75 years old
Condition
Fair
inspected June 2023
Type
Channel Beam
Prestressed Concrete
Length
40 ft
2 main spans
Daily traffic
410
2024 count
Owner
County
County Highway Agency

About this bridge

Colesburg-Thompkin over Walker Swamp is a prestressed concrete channel beam carrying Colesburg-Thompkin over Walker Swamp in Camden County, Georgia. It was built in 1950, so it is 75 years old, older than the Georgia average of 47.5 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 410 vehicles a day, roughly 1% of them trucks, projected to reach 735 by 2032. The structure is 40 ft (12.2 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesColesburg-Thompkin
CrossesWalker Swamp
Location3 MI SW of Woodbine
RouteCounty Highway 137
CountyCamden County
StateGeorgia
Coordinates30.92199, -81.73534
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating25.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadH 15
Structure length40 ft (12.2 m)
Longest span20 ft (6.1 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2024)
Projected traffic735 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$234,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Colesburg-Thompkin over Walker Swamp built?

It was built in 1950, making it 75 years old in 2025.

What condition is Colesburg-Thompkin over Walker Swamp 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 June 2023.

How much traffic does Colesburg-Thompkin over Walker Swamp carry?

About 410 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Colesburg-Thompkin over Walker Swamp?

The structure is 40 ft (12.2 m) long with a longest span of 20 ft (6.1 m) and a deck 25 ft wide.

Who owns Colesburg-Thompkin over Walker Swamp?

It is owned by the County Highway Agency.