US Bridges

Perimeter Road over Lamar Canal

Good

Chatham County, Georgia · Hunter Aaf · Structure no. DAPFORSTE008560

Built
2001
24 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
131 ft
1 main span
Daily traffic
1,000
2020 count
Owner
Federal
Army

About this bridge

Perimeter Road over Lamar Canal is a prestressed concrete stringer/multi-beam or girder carrying Perimeter Road over Lamar Canal in Chatham County, Georgia. It was built in 2001, so it is 24 years old, younger 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.

It carries about 1,000 vehicles a day, roughly 10% of them trucks, projected to reach 1,000 by 2046. The structure is 131 ft (39.8 m) long and 37 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesPerimeter Road
CrossesLamar Canal
LocationHunter Aaf
StateGeorgia
Coordinates32.01643, -81.1644
Functional classRural Minor 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating81.5 US tons
Inventory rating49.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length131 ft (39.8 m)
Longest span131 ft (39.8 m)
Deck width37 ft (11.2 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2020)
Projected traffic1,000 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerArmy
Maintained byArmy
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Perimeter Road over Lamar Canal built?

It was built in 2001, making it 24 years old in 2025.

What condition is Perimeter Road over Lamar Canal 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 October 2024.

How much traffic does Perimeter Road over Lamar Canal carry?

About 1,000 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Perimeter Road over Lamar Canal?

The structure is 131 ft (39.8 m) long with a longest span of 131 ft (39.8 m) and a deck 37 ft wide.

Who owns Perimeter Road over Lamar Canal?

It is owned by the Army.