US Bridges

SR 11 - US 129 over Alligator Run

Fair

Lanier County, Georgia · 2.5 MI W of Lakeland · Structure no. 000000017300050

Built
1932
93 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
2,450
2024 count
Owner
State
State Highway Agency

About this bridge

SR 11 - US 129 over Alligator Run is a concrete culvert carrying SR 11 - US 129 over Alligator Run in Lanier County, Georgia. It was built in 1932, so it is 93 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 2,450 vehicles a day, roughly 14% of them trucks, projected to reach 2,970 by 2032. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesSR 11 - US 129
CrossesAlligator Run
Location2.5 MI W of Lakeland
RouteU.S. Route 129
CountyLanier County
StateGeorgia
Coordinates31.04663, -83.11243
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,450 (2024)
Projected traffic2,970 by 2032
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost$152,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 11 - US 129 over Alligator Run built?

It was built in 1932, making it 93 years old in 2025.

What condition is SR 11 - US 129 over Alligator Run 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 October 2023.

How much traffic does SR 11 - US 129 over Alligator Run carry?

About 2,450 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is SR 11 - US 129 over Alligator Run?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m).

Who owns SR 11 - US 129 over Alligator Run?

It is owned by the State Highway Agency.