US Bridges

SR 15ALT-US129 (sb over CSX Railroad

Fair

Clarke County, Georgia · 2.5 MI NW of Athens Sq · Structure no. 000000005900320

Built
1960
65 years old, rebuilt 1997
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
132 ft
3 main spans
Daily traffic
21,000
2024 count
Owner
State
State Highway Agency

About this bridge

SR 15ALT-US129 (sb over CSX Railroad is a concrete tee beam carrying SR 15ALT-US129 (sb over CSX Railroad in Clarke County, Georgia. It was built in 1960 and reconstructed in 1997, so it is 65 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 21,000 vehicles a day, roughly 1% of them trucks, projected to reach 32,655 by 2031. The structure is 132 ft (40.2 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 15ALT-US129 (sb
CrossesCSX Railroad
Location2.5 MI NW of Athens Sq
RouteU.S. Route 129
CountyClarke County
StateGeorgia
Coordinates33.97281, -83.41307
Functional classUrban Other Principal 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating35.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length132 ft (40.2 m)
Longest span44 ft (13.4 m)
Deck width54 ft (16.5 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,000 (2024)
Projected traffic32,655 by 2031
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 15ALT-US129 (sb over CSX Railroad built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1997.

What condition is SR 15ALT-US129 (sb over CSX Railroad 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 April 2023.

How much traffic does SR 15ALT-US129 (sb over CSX Railroad carry?

About 21,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 15ALT-US129 (sb over CSX Railroad?

The structure is 132 ft (40.2 m) long with a longest span of 44 ft (13.4 m) and a deck 54 ft wide.

Who owns SR 15ALT-US129 (sb over CSX Railroad?

It is owned by the State Highway Agency.