US Bridges

Colwell Road over I-75

Fair

Butts County, Georgia · 8 MI SW of Jackson · Structure no. 000000003500140

Built
1968
57 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
275 ft
4 main spans
Daily traffic
510
2024 count
Owner
State
State Highway Agency

About this bridge

Colwell Road over I-75 is a steel continuous stringer/multi-beam or girder carrying Colwell Road over I-75 in Butts County, Georgia. It was built in 1968, so it is 57 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 510 vehicles a day, roughly 1% of them trucks, projected to reach 900 by 2031. The structure is 275 ft (83.7 m) long and 31 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesColwell Road
CrossesI-75
Location8 MI SW of Jackson
RouteCounty Highway 299
StateGeorgia
Coordinates33.22611, -84.07564
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
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
Approach roadway alignment7: Better than present minimum criteria
Operating rating34.9 US tons
Inventory rating20.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length275 ft (83.7 m)
Longest span75 ft (22.9 m)
Deck width31 ft (9.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic510 (2024)
Projected traffic900 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 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$1.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Colwell Road over I-75 built?

It was built in 1968, making it 57 years old in 2025.

What condition is Colwell Road over I-75 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 August 2023.

How much traffic does Colwell Road over I-75 carry?

About 510 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Colwell Road over I-75?

The structure is 275 ft (83.7 m) long with a longest span of 75 ft (22.9 m) and a deck 31 ft wide.

Who owns Colwell Road over I-75?

It is owned by the State Highway Agency.