US Bridges

I-85 (sbl) over CR 99 Cannonville Road

Good

Troup County, Georgia · 3 MI SW of Lagrange · Structure no. 000000028500570

Built
1966
59 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
141 ft
3 main spans
Daily traffic
45,400
2024 count
Owner
State
State Highway Agency

About this bridge

I-85 (sbl) over CR 99 Cannonville Road is a steel stringer/multi-beam or girder carrying I-85 (sbl) over CR 99 Cannonville Road in Troup County, Georgia. It was built in 1966, so it is 59 years old, older 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 45,400 vehicles a day, roughly 19% of them trucks, projected to reach 47,670 by 2032. The structure is 141 ft (43 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-85 (sbl)
CrossesCR 99 Cannonville Road
Location3 MI SW of Lagrange
RouteInterstate 85
CountyTroup County
StateGeorgia
Coordinates32.96058, -85.08345
Functional classRural Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.9 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length141 ft (43 m)
Longest span49 ft (14.9 m)
Deck width40 ft (12.3 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,400 (2024)
Projected traffic47,670 by 2032
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$826,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-85 (sbl) over CR 99 Cannonville Road built?

It was built in 1966, making it 59 years old in 2025.

What condition is I-85 (sbl) over CR 99 Cannonville Road 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 2023.

How much traffic does I-85 (sbl) over CR 99 Cannonville Road carry?

About 45,400 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is I-85 (sbl) over CR 99 Cannonville Road?

The structure is 141 ft (43 m) long with a longest span of 49 ft (14.9 m) and a deck 40 ft wide.

Who owns I-85 (sbl) over CR 99 Cannonville Road?

It is owned by the State Highway Agency.