US Bridges

Oak Grove Road over I-185 (sr 411)

Good

Troup County, Georgia · 10.1 MI SE of Lagrange · Structure no. 000000028500390

Built
1978
47 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
400 ft
2 main spans
Daily traffic
519
2024 count
Owner
State
State Highway Agency

About this bridge

Oak Grove Road over I-185 (sr 411) is a prestressed concrete continuous box beam or girders - single or spread carrying Oak Grove Road over I-185 (sr 411) in Troup County, Georgia. It was built in 1978, so it is 47 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 519 vehicles a day, roughly 5% of them trucks, projected to reach 735 by 2032. The structure is 400 ft (121.9 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesOak Grove Road
CrossesI-185 (sr 411)
Location10.1 MI SE of Lagrange
RouteCounty Highway 183
CountyTroup County
StateGeorgia
Coordinates32.90897, -84.94746
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating26.9 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length400 ft (121.9 m)
Longest span209 ft (63.7 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic519 (2024)
Projected traffic735 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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$2.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Oak Grove Road over I-185 (sr 411) built?

It was built in 1978, making it 47 years old in 2025.

What condition is Oak Grove Road over I-185 (sr 411) 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 Oak Grove Road over I-185 (sr 411) carry?

About 519 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Oak Grove Road over I-185 (sr 411)?

The structure is 400 ft (121.9 m) long with a longest span of 209 ft (63.7 m) and a deck 32 ft wide.

Who owns Oak Grove Road over I-185 (sr 411)?

It is owned by the State Highway Agency.