US Bridges

I-85 (nbl) over SR 109

Fair

Troup County, Georgia · East Edge of Lagrange · Structure no. 000000028500660

Built
1977
48 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
257 ft
4 main spans
Daily traffic
40,500
2024 count
Owner
State
State Highway Agency

About this bridge

I-85 (nbl) over SR 109 is a steel continuous stringer/multi-beam or girder carrying I-85 (nbl) over SR 109 in Troup County, Georgia. It was built in 1977, so it is 48 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 5 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 40,500 vehicles a day, roughly 20% of them trucks, projected to reach 42,210 by 2032. The structure is 257 ft (78.3 m) long and 65 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-85 (nbl)
CrossesSR 109
LocationEast Edge of Lagrange
RouteInterstate 85
CountyTroup County
StateGeorgia
Coordinates33.04218, -84.96947
Functional classUrban Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.9 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length257 ft (78.3 m)
Longest span83 ft (25.3 m)
Deck width65 ft (19.8 m)
Roadway width61 ft (18.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,500 (2024)
Projected traffic42,210 by 2032
Trucks20%
Lanes on structure3
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$1.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-85 (nbl) over SR 109 built?

It was built in 1977, making it 48 years old in 2025.

What condition is I-85 (nbl) over SR 109 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 November 2023.

How much traffic does I-85 (nbl) over SR 109 carry?

About 40,500 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is I-85 (nbl) over SR 109?

The structure is 257 ft (78.3 m) long with a longest span of 83 ft (25.3 m) and a deck 65 ft wide.

Who owns I-85 (nbl) over SR 109?

It is owned by the State Highway Agency.