US Bridges

I-185 Sbl over I-85 (sr 403)

Good

Troup County, Georgia · 2 MI NE of Lagrange · Structure no. 000000028500850

Built
1977
48 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
547 ft
4 main spans
Daily traffic
43,300
2024 count
Owner
State
State Highway Agency

About this bridge

I-185 Sbl over I-85 (sr 403) is a steel stringer/multi-beam or girder carrying I-185 Sbl over I-85 (sr 403) 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 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 43,300 vehicles a day, roughly 1% of them trucks, projected to reach 23,550 by 2032. The structure is 547 ft (166.7 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesI-185 Sbl
CrossesI-85 (sr 403)
Location2 MI NE of Lagrange
RouteInterstate 185
CountyTroup County
StateGeorgia
Coordinates33.06161, -84.94516
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 evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating35.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length547 ft (166.7 m)
Longest span146 ft (44.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,300 (2024)
Projected traffic23,550 by 2032
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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$3.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-185 Sbl over I-85 (sr 403) built?

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

What condition is I-185 Sbl over I-85 (sr 403) 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-185 Sbl over I-85 (sr 403) carry?

About 43,300 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-185 Sbl over I-85 (sr 403)?

The structure is 547 ft (166.7 m) long with a longest span of 146 ft (44.5 m) and a deck 43 ft wide.

Who owns I-185 Sbl over I-85 (sr 403)?

It is owned by the State Highway Agency.