US Bridges

US 29 Conn. over I-185 Sbl (sr 411)

Good

Troup County, Georgia · 5 MI NE of Lagrange · Structure no. 000000028500260

Built
1977
48 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
477 ft
3 main spans
Daily traffic
380
2024 count
Owner
State
State Highway Agency

About this bridge

US 29 Conn. over I-185 Sbl (sr 411) is a prestressed concrete continuous box beam or girders - single or spread carrying US 29 Conn. over I-185 Sbl (sr 411) 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 380 vehicles a day, roughly 1% of them trucks, projected to reach 735 by 2032. The structure is 477 ft (145.4 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 29 Conn.
CrossesI-185 Sbl (sr 411)
Location5 MI NE of Lagrange
RouteU.S. Route 29
StateGeorgia
Coordinates33.0519, -84.94813
Functional classRural Local

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating35.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length477 ft (145.4 m)
Longest span201 ft (61.3 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic380 (2024)
Projected traffic735 by 2032
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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$2.8 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 29 Conn. over I-185 Sbl (sr 411) built?

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

What condition is US 29 Conn. over I-185 Sbl (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 November 2023.

How much traffic does US 29 Conn. over I-185 Sbl (sr 411) carry?

About 380 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is US 29 Conn. over I-185 Sbl (sr 411)?

The structure is 477 ft (145.4 m) long with a longest span of 201 ft (61.3 m) and a deck 44 ft wide.

Who owns US 29 Conn. over I-185 Sbl (sr 411)?

It is owned by the State Highway Agency.