US Bridges

Atlanta Road over CSX Railroad (340365U)

Good

Cobb County, Georgia · 4.8 MI SE of Smyrna · Structure no. 000000006700010

Built
1995
30 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
360 ft
3 main spans
Daily traffic
18,106
2024 count
Owner
County
County Highway Agency

About this bridge

Atlanta Road over CSX Railroad (340365U) is a prestressed concrete stringer/multi-beam or girder carrying Atlanta Road over CSX Railroad (340365U) in Cobb County, Georgia. It was built in 1995, so it is 30 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 18,106 vehicles a day, roughly 1% of them trucks, projected to reach 33,780 by 2032. The structure is 360 ft (109.7 m) long and 71 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesAtlanta Road
CrossesCSX Railroad (340365U)
Location4.8 MI SE of Smyrna
RouteCity Street 9003
CountyCobb County
StateGeorgia
Coordinates33.83401, -84.46582
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 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 rating57 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length360 ft (109.7 m)
Longest span128 ft (39 m)
Deck width71 ft (21.7 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,106 (2024)
Projected traffic33,780 by 2032
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Atlanta Road over CSX Railroad (340365U) built?

It was built in 1995, making it 30 years old in 2025.

What condition is Atlanta Road over CSX Railroad (340365U) 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 March 2023.

How much traffic does Atlanta Road over CSX Railroad (340365U) carry?

About 18,106 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Atlanta Road over CSX Railroad (340365U)?

The structure is 360 ft (109.7 m) long with a longest span of 128 ft (39 m) and a deck 71 ft wide.

Who owns Atlanta Road over CSX Railroad (340365U)?

It is owned by the County Highway Agency.