US Bridges

I-285R to I-675 SB over NS Railroad

Good

DeKalb County, Georgia · 7 MI S of Decatur · Structure no. 000000008902830

Built
1984
41 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
195 ft
3 main spans
Daily traffic
19,700
2024 count
Owner
State
State Highway Agency

About this bridge

I-285R to I-675 SB over NS Railroad is a prestressed concrete stringer/multi-beam or girder carrying I-285R to I-675 SB over NS Railroad in DeKalb County, Georgia. It was built in 1984, so it is 41 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 19,700 vehicles a day, roughly 1% of them trucks, projected to reach 17,445 by 2031. The structure is 195 ft (59.4 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesI-285R to I-675 SB
CrossesNS Railroad
Location7 MI S of Decatur
RouteInterstate 285
StateGeorgia
Coordinates33.67075, -84.33028
Functional classUrban 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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.9 US tons
Inventory rating30 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length195 ft (59.4 m)
Longest span66 ft (20.1 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,700 (2024)
Projected traffic17,445 by 2031
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-285R to I-675 SB over NS Railroad built?

It was built in 1984, making it 41 years old in 2025.

What condition is I-285R to I-675 SB over NS Railroad 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 2024.

How much traffic does I-285R to I-675 SB over NS Railroad carry?

About 19,700 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-285R to I-675 SB over NS Railroad?

The structure is 195 ft (59.4 m) long with a longest span of 66 ft (20.1 m) and a deck 45 ft wide.

Who owns I-285R to I-675 SB over NS Railroad?

It is owned by the State Highway Agency.