US Bridges

I-285R to I-675 SB over SR 42 Ramp to I-285 EB

Good

DeKalb County, Georgia · 7 MI S of Decatur · Structure no. 000000008902850

Built
1984
41 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
258 ft
2 main spans
Daily traffic
12,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-285R to I-675 SB over SR 42 Ramp to I-285 EB is a prestressed concrete stringer/multi-beam or girder carrying I-285R to I-675 SB over SR 42 Ramp to I-285 EB 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 12,000 vehicles a day, roughly 1% of them trucks, projected to reach 17,445 by 2031. The structure is 258 ft (78.6 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
CrossesSR 42 Ramp to I-285 EB
Location7 MI S of Decatur
RouteInterstate 285
StateGeorgia
Coordinates33.66954, -84.33482
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31 US tons
Inventory rating18 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length258 ft (78.6 m)
Longest span129 ft (39.3 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2024)
Projected traffic17,445 by 2031
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 SR 42 Ramp to I-285 EB built?

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

What condition is I-285R to I-675 SB over SR 42 Ramp to I-285 EB 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 SR 42 Ramp to I-285 EB carry?

About 12,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-285R to I-675 SB over SR 42 Ramp to I-285 EB?

The structure is 258 ft (78.6 m) long with a longest span of 129 ft (39.3 m) and a deck 45 ft wide.

Who owns I-285R to I-675 SB over SR 42 Ramp to I-285 EB?

It is owned by the State Highway Agency.