US Bridges

Memorial Drive over I-285 (sr 407)

Good

DeKalb County, Georgia · 5 MI E of Decatur · Structure no. 000000008951620

Built
2008
17 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
384 ft
4 main spans
Daily traffic
40,300
2024 count
Owner
State
State Highway Agency

About this bridge

Memorial Drive over I-285 (sr 407) is a prestressed concrete stringer/multi-beam or girder carrying Memorial Drive over I-285 (sr 407) in DeKalb County, Georgia. It was built in 2008, so it is 17 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 40,300 vehicles a day, roughly 2% of them trucks, projected to reach 60,810 by 2031. The structure is 384 ft (117 m) long and 158 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMemorial Drive
CrossesI-285 (sr 407)
Location5 MI E of Decatur
RouteState Highway 10
CountyDeKalb County
StateGeorgia
Coordinates33.77819, -84.24128
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.9 US tons
Inventory rating35.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length384 ft (117 m)
Longest span120 ft (36.6 m)
Deck width158 ft (48.3 m)
Roadway width132 ft (40.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,300 (2024)
Projected traffic60,810 by 2031
Trucks2%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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$7.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Memorial Drive over I-285 (sr 407) built?

It was built in 2008, making it 17 years old in 2025.

What condition is Memorial Drive over I-285 (sr 407) 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 June 2024.

How much traffic does Memorial Drive over I-285 (sr 407) carry?

About 40,300 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Memorial Drive over I-285 (sr 407)?

The structure is 384 ft (117 m) long with a longest span of 120 ft (36.6 m) and a deck 158 ft wide.

Who owns Memorial Drive over I-285 (sr 407)?

It is owned by the State Highway Agency.