US Bridges

Redan Road over I-285 (sr 407)

Good

DeKalb County, Georgia · 5.5 MI E of Decatur · Structure no. 000000008901880

Built
1966
59 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
231 ft
4 main spans
Daily traffic
18,106
2024 count
Owner
State
State Highway Agency

About this bridge

Redan Road over I-285 (sr 407) is a steel continuous stringer/multi-beam or girder carrying Redan Road over I-285 (sr 407) in DeKalb County, Georgia. It was built in 1966, so it is 59 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 18,106 vehicles a day, roughly 1% of them trucks, projected to reach 24,105 by 2031. The structure is 231 ft (70.4 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRedan Road
CrossesI-285 (sr 407)
Location5.5 MI E of Decatur
RouteCity Street 9235
StateGeorgia
Coordinates33.76375, -84.23239
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.
Superstructure7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.9 US tons
Inventory rating35.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length231 ft (70.4 m)
Longest span69 ft (21 m)
Deck width38 ft (11.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,106 (2024)
Projected traffic24,105 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Redan Road over I-285 (sr 407) built?

It was built in 1966, making it 59 years old in 2025.

What condition is Redan Road 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 Redan Road over I-285 (sr 407) carry?

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

How long is Redan Road over I-285 (sr 407)?

The structure is 231 ft (70.4 m) long with a longest span of 69 ft (21 m) and a deck 38 ft wide.

Who owns Redan Road over I-285 (sr 407)?

It is owned by the State Highway Agency.