US Bridges

N. Druid Hills Rd. over I-85- I-85 Ramp

Good

DeKalb County, Georgia · 4.8 MI N of Decatur · Structure no. 000000008900300

Built
1981
44 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
360 ft
4 main spans
Daily traffic
32,922
2024 count
Owner
State
State Highway Agency

About this bridge

N. Druid Hills Rd. over I-85- I-85 Ramp is a steel stringer/multi-beam or girder carrying N. Druid Hills Rd. over I-85- I-85 Ramp in DeKalb County, Georgia. It was built in 1981, so it is 44 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 32,922 vehicles a day, roughly 1% of them trucks, projected to reach 75,855 by 2031. The structure is 360 ft (109.7 m) long and 120 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesN. Druid Hills Rd.
CrossesI-85- I-85 Ramp
Location4.8 MI N of Decatur
RouteState Highway 42
CountyDeKalb County
StateGeorgia
Coordinates33.8321, -84.33532
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 evaluation6: Equal to 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 rating49.9 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length360 ft (109.7 m)
Longest span111 ft (33.8 m)
Deck width120 ft (36.7 m)
Roadway width104 ft (31.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,922 (2024)
Projected traffic75,855 by 2031
Trucks1%
Lanes on structure8
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$5.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was N. Druid Hills Rd. over I-85- I-85 Ramp built?

It was built in 1981, making it 44 years old in 2025.

What condition is N. Druid Hills Rd. over I-85- I-85 Ramp 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 N. Druid Hills Rd. over I-85- I-85 Ramp carry?

About 32,922 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is N. Druid Hills Rd. over I-85- I-85 Ramp?

The structure is 360 ft (109.7 m) long with a longest span of 111 ft (33.8 m) and a deck 120 ft wide.

Who owns N. Druid Hills Rd. over I-85- I-85 Ramp?

It is owned by the State Highway Agency.