US Bridges

US 29/ SR 407 Lawr over I-285 (sr 407)

Good

DeKalb County, Georgia · 1.5 MI NW of Clarkston · Structure no. 000000008951640

Built
2007
18 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
299 ft
2 main spans
Daily traffic
23,800
2024 count
Owner
State
State Highway Agency

About this bridge

US 29/ SR 407 Lawr over I-285 (sr 407) is a prestressed concrete stringer/multi-beam or girder carrying US 29/ SR 407 Lawr over I-285 (sr 407) in DeKalb County, Georgia. It was built in 2007, so it is 18 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 23,800 vehicles a day, roughly 1% of them trucks, projected to reach 35,445 by 2031. The structure is 299 ft (91.1 m) long and 135 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS 29/ SR 407 Lawr
CrossesI-285 (sr 407)
Location1.5 MI NW of Clarkston
RouteU.S. Route 29
CountyDeKalb County
StateGeorgia
Coordinates33.82721, -84.25249
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length299 ft (91.1 m)
Longest span162 ft (49.4 m)
Deck width135 ft (41 m)
Roadway width116 ft (35.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,800 (2024)
Projected traffic35,445 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$4.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 29/ SR 407 Lawr over I-285 (sr 407) built?

It was built in 2007, making it 18 years old in 2025.

What condition is US 29/ SR 407 Lawr 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 August 2024.

How much traffic does US 29/ SR 407 Lawr over I-285 (sr 407) carry?

About 23,800 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is US 29/ SR 407 Lawr over I-285 (sr 407)?

The structure is 299 ft (91.1 m) long with a longest span of 162 ft (49.4 m) and a deck 135 ft wide.

Who owns US 29/ SR 407 Lawr over I-285 (sr 407)?

It is owned by the State Highway Agency.