US Bridges

I-675 (sbl) over SR 138

Good

Clayton County, Georgia · 0.3 MI N of Henry CO Line · Structure no. 000000006301260

Built
1984
41 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
155 ft
1 main span
Daily traffic
90,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-675 (sbl) over SR 138 is a prestressed concrete continuous box beam or girders - single or spread carrying I-675 (sbl) over SR 138 in Clayton 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 90,000 vehicles a day, roughly 1% of them trucks, projected to reach 83,940 by 2032. The structure is 155 ft (47.2 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-675 (sbl)
CrossesSR 138
Location0.3 MI N of Henry CO Line
RouteInterstate 675
StateGeorgia
Coordinates33.55315, -84.26896
Functional classUrban Principal Arterial - Interstate

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.9 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length155 ft (47.2 m)
Longest span155 ft (47.2 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90,000 (2024)
Projected traffic83,940 by 2032
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-675 (sbl) over SR 138 built?

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

What condition is I-675 (sbl) over SR 138 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 April 2023.

How much traffic does I-675 (sbl) over SR 138 carry?

About 90,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-675 (sbl) over SR 138?

The structure is 155 ft (47.2 m) long with a longest span of 155 ft (47.2 m) and a deck 47 ft wide.

Who owns I-675 (sbl) over SR 138?

It is owned by the State Highway Agency.