US Bridges

SR 74 over I-75 (EXIT163)@162.91

Good

Bibb County, Georgia · In SE Macon · Structure no. 000000002101740

Built
1970
55 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
247 ft
4 main spans
Daily traffic
22,000
2024 count
Owner
State
State Highway Agency

About this bridge

SR 74 over I-75 (EXIT163)@162.91 is a steel continuous stringer/multi-beam or girder carrying SR 74 over I-75 (EXIT163)@162.91 in Bibb County, Georgia. It was built in 1970, so it is 55 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 22,000 vehicles a day, roughly 1% of them trucks, projected to reach 32,805 by 2032. The structure is 247 ft (75.3 m) long and 93 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 74
CrossesI-75 (EXIT163)@162.91
LocationIn SE Macon
RouteState Highway 74
CountyBibb County
StateGeorgia
Coordinates32.82579, -83.65712
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 inspectionApril 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating25.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length247 ft (75.3 m)
Longest span79 ft (24.1 m)
Deck width93 ft (28.3 m)
Roadway width73 ft (22.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,000 (2024)
Projected traffic32,805 by 2032
Trucks1%
Lanes on structure5
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$2.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 74 over I-75 (EXIT163)@162.91 built?

It was built in 1970, making it 55 years old in 2025.

What condition is SR 74 over I-75 (EXIT163)@162.91 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 2024.

How much traffic does SR 74 over I-75 (EXIT163)@162.91 carry?

About 22,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 74 over I-75 (EXIT163)@162.91?

The structure is 247 ft (75.3 m) long with a longest span of 79 ft (24.1 m) and a deck 93 ft wide.

Who owns SR 74 over I-75 (EXIT163)@162.91?

It is owned by the State Highway Agency.