US Bridges

I-16 over I-75

Good

Bibb County, Georgia · North Macon · Structure no. 000000002151030

Built
2022
3 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
302 ft
2 main spans
Daily traffic
14,450
2024 count
Owner
State
State Highway Agency

About this bridge

I-16 over I-75 is a prestressed concrete stringer/multi-beam or girder carrying I-16 over I-75 in Bibb County, Georgia. It was built in 2022, so it is 3 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 14,450 vehicles a day, roughly 10% of them trucks, projected to reach 23,400 by 2032. The structure is 302 ft (92 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-16
CrossesI-75
LocationNorth Macon
RouteInterstate 16
StateGeorgia
Coordinates32.85397, -83.64091
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.9 US tons
Inventory rating35.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length302 ft (92 m)
Longest span181 ft (55.2 m)
Deck width45 ft (13.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,450 (2024)
Projected traffic23,400 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-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 proposedDeck replacement with only incidental widening
Estimated improvement cost$40.2 million (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-16 over I-75 built?

It was built in 2022, making it 3 years old in 2025.

What condition is I-16 over I-75 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 I-16 over I-75 carry?

About 14,450 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is I-16 over I-75?

The structure is 302 ft (92 m) long with a longest span of 181 ft (55.2 m) and a deck 45 ft wide.

Who owns I-16 over I-75?

It is owned by the State Highway Agency.