US Bridges

I-75 over I-16 Ramp/ NS R/R

Good

Bibb County, Georgia · In North Central Macon · Structure no. 000000002151020

Built
2022
3 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
430 ft
4 main spans
Daily traffic
27,850
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 over I-16 Ramp/ NS R/R is a prestressed concrete continuous stringer/multi-beam or girder carrying I-75 over I-16 Ramp/ NS R/R 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 27,850 vehicles a day, roughly 11% of them trucks, projected to reach 39,400 by 2032. The structure is 430 ft (131.1 m) long and 106 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-75
CrossesI-16 Ramp/ NS R/R
LocationIn North Central Macon
RouteInterstate 75
StateGeorgia
Coordinates32.85688, -83.641
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 evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating31 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length430 ft (131.1 m)
Longest span167 ft (50.9 m)
Deck width106 ft (32.2 m)
Roadway width103 ft (31.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,850 (2024)
Projected traffic39,400 by 2032
Trucks11%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
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-75 over I-16 Ramp/ NS R/R built?

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

What condition is I-75 over I-16 Ramp/ NS R/R 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-75 over I-16 Ramp/ NS R/R carry?

About 27,850 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is I-75 over I-16 Ramp/ NS R/R?

The structure is 430 ft (131.1 m) long with a longest span of 167 ft (50.9 m) and a deck 106 ft wide.

Who owns I-75 over I-16 Ramp/ NS R/R?

It is owned by the State Highway Agency.