US Bridges

Zebulon Road over I-475(SR 408) @ 9.00

Good

Bibb County, Georgia · 4 MI W of Macon City Limi · Structure no. 000000002150520

Built
2006
19 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
345 ft
4 main spans
Daily traffic
28,300
2024 count
Owner
State
State Highway Agency

About this bridge

Zebulon Road over I-475(SR 408) @ 9.00 is a prestressed concrete stringer/multi-beam or girder carrying Zebulon Road over I-475(SR 408) @ 9.00 in Bibb County, Georgia. It was built in 2006, so it is 19 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 28,300 vehicles a day, roughly 1% of them trucks, projected to reach 38,760 by 2032. The structure is 345 ft (105.2 m) long and 98 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesZebulon Road
CrossesI-475(SR 408) @ 9.00
Location4 MI W of Macon City Limi
RouteCounty Highway 1077
StateGeorgia
Coordinates32.88001, -83.76909
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating20 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length345 ft (105.2 m)
Longest span115 ft (35.1 m)
Deck width98 ft (29.9 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,300 (2024)
Projected traffic38,760 by 2032
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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$3.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Zebulon Road over I-475(SR 408) @ 9.00 built?

It was built in 2006, making it 19 years old in 2025.

What condition is Zebulon Road over I-475(SR 408) @ 9.00 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 February 2024.

How much traffic does Zebulon Road over I-475(SR 408) @ 9.00 carry?

About 28,300 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Zebulon Road over I-475(SR 408) @ 9.00?

The structure is 345 ft (105.2 m) long with a longest span of 115 ft (35.1 m) and a deck 98 ft wide.

Who owns Zebulon Road over I-475(SR 408) @ 9.00?

It is owned by the State Highway Agency.