US Bridges

US 78 Bus over Middle Oconee River

Good

Clarke County, Georgia · 3 MI W of Athens Town · Structure no. 000000005900230

Built
1962
63 years old, rebuilt 1999
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
270 ft
4 main spans
Daily traffic
40,100
2024 count
Owner
State
State Highway Agency

About this bridge

US 78 Bus over Middle Oconee River is a steel continuous stringer/multi-beam or girder carrying US 78 Bus over Middle Oconee River in Clarke County, Georgia. It was built in 1962 and reconstructed in 1999, so it is 63 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 40,100 vehicles a day, roughly 1% of them trucks, projected to reach 59,595 by 2031. The structure is 270 ft (82.3 m) long and 115 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 78 Bus
CrossesMiddle Oconee River
Location3 MI W of Athens Town
RouteU.S. Route 78
StateGeorgia
Coordinates33.94685, -83.42306
Functional classUrban Other Principal 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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.9 US tons
Inventory rating33 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length270 ft (82.3 m)
Longest span90 ft (27.4 m)
Deck width115 ft (35.1 m)
Roadway width112 ft (34.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,100 (2024)
Projected traffic59,595 by 2031
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$874,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 78 Bus over Middle Oconee River built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1999.

What condition is US 78 Bus over Middle Oconee River 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 US 78 Bus over Middle Oconee River carry?

About 40,100 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is US 78 Bus over Middle Oconee River?

The structure is 270 ft (82.3 m) long with a longest span of 90 ft (27.4 m) and a deck 115 ft wide.

Who owns US 78 Bus over Middle Oconee River?

It is owned by the State Highway Agency.