US Bridges

Union Grove Road over I-75

Good

Gordon County, Georgia · 4 MI S of Calhoun · Structure no. 000000012951010

Built
2014
11 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
188 ft
2 main spans
Daily traffic
14,104
2024 count
Owner
State
State Highway Agency

About this bridge

Union Grove Road over I-75 is a prestressed concrete stringer/multi-beam or girder carrying Union Grove Road over I-75 in Gordon County, Georgia. It was built in 2014, so it is 11 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 14,104 vehicles a day, roughly 1% of them trucks, projected to reach 1,470 by 2030. The structure is 188 ft (57.3 m) long and 85 ft wide.

CarriesUnion Grove Road
CrossesI-75
Location4 MI S of Calhoun
RouteCity Street 5607
StateGeorgia
Coordinates34.44211, -84.91998
Functional classUrban Collector

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 inspectionMay 2023
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 rating89.9 US tons
Inventory rating48.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length188 ft (57.3 m)
Longest span94 ft (28.7 m)
Deck width85 ft (26 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,104 (2024)
Projected traffic1,470 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$25 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Union Grove Road over I-75 built?

It was built in 2014, making it 11 years old in 2025.

What condition is Union Grove Road 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 May 2023.

How much traffic does Union Grove Road over I-75 carry?

About 14,104 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Union Grove Road over I-75?

The structure is 188 ft (57.3 m) long with a longest span of 94 ft (28.7 m) and a deck 85 ft wide.

Who owns Union Grove Road over I-75?

It is owned by the State Highway Agency.