US Bridges

SR 166 over Big Indian Creek

GoodPosted for load

Carroll County, Georgia · 1.9 MI W of Bowdon · Structure no. 000000004500430

Built
1971
54 years old
Condition
Good
inspected July 2024
Type
Tee Beam
Concrete
Length
360 ft
9 main spans
Daily traffic
4,080
2024 count
Owner
State
State Highway Agency

About this bridge

SR 166 over Big Indian Creek is a concrete tee beam carrying SR 166 over Big Indian Creek in Carroll County, Georgia. It was built in 1971, so it is 54 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. Its operating status is: posted for load restriction.

It carries about 4,080 vehicles a day, roughly 1% of them trucks, projected to reach 20,760 by 2031. The structure is 360 ft (109.7 m) long and 50 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesSR 166
CrossesBig Indian Creek
Location1.9 MI W of Bowdon
RouteState Highway 166
StateGeorgia
Coordinates33.54446, -85.2853
Functional classRural 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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31 US tons
Inventory rating18 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20 + Mod
Structure length360 ft (109.7 m)
Longest span40 ft (12.2 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,080 (2024)
Projected traffic20,760 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 proposedNone recorded
Estimated improvement cost$2.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 166 over Big Indian Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is SR 166 over Big Indian Creek 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 July 2024.

How much traffic does SR 166 over Big Indian Creek carry?

About 4,080 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 166 over Big Indian Creek?

The structure is 360 ft (109.7 m) long with a longest span of 40 ft (12.2 m) and a deck 50 ft wide.

Who owns SR 166 over Big Indian Creek?

It is owned by the State Highway Agency.