US Bridges

US 221 / SR 171 over Thigpen Mill CR

Good

Treutlen County, Georgia · 10 MI NE of Soperton · Structure no. 000000028350330

Built
1998
27 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Concrete
Length
89 ft
3 main spans
Daily traffic
560
2024 count
Owner
State
State Highway Agency

About this bridge

US 221 / SR 171 over Thigpen Mill CR is a concrete tee beam carrying US 221 / SR 171 over Thigpen Mill CR in Treutlen County, Georgia. It was built in 1998, so it is 27 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 560 vehicles a day, roughly 26% of them trucks, projected to reach 810 by 2032. The structure is 89 ft (27.1 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 221 / SR 171
CrossesThigpen Mill CR
Location10 MI NE of Soperton
RouteU.S. Route 221
StateGeorgia
Coordinates32.4942, -82.49277
Functional classRural Major 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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length89 ft (27.1 m)
Longest span30 ft (9.1 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2024)
Projected traffic810 by 2032
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$522,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 221 / SR 171 over Thigpen Mill CR built?

It was built in 1998, making it 27 years old in 2025.

What condition is US 221 / SR 171 over Thigpen Mill CR 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 2023.

How much traffic does US 221 / SR 171 over Thigpen Mill CR carry?

About 560 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is US 221 / SR 171 over Thigpen Mill CR?

The structure is 89 ft (27.1 m) long with a longest span of 30 ft (9.1 m) and a deck 41 ft wide.

Who owns US 221 / SR 171 over Thigpen Mill CR?

It is owned by the State Highway Agency.