US Bridges

W Thomson Bypass over CR 166 & Mattox Creek

Good

McDuffie County, Georgia · 3 MI W of Thomson · Structure no. 000000018950170

Built
2000
25 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
310 ft
4 main spans
Daily traffic
610
2024 count
Owner
County
County Highway Agency

About this bridge

W Thomson Bypass over CR 166 & Mattox Creek is a prestressed concrete stringer/multi-beam or girder carrying W Thomson Bypass over CR 166 & Mattox Creek in McDuffie County, Georgia. It was built in 2000, so it is 25 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 610 vehicles a day, roughly 1% of them trucks, projected to reach 375 by 2031. The structure is 310 ft (94.5 m) long and 43 ft wide.

CarriesW Thomson Bypass
CrossesCR 166 & Mattox Creek
Location3 MI W of Thomson
RouteCounty Highway 445
StateGeorgia
Coordinates33.47476, -82.55149
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating35.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length310 ft (94.5 m)
Longest span86 ft (26.2 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic610 (2024)
Projected traffic375 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1.8 million
NavigationNo navigation control on waterway

Frequently asked questions

When was W Thomson Bypass over CR 166 & Mattox Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is W Thomson Bypass over CR 166 & Mattox 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 January 2025.

How much traffic does W Thomson Bypass over CR 166 & Mattox Creek carry?

About 610 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is W Thomson Bypass over CR 166 & Mattox Creek?

The structure is 310 ft (94.5 m) long with a longest span of 86 ft (26.2 m) and a deck 43 ft wide.

Who owns W Thomson Bypass over CR 166 & Mattox Creek?

It is owned by the County Highway Agency.