US Bridges

Thompson Mill RD over Little Mulberry River

Fair

Barrow County, Georgia · 6 MI NW of Winder · Structure no. 000000001300140

Built
1971
54 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
186 ft
3 main spans
Daily traffic
18,500
2024 count
Owner
State
State Highway Agency

About this bridge

Thompson Mill RD over Little Mulberry River is a steel stringer/multi-beam or girder carrying Thompson Mill RD over Little Mulberry River in Barrow 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 18,500 vehicles a day, roughly 1% of them trucks, projected to reach 18,105 by 2032. The structure is 186 ft (56.7 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesThompson Mill RD
CrossesLittle Mulberry River
Location6 MI NW of Winder
RouteState Highway 211
StateGeorgia
Coordinates34.0625, -83.78349
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.9 US tons
Inventory rating46 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length186 ft (56.7 m)
Longest span72 ft (21.9 m)
Deck width33 ft (10 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,500 (2024)
Projected traffic18,105 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Thompson Mill RD over Little Mulberry River built?

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

What condition is Thompson Mill RD over Little Mulberry River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.

How much traffic does Thompson Mill RD over Little Mulberry River carry?

About 18,500 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Thompson Mill RD over Little Mulberry River?

The structure is 186 ft (56.7 m) long with a longest span of 72 ft (21.9 m) and a deck 33 ft wide.

Who owns Thompson Mill RD over Little Mulberry River?

It is owned by the State Highway Agency.