US Bridges

Knox Mill Road over Rocky Creek

FairPosted for load

Treutlen County, Georgia · 3.1 MI NW of Soperton · Structure no. 000000028350110

Built
1960
65 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
2 main spans
Daily traffic
190
2024 count
Owner
County
County Highway Agency

About this bridge

Knox Mill Road over Rocky Creek is a steel stringer/multi-beam or girder carrying Knox Mill Road over Rocky Creek in Treutlen County, Georgia. It was built in 1960, so it is 65 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 190 vehicles a day, roughly 1% of them trucks, projected to reach 735 by 2032. The structure is 32 ft (9.8 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesKnox Mill Road
CrossesRocky Creek
Location3.1 MI NW of Soperton
RouteCounty Highway 96
CountyTreutlen County
StateGeorgia
Coordinates32.39594, -82.64009
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.9 US tons
Inventory rating20.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length32 ft (9.8 m)
Longest span16 ft (4.9 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2024)
Projected traffic735 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$188,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Knox Mill Road over Rocky Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Knox Mill Road over Rocky Creek 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 July 2023.

How much traffic does Knox Mill Road over Rocky Creek carry?

About 190 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Knox Mill Road over Rocky Creek?

The structure is 32 ft (9.8 m) long with a longest span of 16 ft (4.9 m) and a deck 25 ft wide.

Who owns Knox Mill Road over Rocky Creek?

It is owned by the County Highway Agency.