US Bridges

SR 17 over Mill Branch

Good

Warren County, Georgia · 13 MI SE of Warrenton · Structure no. 000000030100100

Built
1935
90 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
4,210
2024 count
Owner
State
State Highway Agency

About this bridge

SR 17 over Mill Branch is a concrete culvert carrying SR 17 over Mill Branch in Warren County, Georgia. It was built in 1935, so it is 90 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.

It carries about 4,210 vehicles a day, roughly 15% of them trucks, projected to reach 4,530 by 2031. The structure is 21 ft (6.4 m) long and 37 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSR 17
CrossesMill Branch
Location13 MI SE of Warrenton
RouteState Highway 17
StateGeorgia
Coordinates33.33374, -82.45565
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating36.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,210 (2024)
Projected traffic4,530 by 2031
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$123,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 17 over Mill Branch built?

It was built in 1935, making it 90 years old in 2025.

What condition is SR 17 over Mill Branch 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 February 2025.

How much traffic does SR 17 over Mill Branch carry?

About 4,210 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is SR 17 over Mill Branch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 37 ft wide.

Who owns SR 17 over Mill Branch?

It is owned by the State Highway Agency.