US Bridges

Mcmillan Road over Horse Creek

Good

Thomas County, Georgia · 2 MI SW of Ochlocknee · Structure no. 000000027550820

Built
1984
41 years old
Condition
Good
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
200 ft
10 main spans
Daily traffic
590
2024 count
Owner
County
County Highway Agency

About this bridge

Mcmillan Road over Horse Creek is a prestressed concrete channel beam carrying Mcmillan Road over Horse Creek in Thomas County, Georgia. It was built in 1984, so it is 41 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 590 vehicles a day, roughly 1% of them trucks, projected to reach 660 by 2031. The structure is 200 ft (61 m) long and 29 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMcmillan Road
CrossesHorse Creek
Location2 MI SW of Ochlocknee
RouteCounty Highway 159
StateGeorgia
Coordinates30.9471, -84.07139
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 rating38.9 US tons
Inventory rating22.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans10
Design loadH 15
Structure length200 ft (61 m)
Longest span20 ft (6.1 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic590 (2024)
Projected traffic660 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mcmillan Road over Horse Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Mcmillan Road over Horse 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 October 2024.

How much traffic does Mcmillan Road over Horse Creek carry?

About 590 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Mcmillan Road over Horse Creek?

The structure is 200 ft (61 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.

Who owns Mcmillan Road over Horse Creek?

It is owned by the County Highway Agency.