US Bridges

Post Road over Dog River

Good

Douglas County, Georgia · 5 MI S of Villa Rica · Structure no. 000000009750730

Built
2021
4 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
180 ft
3 main spans
Daily traffic
4,140
2024 count
Owner
County
County Highway Agency

About this bridge

Post Road over Dog River is a prestressed concrete stringer/multi-beam or girder carrying Post Road over Dog River in Douglas County, Georgia. It was built in 2021, so it is 4 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 4,140 vehicles a day, roughly 1% of them trucks, projected to reach 5,150 by 2041. The structure is 180 ft (54.9 m) long and 41 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesPost Road
CrossesDog River
Location5 MI S of Villa Rica
RouteCounty Highway 808
StateGeorgia
Coordinates33.66029, -84.86141
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
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 rating91.9 US tons
Inventory rating37.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span120 ft (36.6 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,140 (2024)
Projected traffic5,150 by 2041
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 proposedDeck replacement with only incidental widening
Estimated improvement cost$24 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Post Road over Dog River built?

It was built in 2021, making it 4 years old in 2025.

What condition is Post Road over Dog River 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 November 2023.

How much traffic does Post Road over Dog River carry?

About 4,140 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Post Road over Dog River?

The structure is 180 ft (54.9 m) long with a longest span of 120 ft (36.6 m) and a deck 41 ft wide.

Who owns Post Road over Dog River?

It is owned by the County Highway Agency.