US Bridges

Nankin Road over Withlacoochee River O/F

FairPosted for load

Lowndes County, Georgia · 12.5 MI W of Lake Park · Structure no. 000000018500660

Built
1955
70 years old
Condition
Fair
inspected November 2023
Type
Channel Beam
Prestressed Concrete
Length
121 ft
4 main spans
Daily traffic
1,153
2024 count
Owner
County
County Highway Agency

About this bridge

Nankin Road over Withlacoochee River O/F is a prestressed concrete channel beam carrying Nankin Road over Withlacoochee River O/F in Lowndes County, Georgia. It was built in 1955, so it is 70 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. Its operating status is: posted for load restriction.

It carries about 1,153 vehicles a day, roughly 1% of them trucks, projected to reach 1,485 by 2032. The structure is 121 ft (36.9 m) long and 26 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesNankin Road
CrossesWithlacoochee River O/F
Location12.5 MI W of Lake Park
RouteCounty Highway 951
CountyLowndes County
StateGeorgia
Coordinates30.67987, -83.38813
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.9 US tons
Inventory rating20.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadH 15
Structure length121 ft (36.9 m)
Longest span30 ft (9.1 m)
Deck width26 ft (8 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,153 (2024)
Projected traffic1,485 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed14.9 mi (24 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$709,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Nankin Road over Withlacoochee River O/F built?

It was built in 1955, making it 70 years old in 2025.

What condition is Nankin Road over Withlacoochee River O/F 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 November 2023.

How much traffic does Nankin Road over Withlacoochee River O/F carry?

About 1,153 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Nankin Road over Withlacoochee River O/F?

The structure is 121 ft (36.9 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Nankin Road over Withlacoochee River O/F?

It is owned by the County Highway Agency.