US Bridges

I-75 over Withlacoochee River

Good

Lowndes County, Georgia · App .5 MI N of Valdosta · Structure no. 000000018500490

Built
1961
64 years old, rebuilt 2004
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
508 ft
14 main spans
Daily traffic
61,900
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 over Withlacoochee River is a prestressed concrete stringer/multi-beam or girder carrying I-75 over Withlacoochee River in Lowndes County, Georgia. It was built in 1961 and reconstructed in 2004, so it is 64 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 61,900 vehicles a day, roughly 1% of them trucks, projected to reach 63,630 by 2032. The structure is 508 ft (154.8 m) long and 132 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-75
CrossesWithlacoochee River
LocationApp .5 MI N of Valdosta
RouteInterstate 75
StateGeorgia
Coordinates30.85484, -83.33438
Functional classUrban Principal Arterial - Interstate

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.
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 within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans14
Design loadHS 20 + Mod
Structure length508 ft (154.8 m)
Longest span50 ft (15.2 m)
Deck width132 ft (40.2 m)
Roadway width127 ft (38.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61,900 (2024)
Projected traffic63,630 by 2032
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$6.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 over Withlacoochee River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2004.

What condition is I-75 over Withlacoochee 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 I-75 over Withlacoochee River carry?

About 61,900 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-75 over Withlacoochee River?

The structure is 508 ft (154.8 m) long with a longest span of 50 ft (15.2 m) and a deck 132 ft wide.

Who owns I-75 over Withlacoochee River?

It is owned by the State Highway Agency.