US Bridges

I-95 (sbl) over Walthour Swamp

Good

Chatham County, Georgia · 3.1 MI N of Pooler · Structure no. 000000005101180

Built
1976
49 years old, rebuilt 1996
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
35 ft
4 main spans
Daily traffic
64,500
2024 count
Owner
State
State Highway Agency

About this bridge

I-95 (sbl) over Walthour Swamp is a concrete culvert carrying I-95 (sbl) over Walthour Swamp in Chatham County, Georgia. It was built in 1976 and reconstructed in 1996, so it is 49 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 64,500 vehicles a day, roughly 1% of them trucks, projected to reach 93,585 by 2031. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-95 (sbl)
CrossesWalthour Swamp
Location3.1 MI N of Pooler
RouteInterstate 95
StateGeorgia
Coordinates32.1583, -81.2301
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length35 ft (10.7 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,500 (2024)
Projected traffic93,585 by 2031
Trucks1%
Lanes on structure3
Traffic directionOne-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$261,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I-95 (sbl) over Walthour Swamp built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 1996.

What condition is I-95 (sbl) over Walthour Swamp 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 July 2024.

How much traffic does I-95 (sbl) over Walthour Swamp carry?

About 64,500 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-95 (sbl) over Walthour Swamp?

The structure is 35 ft (10.7 m) long with a longest span of 8 ft (2.4 m).

Who owns I-95 (sbl) over Walthour Swamp?

It is owned by the State Highway Agency.