US Bridges

I-95 Sbl over South Altamaha River

Good

Glynn County, Georgia · Mcintoch-Glynn CO Line · Structure no. 000000012750090

Built
1997
28 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,784 ft
16 main spans
Daily traffic
57,400
2024 count
Owner
State
State Highway Agency

About this bridge

I-95 Sbl over South Altamaha River is a prestressed concrete stringer/multi-beam or girder carrying I-95 Sbl over South Altamaha River in Glynn County, Georgia. It was built in 1997, so it is 28 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 57,400 vehicles a day, roughly 1% of them trucks, projected to reach 66,960 by 2031. The structure is 1,784 ft (543.8 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-95 Sbl
CrossesSouth Altamaha River
LocationMcintoch-Glynn CO Line
RouteInterstate 95
StateGeorgia
Coordinates31.33688, -81.46689
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans16
Design loadHS 20 + Mod
Structure length1,784 ft (543.8 m)
Longest span130 ft (39.6 m)
Deck width79 ft (24.2 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57,400 (2024)
Projected traffic66,960 by 2031
Trucks1%
Lanes on structure4
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$16.2 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was I-95 Sbl over South Altamaha River built?

It was built in 1997, making it 28 years old in 2025.

What condition is I-95 Sbl over South Altamaha 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 October 2024.

How much traffic does I-95 Sbl over South Altamaha River carry?

About 57,400 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-95 Sbl over South Altamaha River?

The structure is 1,784 ft (543.8 m) long with a longest span of 130 ft (39.6 m) and a deck 79 ft wide.

Who owns I-95 Sbl over South Altamaha River?

It is owned by the State Highway Agency.