US Bridges

I-95 (sbl) over SR 21

Good

Chatham County, Georgia · Int I-95 & SR 21 · Structure no. 000000005101260

Built
1976
49 years old, rebuilt 1995
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
323 ft
4 main spans
Daily traffic
62,300
2024 count
Owner
State
State Highway Agency

About this bridge

I-95 (sbl) over SR 21 is a steel continuous stringer/multi-beam or girder carrying I-95 (sbl) over SR 21 in Chatham County, Georgia. It was built in 1976 and reconstructed in 1995, 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 62,300 vehicles a day, roughly 20% of them trucks, projected to reach 68,610 by 2031. The structure is 323 ft (98.5 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-95 (sbl)
CrossesSR 21
LocationInt I-95 & SR 21
RouteInterstate 95
StateGeorgia
Coordinates32.19142, -81.19477
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating32 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length323 ft (98.5 m)
Longest span109 ft (33.2 m)
Deck width79 ft (24.1 m)
Roadway width65 ft (19.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62,300 (2024)
Projected traffic68,610 by 2031
Trucks20%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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$2.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-95 (sbl) over SR 21 built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 1995.

What condition is I-95 (sbl) over SR 21 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 SR 21 carry?

About 62,300 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is I-95 (sbl) over SR 21?

The structure is 323 ft (98.5 m) long with a longest span of 109 ft (33.2 m) and a deck 79 ft wide.

Who owns I-95 (sbl) over SR 21?

It is owned by the State Highway Agency.