US Bridges

I-16 over Hardin Canal

Good

Chatham County, Georgia · 7 MI W of Savannah · Structure no. 000000005100840

Built
1966
59 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
62,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-16 over Hardin Canal is a concrete culvert carrying I-16 over Hardin Canal in Chatham County, Georgia. It was built in 1966, so it is 59 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 62,000 vehicles a day, roughly 1% of them trucks, projected to reach 83,580 by 2031. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesI-16
CrossesHardin Canal
Location7 MI W of Savannah
RouteInterstate 16
StateGeorgia
Coordinates32.0734, -81.23883
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 inspectionJune 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 spans2
Design loadHS 20 + Mod
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62,000 (2024)
Projected traffic83,580 by 2031
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$272,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I-16 over Hardin Canal built?

It was built in 1966, making it 59 years old in 2025.

What condition is I-16 over Hardin Canal 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 June 2024.

How much traffic does I-16 over Hardin Canal carry?

About 62,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-16 over Hardin Canal?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m).

Who owns I-16 over Hardin Canal?

It is owned by the State Highway Agency.