US Bridges

SR 307 over I-16 (sr 404)

Good

Chatham County, Georgia · Junction of I-16 · Structure no. 000000005151280

Built
2023
2 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
225 ft
2 main spans
Daily traffic
24,740
2024 count
Owner
State
State Highway Agency

About this bridge

SR 307 over I-16 (sr 404) is a prestressed concrete stringer/multi-beam or girder carrying SR 307 over I-16 (sr 404) in Chatham County, Georgia. It was built in 2023, so it is 2 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 24,740 vehicles a day, roughly 17% of them trucks, projected to reach 40,640 by 2042. The structure is 225 ft (68.6 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSR 307
CrossesI-16 (sr 404)
LocationJunction of I-16
RouteState Highway 307
CountyChatham County
StateGeorgia
Coordinates32.07014, -81.20233
Functional classUrban Other Principal Arterial

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.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating37.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length225 ft (68.6 m)
Longest span113 ft (34.3 m)
Deck width70 ft (21.3 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,740 (2024)
Projected traffic40,640 by 2042
Trucks17%
Lanes on structure5
Traffic directionTwo-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 proposedDeck replacement with only incidental widening
Estimated improvement cost$30 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 307 over I-16 (sr 404) built?

It was built in 2023, making it 2 years old in 2025.

What condition is SR 307 over I-16 (sr 404) 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 SR 307 over I-16 (sr 404) carry?

About 24,740 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is SR 307 over I-16 (sr 404)?

The structure is 225 ft (68.6 m) long with a longest span of 113 ft (34.3 m) and a deck 70 ft wide.

Who owns SR 307 over I-16 (sr 404)?

It is owned by the State Highway Agency.