US Bridges

SW Bypass Nbl over Forest River Trib

Good

Chatham County, Georgia · 1.60 MI E of I-95 · Structure no. 000000005150580

Built
2001
24 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
400 ft
10 main spans
Daily traffic
5,230
2024 count
Owner
County
County Highway Agency

About this bridge

SW Bypass Nbl over Forest River Trib is a prestressed concrete stringer/multi-beam or girder carrying SW Bypass Nbl over Forest River Trib in Chatham County, Georgia. It was built in 2001, so it is 24 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 5,230 vehicles a day, roughly 1% of them trucks, projected to reach 26,175 by 2031. The structure is 400 ft (121.9 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSW Bypass Nbl
CrossesForest River Trib
Location1.60 MI E of I-95
RouteCounty Highway 975
StateGeorgia
Coordinates31.98552, -81.19915
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.9 US tons
Inventory rating37.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20 + Mod
Structure length400 ft (121.9 m)
Longest span40 ft (12.2 m)
Deck width37 ft (11.4 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,230 (2024)
Projected traffic26,175 by 2031
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SW Bypass Nbl over Forest River Trib built?

It was built in 2001, making it 24 years old in 2025.

What condition is SW Bypass Nbl over Forest River Trib 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 SW Bypass Nbl over Forest River Trib carry?

About 5,230 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SW Bypass Nbl over Forest River Trib?

The structure is 400 ft (121.9 m) long with a longest span of 40 ft (12.2 m) and a deck 37 ft wide.

Who owns SW Bypass Nbl over Forest River Trib?

It is owned by the County Highway Agency.