US Bridges

Nfa A123 over Grassy Creek

Fair

Greene County, Tennessee · 4 M NW of US11E-SR70 JCT · Structure no. 300A1230001

Built
1999
26 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
35 ft
2 main spans
Daily traffic
100
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A123 over Grassy Creek is a concrete continuous slab carrying Nfa A123 over Grassy Creek in Greene County, Tennessee. It was built in 1999, so it is 26 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 100 vehicles a day, roughly 2% of them trucks, projected to reach 160 by 2039. The structure is 35 ft (10.8 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa A123
CrossesGrassy Creek
Location4 M NW of US11E-SR70 JCT
RouteCounty Highway 123
CountyGreene County
StateTennessee
Coordinates36.20248, -82.91209
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length35 ft (10.8 m)
Longest span17 ft (5.2 m)
Deck width26 ft (7.8 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic160 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A123 over Grassy Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Nfa A123 over Grassy Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.

How much traffic does Nfa A123 over Grassy Creek carry?

About 100 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A123 over Grassy Creek?

The structure is 35 ft (10.8 m) long with a longest span of 17 ft (5.2 m) and a deck 26 ft wide.

Who owns Nfa A123 over Grassy Creek?

It is owned by the County Highway Agency.