US Bridges

Nfa A120 over Oostanula Creek

Good

McMinn County, Tennessee · 5MI East of SR2 · Structure no. 540A1200001

Built
1981
44 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
260
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A120 over Oostanula Creek is a concrete continuous culvert carrying Nfa A120 over Oostanula Creek in McMinn County, Tennessee. It was built in 1981, so it is 44 years old, younger than the Tennessee average of 47.4 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 260 vehicles a day, roughly 2% of them trucks, projected to reach 416 by 2041. The structure is 29 ft (8.8 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A120
CrossesOostanula Creek
Location5MI East of SR2
RouteCounty Highway 120
CountyMcMinn County
StateTennessee
Coordinates35.50428, -84.49602
Functional classRural Local

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 inspectionAugust 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length29 ft (8.8 m)
Longest span12 ft (3.7 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2020)
Projected traffic416 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 A120 over Oostanula Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Nfa A120 over Oostanula Creek 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 August 2023.

How much traffic does Nfa A120 over Oostanula Creek carry?

About 260 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A120 over Oostanula Creek?

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.7 m) and a deck 27 ft wide.

Who owns Nfa A120 over Oostanula Creek?

It is owned by the County Highway Agency.