US Bridges

Nfa 2329 (sa 5430) over Oostanaula Creek

Fair

McMinn County, Tennessee · 1MI West of Monroe Co. · Structure no. 540Z0040001

Built
1960
65 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
21 ft
1 main span
Daily traffic
502
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2329 (sa 5430) over Oostanaula Creek is a steel stringer/multi-beam or girder carrying Nfa 2329 (sa 5430) over Oostanaula Creek in McMinn County, Tennessee. It was built in 1960, so it is 65 years old, older 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 5 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 502 vehicles a day, roughly 3% of them trucks, projected to reach 803 by 2042. The structure is 21 ft (6.4 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 2329 (sa 5430)
CrossesOostanaula Creek
Location1MI West of Monroe Co.
RouteCounty Highway 2329
CountyMcMinn County
StateTennessee
Coordinates35.5116, -84.48707
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic502 (2021)
Projected traffic803 by 2042
Trucks3%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$88,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2329 (sa 5430) over Oostanaula Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Nfa 2329 (sa 5430) over Oostanaula 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 July 2023.

How much traffic does Nfa 2329 (sa 5430) over Oostanaula Creek carry?

About 502 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2329 (sa 5430) over Oostanaula Creek?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 24 ft wide.

Who owns Nfa 2329 (sa 5430) over Oostanaula Creek?

It is owned by the County Highway Agency.