US Bridges

FAU 5643 over Third Creek

Good

Knox County, Tennessee · W of I75-S of SR62-FRONTA · Structure no. 470E9900001

Built
1981
44 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
39 ft
3 main spans
Daily traffic
22,146
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 5643 over Third Creek is a concrete continuous culvert carrying FAU 5643 over Third Creek in Knox 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 22,146 vehicles a day, roughly 4% of them trucks, projected to reach 35,680 by 2040. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFAU 5643
CrossesThird Creek
LocationW of I75-S of SR62-FRONTA
RouteCity Street 5643
Coordinates35.96816, -83.98258
Functional classUrban Minor Arterial

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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,146 (2021)
Projected traffic35,680 by 2040
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 5643 over Third Creek built?

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

What condition is FAU 5643 over Third 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 May 2024.

How much traffic does FAU 5643 over Third Creek carry?

About 22,146 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAU 5643 over Third Creek?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.7 m).

Who owns FAU 5643 over Third Creek?

It is owned by the City or Municipal Highway Agency.