US Bridges

Nfa 02406 over Fort Loudon Lake

GoodPosted for load

Blount County, Tennessee · 0.1 MI W of SR-334 · Structure no. 05024060001

Built
1942
83 years old
Condition
Good
inspected November 2023
Type
Girder and Floorbeam System
Concrete
Length
80 ft
1 main span
Daily traffic
2,148
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa 02406 over Fort Loudon Lake is a concrete girder and floorbeam system carrying Nfa 02406 over Fort Loudon Lake in Blount County, Tennessee. It was built in 1942, so it is 83 years old, older 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. Its operating status is: posted for load restriction.

It carries about 2,148 vehicles a day, roughly 3% of them trucks, projected to reach 3,082 by 2042. The structure is 80 ft (24.4 m) long and 21 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa 02406
CrossesFort Loudon Lake
Location0.1 MI W of SR-334
RouteCity Street 2406
Coordinates35.80795, -84.02744
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19 US tons
Inventory rating14.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length80 ft (24.4 m)
Longest span48 ft (14.6 m)
Deck width21 ft (6.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,148 (2021)
Projected traffic3,082 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$421,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 02406 over Fort Loudon Lake built?

It was built in 1942, making it 83 years old in 2025.

What condition is Nfa 02406 over Fort Loudon Lake 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 November 2023.

How much traffic does Nfa 02406 over Fort Loudon Lake carry?

About 2,148 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 02406 over Fort Loudon Lake?

The structure is 80 ft (24.4 m) long with a longest span of 48 ft (14.6 m) and a deck 21 ft wide.

Who owns Nfa 02406 over Fort Loudon Lake?

It is owned by the City or Municipal Highway Agency.