US Bridges

Nfa D360 over Beaver Creek

Fair

Knox County, Tennessee · At Harbison X-Rds · Structure no. 470D3600001

Built
1935
90 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
2,570
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa D360 over Beaver Creek is a concrete continuous culvert carrying Nfa D360 over Beaver Creek in Knox County, Tennessee. It was built in 1935, so it is 90 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 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 2,570 vehicles a day, roughly 2% of them trucks, projected to reach 4,112 by 2040. The structure is 38 ft (11.6 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNfa D360
CrossesBeaver Creek
LocationAt Harbison X-Rds
RouteCounty Highway 360
Coordinates36.11535, -83.85819
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating57.1 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length38 ft (11.6 m)
Longest span11 ft (3.4 m)
Deck width24 ft (7.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,570 (2020)
Projected traffic4,112 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$247,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa D360 over Beaver Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is Nfa D360 over Beaver 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 May 2024.

How much traffic does Nfa D360 over Beaver Creek carry?

About 2,570 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa D360 over Beaver Creek?

The structure is 38 ft (11.6 m) long with a longest span of 11 ft (3.4 m) and a deck 24 ft wide.

Who owns Nfa D360 over Beaver Creek?

It is owned by the County Highway Agency.