US Bridges

Nfa D279 over Cox Creek

Good

Knox County, Tennessee · SE of SR33-SR131 JCT · Structure no. 470D2790001

Built
1935
90 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
1,823
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa D279 over Cox Creek is a concrete continuous culvert carrying Nfa D279 over Cox 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 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 1,823 vehicles a day, roughly 1% of them trucks, projected to reach 2,917 by 2042. The structure is 27 ft (8.2 m) long and 23 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesNfa D279
CrossesCox Creek
LocationSE of SR33-SR131 JCT
RouteCounty Highway 5904
Coordinates36.07945, -83.89877
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
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
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 rating57.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length27 ft (8.2 m)
Longest span11 ft (3.4 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,823 (2021)
Projected traffic2,917 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$148,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa D279 over Cox Creek built?

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

What condition is Nfa D279 over Cox 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 Nfa D279 over Cox Creek carry?

About 1,823 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Nfa D279 over Cox Creek?

The structure is 27 ft (8.2 m) long with a longest span of 11 ft (3.4 m) and a deck 23 ft wide.

Who owns Nfa D279 over Cox Creek?

It is owned by the County Highway Agency.