US Bridges

Nfa D242 over Cox Creek

Fair

Knox County, Tennessee · Knoxville · Structure no. 470D2820001

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
200
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa D242 over Cox Creek is a steel culvert carrying Nfa D242 over Cox Creek in Knox County, Tennessee. It was built in 1975, so it is 50 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 200 vehicles a day, projected to reach 320 by 2040. The structure is 24 ft (7.3 m) long and 30 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNfa D242
CrossesCox Creek
LocationKnoxville
RouteCounty Highway 282
Coordinates36.07907, -83.88721
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2020)
Projected traffic320 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$430,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa D242 over Cox Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Nfa D242 over Cox 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 June 2024.

How much traffic does Nfa D242 over Cox Creek carry?

About 200 vehicles per day (2020 count).

How long is Nfa D242 over Cox Creek?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 30 ft wide.

Who owns Nfa D242 over Cox Creek?

It is owned by the County Highway Agency.