US Bridges

Nfa A040 over Stock Creek

Good

Knox County, Tennessee · 1.2 M SW of SR71-SR168 Jc · Structure no. 470A0400003

Built
1915
110 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
27 ft
1 main span
Daily traffic
3,647
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa A040 over Stock Creek is a concrete culvert carrying Nfa A040 over Stock Creek in Knox County, Tennessee. It was built in 1915, so it is 110 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 3,647 vehicles a day, roughly 1% of them trucks, projected to reach 3,488 by 2041. The structure is 27 ft (8.2 m) long and 21 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNfa A040
CrossesStock Creek
Location1.2 M SW of SR71-SR168 Jc
RouteCounty Highway 2436
Coordinates35.89492, -83.85365
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 inspectionApril 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 alignment6: Equal to present minimum criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,647 (2021)
Projected traffic3,488 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$208,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A040 over Stock Creek built?

It was built in 1915, making it 110 years old in 2025.

What condition is Nfa A040 over Stock 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 April 2024.

How much traffic does Nfa A040 over Stock Creek carry?

About 3,647 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Nfa A040 over Stock Creek?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 21 ft wide.

Who owns Nfa A040 over Stock Creek?

It is owned by the County Highway Agency.