US Bridges

Nfa 2432 (sa 4715) over Bull Run Creek

FairPosted for load

Knox County, Tennessee · Copeland RD on CO Line · Structure no. 47024320001

Built
1940
85 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
142 ft
4 main spans
Daily traffic
360
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2432 (sa 4715) over Bull Run Creek is a concrete tee beam carrying Nfa 2432 (sa 4715) over Bull Run Creek in Knox County, Tennessee. It was built in 1940, so it is 85 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. Its operating status is: posted for load restriction.

It carries about 360 vehicles a day, roughly 3% of them trucks, projected to reach 528 by 2040. The structure is 142 ft (43.3 m) long and 18 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa 2432 (sa 4715)
CrossesBull Run Creek
LocationCopeland RD on CO Line
RouteCounty Highway 2432
CountyKnox County
StateTennessee
Coordinates36.05108, -84.07407
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length142 ft (43.3 m)
Longest span43 ft (13.1 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic360 (2021)
Projected traffic528 by 2040
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 with deck rehabilitation or replacement
Estimated improvement cost$611,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2432 (sa 4715) over Bull Run Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Nfa 2432 (sa 4715) over Bull Run 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 2432 (sa 4715) over Bull Run Creek carry?

About 360 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2432 (sa 4715) over Bull Run Creek?

The structure is 142 ft (43.3 m) long with a longest span of 43 ft (13.1 m) and a deck 18 ft wide.

Who owns Nfa 2432 (sa 4715) over Bull Run Creek?

It is owned by the County Highway Agency.