US Bridges

Nfa A486 over College Creek

Fair

Greene County, Tennessee · In Tusculum-S of SR 107 · Structure no. 300A4860001

Built
1990
35 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
280
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A486 over College Creek is a concrete continuous culvert carrying Nfa A486 over College Creek in Greene County, Tennessee. It was built in 1990, so it is 35 years old, younger 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 280 vehicles a day, roughly 2% of them trucks, projected to reach 448 by 2039. The structure is 25 ft (7.6 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa A486
CrossesCollege Creek
LocationIn Tusculum-S of SR 107
RouteCity Street 486
CountyGreene County
StateTennessee
Coordinates36.17075, -82.76385
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width28 ft (8.4 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (2020)
Projected traffic448 by 2039
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A486 over College Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Nfa A486 over College 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 February 2023.

How much traffic does Nfa A486 over College Creek carry?

About 280 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A486 over College Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 28 ft wide.

Who owns Nfa A486 over College Creek?

It is owned by the City or Municipal Highway Agency.