US Bridges

Nfa A039 over Mossy Creek

Fair

Jefferson County, Tennessee · In Jefferson City · Structure no. 450A0390001

Built
1984
41 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
49 ft
3 main spans
Daily traffic
770
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A039 over Mossy Creek is a concrete continuous culvert carrying Nfa A039 over Mossy Creek in Jefferson County, Tennessee. It was built in 1984, so it is 41 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 770 vehicles a day, roughly 1% of them trucks, projected to reach 1,232 by 2041. The structure is 49 ft (14.8 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNfa A039
CrossesMossy Creek
LocationIn Jefferson City
RouteCity Street 39
CountyJefferson County
StateTennessee
Coordinates36.12837, -83.48662
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length49 ft (14.8 m)
Longest span15 ft (4.6 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic770 (2020)
Projected traffic1,232 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 A039 over Mossy Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nfa A039 over Mossy 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 May 2023.

How much traffic does Nfa A039 over Mossy Creek carry?

About 770 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A039 over Mossy Creek?

The structure is 49 ft (14.8 m) long with a longest span of 15 ft (4.6 m) and a deck 31 ft wide.

Who owns Nfa A039 over Mossy Creek?

It is owned by the City or Municipal Highway Agency.