US Bridges

Nfa A494 over Davis Creek

Fair

Campbell County, Tennessee · S of SR 63 - at County LN · Structure no. 070A4940003

Built
1970
55 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
148 ft
2 main spans
Daily traffic
990
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A494 over Davis Creek is a prestressed concrete stringer/multi-beam or girder carrying Nfa A494 over Davis Creek in Campbell County, Tennessee. It was built in 1970, so it is 55 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 5 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 990 vehicles a day, roughly 2% of them trucks, projected to reach 1,584 by 2042. The structure is 148 ft (45.1 m) long and 22 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesNfa A494
CrossesDavis Creek
LocationS of SR 63 - at County LN
RouteCounty Highway 494
Coordinates36.43861, -83.94083
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.5 US tons
Inventory rating34.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length148 ft (45.1 m)
Longest span74 ft (22.6 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic990 (2020)
Projected traffic1,584 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$569,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A494 over Davis Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A494 over Davis 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 2024.

How much traffic does Nfa A494 over Davis Creek carry?

About 990 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A494 over Davis Creek?

The structure is 148 ft (45.1 m) long with a longest span of 74 ft (22.6 m) and a deck 22 ft wide.

Who owns Nfa A494 over Davis Creek?

It is owned by the County Highway Agency.