US Bridges

FAP 34 over Roan Creek

Fair

Johnson County, Tennessee · .4 M N of F Wallace RD · Structure no. 46SR0340019

Built
1956
69 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
39 ft
3 main spans
Daily traffic
5,206
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 34 over Roan Creek is a concrete continuous culvert carrying FAP 34 over Roan Creek in Johnson County, Tennessee. It was built in 1956, so it is 69 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 5,206 vehicles a day, roughly 5% of them trucks, projected to reach 8,330 by 2042. The structure is 39 ft (11.8 m) long and 35 ft wide. If it were closed, the detour would be 52.2 mi (84 km).

Location

Open in Google Maps
CarriesFAP 34
CrossesRoan Creek
Location.4 M N of F Wallace RD
RouteU.S. Route 421
CountyJohnson County
StateTennessee
Coordinates36.37781, -81.76044
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length39 ft (11.8 m)
Longest span12 ft (3.7 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,206 (2021)
Projected traffic8,330 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed52.2 mi (84 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$137,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 34 over Roan Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is FAP 34 over Roan 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 September 2024.

How much traffic does FAP 34 over Roan Creek carry?

About 5,206 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAP 34 over Roan Creek?

The structure is 39 ft (11.8 m) long with a longest span of 12 ft (3.7 m) and a deck 35 ft wide.

Who owns FAP 34 over Roan Creek?

It is owned by the State Highway Agency.