US Bridges

Nfa A364 over Rockhouse Creek

Fair

Lewis County, Tennessee · 1 M S Hohenwald · Structure no. 510A3640001

Built
1998
27 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
67 ft
3 main spans
Daily traffic
70
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A364 over Rockhouse Creek is a concrete continuous culvert carrying Nfa A364 over Rockhouse Creek in Lewis County, Tennessee. It was built in 1998, so it is 27 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 70 vehicles a day, roughly 2% of them trucks, projected to reach 112 by 2041. The structure is 67 ft (20.5 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A364
CrossesRockhouse Creek
Location1 M S Hohenwald
RouteCounty Highway 364
CountyLewis County
StateTennessee
Coordinates35.51332, -87.5712
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length67 ft (20.5 m)
Longest span18 ft (5.5 m)
Deck width27 ft (8.3 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2020)
Projected traffic112 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A364 over Rockhouse Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Nfa A364 over Rockhouse 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 2023.

How much traffic does Nfa A364 over Rockhouse Creek carry?

About 70 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A364 over Rockhouse Creek?

The structure is 67 ft (20.5 m) long with a longest span of 18 ft (5.5 m) and a deck 27 ft wide.

Who owns Nfa A364 over Rockhouse Creek?

It is owned by the County Highway Agency.