US Bridges

Nfa A349 over Loyd Branch

Fair

Marshall County, Tennessee · In City of Lewisburg · Structure no. 590A3490001

Built
1970
55 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
370
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A349 over Loyd Branch is a concrete continuous culvert carrying Nfa A349 over Loyd Branch in Marshall 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 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 370 vehicles a day, roughly 1% of them trucks, projected to reach 592 by 2041. The structure is 24 ft (7.4 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa A349
CrossesLoyd Branch
LocationIn City of Lewisburg
RouteCity Street 349
CountyMarshall County
StateTennessee
Coordinates35.4424, -86.80815
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 inspectionAugust 2024
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 alignment6: Equal to present minimum criteria
Operating rating39.2 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length24 ft (7.4 m)
Longest span10 ft (3 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic370 (2020)
Projected traffic592 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 A349 over Loyd Branch built?

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

What condition is Nfa A349 over Loyd Branch 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 August 2024.

How much traffic does Nfa A349 over Loyd Branch carry?

About 370 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A349 over Loyd Branch?

The structure is 24 ft (7.4 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns Nfa A349 over Loyd Branch?

It is owned by the City or Municipal Highway Agency.