US Bridges

Nfa A229 (sa 0818) over Branch

Fair

Cannon County, Tennessee · 2MI South of SR1 · Structure no. 080A2290001

Built
1997
28 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
290
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A229 (sa 0818) over Branch is a concrete continuous culvert carrying Nfa A229 (sa 0818) over Branch in Cannon County, Tennessee. It was built in 1997, so it is 28 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 290 vehicles a day, roughly 10% of them trucks, projected to reach 464 by 2041. The structure is 30 ft (9.1 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesNfa A229 (sa 0818)
CrossesBranch
Location2MI South of SR1
RouteCounty Highway 229
CountyCannon County
StateTennessee
Coordinates35.81202, -86.08852
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 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span10 ft (3 m)
Deck width33 ft (10.2 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic290 (2020)
Projected traffic464 by 2041
Trucks10%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A229 (sa 0818) over Branch built?

It was built in 1997, making it 28 years old in 2025.

What condition is Nfa A229 (sa 0818) over 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 May 2023.

How much traffic does Nfa A229 (sa 0818) over Branch carry?

About 290 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Nfa A229 (sa 0818) over Branch?

The structure is 30 ft (9.1 m) long with a longest span of 10 ft (3 m) and a deck 33 ft wide.

Who owns Nfa A229 (sa 0818) over Branch?

It is owned by the County Highway Agency.