US Bridges

Nfa A338 over Wall Branch

Fair

Montgomery County, Tennessee · 8.5 M. N. Southside. · Structure no. 630A3380001

Built
1984
41 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete Continuous
Length
38 ft
2 main spans
Daily traffic
1,030
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A338 over Wall Branch is a concrete continuous culvert carrying Nfa A338 over Wall Branch in Montgomery County, Tennessee. It was built in 1984, so it is 41 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 1,030 vehicles a day, roughly 2% of them trucks, projected to reach 1,648 by 2040. The structure is 38 ft (11.6 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A338
CrossesWall Branch
Location8.5 M. N. Southside.
RouteCity Street 338
CountyMontgomery County
StateTennessee
Coordinates36.50028, -87.27824
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,030 (2020)
Projected traffic1,648 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$316,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A338 over Wall Branch built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nfa A338 over Wall 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 October 2024.

How much traffic does Nfa A338 over Wall Branch carry?

About 1,030 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A338 over Wall Branch?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m) and a deck 28 ft wide.

Who owns Nfa A338 over Wall Branch?

It is owned by the City or Municipal Highway Agency.