US Bridges

Nfa A438 over Branch

Good

Sumner County, Tennessee · 2.0 MI SW JCT SR 109&SR6 · Structure no. 830A4380003

Built
2004
21 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Concrete
Length
45 ft
1 main span
Daily traffic
310
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A438 over Branch is a concrete stringer/multi-beam or girder carrying Nfa A438 over Branch in Sumner County, Tennessee. It was built in 2004, so it is 21 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 310 vehicles a day, roughly 8% of them trucks, projected to reach 496 by 2041. The structure is 45 ft (13.6 m) long and 50 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNfa A438
CrossesBranch
Location2.0 MI SW JCT SR 109&SR6
RouteCity Street 0A438
Coordinates36.34553, -86.49159
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length45 ft (13.6 m)
Longest span42 ft (12.8 m)
Deck width50 ft (15.2 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic310 (2020)
Projected traffic496 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 A438 over Branch built?

It was built in 2004, making it 21 years old in 2025.

What condition is Nfa A438 over Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does Nfa A438 over Branch carry?

About 310 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Nfa A438 over Branch?

The structure is 45 ft (13.6 m) long with a longest span of 42 ft (12.8 m) and a deck 50 ft wide.

Who owns Nfa A438 over Branch?

It is owned by the City or Municipal Highway Agency.