US Bridges

FAU 4171 over Branch

Fair

Davidson County, Tennessee · In Nashville · Structure no. 19M32860001

Built
1950
75 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
35 ft
3 main spans
Daily traffic
13,053
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 4171 over Branch is a concrete continuous culvert carrying FAU 4171 over Branch in Davidson County, Tennessee. It was built in 1950, so it is 75 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 13,053 vehicles a day, roughly 3% of them trucks, projected to reach 21,264 by 2041. The structure is 35 ft (10.7 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFAU 4171
CrossesBranch
LocationIn Nashville
RouteCity Street 4171
CountyDavidson County
StateTennessee
Coordinates36.25571, -86.70883
Functional classUrban Collector

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating24.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length35 ft (10.7 m)
Longest span7 ft (2.1 m)
Deck width35 ft (10.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,053 (2021)
Projected traffic21,264 by 2041
Trucks3%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$152,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 4171 over Branch built?

It was built in 1950, making it 75 years old in 2025.

What condition is FAU 4171 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 April 2023.

How much traffic does FAU 4171 over Branch carry?

About 13,053 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is FAU 4171 over Branch?

The structure is 35 ft (10.7 m) long with a longest span of 7 ft (2.1 m) and a deck 35 ft wide.

Who owns FAU 4171 over Branch?

It is owned by the City or Municipal Highway Agency.