US Bridges

Nfa A910 over Branch

Fair

Williamson County, Tennessee · 1.5 M.I. NW of JCT 96/100 · Structure no. 940A5220001

Built
1991
34 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
320
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A910 over Branch is a concrete continuous culvert carrying Nfa A910 over Branch in Williamson County, Tennessee. It was built in 1991, so it is 34 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 320 vehicles a day, roughly 2% of them trucks, projected to reach 512 by 2042. The structure is 37 ft (11.3 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A910
CrossesBranch
Location1.5 M.I. NW of JCT 96/100
RouteCity Street 910
CountyWilliamson County
StateTennessee
Coordinates36.0014, -87.12971
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 inspectionJune 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span15 ft (4.6 m)
Deck width34 ft (10.5 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic320 (2020)
Projected traffic512 by 2042
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 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 A910 over Branch built?

It was built in 1991, making it 34 years old in 2025.

What condition is Nfa A910 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 June 2023.

How much traffic does Nfa A910 over Branch carry?

About 320 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A910 over Branch?

The structure is 37 ft (11.3 m) long with a longest span of 15 ft (4.6 m) and a deck 34 ft wide.

Who owns Nfa A910 over Branch?

It is owned by the City or Municipal Highway Agency.