US Bridges

Nfa A299 over Branch

Good

Robertson County, Tennessee · 1.5 MI SW JCT SR11&SR257 · Structure no. 740A2990001

Built
1986
39 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
280
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A299 over Branch is a concrete continuous culvert carrying Nfa A299 over Branch in Robertson County, Tennessee. It was built in 1986, so it is 39 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 280 vehicles a day, roughly 2% of them trucks, projected to reach 448 by 2042. The structure is 37 ft (11.3 m) long and 26 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesNfa A299
CrossesBranch
Location1.5 MI SW JCT SR11&SR257
RouteCounty Highway 0A299
Coordinates36.38984, -86.79517
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating24.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span12 ft (3.7 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (2020)
Projected traffic448 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A299 over Branch built?

It was built in 1986, making it 39 years old in 2025.

What condition is Nfa A299 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 March 2024.

How much traffic does Nfa A299 over Branch carry?

About 280 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A299 over Branch?

The structure is 37 ft (11.3 m) long with a longest span of 12 ft (3.7 m) and a deck 26 ft wide.

Who owns Nfa A299 over Branch?

It is owned by the County Highway Agency.