US Bridges

Nfa 999 (sa 6026) over Branch

Fair

Maury County, Tennessee · 8.5 M. Nw. Columbia. · Structure no. 60009990007

Built
1950
75 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
555
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 999 (sa 6026) over Branch is a concrete continuous culvert carrying Nfa 999 (sa 6026) over Branch in Maury 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 555 vehicles a day, roughly 3% of them trucks, projected to reach 960 by 2040. The structure is 23 ft (7 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNfa 999 (sa 6026)
CrossesBranch
Location8.5 M. Nw. Columbia.
RouteCounty Highway 999
Coordinates35.73343, -87.0696
Functional classRural Minor 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 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic555 (2021)
Projected traffic960 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$77,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 999 (sa 6026) over Branch built?

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

What condition is Nfa 999 (sa 6026) 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 2024.

How much traffic does Nfa 999 (sa 6026) over Branch carry?

About 555 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 999 (sa 6026) over Branch?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 26 ft wide.

Who owns Nfa 999 (sa 6026) over Branch?

It is owned by the County Highway Agency.