US Bridges

Nfa A026 over Harris Branch

Fair

Trousdale County, Tennessee · 1 MI S of Macon Co. · Structure no. 850A0260003

Built
1950
75 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
120
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A026 over Harris Branch is a concrete continuous culvert carrying Nfa A026 over Harris Branch in Trousdale 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 5 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 120 vehicles a day, roughly 6% of them trucks, projected to reach 192 by 2041. The structure is 30 ft (9.1 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa A026
CrossesHarris Branch
Location1 MI S of Macon Co.
RouteCounty Highway 26
CountyTrousdale County
StateTennessee
Coordinates36.43145, -86.16956
Functional classRural 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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 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 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 rating49.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length30 ft (9.1 m)
Longest span10 ft (3 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2020)
Projected traffic192 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$220,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A026 over Harris Branch built?

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

What condition is Nfa A026 over Harris 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 February 2023.

How much traffic does Nfa A026 over Harris Branch carry?

About 120 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Nfa A026 over Harris Branch?

The structure is 30 ft (9.1 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns Nfa A026 over Harris Branch?

It is owned by the County Highway Agency.