US Bridges

Nfa A008 over Standifer Branch

Fair

Marion County, Tennessee · 0.7 MI E JCT SR2&SR150 · Structure no. 58F00080001

Built
1940
85 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
110
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A008 over Standifer Branch is a concrete continuous culvert carrying Nfa A008 over Standifer Branch in Marion County, Tennessee. It was built in 1940, so it is 85 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 110 vehicles a day, roughly 1% of them trucks, projected to reach 176 by 2040. The structure is 24 ft (7.4 m) long and 31 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A008
CrossesStandifer Branch
Location0.7 MI E JCT SR2&SR150
RouteCity Street 8
CountyMarion County
StateTennessee
Coordinates35.07452, -85.61521
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 inspectionSeptember 2024
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 rating35.7 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length24 ft (7.4 m)
Longest span10 ft (3 m)
Deck width31 ft (9.5 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic176 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$64,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A008 over Standifer Branch built?

It was built in 1940, making it 85 years old in 2025.

What condition is Nfa A008 over Standifer 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 September 2024.

How much traffic does Nfa A008 over Standifer Branch carry?

About 110 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A008 over Standifer Branch?

The structure is 24 ft (7.4 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns Nfa A008 over Standifer Branch?

It is owned by the City or Municipal Highway Agency.