US Bridges

Nfa 2072 (sa 8009) over Saint Mary Branch

Good

Smith County, Tennessee · 5.6 MI SE JCT SR141&SR264 · Structure no. 80020720009

Built
1970
55 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete Continuous
Length
38 ft
2 main spans
Daily traffic
543
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2072 (sa 8009) over Saint Mary Branch is a concrete continuous culvert carrying Nfa 2072 (sa 8009) over Saint Mary Branch in Smith County, Tennessee. It was built in 1970, so it is 55 years old, older 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 543 vehicles a day, roughly 3% of them trucks, projected to reach 754 by 2042. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa 2072 (sa 8009)
CrossesSaint Mary Branch
Location5.6 MI SE JCT SR141&SR264
RouteCounty Highway 2072
Coordinates36.15585, -85.8261
Functional classRural Minor Collector

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic543 (2021)
Projected traffic754 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 2072 (sa 8009) over Saint Mary Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa 2072 (sa 8009) over Saint Mary 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 July 2023.

How much traffic does Nfa 2072 (sa 8009) over Saint Mary Branch carry?

About 543 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2072 (sa 8009) over Saint Mary Branch?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Nfa 2072 (sa 8009) over Saint Mary Branch?

It is owned by the County Highway Agency.