US Bridges

Nfa A012 over Brush Branch

Good

Lawrence County, Tennessee · 1 M. SE of Nw. Corner Co. · Structure no. 500A0120001

Built
1980
45 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
31 ft
3 main spans
Daily traffic
60
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A012 over Brush Branch is a concrete continuous culvert carrying Nfa A012 over Brush Branch in Lawrence County, Tennessee. It was built in 1980, so it is 45 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 60 vehicles a day, roughly 2% of them trucks, projected to reach 96 by 2041. The structure is 31 ft (9.5 m) long and 13 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A012
CrossesBrush Branch
Location1 M. SE of Nw. Corner Co.
RouteCounty Highway 12
CountyLawrence County
StateTennessee
Coordinates35.38277, -87.55856
Functional classRural 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 inspectionApril 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.9 US tons
Inventory rating24.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length31 ft (9.5 m)
Longest span10 ft (3 m)
Deck width13 ft (4 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2020)
Projected traffic96 by 2041
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$167,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A012 over Brush Branch built?

It was built in 1980, making it 45 years old in 2025.

What condition is Nfa A012 over Brush 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 April 2023.

How much traffic does Nfa A012 over Brush Branch carry?

About 60 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A012 over Brush Branch?

The structure is 31 ft (9.5 m) long with a longest span of 10 ft (3 m) and a deck 13 ft wide.

Who owns Nfa A012 over Brush Branch?

It is owned by the County Highway Agency.