US Bridges

Nfa A579 over Brown Creek

GoodPosted for load

Obion County, Tennessee · Inman Hollow Road · Structure no. 660A6880001

Built
1965
60 years old
Condition
Good
inspected March 2023
Type
Channel Beam
Concrete
Length
29 ft
1 main span
Daily traffic
830
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A579 over Brown Creek is a concrete channel beam carrying Nfa A579 over Brown Creek in Obion County, Tennessee. It was built in 1965, so it is 60 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. Its operating status is: posted for load restriction.

It carries about 830 vehicles a day, roughly 12% of them trucks, projected to reach 1,328 by 2042. The structure is 29 ft (8.8 m) long and 25 ft wide. If it were closed, the detour would be 61.5 mi (99 km).

CarriesNfa A579
CrossesBrown Creek
LocationInman Hollow Road
RouteCounty Highway 579
Coordinates36.25478, -89.40381
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.6 US tons
Inventory rating20.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 10
Structure length29 ft (8.8 m)
Longest span29 ft (8.8 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic830 (2020)
Projected traffic1,328 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed61.5 mi (99 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$106,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A579 over Brown Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Nfa A579 over Brown Creek 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 March 2023.

How much traffic does Nfa A579 over Brown Creek carry?

About 830 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is Nfa A579 over Brown Creek?

The structure is 29 ft (8.8 m) long with a longest span of 29 ft (8.8 m) and a deck 25 ft wide.

Who owns Nfa A579 over Brown Creek?

It is owned by the County Highway Agency.