US Bridges

Nfa A001 over Branch

Good

Obion County, Tennessee · 0.5 MI SW JCT SR21&SR22 · Structure no. 660A0010001

Built
1993
32 years old
Condition
Good
inspected March 2023
Type
Channel Beam
Concrete
Length
29 ft
1 main span
Daily traffic
440
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A001 over Branch is a concrete channel beam carrying Nfa A001 over Branch in Obion County, Tennessee. It was built in 1993, so it is 32 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 440 vehicles a day, roughly 1% of them trucks, projected to reach 704 by 2041. The structure is 29 ft (8.8 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A001
CrossesBranch
Location0.5 MI SW JCT SR21&SR22
RouteCounty Highway 1
CountyObion County
StateTennessee
Coordinates36.35461, -89.39533
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating21.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length29 ft (8.8 m)
Longest span29 ft (8.8 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic440 (2020)
Projected traffic704 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$106,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A001 over Branch built?

It was built in 1993, making it 32 years old in 2025.

What condition is Nfa A001 over 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 March 2023.

How much traffic does Nfa A001 over Branch carry?

About 440 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A001 over Branch?

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 A001 over Branch?

It is owned by the County Highway Agency.