US Bridges

Nfa A045 over Branch

Fair

Obion County, Tennessee · 3.2 MI SW JCT SR3&SR184 · Structure no. 660A0450001

Built
1970
55 years old
Condition
Fair
inspected March 2023
Type
Channel Beam
Concrete
Length
29 ft
1 main span
Daily traffic
670
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A045 over Branch is a concrete channel beam carrying Nfa A045 over Branch in Obion 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 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 670 vehicles a day, roughly 4% of them trucks, projected to reach 1,072 by 2039. The structure is 29 ft (8.8 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A045
CrossesBranch
Location3.2 MI SW JCT SR3&SR184
RouteCounty Highway 45
CountyObion County
StateTennessee
Coordinates36.40528, -89.12728
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.6 US tons
Inventory rating20 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 width29 ft (8.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic670 (2020)
Projected traffic1,072 by 2039
Trucks4%
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 statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A045 over Branch built?

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

What condition is Nfa A045 over 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 March 2023.

How much traffic does Nfa A045 over Branch carry?

About 670 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A045 over Branch?

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

Who owns Nfa A045 over Branch?

It is owned by the County Highway Agency.