US Bridges

Nfa 1647 over Branch

Good

Humphreys County, Tennessee · 1 MI East of Benton CO Li · Structure no. 43016740001

Built
1954
71 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
290
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1647 over Branch is a concrete continuous culvert carrying Nfa 1647 over Branch in Humphreys County, Tennessee. It was built in 1954, so it is 71 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 290 vehicles a day, roughly 3% of them trucks, projected to reach 464 by 2042. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 11.2 mi (18 km).

CarriesNfa 1647
CrossesBranch
Location1 MI East of Benton CO Li
RouteCounty Highway 1647
Coordinates35.93667, -87.91312
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.9 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 traffic290 (2021)
Projected traffic464 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$166,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1647 over Branch built?

It was built in 1954, making it 71 years old in 2025.

What condition is Nfa 1647 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 November 2023.

How much traffic does Nfa 1647 over Branch carry?

About 290 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1647 over Branch?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Nfa 1647 over Branch?

It is owned by the County Highway Agency.