US Bridges

Nfa 910 (sa 4302) over Buffalo River

Good

Humphreys County, Tennessee · 3 M. N. I40-4 M.W. SR 13 · Structure no. 43F03770001

Built
2008
17 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
1,300 ft
11 main spans
Daily traffic
282
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 910 (sa 4302) over Buffalo River is a concrete continuous stringer/multi-beam or girder carrying Nfa 910 (sa 4302) over Buffalo River in Humphreys County, Tennessee. It was built in 2008, so it is 17 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 282 vehicles a day, roughly 3% of them trucks, projected to reach 451 by 2042. The structure is 1,300 ft (396.2 m) long and 30 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

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CarriesNfa 910 (sa 4302)
CrossesBuffalo River
Location3 M. N. I40-4 M.W. SR 13
RouteCounty Highway 910
CountyHumphreys County
StateTennessee
Coordinates35.9176, -87.84464
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length1,300 ft (396.2 m)
Longest span130 ft (39.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic282 (2021)
Projected traffic451 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 910 (sa 4302) over Buffalo River built?

It was built in 2008, making it 17 years old in 2025.

What condition is Nfa 910 (sa 4302) over Buffalo River 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 October 2023.

How much traffic does Nfa 910 (sa 4302) over Buffalo River carry?

About 282 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 910 (sa 4302) over Buffalo River?

The structure is 1,300 ft (396.2 m) long with a longest span of 130 ft (39.6 m) and a deck 30 ft wide.

Who owns Nfa 910 (sa 4302) over Buffalo River?

It is owned by the County Highway Agency.