US Bridges

Nfa 869 (sa 3506) over Big Hatchie River

FairPosted for load

Hardeman County, Tennessee · 2 MI W of Mcnairy · Structure no. 35S80810009

Built
1954
71 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
375 ft
9 main spans
Daily traffic
369
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 869 (sa 3506) over Big Hatchie River is a steel continuous stringer/multi-beam or girder carrying Nfa 869 (sa 3506) over Big Hatchie River in Hardeman 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 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. Its operating status is: posted for load restriction.

It carries about 369 vehicles a day, roughly 3% of them trucks, projected to reach 790 by 2042. The structure is 375 ft (114.4 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 869 (sa 3506)
CrossesBig Hatchie River
Location2 MI W of Mcnairy
RouteCounty Highway 869
CountyHardeman County
StateTennessee
Coordinates35.12654, -88.81333
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.2 US tons
Inventory rating17.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadH 10
Structure length375 ft (114.4 m)
Longest span80 ft (24.4 m)
Deck width27 ft (8.1 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic369 (2021)
Projected traffic790 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 869 (sa 3506) over Big Hatchie River built?

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

What condition is Nfa 869 (sa 3506) over Big Hatchie River 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 July 2024.

How much traffic does Nfa 869 (sa 3506) over Big Hatchie River carry?

About 369 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 869 (sa 3506) over Big Hatchie River?

The structure is 375 ft (114.4 m) long with a longest span of 80 ft (24.4 m) and a deck 27 ft wide.

Who owns Nfa 869 (sa 3506) over Big Hatchie River?

It is owned by the County Highway Agency.