US Bridges

Nfa 859 (sa 9211) over Overflow

Fair

Weakley County, Tennessee · 2 MI NW of Gleason · Structure no. 92008590009

Built
1950
75 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
29 ft
1 main span
Daily traffic
396
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 859 (sa 9211) over Overflow is a concrete tee beam carrying Nfa 859 (sa 9211) over Overflow in Weakley County, Tennessee. It was built in 1950, so it is 75 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 396 vehicles a day, roughly 3% of them trucks, projected to reach 1,024 by 2040. The structure is 29 ft (8.8 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNfa 859 (sa 9211)
CrossesOverflow
Location2 MI NW of Gleason
RouteCounty Highway 859
Coordinates36.24836, -88.65218
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length29 ft (8.8 m)
Longest span29 ft (8.8 m)
Deck width27 ft (8.3 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic396 (2021)
Projected traffic1,024 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$206,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 859 (sa 9211) over Overflow built?

It was built in 1950, making it 75 years old in 2025.

What condition is Nfa 859 (sa 9211) over Overflow 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 October 2024.

How much traffic does Nfa 859 (sa 9211) over Overflow carry?

About 396 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 859 (sa 9211) over Overflow?

The structure is 29 ft (8.8 m) long with a longest span of 29 ft (8.8 m) and a deck 27 ft wide.

Who owns Nfa 859 (sa 9211) over Overflow?

It is owned by the County Highway Agency.