US Bridges

Nfa 846 (sa 3816) over Overflow

Fair

Haywood County, Tennessee · 1.8 MI NE JCT SR76&SR369 · Structure no. 38S81310003

Built
1960
65 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
1,591
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 846 (sa 3816) over Overflow is a concrete continuous culvert carrying Nfa 846 (sa 3816) over Overflow in Haywood County, Tennessee. It was built in 1960, so it is 65 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 5 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 1,591 vehicles a day, roughly 3% of them trucks, projected to reach 2,787 by 2041. The structure is 31 ft (9.4 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 846 (sa 3816)
CrossesOverflow
Location1.8 MI NE JCT SR76&SR369
RouteCounty Highway 846
CountyHaywood County
StateTennessee
Coordinates35.61769, -89.21061
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating28.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span12 ft (3.7 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,591 (2021)
Projected traffic2,787 by 2041
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 846 (sa 3816) over Overflow built?

It was built in 1960, making it 65 years old in 2025.

What condition is Nfa 846 (sa 3816) 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 August 2023.

How much traffic does Nfa 846 (sa 3816) over Overflow carry?

About 1,591 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 846 (sa 3816) over Overflow?

The structure is 31 ft (9.4 m) long with a longest span of 12 ft (3.7 m) and a deck 31 ft wide.

Who owns Nfa 846 (sa 3816) over Overflow?

It is owned by the County Highway Agency.