US Bridges

Nfa 868 (sa 5723) over Overflow

Fair

Madison County, Tennessee · 4.3 MI NE JCT SR5&SR18 · Structure no. 57S81620001

Built
1960
65 years old
Condition
Fair
inspected May 2023
Type
Channel Beam
Concrete
Length
209 ft
11 main spans
Daily traffic
3,157
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 868 (sa 5723) over Overflow is a concrete channel beam carrying Nfa 868 (sa 5723) over Overflow in Madison 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 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 3,157 vehicles a day, roughly 1% of them trucks, projected to reach 5,600 by 2041. The structure is 209 ft (63.7 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 868 (sa 5723)
CrossesOverflow
Location4.3 MI NE JCT SR5&SR18
RouteCounty Highway 868
CountyMadison County
StateTennessee
Coordinates35.59256, -88.75228
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
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 typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans11
Design loadH 15
Structure length209 ft (63.7 m)
Longest span19 ft (5.8 m)
Deck width26 ft (7.8 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,157 (2021)
Projected traffic5,600 by 2041
Trucks1%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 868 (sa 5723) over Overflow built?

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

What condition is Nfa 868 (sa 5723) 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 May 2023.

How much traffic does Nfa 868 (sa 5723) over Overflow carry?

About 3,157 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Nfa 868 (sa 5723) over Overflow?

The structure is 209 ft (63.7 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns Nfa 868 (sa 5723) over Overflow?

It is owned by the County Highway Agency.