US Bridges

Nfa A980 (sa 5710) over Overflow

PoorPosted for load

Madison County, Tennessee · 1.2 MI JCT of SR 1 · Structure no. 57016440013

Built
1922
103 years old
Condition
Poor
inspected May 2023
Type
Tee Beam
Concrete
Length
130 ft
5 main spans
Daily traffic
2,294
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A980 (sa 5710) over Overflow is a concrete tee beam carrying Nfa A980 (sa 5710) over Overflow in Madison County, Tennessee. It was built in 1922, so it is 103 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 2,294 vehicles a day, roughly 13% of them trucks, projected to reach 3,670 by 2042. The structure is 130 ft (39.6 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa A980 (sa 5710)
CrossesOverflow
Location1.2 MI JCT of SR 1
RouteCity Street 980
Coordinates35.61408, -88.86266
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.7 US tons
Inventory rating16.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length130 ft (39.6 m)
Longest span27 ft (8.2 m)
Deck width23 ft (7 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,294 (2021)
Projected traffic3,670 by 2042
Trucks13%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A980 (sa 5710) over Overflow built?

It was built in 1922, making it 103 years old in 2025.

What condition is Nfa A980 (sa 5710) over Overflow in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does Nfa A980 (sa 5710) over Overflow carry?

About 2,294 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Nfa A980 (sa 5710) over Overflow?

The structure is 130 ft (39.6 m) long with a longest span of 27 ft (8.2 m) and a deck 23 ft wide.

Who owns Nfa A980 (sa 5710) over Overflow?

It is owned by the City or Municipal Highway Agency.