US Bridges

Nfa B261 over Nfa B261/I40

Fair

Madison County, Tennessee · 3.4 MI SW JCT I40&SR20 · Structure no. 57I00400015

Built
1961
64 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
237 ft
4 main spans
Daily traffic
10
2020 count
Owner
State
State Highway Agency

About this bridge

Nfa B261 over Nfa B261/I40 is a prestressed concrete stringer/multi-beam or girder carrying Nfa B261 over Nfa B261/I40 in Madison County, Tennessee. It was built in 1961, so it is 64 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 10 vehicles a day, roughly 2% of them trucks, projected to reach 16 by 2041. The structure is 237 ft (72.2 m) long and 28 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesNfa B261
CrossesNfa B261/I40
Location3.4 MI SW JCT I40&SR20
RouteCounty Highway 261
CountyMadison County
StateTennessee
Coordinates35.6385, -88.9297
Functional classUrban Local

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
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
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating28.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length237 ft (72.2 m)
Longest span68 ft (20.7 m)
Deck width28 ft (8.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2020)
Projected traffic16 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.5 million (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa B261 over Nfa B261/I40 built?

It was built in 1961, making it 64 years old in 2025.

What condition is Nfa B261 over Nfa B261/I40 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 April 2023.

How much traffic does Nfa B261 over Nfa B261/I40 carry?

About 10 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa B261 over Nfa B261/I40?

The structure is 237 ft (72.2 m) long with a longest span of 68 ft (20.7 m) and a deck 28 ft wide.

Who owns Nfa B261 over Nfa B261/I40?

It is owned by the State Highway Agency.