US Bridges

FAU 20 over Nfa A050 & Branch

Fair

Madison County, Tennessee · In the City of Jackson · Structure no. 57SR0200017

Built
1991
34 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,585 ft
4 main spans
Daily traffic
12,522
2021 count
Owner
State
State Highway Agency

About this bridge

FAU 20 over Nfa A050 & Branch is a steel continuous stringer/multi-beam or girder carrying FAU 20 over Nfa A050 & Branch in Madison County, Tennessee. It was built in 1991, so it is 34 years old, younger 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 12,522 vehicles a day, roughly 9% of them trucks, projected to reach 17,574 by 2041. The structure is 1,585 ft (483.2 m) long and 45 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesFAU 20
CrossesNfa A050 & Branch
LocationIn the City of Jackson
RouteU.S. Route 412
CountyMadison County
StateTennessee
Coordinates35.66731, -88.89408
Functional classUrban Other Principal Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, precast panels
Main spans4 (+11 approach)
Design loadHS 20
Structure length1,585 ft (483.2 m)
Longest span209 ft (63.6 m)
Deck width45 ft (13.6 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,522 (2021)
Projected traffic17,574 by 2041
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemYes

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$20.2 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 20 over Nfa A050 & Branch built?

It was built in 1991, making it 34 years old in 2025.

What condition is FAU 20 over Nfa A050 & Branch 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 FAU 20 over Nfa A050 & Branch carry?

About 12,522 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAU 20 over Nfa A050 & Branch?

The structure is 1,585 ft (483.2 m) long with a longest span of 209 ft (63.6 m) and a deck 45 ft wide.

Who owns FAU 20 over Nfa A050 & Branch?

It is owned by the State Highway Agency.