US Bridges

Nfa B212 over Adair Creek

Fair

Madison County, Tennessee · 4.1 MI NW JCT I40&SR20 · Structure no. 570B2120001

Built
1990
35 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
114 ft
1 main span
Daily traffic
270
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa B212 over Adair Creek is a prestressed concrete box beam or girders - single or spread carrying Nfa B212 over Adair Creek in Madison County, Tennessee. It was built in 1990, so it is 35 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 270 vehicles a day, roughly 4% of them trucks, projected to reach 432 by 2041. The structure is 114 ft (34.7 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa B212
CrossesAdair Creek
Location4.1 MI NW JCT I40&SR20
RouteCounty Highway 212
CountyMadison County
StateTennessee
Coordinates35.68042, -88.94372
Functional classRural 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckOther
Main spans1 (+4 approach)
Design loadH 15
Structure length114 ft (34.7 m)
Longest span38 ft (11.6 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic270 (2020)
Projected traffic432 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 B212 over Adair Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Nfa B212 over Adair Creek 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 B212 over Adair Creek carry?

About 270 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa B212 over Adair Creek?

The structure is 114 ft (34.7 m) long with a longest span of 38 ft (11.6 m) and a deck 25 ft wide.

Who owns Nfa B212 over Adair Creek?

It is owned by the County Highway Agency.