US Bridges

Nfa A427 over Airport Rd/Sr 22

Fair

Obion County, Tennessee · Airport Rd. · Structure no. 66SR0220051

Built
1985
40 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
190 ft
2 main spans
Daily traffic
9,060
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A427 over Airport Rd/Sr 22 is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa A427 over Airport Rd/Sr 22 in Obion County, Tennessee. It was built in 1985, so it is 40 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 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 9,060 vehicles a day, roughly 8% of them trucks, projected to reach 14,496 by 2041. The structure is 190 ft (57.9 m) long and 32 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

Location

Open in Google Maps
CarriesNfa A427
CrossesAirport Rd/Sr 22
LocationAirport Rd.
RouteCounty Highway 427
CountyObion County
StateTennessee
Coordinates36.40119, -88.97875
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length190 ft (57.9 m)
Longest span95 ft (29 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,060 (2020)
Projected traffic14,496 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed37.3 mi (60 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$953,000 (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A427 over Airport Rd/Sr 22 built?

It was built in 1985, making it 40 years old in 2025.

What condition is Nfa A427 over Airport Rd/Sr 22 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 March 2023.

How much traffic does Nfa A427 over Airport Rd/Sr 22 carry?

About 9,060 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Nfa A427 over Airport Rd/Sr 22?

The structure is 190 ft (57.9 m) long with a longest span of 95 ft (29 m) and a deck 32 ft wide.

Who owns Nfa A427 over Airport Rd/Sr 22?

It is owned by the County Highway Agency.