US Bridges

FAP 20 over SR-20 / N.T.P.

Fair

Lewis County, Tennessee · 6.1 M -Se Hohenwald · Structure no. 51SR0200001

Built
1961
64 years old
Condition
Fair
inspected May 2023
Type
Arch - Deck
Concrete
Length
82 ft
1 main span
Daily traffic
2,430
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 20 over SR-20 / N.T.P. is a concrete arch - deck carrying FAP 20 over SR-20 / N.T.P. in Lewis 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 2,430 vehicles a day, roughly 6% of them trucks, projected to reach 3,598 by 2041. The structure is 82 ft (25.1 m) long and 34 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesFAP 20
CrossesSR-20 / N.T.P.
Location6.1 M -Se Hohenwald
RouteState Highway 20
CountyLewis County
StateTennessee
Coordinates35.5037, -87.45855
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length82 ft (25.1 m)
Longest span75 ft (22.9 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,430 (2021)
Projected traffic3,598 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed19.9 mi (32 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$916,000 (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAP 20 over SR-20 / N.T.P. built?

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

What condition is FAP 20 over SR-20 / N.T.P. 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 FAP 20 over SR-20 / N.T.P. carry?

About 2,430 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is FAP 20 over SR-20 / N.T.P.?

The structure is 82 ft (25.1 m) long with a longest span of 75 ft (22.9 m) and a deck 34 ft wide.

Who owns FAP 20 over SR-20 / N.T.P.?

It is owned by the State Highway Agency.