US Bridges

FAP 366 over SR 366 / W Tenn Railroad

Good

Gibson County, Tennessee · In Humbolt · Structure no. 27SR3660005

Built
1983
42 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
146 ft
3 main spans
Daily traffic
5,432
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 366 over SR 366 / W Tenn Railroad is a prestressed concrete box beam or girders - single or spread carrying FAP 366 over SR 366 / W Tenn Railroad in Gibson County, Tennessee. It was built in 1983, so it is 42 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,432 vehicles a day, roughly 9% of them trucks, projected to reach 8,691 by 2042. The structure is 146 ft (44.5 m) long and 50 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFAP 366
CrossesSR 366 / W Tenn Railroad
LocationIn Humbolt
RouteState Highway 366
Coordinates35.83667, -88.92561
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating37.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length146 ft (44.5 m)
Longest span50 ft (15.2 m)
Deck width50 ft (15.2 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,432 (2021)
Projected traffic8,691 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAP 366 over SR 366 / W Tenn Railroad built?

It was built in 1983, making it 42 years old in 2025.

What condition is FAP 366 over SR 366 / W Tenn Railroad in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does FAP 366 over SR 366 / W Tenn Railroad carry?

About 5,432 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAP 366 over SR 366 / W Tenn Railroad?

The structure is 146 ft (44.5 m) long with a longest span of 50 ft (15.2 m) and a deck 50 ft wide.

Who owns FAP 366 over SR 366 / W Tenn Railroad?

It is owned by the State Highway Agency.