US Bridges

FAS 104 over Slough

Fair

Dyer County, Tennessee · 1.1 M W JCT SR20&SR182 · Structure no. 23SR0200011

Built
1997
28 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
50 ft
3 main spans
Daily traffic
483
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 104 over Slough is a concrete continuous culvert carrying FAS 104 over Slough in Dyer County, Tennessee. It was built in 1997, so it is 28 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 483 vehicles a day, roughly 4% of them trucks, projected to reach 752 by 2040. The structure is 50 ft (15.2 m) long and 38 ft wide. If it were closed, the detour would be 52.8 mi (85 km).

Location

Open in Google Maps
CarriesFAS 104
CrossesSlough
Location1.1 M W JCT SR20&SR182
RouteState Highway 104
CountyDyer County
StateTennessee
Coordinates36.04094, -89.52575
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span15 ft (4.6 m)
Deck width38 ft (11.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic483 (2021)
Projected traffic752 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed52.8 mi (85 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 104 over Slough built?

It was built in 1997, making it 28 years old in 2025.

What condition is FAS 104 over Slough 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 October 2023.

How much traffic does FAS 104 over Slough carry?

About 483 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAS 104 over Slough?

The structure is 50 ft (15.2 m) long with a longest span of 15 ft (4.6 m) and a deck 38 ft wide.

Who owns FAS 104 over Slough?

It is owned by the State Highway Agency.