US Bridges

FAS 166 over Richland Creek

FairPosted for load

Giles County, Tennessee · 2.7 MI N of SR 15 · Structure no. 28S62360003

Built
1957
68 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Concrete Continuous
Length
694 ft
22 main spans
Daily traffic
2,320
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 166 over Richland Creek is a concrete continuous tee beam carrying FAS 166 over Richland Creek in Giles County, Tennessee. It was built in 1957, so it is 68 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. Its operating status is: posted for load restriction.

It carries about 2,320 vehicles a day, roughly 3% of them trucks, projected to reach 3,670 by 2042. The structure is 694 ft (211.4 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFAS 166
CrossesRichland Creek
Location2.7 MI N of SR 15
RouteState Highway 166
CountyGiles County
StateTennessee
Coordinates35.251, -87.08545
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.7 US tons
Inventory rating17.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans22
Design loadHS 20
Structure length694 ft (211.4 m)
Longest span60 ft (18.3 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,320 (2021)
Projected traffic3,670 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$5.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 166 over Richland Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is FAS 166 over Richland 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 January 2024.

How much traffic does FAS 166 over Richland Creek carry?

About 2,320 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is FAS 166 over Richland Creek?

The structure is 694 ft (211.4 m) long with a longest span of 60 ft (18.3 m) and a deck 29 ft wide.

Who owns FAS 166 over Richland Creek?

It is owned by the State Highway Agency.