US Bridges

FAS 170 over Racoon Valley Rd. / I75

Fair

Knox County, Tennessee · 1.4 M NW of Anderson Cl · Structure no. 47I00750067

Built
1960
65 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
234 ft
4 main spans
Daily traffic
3,767
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 170 over Racoon Valley Rd. / I75 is a prestressed concrete stringer/multi-beam or girder carrying FAS 170 over Racoon Valley Rd. / I75 in Knox County, Tennessee. It was built in 1960, so it is 65 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 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 3,767 vehicles a day, roughly 4% of them trucks, projected to reach 6,382 by 2041. The structure is 234 ft (71.2 m) long and 50 ft wide.

CarriesFAS 170
CrossesRacoon Valley Rd. / I75
Location1.4 M NW of Anderson Cl
RouteState Highway 170
Coordinates36.10745, -84.02383
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
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 rating40.3 US tons
Inventory rating31.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length234 ft (71.2 m)
Longest span68 ft (20.8 m)
Deck width50 ft (15.2 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,767 (2021)
Projected traffic6,382 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAS 170 over Racoon Valley Rd. / I75 built?

It was built in 1960, making it 65 years old in 2025.

What condition is FAS 170 over Racoon Valley Rd. / I75 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 2025.

How much traffic does FAS 170 over Racoon Valley Rd. / I75 carry?

About 3,767 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAS 170 over Racoon Valley Rd. / I75?

The structure is 234 ft (71.2 m) long with a longest span of 68 ft (20.8 m) and a deck 50 ft wide.

Who owns FAS 170 over Racoon Valley Rd. / I75?

It is owned by the State Highway Agency.