US Bridges

FAS 75 over Blackley Creek

Fair

Washington County, Tennessee · 2.3 M SW SR75&SR81 · Structure no. 90S23820003

Built
1992
33 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
69 ft
3 main spans
Daily traffic
2,079
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 75 over Blackley Creek is a concrete continuous culvert carrying FAS 75 over Blackley Creek in Washington County, Tennessee. It was built in 1992, so it is 33 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 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 2,079 vehicles a day, roughly 5% of them trucks, projected to reach 2,978 by 2042. The structure is 69 ft (21.1 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFAS 75
CrossesBlackley Creek
Location2.3 M SW SR75&SR81
RouteCounty Highway 75
CountyWashington County
StateTennessee
Coordinates36.29768, -82.57587
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length69 ft (21.1 m)
Longest span21 ft (6.4 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,079 (2021)
Projected traffic2,978 by 2042
Trucks5%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 75 over Blackley Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is FAS 75 over Blackley 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 October 2023.

How much traffic does FAS 75 over Blackley Creek carry?

About 2,079 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAS 75 over Blackley Creek?

The structure is 69 ft (21.1 m) long with a longest span of 21 ft (6.4 m) and a deck 34 ft wide.

Who owns FAS 75 over Blackley Creek?

It is owned by the State Highway Agency.