US Bridges

FAU 3979 over Brushy Creek

FairPosted for load

Washington County, Tennessee · In Johnson City · Structure no. 90039790001

Built
1950
75 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
36 ft
2 main spans
Daily traffic
7,844
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 3979 over Brushy Creek is a concrete slab carrying FAU 3979 over Brushy Creek in Washington County, Tennessee. It was built in 1950, so it is 75 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 7,844 vehicles a day, roughly 4% of them trucks, projected to reach 12,550 by 2042. The structure is 36 ft (11 m) long and 58 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFAU 3979
CrossesBrushy Creek
LocationIn Johnson City
RouteCity Street 3979
CountyWashington County
StateTennessee
Coordinates36.33127, -82.33918
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length36 ft (11 m)
Longest span16 ft (4.9 m)
Deck width58 ft (17.8 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,844 (2021)
Projected traffic12,550 by 2042
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$194,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 3979 over Brushy Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is FAU 3979 over Brushy 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 June 2024.

How much traffic does FAU 3979 over Brushy Creek carry?

About 7,844 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAU 3979 over Brushy Creek?

The structure is 36 ft (11 m) long with a longest span of 16 ft (4.9 m) and a deck 58 ft wide.

Who owns FAU 3979 over Brushy Creek?

It is owned by the City or Municipal Highway Agency.