US Bridges

FAU 3984 over Branch

Good

Washington County, Tennessee · SW of Johnson City · Structure no. 900A0700001

Built
1999
26 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete Continuous
Length
45 ft
2 main spans
Daily traffic
8,844
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 3984 over Branch is a concrete continuous culvert carrying FAU 3984 over Branch in Washington County, Tennessee. It was built in 1999, so it is 26 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,844 vehicles a day, roughly 4% of them trucks, projected to reach 14,150 by 2042. The structure is 45 ft (13.7 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFAU 3984
CrossesBranch
LocationSW of Johnson City
RouteCity Street 3984
Coordinates36.29054, -82.38825
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
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
DeckNot applicable
Main spans2
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span21 ft (6.4 m)
Deck width50 ft (15.2 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,844 (2021)
Projected traffic14,150 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 3984 over Branch built?

It was built in 1999, making it 26 years old in 2025.

What condition is FAU 3984 over Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does FAU 3984 over Branch carry?

About 8,844 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAU 3984 over Branch?

The structure is 45 ft (13.7 m) long with a longest span of 21 ft (6.4 m) and a deck 50 ft wide.

Who owns FAU 3984 over Branch?

It is owned by the City or Municipal Highway Agency.