US Bridges

FAU 3903 over Rock Springs Branch

Good

Sullivan County, Tennessee · In Kingsport · Structure no. 82038930005

Built
1983
42 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete Continuous
Length
33 ft
3 main spans
Daily traffic
12,213
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 3903 over Rock Springs Branch is a concrete continuous culvert carrying FAU 3903 over Rock Springs Branch in Sullivan County, Tennessee. It was built in 1983, so it is 42 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 12,213 vehicles a day, roughly 4% of them trucks, projected to reach 10,598 by 2042. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFAU 3903
CrossesRock Springs Branch
LocationIn Kingsport
RouteCity Street 3903
Coordinates36.48872, -82.52783
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,213 (2021)
Projected traffic10,598 by 2042
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 3903 over Rock Springs Branch built?

It was built in 1983, making it 42 years old in 2025.

What condition is FAU 3903 over Rock Springs 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 February 2024.

How much traffic does FAU 3903 over Rock Springs Branch carry?

About 12,213 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAU 3903 over Rock Springs Branch?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns FAU 3903 over Rock Springs Branch?

It is owned by the City or Municipal Highway Agency.