US Bridges

Nfa 4429 over Branch of Sinking Creek

Good

Sullivan County, Tennessee · S. of I81 · Structure no. 82044290005

Built
1998
27 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
154
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 4429 over Branch of Sinking Creek is a concrete continuous culvert carrying Nfa 4429 over Branch of Sinking Creek in Sullivan County, Tennessee. It was built in 1998, so it is 27 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 154 vehicles a day, roughly 3% of them trucks, projected to reach 346 by 2042. The structure is 26 ft (8 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNfa 4429
CrossesBranch of Sinking Creek
LocationS. of I81
RouteCounty Highway 4429
Coordinates36.4483, -82.4991
Functional classUrban Collector

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length26 ft (8 m)
Longest span12 ft (3.7 m)
Deck width31 ft (9.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic154 (2021)
Projected traffic346 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Nfa 4429 over Branch of Sinking Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Nfa 4429 over Branch of Sinking Creek 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 March 2024.

How much traffic does Nfa 4429 over Branch of Sinking Creek carry?

About 154 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 4429 over Branch of Sinking Creek?

The structure is 26 ft (8 m) long with a longest span of 12 ft (3.7 m) and a deck 31 ft wide.

Who owns Nfa 4429 over Branch of Sinking Creek?

It is owned by the County Highway Agency.