US Bridges

Nfa C424 over Fall Creek

Fair

Sullivan County, Tennessee · S of SR126-N of SR357-I81 · Structure no. 820C4240001

Built
1987
38 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
44 ft
4 main spans
Daily traffic
250
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa C424 over Fall Creek is a concrete continuous culvert carrying Nfa C424 over Fall Creek in Sullivan County, Tennessee. It was built in 1987, so it is 38 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 250 vehicles a day, roughly 2% of them trucks, projected to reach 400 by 2042. The structure is 44 ft (13.4 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa C424
CrossesFall Creek
LocationS of SR126-N of SR357-I81
RouteCounty Highway 424
CountySullivan County
StateTennessee
Coordinates36.53907, -82.43822
Functional classUrban Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span10 ft (3 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2020)
Projected traffic400 by 2042
Trucks2%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$119,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa C424 over Fall Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Nfa C424 over Fall 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 March 2024.

How much traffic does Nfa C424 over Fall Creek carry?

About 250 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa C424 over Fall Creek?

The structure is 44 ft (13.4 m) long with a longest span of 10 ft (3 m) and a deck 26 ft wide.

Who owns Nfa C424 over Fall Creek?

It is owned by the County Highway Agency.