US Bridges

Nfa 1242 (sa 1505) over Trail Fork Big Creek

Fair

Cocke County, Tennessee · W of SR107-1.5 S Del Rio · Structure no. 15S24850021

Built
1988
37 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete Continuous
Length
37 ft
3 main spans
Daily traffic
458
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1242 (sa 1505) over Trail Fork Big Creek is a concrete continuous culvert carrying Nfa 1242 (sa 1505) over Trail Fork Big Creek in Cocke County, Tennessee. It was built in 1988, so it is 37 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 458 vehicles a day, roughly 3% of them trucks, projected to reach 733 by 2042. The structure is 37 ft (11.4 m) long and 32 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesNfa 1242 (sa 1505)
CrossesTrail Fork Big Creek
LocationW of SR107-1.5 S Del Rio
RouteCounty Highway 1242
CountyCocke County
StateTennessee
Coordinates35.87983, -83.01089
Functional classRural Minor Collector

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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length37 ft (11.4 m)
Longest span12 ft (3.7 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic458 (2021)
Projected traffic733 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Nfa 1242 (sa 1505) over Trail Fork Big Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Nfa 1242 (sa 1505) over Trail Fork Big 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 November 2024.

How much traffic does Nfa 1242 (sa 1505) over Trail Fork Big Creek carry?

About 458 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1242 (sa 1505) over Trail Fork Big Creek?

The structure is 37 ft (11.4 m) long with a longest span of 12 ft (3.7 m) and a deck 32 ft wide.

Who owns Nfa 1242 (sa 1505) over Trail Fork Big Creek?

It is owned by the County Highway Agency.