US Bridges

Nfa A122 over Rock House Fork Creek

Fair

Scott County, Tennessee · 2 M N of Fairview · Structure no. 760A1220003

Built
1988
37 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
54 ft
3 main spans
Daily traffic
150
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A122 over Rock House Fork Creek is a concrete continuous culvert carrying Nfa A122 over Rock House Fork Creek in Scott 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 6 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 150 vehicles a day, roughly 2% of them trucks, projected to reach 240 by 2041. The structure is 54 ft (16.5 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa A122
CrossesRock House Fork Creek
Location2 M N of Fairview
RouteCounty Highway 122
CountyScott County
StateTennessee
Coordinates36.40733, -84.39201
Functional classRural 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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span17 ft (5.3 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2020)
Projected traffic240 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 A122 over Rock House Fork Creek built?

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

What condition is Nfa A122 over Rock House Fork 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 August 2024.

How much traffic does Nfa A122 over Rock House Fork Creek carry?

About 150 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A122 over Rock House Fork Creek?

The structure is 54 ft (16.5 m) long with a longest span of 17 ft (5.3 m) and a deck 26 ft wide.

Who owns Nfa A122 over Rock House Fork Creek?

It is owned by the County Highway Agency.