US Bridges

Nfa 986 (sa 7521) over Rocky Fork Creek

Good

Rutherford County, Tennessee · 3.6 MI SW JCT I24&SR266 · Structure no. 75F00400001

Built
1972
53 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete Continuous
Length
45 ft
3 main spans
Daily traffic
2,349
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 986 (sa 7521) over Rocky Fork Creek is a concrete continuous culvert carrying Nfa 986 (sa 7521) over Rocky Fork Creek in Rutherford County, Tennessee. It was built in 1972, so it is 53 years old, older 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 2,349 vehicles a day, roughly 3% of them trucks, projected to reach 3,758 by 2042. The structure is 45 ft (13.7 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa 986 (sa 7521)
CrossesRocky Fork Creek
Location3.6 MI SW JCT I24&SR266
RouteCounty Highway 986
CountyRutherford County
StateTennessee
Coordinates35.92667, -86.58586
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span12 ft (3.7 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,349 (2021)
Projected traffic3,758 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 986 (sa 7521) over Rocky Fork Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Nfa 986 (sa 7521) over Rocky Fork 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 July 2024.

How much traffic does Nfa 986 (sa 7521) over Rocky Fork Creek carry?

About 2,349 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 986 (sa 7521) over Rocky Fork Creek?

The structure is 45 ft (13.7 m) long with a longest span of 12 ft (3.7 m) and a deck 27 ft wide.

Who owns Nfa 986 (sa 7521) over Rocky Fork Creek?

It is owned by the County Highway Agency.