US Bridges

Nfa A118 over Rocky Creek

Good

Trousdale County, Tennessee · 1.5 MI E of Sumner Co. · Structure no. 850A1180001

Built
1998
27 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete Continuous
Length
69 ft
4 main spans
Daily traffic
40
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A118 over Rocky Creek is a concrete continuous culvert carrying Nfa A118 over Rocky Creek in Trousdale 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 40 vehicles a day, roughly 5% of them trucks, projected to reach 64 by 2041. The structure is 69 ft (21 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNfa A118
CrossesRocky Creek
Location1.5 MI E of Sumner Co.
RouteCounty Highway 118
Coordinates36.38937, -86.25135
Functional classRural Local

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 inspectionFebruary 2023
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 adequacy6: Equal to 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 spans4
Design loadHS 20
Structure length69 ft (21 m)
Longest span15 ft (4.6 m)
Deck width27 ft (8.3 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2020)
Projected traffic64 by 2041
Trucks5%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A118 over Rocky Creek built?

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

What condition is Nfa A118 over Rocky 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 February 2023.

How much traffic does Nfa A118 over Rocky Creek carry?

About 40 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Nfa A118 over Rocky Creek?

The structure is 69 ft (21 m) long with a longest span of 15 ft (4.6 m) and a deck 27 ft wide.

Who owns Nfa A118 over Rocky Creek?

It is owned by the County Highway Agency.