US Bridges

Nfa 1118 (sa 2118) over Oakley Creek

Fair

DeKalb County, Tennessee · 2MI South of Smith Co. · Structure no. 21S44280001

Built
1985
40 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
45 ft
3 main spans
Daily traffic
688
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1118 (sa 2118) over Oakley Creek is a concrete continuous culvert carrying Nfa 1118 (sa 2118) over Oakley Creek in DeKalb County, Tennessee. It was built in 1985, so it is 40 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 688 vehicles a day, roughly 3% of them trucks, projected to reach 1,101 by 2042. The structure is 45 ft (13.7 m) long and 26 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesNfa 1118 (sa 2118)
CrossesOakley Creek
Location2MI South of Smith Co.
RouteCounty Highway 1118
CountyDeKalb County
StateTennessee
Coordinates36.09437, -85.94888
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum 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 width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic688 (2021)
Projected traffic1,101 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 1118 (sa 2118) over Oakley Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Nfa 1118 (sa 2118) over Oakley 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 December 2023.

How much traffic does Nfa 1118 (sa 2118) over Oakley Creek carry?

About 688 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1118 (sa 2118) over Oakley Creek?

The structure is 45 ft (13.7 m) long with a longest span of 12 ft (3.7 m) and a deck 26 ft wide.

Who owns Nfa 1118 (sa 2118) over Oakley Creek?

It is owned by the County Highway Agency.