US Bridges

Nfa A138 over John Creek

Fair

Anderson County, Tennessee · 1.2 M SE of I75-SR61 JCT · Structure no. 010A1380003

Built
1970
55 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
990
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A138 over John Creek is a concrete continuous culvert carrying Nfa A138 over John Creek in Anderson County, Tennessee. It was built in 1970, so it is 55 years old, older 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 990 vehicles a day, roughly 2% of them trucks, projected to reach 1,584 by 2041. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesNfa A138
CrossesJohn Creek
Location1.2 M SE of I75-SR61 JCT
RouteCounty Highway 138
CountyAnderson County
StateTennessee
Coordinates36.15574, -84.07028
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic990 (2020)
Projected traffic1,584 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 A138 over John Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A138 over John 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 June 2023.

How much traffic does Nfa A138 over John Creek carry?

About 990 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A138 over John Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns Nfa A138 over John Creek?

It is owned by the County Highway Agency.