US Bridges

I75 over Johns Creek

Fair

Anderson County, Tennessee · 1.0 NW of SR61 · Structure no. 01I00750011

Built
1972
53 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
53,108
2021 count
Owner
State
State Highway Agency

About this bridge

I75 over Johns Creek is a concrete continuous culvert carrying I75 over Johns Creek in Anderson 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 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 53,108 vehicles a day, roughly 6% of them trucks, projected to reach 77,856 by 2041. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI75
CrossesJohns Creek
Location1.0 NW of SR61
RouteInterstate 75
Coordinates36.15653, -84.06934
Functional classRural Principal Arterial - Interstate

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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating28.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length23 ft (7 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,108 (2021)
Projected traffic77,856 by 2041
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$370,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I75 over Johns Creek built?

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

What condition is I75 over Johns 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 2023.

How much traffic does I75 over Johns Creek carry?

About 53,108 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I75 over Johns Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3.1 m).

Who owns I75 over Johns Creek?

It is owned by the State Highway Agency.