US Bridges

I75 over I-75 / SR-2

Fair

Hamilton County, Tennessee · Collegedale Exit · Structure no. 33I00750065

Built
2007
18 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
256 ft
2 main spans
Daily traffic
82,555
2021 count
Owner
State
State Highway Agency

About this bridge

I75 over I-75 / SR-2 is a steel continuous stringer/multi-beam or girder carrying I75 over I-75 / SR-2 in Hamilton County, Tennessee. It was built in 2007, so it is 18 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 82,555 vehicles a day, roughly 6% of them trucks, projected to reach 112,208 by 2040. The structure is 256 ft (78 m) long and 132 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI75
CrossesI-75 / SR-2
LocationCollegedale Exit
RouteInterstate 75
Coordinates35.08603, -85.0683
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadHS 20 + Mod
Structure length256 ft (78 m)
Longest span128 ft (39 m)
Deck width132 ft (40.2 m)
Roadway width131 ft (39.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82,555 (2021)
Projected traffic112,208 by 2040
Trucks6%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I75 over I-75 / SR-2 built?

It was built in 2007, making it 18 years old in 2025.

What condition is I75 over I-75 / SR-2 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 July 2024.

How much traffic does I75 over I-75 / SR-2 carry?

About 82,555 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I75 over I-75 / SR-2?

The structure is 256 ft (78 m) long with a longest span of 128 ft (39 m) and a deck 132 ft wide.

Who owns I75 over I-75 / SR-2?

It is owned by the State Highway Agency.