US Bridges

I24 EB over I24EB / A660 & CSX RR

Fair

Hamilton County, Tennessee · .1 M E of I124 JCT · Structure no. 33I00240081

Built
1990
35 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
519 ft
8 main spans
Daily traffic
105,057
2021 count
Owner
State
State Highway Agency

About this bridge

I24 EB over I24EB / A660 & CSX RR is a prestressed concrete continuous box beam or girders - single or spread carrying I24 EB over I24EB / A660 & CSX RR in Hamilton County, Tennessee. It was built in 1990, so it is 35 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 105,057 vehicles a day, roughly 7% of them trucks, projected to reach 168,091 by 2042. The structure is 519 ft (158.2 m) long and 48 ft wide.

Location

Open in Google Maps
CarriesI24 EB
CrossesI24EB / A660 & CSX RR
Location.1 M E of I124 JCT
RouteInterstate 24
CountyHamilton County
StateTennessee
Coordinates35.03202, -85.3175
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating19 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans8
Design loadHS 20
Structure length519 ft (158.2 m)
Longest span93 ft (28.3 m)
Deck width48 ft (14.6 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic105,057 (2021)
Projected traffic168,091 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed—
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 I24 EB over I24EB / A660 & CSX RR built?

It was built in 1990, making it 35 years old in 2025.

What condition is I24 EB over I24EB / A660 & CSX RR 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 September 2024.

How much traffic does I24 EB over I24EB / A660 & CSX RR carry?

About 105,057 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I24 EB over I24EB / A660 & CSX RR?

The structure is 519 ft (158.2 m) long with a longest span of 93 ft (28.3 m) and a deck 48 ft wide.

Who owns I24 EB over I24EB / A660 & CSX RR?

It is owned by the State Highway Agency.