US Bridges

Is 70 E over Norton Ave

Fair

Jackson County, Missouri · S 15 T 49 N R 33 W · Structure no. 273

Built
1960
65 years old, rebuilt 2010
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
283 ft
4 main spans
Daily traffic
50,468
2024 count
Owner
State
State Highway Agency

About this bridge

Is 70 E over Norton Ave is a concrete continuous box beam or girders - single or spread carrying Is 70 E over Norton Ave in Jackson County, Missouri. It was built in 1960 and reconstructed in 2010, so it is 65 years old, older than the Missouri average of 45.1 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 50,468 vehicles a day, roughly 18% of them trucks, projected to reach 68,132 by 2044. The structure is 283 ft (86.3 m) long and 49 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIs 70 E
CrossesNorton Ave
LocationS 15 T 49 N R 33 W
RouteInterstate 70
Coordinates39.07348, -94.53551
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.4 US tons
Inventory rating47.6 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length283 ft (86.3 m)
Longest span86 ft (26.3 m)
Deck width49 ft (15 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50,468 (2024)
Projected traffic68,132 by 2044
Trucks18%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.9 mi (3 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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 70 E over Norton Ave built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2010.

What condition is Is 70 E over Norton Ave 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 Is 70 E over Norton Ave carry?

About 50,468 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is Is 70 E over Norton Ave?

The structure is 283 ft (86.3 m) long with a longest span of 86 ft (26.3 m) and a deck 49 ft wide.

Who owns Is 70 E over Norton Ave?

It is owned by the State Highway Agency.