US Bridges

Is 470 W over Cst NW Main ST UP RR

Fair

Jackson County, Missouri · S 36 T 48 N R 32 W · Structure no. 1798

Built
1979
46 years old, rebuilt 2009
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
206 ft
4 main spans
Daily traffic
37,698
2024 count
Owner
State
State Highway Agency

About this bridge

Is 470 W over Cst NW Main ST UP RR is a steel continuous stringer/multi-beam or girder carrying Is 470 W over Cst NW Main ST UP RR in Jackson County, Missouri. It was built in 1979 and reconstructed in 2009, so it is 46 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 37,698 vehicles a day, roughly 6% of them trucks, projected to reach 50,892 by 2044. The structure is 206 ft (62.8 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIs 470 W
CrossesCst NW Main ST UP RR
LocationS 36 T 48 N R 32 W
RouteInterstate 470
CountyJackson County
StateMissouri
Coordinates38.93956, -94.39467
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating45.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length206 ft (62.8 m)
Longest span58 ft (17.7 m)
Deck width54 ft (16.5 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,698 (2024)
Projected traffic50,892 by 2044
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 470 W over Cst NW Main ST UP RR built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2009.

What condition is Is 470 W over Cst NW Main ST UP 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 October 2023.

How much traffic does Is 470 W over Cst NW Main ST UP RR carry?

About 37,698 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Is 470 W over Cst NW Main ST UP RR?

The structure is 206 ft (62.8 m) long with a longest span of 58 ft (17.7 m) and a deck 54 ft wide.

Who owns Is 470 W over Cst NW Main ST UP RR?

It is owned by the State Highway Agency.