US Bridges

NE Colbern RD E over Is 470

Fair

Jackson County, Missouri · S 29 T 48 N R 31 W · Structure no. 1800

Built
1979
46 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
334 ft
4 main spans
Daily traffic
17,104
2024 count
Owner
State
State Highway Agency

About this bridge

NE Colbern RD E over Is 470 is a steel continuous stringer/multi-beam or girder carrying NE Colbern RD E over Is 470 in Jackson County, Missouri. It was built in 1979, 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 17,104 vehicles a day, roughly 5% of them trucks, projected to reach 23,090 by 2044. The structure is 334 ft (101.8 m) long and 73 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNE Colbern RD E
CrossesIs 470
LocationS 29 T 48 N R 31 W
RouteCity Street 0
CountyJackson County
StateMissouri
Coordinates38.94625, -94.36452
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.4 US tons
Inventory rating41.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length334 ft (101.8 m)
Longest span115 ft (35.1 m)
Deck width73 ft (22.2 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,104 (2024)
Projected traffic23,090 by 2044
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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 NE Colbern RD E over Is 470 built?

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

What condition is NE Colbern RD E over Is 470 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 November 2023.

How much traffic does NE Colbern RD E over Is 470 carry?

About 17,104 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is NE Colbern RD E over Is 470?

The structure is 334 ft (101.8 m) long with a longest span of 115 ft (35.1 m) and a deck 73 ft wide.

Who owns NE Colbern RD E over Is 470?

It is owned by the State Highway Agency.