US Bridges

NE Douglas ST S over Is 470

Fair

Jackson County, Missouri · S 30 T 48 N R 31 W · Structure no. 1799

Built
1979
46 years old, rebuilt 2017
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
258 ft
4 main spans
Daily traffic
22,953
2024 count
Owner
State
State Highway Agency

About this bridge

NE Douglas ST S over Is 470 is a steel continuous stringer/multi-beam or girder carrying NE Douglas ST S over Is 470 in Jackson County, Missouri. It was built in 1979 and reconstructed in 2017, 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 22,953 vehicles a day, roughly 5% of them trucks, projected to reach 30,987 by 2044. The structure is 258 ft (78.6 m) long and 78 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNE Douglas ST S
CrossesIs 470
LocationS 30 T 48 N R 31 W
RouteCity Street 0
Coordinates38.94451, -94.37824
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.4 US tons
Inventory rating43.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length258 ft (78.6 m)
Longest span88 ft (26.8 m)
Deck width78 ft (23.9 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,953 (2024)
Projected traffic30,987 by 2044
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 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 Douglas ST S over Is 470 built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2017.

What condition is NE Douglas ST S 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 October 2023.

How much traffic does NE Douglas ST S over Is 470 carry?

About 22,953 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is NE Douglas ST S over Is 470?

The structure is 258 ft (78.6 m) long with a longest span of 88 ft (26.8 m) and a deck 78 ft wide.

Who owns NE Douglas ST S over Is 470?

It is owned by the State Highway Agency.