US Bridges

Western Entrance over Adair CR

Fair

Jackson County, Missouri · S 9 T 50 N R 31 W · Structure no. 30784

Built
2004
21 years old
Condition
Fair
inspected January 2023
Type
Culvert
Concrete Continuous
Length
64 ft
3 main spans
Daily traffic
100
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Western Entrance over Adair CR is a concrete continuous culvert carrying Western Entrance over Adair CR in Jackson County, Missouri. It was built in 2004, so it is 21 years old, younger 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 130 by 2044. The structure is 64 ft (19.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWestern Entrance
CrossesAdair CR
LocationS 9 T 50 N R 31 W
RouteCity Street 0
Coordinates39.03802, -94.35619
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic130 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Western Entrance over Adair CR built?

It was built in 2004, making it 21 years old in 2025.

What condition is Western Entrance over Adair CR 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 January 2023.

How much traffic does Western Entrance over Adair CR carry?

About 100 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Western Entrance over Adair CR?

The structure is 64 ft (19.5 m) long with a longest span of 20 ft (6.1 m).

Who owns Western Entrance over Adair CR?

It is owned by the City or Municipal Highway Agency.