US Bridges

Maywood ST over Rock CR

Fair

Jackson County, Missouri · S 9 T 49 N R 32 W · Structure no. 30771

Built
2003
22 years old
Condition
Fair
inspected January 2023
Type
Slab
Concrete Continuous
Length
87 ft
4 main spans
Daily traffic
5,000
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Maywood ST over Rock CR is a concrete continuous slab carrying Maywood ST over Rock CR in Jackson County, Missouri. It was built in 2003, so it is 22 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 5,000 vehicles a day, roughly 10% of them trucks, projected to reach 6,500 by 2044. The structure is 87 ft (26.5 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesMaywood ST
CrossesRock CR
LocationS 9 T 49 N R 32 W
RouteCity Street 0
CountyJackson County
StateMissouri
Coordinates39.08315, -94.45777
Functional classUrban Collector

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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating32.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length87 ft (26.5 m)
Longest span20 ft (6.1 m)
Deck width39 ft (11.8 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2024)
Projected traffic6,500 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Maywood ST over Rock CR built?

It was built in 2003, making it 22 years old in 2025.

What condition is Maywood ST over Rock 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 Maywood ST over Rock CR carry?

About 5,000 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Maywood ST over Rock CR?

The structure is 87 ft (26.5 m) long with a longest span of 20 ft (6.1 m) and a deck 39 ft wide.

Who owns Maywood ST over Rock CR?

It is owned by the City or Municipal Highway Agency.