US Bridges

Sterling Ave over Rock CR

FairPosted for load

Jackson County, Missouri · S 9 T 49 N R 32 W · Structure no. 19164

Built
1982
43 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
116 ft
3 main spans
Daily traffic
11,900
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sterling Ave over Rock CR is a prestressed concrete tee beam carrying Sterling Ave over Rock CR in Jackson County, Missouri. It was built in 1982, so it is 43 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. Its operating status is: posted for load restriction.

It carries about 11,900 vehicles a day, roughly 15% of them trucks, projected to reach 15,470 by 2044. The structure is 116 ft (35.4 m) long and 66 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSterling Ave
CrossesRock CR
LocationS 9 T 49 N R 32 W
RouteCity Street 0
CountyJackson County
StateMissouri
Coordinates39.07427, -94.44638
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length116 ft (35.4 m)
Longest span52 ft (15.8 m)
Deck width66 ft (20.2 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,900 (2024)
Projected traffic15,470 by 2044
Trucks15%
Lanes on structure4
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 Sterling Ave over Rock CR built?

It was built in 1982, making it 43 years old in 2025.

What condition is Sterling Ave 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 February 2023.

How much traffic does Sterling Ave over Rock CR carry?

About 11,900 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is Sterling Ave over Rock CR?

The structure is 116 ft (35.4 m) long with a longest span of 52 ft (15.8 m) and a deck 66 ft wide.

Who owns Sterling Ave over Rock CR?

It is owned by the City or Municipal Highway Agency.