US Bridges

Blue Bird RD over Trib Petite Saline

Fair

Cooper County, Missouri · S 15 T 47 N R 18 W · Structure no. 33423

Built
2008
17 years old
Condition
Fair
inspected December 2023
Type
Slab
Concrete Continuous
Length
70 ft
3 main spans
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

Blue Bird RD over Trib Petite Saline is a concrete continuous slab carrying Blue Bird RD over Trib Petite Saline in Cooper County, Missouri. It was built in 2008, so it is 17 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 13 by 2044. The structure is 70 ft (21.4 m) long and 21 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesBlue Bird RD
CrossesTrib Petite Saline
LocationS 15 T 47 N R 18 W
RouteCounty Highway 163
CountyCooper County
StateMissouri
Coordinates38.83231, -92.8823
Functional classRural 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment6: Equal to present minimum criteria
Operating rating73.4 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length70 ft (21.4 m)
Longest span22 ft (6.7 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic13 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Blue Bird RD over Trib Petite Saline built?

It was built in 2008, making it 17 years old in 2025.

What condition is Blue Bird RD over Trib Petite Saline 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 December 2023.

How much traffic does Blue Bird RD over Trib Petite Saline carry?

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

How long is Blue Bird RD over Trib Petite Saline?

The structure is 70 ft (21.4 m) long with a longest span of 22 ft (6.7 m) and a deck 21 ft wide.

Who owns Blue Bird RD over Trib Petite Saline?

It is owned by the County Highway Agency.