US Bridges

Mo 87 S over Petite Saline CR

Fair

Cooper County, Missouri · S 17 T 48 N R 16 W · Structure no. 3770

Built
1990
35 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
298 ft
9 main spans
Daily traffic
1,949
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 87 S over Petite Saline CR is a prestressed concrete continuous tee beam carrying Mo 87 S over Petite Saline CR in Cooper County, Missouri. It was built in 1990, so it is 35 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 5 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 1,949 vehicles a day, roughly 20% of them trucks, projected to reach 3,021 by 2044. The structure is 298 ft (90.8 m) long and 35 ft wide. If it were closed, the detour would be 28 mi (45 km).

Location

Open in Google Maps
CarriesMo 87 S
CrossesPetite Saline CR
LocationS 17 T 48 N R 16 W
RouteState Highway 87
CountyCooper County
StateMissouri
Coordinates38.91894, -92.68663
Functional classRural 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating44.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length298 ft (90.8 m)
Longest span34 ft (10.3 m)
Deck width35 ft (10.8 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,949 (2024)
Projected traffic3,021 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 87 S over Petite Saline CR built?

It was built in 1990, making it 35 years old in 2025.

What condition is Mo 87 S over Petite Saline 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 July 2023.

How much traffic does Mo 87 S over Petite Saline CR carry?

About 1,949 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is Mo 87 S over Petite Saline CR?

The structure is 298 ft (90.8 m) long with a longest span of 34 ft (10.3 m) and a deck 35 ft wide.

Who owns Mo 87 S over Petite Saline CR?

It is owned by the State Highway Agency.