US Bridges

Mo 89 S over Indian CR

Fair

Osage County, Missouri · S 35 T 42 N R 8 W · Structure no. 8790

Built
1932
93 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
2,822
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 89 S over Indian CR is a concrete continuous culvert carrying Mo 89 S over Indian CR in Osage County, Missouri. It was built in 1932, so it is 93 years old, older 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 2,822 vehicles a day, roughly 9% of them trucks, projected to reach 4,939 by 2044. The structure is 24 ft (7.2 m) long and 22 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesMo 89 S
CrossesIndian CR
LocationS 35 T 42 N R 8 W
RouteState Highway 89
Coordinates38.3379, -91.78259
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating25.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length24 ft (7.2 m)
Longest span10 ft (3 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,822 (2024)
Projected traffic4,939 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$450,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 89 S over Indian CR built?

It was built in 1932, making it 93 years old in 2025.

What condition is Mo 89 S over Indian 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 December 2024.

How much traffic does Mo 89 S over Indian CR carry?

About 2,822 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Mo 89 S over Indian CR?

The structure is 24 ft (7.2 m) long with a longest span of 10 ft (3 m) and a deck 22 ft wide.

Who owns Mo 89 S over Indian CR?

It is owned by the State Highway Agency.