Mo 18 E over Miami CR

Fair

Bates County, Missouri · S 29 T 42 N R 33 W · Structure no. 7884

Built: 1955; 70 years old
Condition: Fair; inspected March 2024
Type: Culvert; Concrete Continuous
Length: 25 ft; 2 main spans
Daily traffic: 616; 2024 count
Owner: State; State Highway Agency

About this bridge

Mo 18 E over Miami CR is a concrete continuous culvert carrying Mo 18 E over Miami CR in Bates County, Missouri. It was built in 1955, so it is 70 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 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 616 vehicles a day, roughly 14% of them trucks, projected to reach 832 by 2044. The structure is 25 ft (7.5 m) long and 28 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

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CarriesMo 18 E

CrossesMiami CR

LocationS 29 T 42 N R 33 W

RouteState Highway 18

CountyBates County

StateMissouri

Coordinates38.41612, -94.58745

Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Channel and channel protection	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionMarch 2024

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 adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating50.6 US tons

Inventory rating30.8 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans2

Design loadH 10

Structure length25 ft (7.5 m)

Longest span12 ft (3.7 m)

Deck width28 ft (8.5 m)

Roadway width26 ft (7.9 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic616 (2024)

Projected traffic832 by 2044

Trucks14%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed36 mi (58 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 18 E over Miami CR built?

It was built in 1955, making it 70 years old in 2025.

What condition is Mo 18 E over Miami 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 March 2024.

How much traffic does Mo 18 E over Miami CR carry?

About 616 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Mo 18 E over Miami CR?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m) and a deck 28 ft wide.

Who owns Mo 18 E over Miami CR?

It is owned by the State Highway Agency.