US Bridges

Mo 18 E over Plum Br

Poor

Bates County, Missouri · S 1 T 41 N R 33 W · Structure no. 9148

Built
1935
90 years old
Condition
Poor
inspected March 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
425
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 18 E over Plum Br is a concrete continuous culvert carrying Mo 18 E over Plum Br in Bates County, Missouri. It was built in 1935, so it is 90 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 425 vehicles a day, roughly 11% of them trucks, projected to reach 574 by 2044. The structure is 22 ft (6.7 m) long and 29 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesMo 18 E
CrossesPlum Br
LocationS 1 T 41 N R 33 W
RouteState Highway 18
CountyBates County
StateMissouri
Coordinates38.39808, -94.52203
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum 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 length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic425 (2024)
Projected traffic574 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$306,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 18 E over Plum Br built?

It was built in 1935, making it 90 years old in 2025.

What condition is Mo 18 E over Plum Br in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Mo 18 E over Plum Br carry?

About 425 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Mo 18 E over Plum Br?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns Mo 18 E over Plum Br?

It is owned by the State Highway Agency.