US Bridges

Mo 142 E over Myatt CR

PoorPosted for load

Howell County, Missouri · S 4 T 21 N R 7 W · Structure no. 7471

Built
1951
74 years old
Condition
Poor
inspected December 2024
Type
Tee Beam
Concrete
Length
130 ft
4 main spans
Daily traffic
193
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 142 E over Myatt CR is a concrete tee beam carrying Mo 142 E over Myatt CR in Howell County, Missouri. It was built in 1951, so it is 74 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. Its operating status is: posted for load restriction.

It carries about 193 vehicles a day, roughly 10% of them trucks, projected to reach 290 by 2044. The structure is 130 ft (39.6 m) long and 17 ft wide. If it were closed, the detour would be 44.1 mi (71 km).

CarriesMo 142 E
CrossesMyatt CR
LocationS 4 T 21 N R 7 W
RouteState Highway 142
Coordinates36.51781, -91.73859
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating24.8 US tons
Inventory rating14.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 10
Structure length130 ft (39.6 m)
Longest span37 ft (11.4 m)
Deck width17 ft (5.2 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic193 (2024)
Projected traffic290 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.1 mi (71 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$1.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 142 E over Myatt CR built?

It was built in 1951, making it 74 years old in 2025.

What condition is Mo 142 E over Myatt CR 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 December 2024.

How much traffic does Mo 142 E over Myatt CR carry?

About 193 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Mo 142 E over Myatt CR?

The structure is 130 ft (39.6 m) long with a longest span of 37 ft (11.4 m) and a deck 17 ft wide.

Who owns Mo 142 E over Myatt CR?

It is owned by the State Highway Agency.