US Bridges

County RD 143 over Troublesome CR

PoorPosted for load

Marion County, Missouri · S 23 T 59 N R 7 W · Structure no. 13608

Built
1910
115 years old
Condition
Poor
inspected February 2023
Type
Truss - Thru
Steel
Length
86 ft
1 main span
Daily traffic
25
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 143 over Troublesome CR is a steel truss - thru carrying County RD 143 over Troublesome CR in Marion County, Missouri. It was built in 1910, so it is 115 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 31 by 2043. The structure is 86 ft (26.2 m) long and 12 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesCounty RD 143
CrossesTroublesome CR
LocationS 23 T 59 N R 7 W
RouteCounty Highway 43
CountyMarion County
StateMissouri
Coordinates39.89942, -91.64458
Functional classRural Local

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating10.9 US tons
Inventory rating7.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadOther
Structure length86 ft (26.2 m)
Longest span85 ft (25.9 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic31 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$638,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 143 over Troublesome CR built?

It was built in 1910, making it 115 years old in 2025.

What condition is County RD 143 over Troublesome 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 February 2023.

How much traffic does County RD 143 over Troublesome CR carry?

About 25 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 143 over Troublesome CR?

The structure is 86 ft (26.2 m) long with a longest span of 85 ft (25.9 m) and a deck 12 ft wide.

Who owns County RD 143 over Troublesome CR?

It is owned by the County Highway Agency.