US Bridges

County RD 631 over Br of Brush CR

PoorPosted for load

Osage County, Missouri · S 13 T 42 N R 9 W · Structure no. 17208

Built
1940
85 years old
Condition
Poor
inspected April 2023
Type
Girder and Floorbeam System
Steel
Length
32 ft
1 main span
Daily traffic
20
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 631 over Br of Brush CR is a steel girder and floorbeam system carrying County RD 631 over Br of Brush CR in Osage County, Missouri. It was built in 1940, so it is 85 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 3 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 28 by 2043. The structure is 32 ft (9.8 m) long and 14 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesCounty RD 631
CrossesBr of Brush CR
LocationS 13 T 42 N R 9 W
RouteCounty Highway 146
CountyOsage County
StateMissouri
Coordinates38.39394, -91.87906
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating13.9 US tons
Inventory rating7.9 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width14 ft (4.2 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic28 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$311,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 631 over Br of Brush CR built?

It was built in 1940, making it 85 years old in 2025.

What condition is County RD 631 over Br of Brush 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 April 2023.

How much traffic does County RD 631 over Br of Brush CR carry?

About 20 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 631 over Br of Brush CR?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 14 ft wide.

Who owns County RD 631 over Br of Brush CR?

It is owned by the County Highway Agency.