US Bridges

County RD 621 over Brush CR

FairPosted for load

Monroe County, Missouri · S 31 T 54 N R 8 W · Structure no. 17536

Built
1981
44 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
218 ft
3 main spans
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 621 over Brush CR is a prestressed concrete continuous stringer/multi-beam or girder carrying County RD 621 over Brush CR in Monroe County, Missouri. It was built in 1981, so it is 44 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 44 by 2043. The structure is 218 ft (66.4 m) long and 31 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesCounty RD 621
CrossesBrush CR
LocationS 31 T 54 N R 8 W
RouteCounty Highway 155
CountyMonroe County
StateMissouri
Coordinates39.42386, -91.8535
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.7 US tons
Inventory rating18.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length218 ft (66.4 m)
Longest span75 ft (22.9 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic44 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 621 over Brush CR built?

It was built in 1981, making it 44 years old in 2025.

What condition is County RD 621 over Brush 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 June 2024.

How much traffic does County RD 621 over Brush CR carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 621 over Brush CR?

The structure is 218 ft (66.4 m) long with a longest span of 75 ft (22.9 m) and a deck 31 ft wide.

Who owns County RD 621 over Brush CR?

It is owned by the County Highway Agency.