US Bridges

County RD 146 over Branch

Fair

Monroe County, Missouri · S 20 T 55 N R 11 W · Structure no. 22781

Built
1999
26 years old
Condition
Fair
inspected May 2024
Type
Culvert
Steel
Length
20 ft
2 main spans
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 146 over Branch is a steel culvert carrying County RD 146 over Branch in Monroe County, Missouri. It was built in 1999, so it is 26 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.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 44 by 2043. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty RD 146
CrossesBranch
LocationS 20 T 55 N R 11 W
RouteCounty Highway 374
CountyMonroe County
StateMissouri
Coordinates39.53878, -92.15958
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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 closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 146 over Branch built?

It was built in 1999, making it 26 years old in 2025.

What condition is County RD 146 over Branch 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 May 2024.

How much traffic does County RD 146 over Branch carry?

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

How long is County RD 146 over Branch?

The structure is 20 ft (6.1 m) long with a longest span of 8 ft (2.4 m).

Who owns County RD 146 over Branch?

It is owned by the County Highway Agency.