US Bridges

Rt B S over Branch Casto CR

Fair

Douglas County, Missouri · S 27 T 27 N R 16 W · Structure no. 9427

Built
1940
85 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete Continuous
Length
41 ft
4 main spans
Daily traffic
518
2024 count
Owner
State
State Highway Agency

About this bridge

Rt B S over Branch Casto CR is a concrete continuous culvert carrying Rt B S over Branch Casto CR in Douglas 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 fair condition with a lowest component rating of 5 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 518 vehicles a day, roughly 5% of them trucks, projected to reach 803 by 2044. The structure is 41 ft (12.6 m) long and 22 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesRt B S
CrossesBranch Casto CR
LocationS 27 T 27 N R 16 W
RouteState Highway 0B
CountyDouglas County
StateMissouri
Coordinates37.00259, -92.66932
Functional classRural Minor Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating26.8 US tons
Inventory rating15.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadH 10
Structure length41 ft (12.6 m)
Longest span10 ft (3 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic518 (2024)
Projected traffic803 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt B S over Branch Casto CR built?

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

What condition is Rt B S over Branch Casto 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 February 2025.

How much traffic does Rt B S over Branch Casto CR carry?

About 518 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Rt B S over Branch Casto CR?

The structure is 41 ft (12.6 m) long with a longest span of 10 ft (3 m) and a deck 22 ft wide.

Who owns Rt B S over Branch Casto CR?

It is owned by the State Highway Agency.