US Bridges

NW Bethany Ch RD over Br of Castile CR

Poor

Clinton County, Missouri · S 22 T 56 N R 32 W · Structure no. 22712

Built
1989
36 years old
Condition
Poor
inspected December 2024
Type
Culvert
Steel
Length
21 ft
2 main spans
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

NW Bethany Ch RD over Br of Castile CR is a steel culvert carrying NW Bethany Ch RD over Br of Castile CR in Clinton County, Missouri. It was built in 1989, so it is 36 years old, younger 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.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2043. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNW Bethany Ch RD
CrossesBr of Castile CR
LocationS 22 T 56 N R 32 W
RouteCounty Highway 370
CountyClinton County
StateMissouri
Coordinates39.64776, -94.48927
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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2024
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic40 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$153,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NW Bethany Ch RD over Br of Castile CR built?

It was built in 1989, making it 36 years old in 2025.

What condition is NW Bethany Ch RD over Br of Castile 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 December 2024.

How much traffic does NW Bethany Ch RD over Br of Castile CR carry?

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

How long is NW Bethany Ch RD over Br of Castile CR?

The structure is 21 ft (6.4 m) long with a longest span of 9 ft (2.7 m).

Who owns NW Bethany Ch RD over Br of Castile CR?

It is owned by the County Highway Agency.