US Bridges

NW Thompson RD over Br of Castile CR

Good

Clinton County, Missouri · S 26 T 57 N R 32 W · Structure no. 35636

Built
2017
8 years old
Condition
Good
inspected December 2024
Type
Culvert
Steel
Length
31 ft
2 main spans
Daily traffic
15
2023 count
Owner
County
County Highway Agency

About this bridge

NW Thompson RD over Br of Castile CR is a steel culvert carrying NW Thompson RD over Br of Castile CR in Clinton County, Missouri. It was built in 2017, so it is 8 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2043. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNW Thompson RD
CrossesBr of Castile CR
LocationS 26 T 57 N R 32 W
RouteCounty Highway 0
Coordinates39.72411, -94.46983
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert9 ExcellentNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2023)
Projected traffic17 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 NW Thompson RD over Br of Castile CR built?

It was built in 2017, making it 8 years old in 2025.

What condition is NW Thompson RD over Br of Castile CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

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

About 15 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is NW Thompson RD over Br of Castile CR?

The structure is 31 ft (9.4 m) long with a longest span of 12 ft (3.7 m).

Who owns NW Thompson RD over Br of Castile CR?

It is owned by the County Highway Agency.