US Bridges

NW Thompson RD over Br of Castile CR

Fair

Clinton County, Missouri · S 2 T 56 N R 32 W · Structure no. 13114

Built
1994
31 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

NW Thompson RD over Br of Castile CR is a steel stringer/multi-beam or girder carrying NW Thompson RD over Br of Castile CR in Clinton County, Missouri. It was built in 1994, so it is 31 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 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 58 by 2043. The structure is 54 ft (16.5 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNW Thompson RD
CrossesBr of Castile CR
LocationS 2 T 56 N R 32 W
RouteCounty Highway 29
CountyClinton County
StateMissouri
Coordinates39.69935, -94.47043
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating24.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length54 ft (16.5 m)
Longest span54 ft (16.5 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic58 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 NW Thompson RD over Br of Castile CR built?

It was built in 1994, making it 31 years old in 2025.

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

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

About 50 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 54 ft (16.5 m) long with a longest span of 54 ft (16.5 m) and a deck 25 ft wide.

Who owns NW Thompson RD over Br of Castile CR?

It is owned by the County Highway Agency.