US Bridges

SW Frost RD over Br of Castile CR

Fair

DeKalb County, Missouri · S 2 T 57 N R 32 W · Structure no. 23133

Built
2000
25 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
5
2024 count
Owner
County
County Highway Agency

About this bridge

SW Frost RD over Br of Castile CR is a steel stringer/multi-beam or girder carrying SW Frost RD over Br of Castile CR in DeKalb County, Missouri. It was built in 2000, so it is 25 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 5 vehicles a day, roughly 10% of them trucks, projected to reach 6 by 2044. The structure is 40 ft (12.2 m) long and 18 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSW Frost RD
CrossesBr of Castile CR
LocationS 2 T 57 N R 32 W
RouteCounty Highway 391
CountyDeKalb County
StateMissouri
Coordinates39.79132, -94.45789
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating32.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width18 ft (5.6 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2024)
Projected traffic6 by 2044
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 SW Frost RD over Br of Castile CR built?

It was built in 2000, making it 25 years old in 2025.

What condition is SW Frost 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 January 2025.

How much traffic does SW Frost RD over Br of Castile CR carry?

About 5 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SW Frost RD over Br of Castile CR?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 18 ft wide.

Who owns SW Frost RD over Br of Castile CR?

It is owned by the County Highway Agency.