US Bridges

S.E.Horn RD over Castile CR

FairPosted for load

Buchanan County, Missouri · S 17 T 55 N R 33 W · Structure no. 22459

Built
1900
125 years old, rebuilt 1984
Condition
Fair
inspected January 2023
Type
Girder and Floorbeam System
Steel
Length
71 ft
1 main span
Daily traffic
87
2024 count
Owner
County
County Highway Agency

About this bridge

S.E.Horn RD over Castile CR is a steel girder and floorbeam system carrying S.E.Horn RD over Castile CR in Buchanan County, Missouri. It was built in 1900 and reconstructed in 1984, so it is 125 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 87 vehicles a day, roughly 10% of them trucks, projected to reach 100 by 2044. The structure is 71 ft (21.6 m) long and 18 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesS.E.Horn RD
CrossesCastile CR
LocationS 17 T 55 N R 33 W
RouteCounty Highway 357
CountyBuchanan County
StateMissouri
Coordinates39.58136, -94.6368
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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.7 US tons
Inventory rating14.9 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckWood or timber
Main spans1
Design loadOther
Structure length71 ft (21.6 m)
Longest span69 ft (21 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic87 (2024)
Projected traffic100 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$370,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S.E.Horn RD over Castile CR built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1984.

What condition is S.E.Horn RD over 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 2023.

How much traffic does S.E.Horn RD over Castile CR carry?

About 87 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is S.E.Horn RD over Castile CR?

The structure is 71 ft (21.6 m) long with a longest span of 69 ft (21 m) and a deck 18 ft wide.

Who owns S.E.Horn RD over Castile CR?

It is owned by the County Highway Agency.