US Bridges

Swan Cave RD over Swan CR

Fair

Christian County, Missouri · S 27 T 26 N R 19 W · Structure no. 24207

Built
1994
31 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
30
2025 count
Owner
County
County Highway Agency

About this bridge

Swan Cave RD over Swan CR is a concrete continuous slab carrying Swan Cave RD over Swan CR in Christian 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 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 60 by 2045. The structure is 23 ft (7 m) long and 12 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSwan Cave RD
CrossesSwan CR
LocationS 27 T 26 N R 19 W
RouteCounty Highway 464
CountyChristian County
StateMissouri
Coordinates36.92206, -93.00201
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.
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
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.8 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2025)
Projected traffic60 by 2045
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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$162,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Swan Cave RD over Swan CR built?

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

What condition is Swan Cave RD over Swan 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 Swan Cave RD over Swan CR carry?

About 30 vehicles per day (2025 count), of which roughly 10% are trucks.

How long is Swan Cave RD over Swan CR?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m) and a deck 12 ft wide.

Who owns Swan Cave RD over Swan CR?

It is owned by the County Highway Agency.