US Bridges

Chadwick RD over Swan CR

Good

Christian County, Missouri · S 34 T 26 N R 19 W · Structure no. 24240

Built
1990
35 years old
Condition
Good
inspected January 2025
Type
Girder and Floorbeam System
Steel
Length
208 ft
3 main spans
Daily traffic
35
2025 count
Owner
County
County Highway Agency

About this bridge

Chadwick RD over Swan CR is a steel girder and floorbeam system carrying Chadwick RD over Swan CR in Christian County, Missouri. It was built in 1990, so it is 35 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 70 by 2045. The structure is 208 ft (63.4 m) long and 18 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

CarriesChadwick RD
CrossesSwan CR
LocationS 34 T 26 N R 19 W
RouteCounty Highway 467
Coordinates36.90315, -93.00878
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.5 US tons
Inventory rating34.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length208 ft (63.4 m)
Longest span72 ft (21.9 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2025)
Projected traffic70 by 2045
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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 Chadwick RD over Swan CR built?

It was built in 1990, making it 35 years old in 2025.

What condition is Chadwick RD over Swan 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 January 2025.

How much traffic does Chadwick RD over Swan CR carry?

About 35 vehicles per day (2025 count), of which roughly 10% are trucks.

How long is Chadwick RD over Swan CR?

The structure is 208 ft (63.4 m) long with a longest span of 72 ft (21.9 m) and a deck 18 ft wide.

Who owns Chadwick RD over Swan CR?

It is owned by the County Highway Agency.