US Bridges

4900 RD Mile 23 over Chateau Creek

Fair

Montgomery County, Kansas · 0.2S 5.0E of Sycamore · Structure no. 000000000630170

Built
1930
95 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
98
2010 count
Owner
County
County Highway Agency

About this bridge

4900 RD Mile 23 over Chateau Creek is a concrete slab carrying 4900 RD Mile 23 over Chateau Creek in Montgomery County, Kansas. It was built in 1930, so it is 95 years old, older than the Kansas average of 52.8 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 98 vehicles a day, roughly 3% of them trucks, projected to reach 125 by 2039. The structure is 23 ft (6.9 m) long and 22 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries4900 RD Mile 23
CrossesChateau Creek
Location0.2S 5.0E of Sycamore
RouteCounty Highway 465
CountyMontgomery County
StateKansas
Coordinates37.32415, -95.62022
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (6.9 m)
Longest span20 ft (6.2 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic98 (2010)
Projected traffic125 by 2039
Trucks3%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 4900 RD Mile 23 over Chateau Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is 4900 RD Mile 23 over Chateau Creek 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 March 2023.

How much traffic does 4900 RD Mile 23 over Chateau Creek carry?

About 98 vehicles per day (2010 count), of which roughly 3% are trucks.

How long is 4900 RD Mile 23 over Chateau Creek?

The structure is 23 ft (6.9 m) long with a longest span of 20 ft (6.2 m) and a deck 22 ft wide.

Who owns 4900 RD Mile 23 over Chateau Creek?

It is owned by the County Highway Agency.