US Bridges

231st Street over Big Bull Creek

Fair

Miami County, Kansas · 1.0S 1.3W of Antioch · Structure no. 000000000610520

Built
1980
45 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
249 ft
5 main spans
Daily traffic
220
2011 count
Owner
County
County Highway Agency

About this bridge

231st Street over Big Bull Creek is a concrete continuous slab carrying 231st Street over Big Bull Creek in Miami County, Kansas. It was built in 1980, so it is 45 years old, younger 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 220 vehicles a day, roughly 10% of them trucks, projected to reach 783 by 2043. The structure is 249 ft (75.9 m) long and 38 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries231st Street
CrossesBig Bull Creek
Location1.0S 1.3W of Antioch
RouteCounty Highway 1030
CountyMiami County
StateKansas
Coordinates38.71141, -94.96886
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.3 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length249 ft (75.9 m)
Longest span52 ft (15.7 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic220 (2011)
Projected traffic783 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-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 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 231st Street over Big Bull Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is 231st Street over Big Bull 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 July 2023.

How much traffic does 231st Street over Big Bull Creek carry?

About 220 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is 231st Street over Big Bull Creek?

The structure is 249 ft (75.9 m) long with a longest span of 52 ft (15.7 m) and a deck 38 ft wide.

Who owns 231st Street over Big Bull Creek?

It is owned by the County Highway Agency.