US Bridges

Mission RD over Trib. to Big Blue River

Fair

Johnson County, Kansas · 1.2E 2.8N of Stillwell · Structure no. 000000000460160

Built
1990
35 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
1,600
2022 count
Owner
County
County Highway Agency

About this bridge

Mission RD over Trib. to Big Blue River is a concrete continuous slab carrying Mission RD over Trib. to Big Blue River in Johnson County, Kansas. It was built in 1990, so it is 35 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 1,600 vehicles a day, roughly 6% of them trucks, projected to reach 1,900 by 2043. The structure is 82 ft (25.1 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMission RD
CrossesTrib. to Big Blue River
Location1.2E 2.8N of Stillwell
RouteCounty Highway 347
CountyJohnson County
StateKansas
Coordinates38.8076, -94.63049
Functional classUrban 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
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating74 US tons
Inventory rating44.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length82 ft (25.1 m)
Longest span32 ft (9.7 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,600 (2022)
Projected traffic1,900 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Mission RD over Trib. to Big Blue River built?

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

What condition is Mission RD over Trib. to Big Blue River 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 Mission RD over Trib. to Big Blue River carry?

About 1,600 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Mission RD over Trib. to Big Blue River?

The structure is 82 ft (25.1 m) long with a longest span of 32 ft (9.7 m) and a deck 34 ft wide.

Who owns Mission RD over Trib. to Big Blue River?

It is owned by the County Highway Agency.