US Bridges

Mission RD over Big Blue River

Good

Johnson County, Kansas · 1.2E 4.3N of Stillwell · Structure no. 000000000460170

Built
1999
26 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
248 ft
3 main spans
Daily traffic
2,000
2022 count
Owner
County
County Highway Agency

About this bridge

Mission RD over Big Blue River is a prestressed concrete continuous stringer/multi-beam or girder carrying Mission RD over Big Blue River in Johnson County, Kansas. It was built in 1999, so it is 26 years old, younger than the Kansas average of 52.8 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 2,000 vehicles a day, roughly 6% of them trucks, projected to reach 2,400 by 2043. The structure is 248 ft (75.6 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMission RD
CrossesBig Blue River
Location1.2E 4.3N of Stillwell
RouteCounty Highway 347
StateKansas
Coordinates38.83068, -94.63031
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82.9 US tons
Inventory rating49.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length248 ft (75.6 m)
Longest span82 ft (24.9 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic2,000 (2022)
Projected traffic2,400 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 Big Blue River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Mission RD over Big Blue River 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 March 2023.

How much traffic does Mission RD over Big Blue River carry?

About 2,000 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Mission RD over Big Blue River?

The structure is 248 ft (75.6 m) long with a longest span of 82 ft (24.9 m) and a deck 38 ft wide.

Who owns Mission RD over Big Blue River?

It is owned by the County Highway Agency.