US Bridges

Rs 20 over Mission Creek

GoodPosted for load

Atchison County, Kansas · 1.0W of Kennekuk · Structure no. 000000000030080

Built
1974
51 years old
Condition
Good
inspected July 2024
Type
Tee Beam
Concrete Continuous
Length
120 ft
3 main spans
Daily traffic
89
2007 count
Owner
County
County Highway Agency

About this bridge

Rs 20 over Mission Creek is a concrete continuous tee beam carrying Rs 20 over Mission Creek in Atchison County, Kansas. It was built in 1974, so it is 51 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. Its operating status is: posted for load restriction.

It carries about 89 vehicles a day, projected to reach 133 by 2042. The structure is 120 ft (36.6 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRs 20
CrossesMission Creek
Location1.0W of Kennekuk
RouteCounty Highway 20
CountyAtchison County
StateKansas
Coordinates39.64518, -95.51843
Functional classRural Major 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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.5 US tons
Inventory rating22.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length120 ft (36.6 m)
Longest span45 ft (13.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic89 (2007)
Projected traffic133 by 2042
Trucks0%
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 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 Rs 20 over Mission Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Rs 20 over Mission Creek 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 July 2024.

How much traffic does Rs 20 over Mission Creek carry?

About 89 vehicles per day (2007 count).

How long is Rs 20 over Mission Creek?

The structure is 120 ft (36.6 m) long with a longest span of 45 ft (13.7 m) and a deck 30 ft wide.

Who owns Rs 20 over Mission Creek?

It is owned by the County Highway Agency.