US Bridges

11-M.6 102 over Riddle Creek

FairPosted for load

Washington County, Kansas · 2.0E 0.8N of Morrowville · Structure no. 001010841603200

Built
1987
38 years old
Condition
Fair
inspected July 2024
Type
Girder and Floorbeam System
Steel
Length
60 ft
1 main span
Daily traffic
40
2014 count
Owner
County
County Highway Agency

About this bridge

11-M.6 102 over Riddle Creek is a steel girder and floorbeam system carrying 11-M.6 102 over Riddle Creek in Washington County, Kansas. It was built in 1987, so it is 38 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. Its operating status is: posted for load restriction.

It carries about 40 vehicles a day, projected to reach 48 by 2044. The structure is 60 ft (18.3 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries11-M.6 102
CrossesRiddle Creek
Location2.0E 0.8N of Morrowville
RouteCounty Highway 10118
CountyWashington County
StateKansas
Coordinates39.8572, -97.13327
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.8 US tons
Inventory rating16.9 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span60 ft (18.2 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2014)
Projected traffic48 by 2044
Trucks0%
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 11-M.6 102 over Riddle Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is 11-M.6 102 over Riddle 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 2024.

How much traffic does 11-M.6 102 over Riddle Creek carry?

About 40 vehicles per day (2014 count).

How long is 11-M.6 102 over Riddle Creek?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.2 m) and a deck 27 ft wide.

Who owns 11-M.6 102 over Riddle Creek?

It is owned by the County Highway Agency.