US Bridges

Minor K.5-16.0C over Trib. to Mill Creek

FairPosted for load

Riley County, Kansas · 3.2E 2.5N of Riley · Structure no. 000810881503920

Built
1940
85 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
1 main span
Daily traffic
75
2004 count
Owner
County
County Highway Agency

About this bridge

Minor K.5-16.0C over Trib. to Mill Creek is a steel stringer/multi-beam or girder carrying Minor K.5-16.0C over Trib. to Mill Creek in Riley County, Kansas. It was built in 1940, so it is 85 years old, older 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 75 vehicles a day, projected to reach 80 by 2044. The structure is 48 ft (14.6 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMinor K.5-16.0C
CrossesTrib. to Mill Creek
Location3.2E 2.5N of Riley
RouteCounty Highway 8108
CountyRiley County
StateKansas
Coordinates39.33478, -96.76583
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating15.1 US tons
Inventory rating9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length48 ft (14.6 m)
Longest span46 ft (14 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic75 (2004)
Projected traffic80 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$126,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Minor K.5-16.0C over Trib. to Mill Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Minor K.5-16.0C over Trib. to Mill 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 December 2024.

How much traffic does Minor K.5-16.0C over Trib. to Mill Creek carry?

About 75 vehicles per day (2004 count).

How long is Minor K.5-16.0C over Trib. to Mill Creek?

The structure is 48 ft (14.6 m) long with a longest span of 46 ft (14 m) and a deck 24 ft wide.

Who owns Minor K.5-16.0C over Trib. to Mill Creek?

It is owned by the County Highway Agency.