US Bridges

Minor I.8-16.0 over Mill Creek

Good

Riley County, Kansas · 3.4E 2.0S of Leonardville · Structure no. 000810877803920

Built
1977
48 years old
Condition
Good
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
40
2004 count
Owner
County
County Highway Agency

About this bridge

Minor I.8-16.0 over Mill Creek is a prestressed concrete tee beam carrying Minor I.8-16.0 over Mill Creek in Riley County, Kansas. It was built in 1977, so it is 48 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 40 vehicles a day, projected to reach 45 by 2044. The structure is 44 ft (13.4 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMinor I.8-16.0
CrossesMill Creek
Location3.4E 2.0S of Leonardville
RouteCounty Highway 8108
CountyRiley County
StateKansas
Coordinates39.33493, -96.795
Functional classRural Minor 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.
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 inspectionDecember 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.7 US tons
Inventory rating35.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length44 ft (13.4 m)
Longest span39 ft (11.8 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2004)
Projected traffic45 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 Minor I.8-16.0 over Mill Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Minor I.8-16.0 over Mill 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 December 2024.

How much traffic does Minor I.8-16.0 over Mill Creek carry?

About 40 vehicles per day (2004 count).

How long is Minor I.8-16.0 over Mill Creek?

The structure is 44 ft (13.4 m) long with a longest span of 39 ft (11.8 m) and a deck 30 ft wide.

Who owns Minor I.8-16.0 over Mill Creek?

It is owned by the County Highway Agency.