US Bridges

Minor Col 122 over Rock Creek

Good

Osage County, Kansas · 2.0S 2.5E of Melvern · Structure no. 000701007805100

Built
1983
42 years old
Condition
Good
inspected January 2025
Type
Slab
Concrete Continuous
Length
142 ft
3 main spans
Daily traffic
50
2019 count
Owner
County
County Highway Agency

About this bridge

Minor Col 122 over Rock Creek is a concrete continuous slab carrying Minor Col 122 over Rock Creek in Osage County, Kansas. It was built in 1983, so it is 42 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 50 vehicles a day, projected to reach 60 by 2045. The structure is 142 ft (43.4 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMinor Col 122
CrossesRock Creek
Location2.0S 2.5E of Melvern
RouteCounty Highway 7006
StateKansas
Coordinates38.47783, -95.58529
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length142 ft (43.4 m)
Longest span56 ft (17 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2019)
Projected traffic60 by 2045
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 Col 122 over Rock Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is Minor Col 122 over Rock 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 January 2025.

How much traffic does Minor Col 122 over Rock Creek carry?

About 50 vehicles per day (2019 count).

How long is Minor Col 122 over Rock Creek?

The structure is 142 ft (43.4 m) long with a longest span of 56 ft (17 m) and a deck 26 ft wide.

Who owns Minor Col 122 over Rock Creek?

It is owned by the County Highway Agency.