US Bridges

Minor Col D-23 over Rock Creek

Good

Nemaha County, Kansas · 2.8N 2.0E of Berwick · Structure no. 000660983003027

Built
2008
17 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
130 ft
3 main spans
Daily traffic
100
2008 count
Owner
County
County Highway Agency

About this bridge

Minor Col D-23 over Rock Creek is a concrete continuous slab carrying Minor Col D-23 over Rock Creek in Nemaha County, Kansas. It was built in 2008, so it is 17 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 100 vehicles a day, projected to reach 105 by 2044. The structure is 130 ft (39.5 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMinor Col D-23
CrossesRock Creek
Location2.8N 2.0E of Berwick
RouteCounty Highway 6623
CountyNemaha County
StateKansas
Coordinates39.97585, -95.80716
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 protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating56 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length130 ft (39.5 m)
Longest span52 ft (16 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic100 (2008)
Projected traffic105 by 2044
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$164,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Minor Col D-23 over Rock Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Minor Col D-23 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 March 2024.

How much traffic does Minor Col D-23 over Rock Creek carry?

About 100 vehicles per day (2008 count).

How long is Minor Col D-23 over Rock Creek?

The structure is 130 ft (39.5 m) long with a longest span of 52 ft (16 m) and a deck 30 ft wide.

Who owns Minor Col D-23 over Rock Creek?

It is owned by the County Highway Agency.