Design Criteria & Technical Specifications

All construction of public infrastructure shall be designed and submitted to the office of the City Engineer according to the requirements set forth in the City of Liberty Design Criteria and Technical Specifications. These documents provide standards for the construction of all infrastructure and the proper plan documentation to submit for approval and permit for the construction of such facilities. These design criteria and technical specifications are the latest version as adopted by the City Engineer.

More Information

Any questions regarding the Design Criteria and Technical Specifications, public works projects, or this process should be directed to the Engineering Division at 816-439-4500.

Design Criteria and Technical Specifications Links

Submission Requirements

Recent Revisions

City of Liberty Technical Specifications and Design Critera for Public Improvement Projects
Roadway Design Criteria Construction Specifications Standard Details

Road Improvements
37 through 41
Site Preparation N/A Section 1000 N/A
Grading N/A Section 1100 N/A
Subgrade Preparation N/A Section 1200 N/A
Prime & Tack Coat N/A Section 1300 N/A
Asphalt Surface & Base N/A Section 1400 D14-1 through D14-10
Concrete Pavement N/A Section 1500 D15-1 through D15-8
Pavement Marking N/A Section 1600 N/A
Traffic Signage N/A Section 1700 D17-1a through D17-9
Traffic Signals Traffic Signal Design Criteria Traffic Signal Const Specs Traffic Signal Details
      Approved Materials List
Street Lights Street Light Design Criteria Street Light Const Specs Street Light Details
      Approved Materials List
Concrete N/A Section 2000 N/A
Curb and Gutter N/A Section 2100 D21-1 through D21-3
Sidewalks & Driveways N/A Section 2200 D22-1 through D22-12d
Guardrail N/A Section 2300 Under Development
Traffic Control N/A Section 2400 D24-1
Planing/Milling N/A Section 2500 N/A
Crack Sealing, Chip Seal N/A Section 2600 N/A
Sanitary Sewers Design Criteria Construction Specifications Standard Details
  Sanitary Sewer Improvements    
Sanitary Sewers N/A Section 3000 D30-1 through D30-7
Manholes N/A Section 3100 D31-1a through D31-5
Acceptance Tests N/A Section 3200 N/A
Rehabilitation N/A Section 3300 N/A
Storm Sewers Design Criteria Construction Specifications Standard Details

KC APWA 5600


Liberty Modifications to 5600    

MARC BMP Manual    
  BMP Manual Addendum 11-10-16
    
Materials N/A Section 4000 D40-1a through D40-2a
Structures N/A Section 4100 D41-1 through D41-11
Open Channels N/A Section 4200 N/A
Stormwater Management Guidelines
Analysis
City staff will determine if the analysis for a proposed project may be limited in scope from the requirements set forth in the Storm Water Management Ordinance. Items City staff will look at in determining the level of drainage analysis required can be found in the Drainage Analysis Guidelines (PDF). Lacking approval for a limited scope all projects shall be required to submit a full Macro and subsequent Micro Storm Study.
Discharge Control
The quantity and quality of Storm Water discharges must be controlled from developed sites, both of which are crucial requirements for protecting human life and property, maintaining overall water quality, and for creating more environmentally conscious site design. To ensure the long term maintenance of installed storm water management systems a Covenant to Maintain Storm Water Management System is required to be accepted by City Council and executed and recorded at the Clay County Courthouse. 
Waterlines Design Criteria Construction Specifications Standard Details
  Waterline Improvements
 
Materials N/A Section 5000 D50-1 through D50-12
Tunneling, Boring & Jacking N/A Section 6000 D60-1 through D60-2
Restoration Design Criteria Construction Specifications Standard Details
Restoration of Surface Conditions N/A Section 8000 D80-1
Fencing N/A Section 8100 D81-1
Seed & Sod N/A Section 8200 N/A
Miscellaneous Design Criteria Construction Specifications Standard Details
Blasting N/A Section 7000 N/A
Materials Testing N/A Section 9000 N/A
Parking Lots Design Criteria Plan Requirements N/A
Tracer Wire N/A Section 9100 N/A
Conservation Easement Markers N/A N/A D100-D101
Dedication of Public Easements Template Template
Process - Petition for Dedication of Public Easements    
Conservation Easement General  
Utility Mains Easement General  
Public Utility Mains Easement Corporation Individual
Public Water Mains Easement Corporation Individual
Sanitary Sewer Mains Easement Corporation Individual
Storm Detention Facilities Easement Corporation Individual
Storm Drainage Easement Corporation Individual
Temporary Construction Easement Corporation Individual
Temporary Grading Easement Corporation Individual