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Development Engineering

Development Engineering

Development Engineering reviews transportation and stormwater plans submitted by private developers to ensure they meet engineering standards and erosion control regulations. The purpose of many of these reviews is to build facilities that protect public health and safety, as well as ones that are durable and can be readily maintained.

What's new - June 23, 2014
Clark County has stopped using a hydrology model, calibrated to local conditions, for designing stormwater facilities. Find out what this means for development projects.

Hours and email contact
Development Engineering's hours are 8 a.m. to 3 p.m. Monday through Friday, the same as the county's Permit Center. Please use the following email address,, to make appointments with staff or submit information.

Critical aquifer recharge areas (CARA)

Development Engineering reviews projects to prevent aquifer degradation and, when possible, enhance the quality of groundwater for drinking water or business purposes.

Developer Certification Optional Review Process
In August 2012, the Board of County Commissioners approved an optional alternative process to the final engineering review of developer-constructed projects.

The "Developer Certification" process waives the county review of some final engineering construction plans. In its place, property owners and their teams of developers, design consultants and contractors certify their projects comply with the land use decision, county code and county standards, including provisions of the county's national pollutant discharge elimination system permit for stormwater.

For more information, contact:
Ali Safayi, P.E.
Development Engineering Team Leader
(360) 397-6118 ext. 4102

Development Engineering Fees

Development inspection

Development Engineering is responsible for the administrative portion of inspection permitting prior to site inspection. This encompasses the administrative role for all new subdivision, short plats, site plans, drainage projects and excavation, fill and stockpile permits.

Engineering plan review

Development Engineering reviews the following types of projects:

  • Construction plans for approved preliminary site plans.
  • Construction plans for subdivisions and short plats with vested development approvals.
  • Stormwater plans for drainage projects.
  • Revisions to previously approved plans.

These reviews ensure that final engineering design and construction drawings not only meet county standards but comply with requirements of land use decisions (when applicable).

Plans can be electronically submitted through the county's FTP site by following these instructions:

Engineering variances

Development Engineering reviews requests to deviate from transportation provisions in county code.

Floodplain inquiry and review

Development Engineering provides floodplain review to minimize public and private losses due to flooding, protect life and property, maintain public health and minimize effects on floodplains.

Geological hazard permit (GEO)

Development Engineering reviews projects for compliance with regulations that limit development in areas with:

  • Seismic hazards where there is potential danger from earthquakes, settlement or surface faults.
  • Landslide potential due to a combination of slope, soil type and water.
  • Steep slopes where there is not a mapped or designated landslide hazard but the slopes have a 40 percent or steeper incline.

Grading (Excavation, fill and stockpile)

Development Engineering reviews permits for excavation, fill and stockpile (grading) to ensure the activity will not harm the environment or existing buildings and other structures.

Master application

This should be used with any application submitted to Development Engineering.


The following are financial forms that can be part of the review process:

Signature block

Please use this when submitting all engineering plans. A PDF and an AutoCAD version are listed below.


All development and redevelopment in Clark County must comply with the county's stormwater code.

For more information, contact:

Harriet Padmore
(360) 397-6118 ext. 4380

Melissa Tracy
(360) 397-6118 ext. 5843

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