Development Review

The Development Review Division is responsible for providing public information, support, and technical assistance to the Public, the Planning Commission, and the Board of County Commissioners. The Division works with applicants to process land use applications in accordance with the Weld County Code.

In addition, the Division manages the following:

  • Improvements Agreements
  • Planning Case Referrals
  • Traffic Impact Study Reviews
  • Drainage Report Reviews
  • Special Projects as requested by the Commissioners


Weld County has adopted the Weld County Engineering and Construction Criteria (WCECC)(PDF, 20MB) manual. This manual assists applicants with providing project criteria for land use projects. Surveying, roadway classification, roadway design criteria, drainage criteria, MS4 requirements, and many more topics are covered within the manual. 

Improvements Agreements

Improvements Agreements are contracts submitted during the development review process, ensuring proposed development improvements are constructed in accordance with approved plans, plats, and supporting documents. For more information, please refer to Weld County Code, Article III, Section 2-3-30.

Sample Improvements Agreement(PDF, 203KB)

Drainage Review

Development Review is also responsible in ensuring safe, effective collection, conveyance, and storage of storm water runoff in a non-damaging and non-life threatening manner.

Additional stormwater management duties include the protection of the overall water quality of the County’s water resources and ensuring compliance with all applicable water quality regulations related to storm water runoff, including Phase II MS4 requirements which are regulated by the Colorado Department of Health and Environment. 

Weld County’s Storm Drainage Criteria can be found in the Weld County Code. The criteria was developed as an addendum to the Urban Storm Drainage Criteria Manual in order to more effectively reflect the rural nature of development in Weld County.

The following documents have been provided to guide engineers through Weld County's drainage review process.

Urban Storm Drainage Criteria Manual

Drainage Report Checklist(PDF, 106KB)

Certificate of Compliance(PDF, 90KB)

Rational Method Runoff Coefficients(PDF, 45KB)

Detention Basin Volume Estimating Workbook(XLS, 2MB)

Peak Runoff Prediction Workbook - Rational Method(XLS, 130KB)

Urban Drainage Rational Section(PDF, 1MB)

Urban Drainage Storage(PDF, 529KB)