Engineering Services

Through its Engineering Services Division, Thornton oversees capital improvements, surveying, and maintaining the City's National Pollutant Discharge Elimination System (NPDES).

Capital Improvement Projects (CIP)

City Surveyor

The City Surveyor provides surveying services and technical information for CIP projects, consultants, and other City departments. Those services include computer drafting, topographic surveys, legal descriptions, and plat reviews. 

Horizontal Control

​Thornton does not maintain a survey network. When working on City projects, please use NGS monuments and/or the Adams County Network for your control points.

Vertical Control

The vertical datum must be based upon the North American Vertical Datum 1988 (NAVD 88) You may use the City of Thornton benchmarks, benchmarks from NGS, and the Adams County Control points.

Surveyor engineering equipment with theodolite.