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Engineering Review Team

An Engineer-on-Call is available during business hours to answer specific engineering related questions on the Public Works and Development phone line at (720) 874-6500.

Business Hours (excluding holidays)

Monday - Friday, 8 a.m. - 4:30 p.m.

Applicants who have submitted to Arapahoe County for development review and have specific questions related to their development may direct questions to the case engineer assigned at the respective links below.

Sue Liu, PE, CFM
Engineer III


Spencer M Smith, PE
Engineer III
SSmith4@arapahoegov.com

Sarah L White, E.I.T.
Engineer I


Cathy Valencia, E.I.
Engineer I