To be sure, being a municipal engineer (especially as a department head) is a demanding job. But, if diversity is important to you, there is no better opportunity to practice your skills--both engineering AND non-engineering. "Compulator" will find his municipal experience to be...
The California Department of Transportation (Caltrans) publishes its "Plans Preparation Manual" at the following URL:
http://www.dot.ca.gov/hq/esc/oe/project_plans/drafting/dpmanual.pdf