M-620-12 Field Office Class 212' x 50' Field Office.https://www.codot.gov/business/designsupport/2019-and-2012-m-standards/2019-m-standards-plans/2019-m-standards-plan-sheets/M-620-12-field-office-class-2https://www.codot.gov/@@site-logo/siteLogo.png