WAC 468-34-290. Vertical clearance

The vertical clearance for overhead power and communication lines above the highway and the lateral and vertical clearance from bridges shall conform with the National Electrical Safety Code and/or with the clearances as shown below, whichever is greater. type of utility line lines crossing roadways longi- tudinal Communications and Cable Television 24' 20' Communications and/or Cable Television joint usage with electrical 20' 20' electrical 0 - 750 volts 24' 24' 751 - 15,000 volts 30' 27' 15,001 - 50,000 volts 32' 32' 50,001 volts and over 34' 32' type of utility line lines crossing roadways longi- tudinal Communications and Cable Television 24' 20' Communications and/or Cable Television joint usage with electrical 20' 20' electrical 0 - 750 volts 24' 24' 751 - 15,000 volts 30' 27' 15,001 - 50,000 volts 32' 32' 50,001 volts and over 34' 32' (1) The minimum height of highway crossing shall be measured from the point of the roadway directly under the crossing. (2) The minimum height of longitudinal lines shall be measured from ground line. (3) All clearances shall be at State Electrical Construction Code temperature and loading standards, and comply with all other requirements of this code.