color code for marking excavation sites & underground facilitiesThe Merced Irrigation District is a proud member of the Underground Service Alert (USA) One-Call System.

The USA North system provides a free and effective damage prevention service that protects the communities and underground facilities in Central and Northern California and Nevada.

USA North began operation in May of 1975 and incorporated as a non-profit mutual benefit corporation in 1986.

The objective is to receive planned excavation reports from pubic or private excavators and to transmit those planned excavations reports to all participating members of USA North who may have facilities at that excavation site.

As a member, Merced Irrigation District will mark or stake the horizontal path of our underground facilities, provide information about the location of our underground facilities, and advise the excavator of clearance for facilities that we own.


811 -or- 1-800-227-2600
Please call our Electric Facilities Inspector at 209-201-8108 with questions regarding existing Electric USA tickets.

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