It is unlawful for any person to erect or maintain any telegraph, telephone, street railroad, electric light or electric railroad poles within the corporate limits of the city without first having executed and delivered to the city a bond in the sum of twenty five thousand dollars ($25,000.00) to be approved by the mayor conditional that they will defend all suits and claims and will indemnify and save the city harmless from any and all damages that may be caused by reason of the erection, maintenance, operation, management or use or failure to keep in proper repair of such telegraph, telephone, street railroad, electric light or electric railroad poles or the wires strung or placed underground within the limits of the city. (1989 Code: prior code § 8-4-1)