The city council shall, prior to the adoption of the resolution of intention to order any improvement to be made, require the superintendent of streets to make and file with the clerk a written report containing the following:

(a) An estimate of the cost of such improvement and incidental expenses for the period of time recommended to be specified in the resolution of intention.

(b) A diagram or map showing the streets affected by the proceeding and in which street lighting systems have been installed and also each lot or parcel of land abutting such streets. Each lot or parcel of land shall be given a separate number upon the diagram. The diagram, as finally approved by the city council, shall govern for all details as to the lots or parcels of land benefited by the proceeding.

(c) A proposed assessment of the total amount of the probable or estimated costs and expenses of the proposed improvement upon the several lots or parcels of land shown on the diagram or map referred to in subdivision (b) above, in proportion to the estimated benefits to be received by each such lot or parcel of land, respectively, for the period of time recommended for the continuance of the improvement and which is to be set out in the resolution of intention. The assessment shall refer to such lots or parcels of land upon the diagram or map by the respective numbers thereon.

(d) Plans and specifications which shall set out, among other things, the general type of street lighting system in each zone. The lighting systems to be improved shall be divided into zones and in each zone shall be grouped those systems of approximately the same general type. It shall be a sufficient description of the location of the lights to be improved if such plans or specifications show or describe the approximate location of the lights.

(Added by Stats. 1941, Ch. 79.)