§ 98-117. Same—Plans and specifications.

All plans and specifications for sewer improvements and extensions shall include the following:

(1)

Plat sheet with one inch to 100 foot scale.

(2)

Profiles of all sewers proposed.

(3)

Details of construction of manholes, flush tanks, substructure and cleanouts according to city adopted specifications now in force.

(4)

Lines and figures shall be clearly and distinctly made thereon and extensions to be built to be shown by solid lines: . Existing sanitary sewers shall be shown by the following symbols: - - - -; and combined sewers by a dot and dash . - . - . - . -; all typographical symbols to be the same as those of the United States Geological Survey.

(5)

Elevations of the surface of the streets to be placed outside the street lines in the upper right angle, or opposite their respective positions in the street. The elevations of sewer inverts should be shown at street intersections, ends of lines and wherever a change of grade occurs. The elevations of surface shall be shown to the nearest one-tenth foot; those of the sewer invert to the nearest 1/100 foot. The sizes and gradients of all proposed and existing sewers shall be marked along the line of the sewer. The maximum distances between manholes shall not be greater than 400 feet and conform with city adopted specifications.

(6)

All sewer appurtenances and unusual features, such as manholes, lamp-holes, flush tanks, siphons, pumps, etc., shall be designated on the plans by suitable symbols and referenced by a legend near the title.

(7)

Profiles of sewer lines shall be prepared and drawn to such a scale as to show clearly the structural features of the sewer. For ordinary use the following scales are suggested; vertically ten feet to one inch; horizontally 100 feet to one inch. Both scales must be clearly shown upon each sheet. Upon these profiles shall be shown all manholes, flush tanks, lamp-holes, siphons and stream crossings, with elevations of stream bed and normal water. Figures showing the sizes and gradients of sewers, surface elevations, sewer inverts, etc., should be shown with the same frequency as required for the map.

(8)

When grades lower than those given in the recommended practice are used an explanation and reasons for the use of such grades should be included in the engineers report to the water and sewer director. On each sheet of profiles must be given, under the title, an index of the streets appearing on that sheet. Profile sheets shall be numbered consecutively.

(9)

The detail plans shall be drawn to such a scale as to show suitably and clearly the nature of the design and all details, such as manholes, frames, covers, iron pipes, valves, gates, etc.

(10)

Each drawing shall have legibly printed thereon the name of the town or persons for whom the drawing is made, the name of the engineer in charge, the date, the scale and such references and the title as are necessary for the complete understanding of each drawing.

(11)

No changes shall be made in construction without written permission from the superintendent of the water and sewer department or change the order from the city engineer.

(12)

Applicant shall furnish as built, drawings in as many copies as may be required by the city when the work is completed.

(Ord. No. 250, § 22, 8-27-59; Code 1973, § 21-76)