City of Billings, MO ARTICLE XIX Design Standards for Public Improvements — General Requirements

Section 400.990 Purpose.

[Ord. No. 777 §26-121, 3-23-1994]

A. The regulations and provisions contained in the Design Standards for Public Improvements are adopted for the following purposes:

1. To protect and provide for the public health, safety and general welfare of Billings.

2. To provide for adequate transportation and circulation throughout the City of Billings and to ensure the adequate provision of water, sewer and other public utilities and services.

3. To prevent the pollution of water resources, to protect from flooding and other dangers and to ensure the adequacy of drainage facilities.

4. To preserve and protect the value of land and buildings through minimizing land development conflicts and encouraging reasonable standards of subdivision design and the provision of public improvements.

Section 400.1000 Engineering Drawing Standards.

[Ord. No. 777 §26-122, 3-23-1994]

A. All engineering drawings shall be of uniform size twenty-four (24) by thirty-six (36) inches and shall have a standard title block on the lower right-hand corner of the sheet. Consultants shall place their own title block above or to the left. The registration seal of the responsible engineer shall be placed in a convenient place in the lower right-hand corner of each sheet of plans.

B. Whenever possible, engineering plans and profiles shall be drawn to a standard sale of one (1) inch equals fifty (50) feet horizontal and one (1) inch equals five (5) feet vertical. Drainage area maps, construction details and cross section or contour maps shall be drawn o a suitable scale.

C. Elevations on profiles and sections or as indicated on plans shall be U.S.G.S. datum. At least two (2) permanent bench marks in the vicinity of each project shall be noted on the first (1st) drawing of each project and their location and elevation shall be clearly defined.

D. The top of each plan shall be either north or east and the standard north arrow should be used. The stationing on street plans and profiles may be either from the left to right or from right to left, but on drainage plans the stationing shall always begin at the low point.

E. When more than one (1) drawing is involved in one (1) project, an overlap of not less than one hundred (100) feet should be provided. Each project shall show at least fifty (50) feet of topography on each side. All existing topography and any proposed changes, including utilities, telephone installations and so forth, shall be shown on the plans and profile.

F. Revisions to drawings shall be indicated above the title block and shall show the nature of the revision and the date made.

G. Typical symbols to be used in the preparation for engineering drawings are contained in Section 400.1030. Topography for which symbols are not standardized shall be indicated and named on plans and profiles. In utilizing the standard symbols for engineering plans, all existing utilities, telephone installations, storm sewers, pavements, curbs, inlets and culverts and so forth shall be shown with a broken line; proposed facilities with a solid line; land, lot and property lines to be shown with a slightly lighter solid line. Easements shall be shown and, if known, the book and page number of the recording.

H. It shall be understood that the requirements outlined in these standards are only minimum requirements. When unusual subsoil or drainage conditions are suspected, an investigation should be made and a special design prepared in line with good engineering practice.

I. Each plan should indicate the owner or subdivider for whom improvements are to be constructed.

J. Lot lines and dimensions shall be shown where applicable.

Section 400.1010 Submission of Engineering Plans.

[Ord. No. 777 §26-123, 3-23-1994]

Three (3) sets of the engineering construction plans for streets and storm sewers shall be submitted to the City Engineer. After approval by the City Engineer, one (1) set of the engineering plans will be retained by the contractor on the job site.

Section 400.1020 Inspection Requirements.

[Ord. No. 777 §26-124, 3-23-1994]

Periodic inspections shall be required during the construction of all public improvements. The developer shall schedule a preconstruction conference with his/her contractor, the City Engineer and the City Public Works Director to discuss project expectations and required inspections. The City Engineer shall witness acceptance testing of water and sewer mains. Required street improvement inspections shall be as set forth in Section 400.1190.

Section 400.1030 Standard Symbols for Engineering Plans.

[Ord. No. 777 §26-125, 3-23-1994]

	R.O.W. line and lot lines
	Iron pin
	Stone marker
	Power pole * high voltage x service poles (show voltage if over normal distribution)
	Telephone pole * high voltage w/telephone x service pole w/telephone
	Power or telephone anchor (show distance to pole)
	Telephone manhole (show square or circular)
	Underground telephone cable
	Underground power cable
	Underground white-way cable
	Building (show size and type of material)
	Building overhanging (show exact outlines and kind)
	Concrete paving between integral curbs (show paving and parkway width)
	Asphalt paving between concrete curb and gutter (show paving and parkway width)
	Hedge (show kind, width and height)
	Swamp
	Pond or sinkhole
	Ditch and direction of flow
	Earthwork cut
	Earthwork fill
	Clothesline
	Meadow
	Cleared land
	Orchard
	Cultivated land
	Directional symbol
	Culvert pipe (show type and size)
	Box culvert (show type and size)
	Storm sewer and junction box (show M.H. cover or with grate)
	Storm sewer inlet or grate
	Street light (show kind)
	Traffic sign (show kind)
	Traffic light (show kind)
	Stone wall (show width and height)
	Concrete or block wall (show width and height)
	Fence (show type and height)
	Tree (show kind and size)
	Bushes or shrubs (show kind)
	Evergreen tree