10/03/2000 10190

DRAFTER DESIGNER

DEFINITION: This is advanced technical work in the preparation of plans, drawings and specifications.

An employee in this class prepares a variety of plans, drawings and specifications that require much detail and the application of design skills. Work involves developing or revising design plans for highways, dams, and structures such as buildings, sewage treatment facilities, bridges, mine reclamation projects and fire towers which include floor plans, elevation, roofing, framing, foundation, electrical, mechanical, and plumbing details, footing and substructure, deck, and guide rail details for bridges. Work is performed using Computer Aided Drafting and Design (CADD) work stations, and involves drafting the above plans from the preliminary stages to the final stage; preparing drawings of cross-sections and subsurface explorations; or reducing surveyor field notes into working maps showing buildings, cross-sections and existing topography. Work involves determining the type, shape, and exact placement of electrical,
mechanical, and plumbing systems, and the proper selection and placement of doors, roof frames, walls, reinforcing steel bars and similar items. Work at this level is differentiated from the Drafter level by the requirement for limited design work and the amount of detail required in the finished work products. Work may include reviewing plans and specifications prepared by either departmental personnel or consultants for adherence to departmental standards and specifications. Work may involve preparing cost estimates and specifications for the project and lead work responsibilities over lower-level drafters for design projects of large size. The employee may serve as a lead worker over surveying staff for large or complex design projects. Work is received in the form of rough or incomplete sketches and oral or written instructions and is reviewed upon completion by a technical or administrative superior for quality,
completeness and adherence to established standards.

EXAMPLES OF WORK: Develops and designs plans for mine reclamation projects, flood protection projects, stream improvement projects, and structures such as buildings, sewage treatment facilities, bridges, aqueducts, dams and fire towers.

Prepares detailed drawings of floor plans, showing type and exact placement of doors, window openings, dimensions of walls, and exact number of brick and block courses.

Operates and maintains the Computer Aided Drafting and Design (CADD) workstation in the preparation of drawings.

Prepares drawings showing existing and proposed topographic features and structures.

Prepares detailed drawings of existing structures from actual field measurements.

Designs a cross section of the building showing all interior construction which includes pitch of the roof, studs, joists, reinforcing steel bars for foundation walls and footers, and height of walls and footers.

Prepares a final set of drawings that includes all required detailing plans and materials with proper finish symbols.

Reviews drawings and specifications prepared by departmental draftsman or consultants for documentation quality, completeness and adherence to departmental standards and specifications.

Prepares cost estimates and specifications for projects and submits them for approval.

Prepares drawings for cross-sections and subsurface exploration and reduces surveyor field notes into working maps showing buildings, cross- sections and existing topography.

Prepares complete topographic plans, right-of-way and subdivision plans, utility plans and other related plans.

Assists in the writing of metes and bounds of property parcels for acquisition and disposal of Commonwealth land.

Letters plans, drawings, signs, charts, maps, and other documents in freehand or by using mechanical letter sets.

Checks trigonometry, geometry, algebra and engineering calculations to determine areas of land, quantities of cut or fill, and to coordinate bearings and distance of various points and lines.

Reads and interprets maps, plans, sketches, drawings, aerial photographs, blueprints, surveyor notes and similar material.

Performs related work as required.

REQUIRED KNOWLEDGES, SKILLS AND ABILITIES: Knowledge of the methods and techniques, instruments, and materials used in drafting and design.

Knowledge of Computer Aided Drafting and Design (CADD) applications and methods.

Knowledge of the drafting principles and practices used in the preparation of plans, drawings, and specifications for engineering, architectural, and surveying projects.

Knowledge of the basic principles and practices applied in the design of structural projects.

Knowledge of basic building materials.

Knowledge of algebra, plane geometry and trigonometry.

Knowledge of surveying principles and the use of basic surveying instruments required to determine site/building grades and elevation.

Ability to learn departmental drafting standards.

Skill in the use of drafting equipment and the Computer Aided Drafting and Design (CADD) system.

Skill in the development of final plans, drawings, and specifications for engineering, architectural or survey projects.

Ability to create 3-D drawings and views of site plans with a CADD program.

Ability to letter in freehand or by using a mechanical lettering set.

Ability to read and interpret maps, plans, sketches, drawings, aerial photographs, blueprints, surveyor notes and similar material and to use a stereoscope.

Ability to prepare plans, drawings, maps, and similar material from detailed sketches and written instructions.

Ability to maintain computer, printer, and plotter.

Ability to read, interpret, and apply federal, state, and municipal building codes and regulations.

Ability to establish and maintain effective working relationships with associates and departmental personnel.

Ability to communicate effectively, orally and in writing.

MINIMUM EXPERIENCE AND TRAINING: Two years of experience as a Drafter;

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Two years of experience as an Environmental Engineering Technician, which includes a minimum of one year of engineering, architectural or survey drafting work, including or supplemented by six months of CADD experience or training;

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Two years of experience in engineering, architectural or survey drafting work, including or supplemented by six months of CADD experience or training, and an Associate's Degree in the field of engineering technology or Computer Aided Drafting and Design;

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An equivalent combination of experience and/or training, including or supplemented by six months of CADD experience or training.