Job Purpose
The Infrastructure Draftsman (Civil 3D & GIS) is responsible for preparing detailed, accurate 2D and 3D civil engineering drawings, alignment profiles, utility layouts, surface models, and earthwork calculations using AutoCAD Civil 3D and AutoCAD. The role plays a key part in supporting infrastructure projects—including roads, highways, storm water drainage, sewerage, water supply, and utility networks—from concept design through construction, final As-Built submission, and GIS mapping in full compliance with local municipal and utility authority standards.
Key Responsibilities:
Design, Modeling & As-Built Drafting
- Develop detailed civil and infrastructure models using AutoCAD Civil 3D, including digital terrain models (DTM), ground surfaces, corridors, cross-sections, and longitudinal profiles.
- Draft multi-utility networks (storm water, foul sewer, potable water, irrigation, firefighting, wet and dry utilities) in compliance with project and local authority standards.
- Perform grading, corridor modeling, alignment creation, and volume calculations (cut and fill quantity take-offs) in Civil 3D.
- Prepare comprehensive As-Built Drawings based on final site survey data, redline markups, and actual field installations for road networks, levels, and underground utility assets.
Authority Compliance & GIS Deliverables
- Format and convert CAD/Civil 3D As-Built drawings into GIS-compliant datasets (e.g., Shapefiles, Geodatabase formats, spatial attribute tagging) as required by local authorities, municipalities, and utility service providers.
- Ensure all As-Built plans and GIS spatial data conform strictly to local authority submission guidelines, coordinate reference systems (e.g., national grid/datum), attribute schema, and layer naming conventions.
- Identify and resolve utility clashes across discipline layouts using Civil 3D clash detection tools and spatial coordination.
- Coordinate closely with Land Surveyors and GIS Specialists to verify survey points, coordinate accuracy, invert levels, and asset attributes prior to final authority submittal.
Standard & Quality Control
- Maintain drawing register logs, revision controls, CAD standard libraries, and GIS attribute metadata across project deliverables.
- Ensure all CAD/GIS drawings comply with company standards, layering conventions, sheet setups, and authority drafting frameworks.
- Assist in resolving technical comments or NOC/As-Built rejection feedback from municipal and government utility authorities.
Requirements & Qualifications:
Education & Experience
- Education: Diploma or Associate Degree in Civil Engineering, Architectural Drafting, GIS, or a related technical field.
- Experience: Minimum 3–5 years of experience as an Infrastructure Draftsman specializing in roads, grading, wet/dry utility networks, and As-Built/GIS authority submissions.
- Proven track record in preparing and securing authority approval for final As-Built drawings and GIS data packages.
Technical Skills
- Software Expertise:
- AutoCAD Civil 3D (Advanced proficiency: surfaces, corridors, pipe networks, alignments, grading, profiles).
- AutoCAD (Advanced 2D/3D).
- GIS Software (QGIS, ArcGIS, or AutoCAD Map 3D/Civil 3D GIS tools for data export, attribute tagging, and shapefile creation).
- Navisworks (Basic to intermediate knowledge for clash detection is an advantage).
- Authority & Spatial Knowledge:
- In-depth understanding of local authority submission workflows, NOC procedures, and As-Built/GIS submission standards.
- Strong understanding of spatial coordinate systems, georeferencing, survey data import/export, and GIS data structuring.
- Solid understanding of infrastructure construction details (manholes, catch basins, pipe beddings, thrust blocks, road pavements).
Core Competencies
- High attention to detail and spatial precision in drawing layout and technical drafting.
- Ability to work efficiently under tight deadlines and manage multiple authority submittals simultaneously.
- Strong team communication skills to liaise with project engineers, land surveyors, consultants, and municipal representatives.
Key Performance Indicators (KPIs)
- On-time delivery of accurate shop drawings, plan/profiles, and As-Built drawing packages.
- First-time approval rate of As-Built and GIS submissions with local authorities/utility providers.
- Full compliance of exported GIS layers and attribute tables with local municipal spatial data guidelines.
