Develop engineering designs. Use CAD software. Prepare cost estimates, performance work statements, and specifications for existing and proposed facilities. Design concrete and asphalt pavements. Perform simple load calculations for horizontal and vertical construction. agencies. Performs drafting duties. Interpret rough engineering sketches to produce working drawings using manual and CAD techniques. Produce architectural, structural, civil, mechanical, and electrical drawings. Update Base Comprehensive Plans (BCP) and maintains record drawings. Plot and reproduce drawings. Performs GIS duties. Link computerized maps to databases displaying detailed information via the web. Create geographic coverages. Develop database structures. Create and populate feature codes. Link graphical data to relational databases. Develop query routines for end-user applications. Performs surveying duties. Conduct reconnaissance, site location, construction, and mapping surveys while operating manual and electronic surveying equipment. Collect, convert, and present field survey data for civil engineering projects. Maintain equipment. Performs contract management duties. Manage and inspect construction and maintenance contracts. Interpret plans, specifications, and other contract documents. Coordinate, evaluate, monitor, and document contract activities and progress. Prepare recommendations for contract modifications. Review material submittals for compliance with contract specifications. Conduct pre-final, acceptance, and post acceptance inspections. Manage warranty and guarantee programs. Perform standardized and expedient tests on soils, asphalt, and concrete. Collect, record, and interpret test data. Prepare reports for engineering evaluation. Support contingency operations. Evaluate existing airfield pavements, lighting, navigational aids, markings, and arresting systems.