Engineering aid (abbreviated as EA) is a

United States Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...

occupational rating. Engineering aids plan, supervise and perform tasks required in construction surveying, construction drafting, planning and estimating and quality control; prepare progress reports, time records, construction schedules and material and labor estimates; establish/operate a basic quality control system for testing soils, concrete and bituminous materials; prepare, edit and reproduce construction drawings; make control surveys, performing such tasks as running and closing traverses, surveying for excavations and obtaining and converting field notes into topographic maps; maintain individual combat readiness and perform tasks required in combat and disaster preparedness or recovery operations. The engineering aid's rating insignia shows a

Philadelphia Rod A Philadelphia rod is a level staff used in surveying. The rod is used in levelling procedures to determine elevations and is read using a level Level or levels may refer to: Engineering *Level (instrument), a device used to measure true horizo ...

, and alludes to the rating's original job, which was conducting surveys. At the

senior chief petty officer Senior Chief Petty Officer ''(SCPO)'' is an enlisted rank in the navies of some countries. United States U.S. Coast Guardsenior chiefpetty officercollar device U.S. Coast Guardsenior chiefpetty officerinsignia Senior chiefpetty officer ...

level, the engineering aid rating merges with the builder and steelworker ratings. At this level, they are referred to as a senior chief constructionman (abbreviated CUCS). At the master chief petty officer level, they merge with all other construction ratings as a master chief seabee (abbreviated as CBCM).

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See also