S+SNZ Geodetic Survey case studies
S+SNZ Geodetic Survey · Put your knowledge to work in context.
Survey and Spatial New Zealand (S+SNZ) is a professional association representing members in the survey and spatial sector in New Zealand, and it describes itself as "Measuring success together". Its membership spans people working in land development and urban design, resource management, civil engineering surveying, positioning and measurement, cadastral surveying, hydrographic surveying and the spatial/GIS sector, and it organises those interests into six professional streams. The S+SNZ Geodetic Survey case studies are 5 cases and about 3,636 words.
1Reinstating a suburban boundary where the fence and pegs disagree
A 1928 subdivision in a Wellington suburb created Lot 14 with a 16.18 m street frontage and a right-angled rear corner. The original iron tube at the rear corner survives, but the two street pegs are gone under a concrete footpath.
766 words, about 4 min2RTK control for a bridge setout beside a steel portal
A 90 m concrete bridge is to be built over a tidal river. The design requires pier positions and deck levels to plus or minus 10 mm relative to a site datum.
762 words, about 4 min3Harbour dredging survey with a two-hour tide-gauge outage
A maintenance dredging survey is required in a 1.2 km harbour basin where charted depths are 8 to 14 m. You run a multibeam echosounder with RTK tide and a shore tide gauge.
712 words, about 4 min4Setout of a low-gradient drainage channel with a suspect benchmark
A 1.6 km stormwater channel is being set out through a new subdivision. The design invert falls at 0.10% from chainage 0+000 to 1+600, with a minimum freeboard of 0.3 m.
670 words, about 3 min5Fourteen-lot subdivision with a stormwater pipe through Lot 7
A 14-lot medium-density subdivision is proposed on a 0.62 ha site in a town centre edge zone. Lots range from 420 to 480 square metres, with 6 m frontages.
726 words, about 4 min