Surveying 101: Difference between revisions
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*Result: Looking for smooth arcs of 100' | *Result: Looking for smooth arcs of 100' | ||
*Put in contours every 20' using rotating laser level and transmitter | *Put in contours every 20' using rotating laser level and transmitter | ||
Grid: | |||
*100' grid, using transit level and 2 compasses (because one might be corrupted) | |||
*Number/label squares on grid, write on a map | |||
*For each square you will be able to tell slope, aspect, and decide how you want to use that square | |||
Brain->design theory->model design->footprint->grid | |||
=Design= | =Design= |
Revision as of 00:43, 24 July 2012
Tools
- Contractor's site level - shoots vertical intervals - drop in stairstep. Vertical intervals are equal unless there is huge variation in slope. Contractor's level is by Berger at Home Depot.
- Laser level - online - quickest is Forestry Supply has good options. Robust. No hassle. Self-leveling laser - where you don't have to do a bubble to level. Must have 360 deg compass on it. Laser shoots 360 degrees. Shoots lo less than 1000 feet in shooting length. TopCon brand.
- Stick - Forestry Supply - 16' stick. Reads in 10ths of inch. Read the back of it, so distance from ground rather than absolute.
- Weedwhacker + chainsaw. Offset 10' from trees if trees are in the way.
- Always go in one direction.
- Need a scale map of property.
Procedure
Shoot vertical intervals first (slope). Set up horizontal intervals (following contours, creates aspect) later. Then put the grid down.
- Find steepest slope, lay 2 foot intervals
- 2 foot drop standard. May need to be 3' or 4' at high slope like 10%.
- 25' terrace is the guiding criteria, but if it's steeper then the terraces might have to be as narrow as 10'
- Result: Looking for smooth arcs of 100'
- Put in contours every 20' using rotating laser level and transmitter
Grid:
- 100' grid, using transit level and 2 compasses (because one might be corrupted)
- Number/label squares on grid, write on a map
- For each square you will be able to tell slope, aspect, and decide how you want to use that square
Brain->design theory->model design->footprint->grid
Design
Design: 5% slope not good for animals, west face not good.
Initial thoughts:
West strip
- more water, shade
- less erosion
- more established creeks
- proposed use: homesteads, collective gardens, ponds, water storage
East strip from S to N end
- Workshops
- large-scale storage (pole barns, tractor garages)
- greenhouses
- orchard/food forest (swales, trees, vines, edible groundcover)
- Ponds where there is good catchment (directly NW of orchard looks practical, as well as just N of the old workshop)
- pasture (organic shapes with edible fence following swales on contour)
- grazeland rotated by species, with cover crop and grain rotated seasonally
- rain catchment on animal shelters
- some shade trees planted
- water storage at top of slope, gravity-fed water troughs for animals
Native Trees
- remove ones with less utility, to be turned into biochar, lumber
- remove deadwood, leaving some logs to be inoculated with mushrooms
- Forested center space:
- Pond at north end, continuing into creek with ponds coming down the slope
- Pigs fenced in with palettes, left to forage and free range, fed the byproducts of civilization (whey, food wastes, fallen nut crop)
- Keepers: mulberry, elder, walnut, oak
Ask Parker on full soil report.
Resources
- Surveying Fundamentals and Practices - J. Nathansan et al.
- Dan Schellenberg;
- Site Survey