3. Site Inventory & Analysis Flashcards
What is site inventory?
A process of documenting various site data
What is site analysis?
Interpretation of site inventory data to make conclusions relevant to design process
Which is not apart of site inventory?
1. Identifying location of specimen trees
2. Conducting a slope analysis on a site building
3. Cataloging solids found on the site
- Conducting a slope analysis on a site building
What is not apart of site analysis?
1.Determining the site’s soils cannot support stormwTer infiltration
2. Suggesting site access occur in locations without specimen trees
3. Acquiring topographic fate of the site
- Acquiring topographic fate of the site
What are 8 things you can expect to find on a survey?
- Property boundary
- Public right of way
- Easement
- Topography
- Existing buildings
- Existing utilities
- Flood zone classifications
- Adjacent property uses and owners
In the Public Land Survey System, what is largest to smallest?
- sections, quadrangle, townships
- Quadrangle > township > sections
How big is a quadrangle?
24 x 24 miles
How big is a township?
6 x 6 miles
How big is a section?
1x1 mile or 640 ac
How big is a quarter section?
160ac
Where is T2S R2W?
Township 2 south (of baseline) and range 2 west of principal meridian
(Very bottom left corner)
What are 4 survey types?
- ALTA
- As built
- Boundary survey
- Topographic
Generally used for documenting static, high contrast and large scale phenomena like buildings and difference between vegetated and non-vegetated areas
Aerial photography
A point used to deter,INE elevation and/or angular orientation of surveying instrument
Backlight
Basic surveying which only linear measurements are made and suitable for survey of small flat areas aka chain surveying
Chaining
Typically used to track growth of vegetation over time .
Infrared aerial
Process of determining height of one level relative to another. Used in surveying to establish the elevation of a point relative to a datum
Leveling
Light Detection And Ranging- imaging technology often used in aerial site survey and can also deter,INE topography
LIDAR
Survey technique using the observed height of a graduated upright rod (6’ typ) to infer horizontal distance
Stadia measurement
Survey technique that maps ares of land using series of interconnected lines
Traversing
T or F: site analysis and suitability analysis is used interchangeably in LARE
True
What are 3 steps of suitability analysis?
- Identify suitability criteria for anticipated land use
- Collect and map relevant site data
- Identify and map site locations that fit suitability criteria
Group of soils originating from same parent materials and with similar soil horizons in soil profile except soil texture
Soil series
Soil layer parallel to soil surface where physical, chemical, and biological characteristics differ from layers above and beneath (defined by physical features like color and texture)
Soil horizon
Vertical section of soil through horizons and extending into parent
Soil profile
What are the three main soil textures?
- Sand
- Silt
- Clay
This soil texture is the largest in size
Sand
This soil texture is fine and can be picked up by air or water
Silt
This soil texture is the smallest
Clay
Soil primarily composed of sand and silt with small amount of clay
Loam
Soil texture determines soil’s ________ holding capacity, permeability, and workability
Water
Soil with wide range and even distribution of soil particle sizes
Well-graded soil
Soil containing various particle sizes with some particle sizes missing
Gap-graded soil
Soil consisting of single range of particle size
Uniformity graded soil
What are two companion terms for permeability?
1.infiltration rate: rate wafer flows through pores of soil
2. Percolation: downward movement of water in soil
This type of soil is characterized by being heavily saturated in water for a long time wi5 soils becoming bluish in color
Hydric soils
Soil infiltration is important when designing ___________
Storm water management systems
Soil percolation is important when designing _______
Septic systems
Maximum slope which a loose material can be piled while remaining stable
Angle of repose
Ability of soil to return to original shape after ring subject to load condition
Soil elasticity
Ability of soil to be deformed under pressure without breaking apart
Soil plasticity
Minimum moisture content for soil to flow under its own weight
Liquid limit
What are 3 examples of best practices to reduce soil erosion? (7 total)
- Preserve existing vegetation
- Reduce total area of land disturbance
- Stabilize excavated areas with seeding, sodding, matting or mulching
- Minimize disturbance of steep slopes
- Schedule clearing and grading activities during dry season and prior/ during precipitation events
- Locate non-pollution sources
- Use erosion control fencing, blankets and stabilize drainage channels with things like riprap
3 common types of erosion are
- Gully erosion
- Rill erosion
- Sheet erosion
Widening, deepening, headcutting of small channels and waterways due to erosion
Gully erosion
removal of dirt by running water with formation of shallow channels that can be smoothed out by normal cultivation
Rill erosion
Removal of fairly uniform layer of soil or materials from land surface by action of rainfall and runoff water
Sheet erosion
NPK values describe the ratio of
Nitrogen, phosphorus, and potassium
Supports plants rapid growth and encourages healthy development of foliage and fruit
Nitrogen
Helps plant convert other nutrients into useable building blocks with which to grow
Phosphorus
Helps strengthen plants ability to resist disease and plays important role in increasing crop yields
Potassium
If soil is below 7 it is
Acidic
If soil is above 7 it is
Alkaline
Most plants love this range of pH in soil
5.5-7.5
Bogs are a type of wetland that is
Acid Ic soils
Most plants along the west cost of America are
Alkaline
Add this to overly acidic soils
Lime
Add this to overly alkaline soils
Sulfur
When plants get yellow leaves with green veins and brown along leaf margin
Chlorotic plants
If soils have high salt add
Gypsum
