SVPA-15

SVPA-15: 124th St East at Local Roots Farm

• Upstream: USGS-17
• Downstream: USGS-12

Attributes

• Road - 124th St (East - falling side of a flood)
• Slough
• Senses concrete pad when water is low
• Mounted on 4x4 post with cement pad

Installation Notes

Problems and Considerations (May 2020)

• Sensor Height – mount at same height or greater (15.04’).
  • Cantilever arm must be level and static.
  • Mount out over center of ditch if possible.

• RSSI issues – must be kept at same height for best RSSI.
• Access issues – field adjacent to ditch is often saturated, access to site by foot.
  • Cannot reach transmitter to change batteries without taking the post down, shouldn't have to take post down to access transmitter.
  • Position of post adjacent to the ditch is awkward and unsafe when using a ladder to try and access sensor.
  • Could move the location closer to 124^th St for better vehicle access.

• Sensing Cone Issues – the cone of detection is very wide at the ground level.
  • Be sure sensor mounted out from the post by at least 24” (radius of cone at ground level).
  • Problems with flood debris getting caught on post and being detected within the cone even after flood waters recede.

Links

• Floodzilla
• Google Map