830 x 980 mm x height* 

*Height is the required vertical distance to accommodate 

climb from water surface (incl. river fluctuations) to external 

collection box or Elver Chamber™ 

Angle: 30° 

Width: 400 mm 

Length: 920 mm 

Sequential switchback increments of 

925 mm 

Studded substratum facilitates a “3D” climbing structure 

for more efficient capture over a range of elver sizes. 

Interlocking tiles of 

490 x 200 x 40 mm 

~1/3 or 1 ft 

Requires minimal land use footprint 

Lifts above water surface via guide rails during off season

Addresses elver entry access over a 

range of water surface elevations

Series of short ramp climbs with rest options 

vs. a continuous extended ramp 

 ~500 l/min 

Flow rate down EF-16 tiles ~ 9-10 l/min 

(on 400 mm width EF-16) via single phase, 230V, 10A (depending on manufacturer)