Slopetame2 Anchoring / Pinning System

Slopetame2 with Duckbill Anchors

The Duckbill anchor works very much like a toggle bolt. The anchor body is driven into the soil with a re-useable drive steel (drive rod) or galvanized steel rebar. Once the anchor body is placed to the proper depth the drive steel is removed. A backward pull on the cable then rotates the anchor body in the ground until it is perpendicular to the cable. This is called anchor-locking the anchor. Because the Duckbill is driven into the earth, it is actually compacting the soil around it, not disturbing it.


Slopetame2 is anchored down with the Duckbill anchoring system. Click here to see a larger image.

Step One: Insert 3 ft (1 m) long – 3/4″ (2 cm) dia. rebar into the anchor body

Step Two: Drive the anchor until the cable loop is approximately 3 inches (7 cm) below the Slopetame2 bottom (fabric/grid) and the top of existing grade.

Step Three: Fill hole made by anchor with soil.

Step Four: Pull Back on the anchor cable using a hand hook or mechanical/hydraulic Jack. The anchor cable loop should allow be brought back 3 inches – the length of the “bill.”

Step Five: Insert the rebar through the loop in the anchor cable and between the Slopetame2 rings.


Workers drive a Duckbill® anchor using a pneumatic hammer.

Galvanized steel rebar lays between the Slopetame2 rings. This piece will become the top of the “T” in the anchoring system. Please note: the rebar must lay parallel to the Slopetame2’s erosion control bars. View closer detail.

Duckbill® Brochure

Model 68 Duckbill®’s are supplied with Slopetame2 at 1 per 10 m2 (108 sq ft). Download the Duckbill® Brochure.