DOT Highway & Roadway Infrastructure Spec Erosion Control Matrix
in Victoria

Pronounced moisture fluctuations will cause severe frost heave and desiccation. You must stabilize the subsoil mechanically and chemically to stop dispersive Sodosols from piping and eroding along your corridors. Spray high-performance hydroseed to establish deep-rooted vegetation fast.

Operational Constraints for DOT Highway Expansion

Highway expansions and road widenings expose massive, continuous steep slopes directly adjacent to active traffic. The constant wind shear from passing heavy commercial vehicles and earth-moving equipment vibration degrade weak agricultural tackifiers long before vegetation can establish. Furthermore, contractors must apply the matrix across extended linear distances, requiring a slurry that sprays efficiently from the cannon without cavitating the hydroseeder pump. You need an engineered binder that provides extreme shear resistance to protect the embankment, prevent subgrade failure, and keep the roadway clear of sediment runoff.

Meeting VicRoads Section 706 / Section 204 Specifications

OHRA ViscoLok & GreenTack anchors seed and mulch directly to the subsoil, providing the rain-fast shear strength required by VicRoads Section 706 / Section 204. Its microplastic-free botanical hydrocolloid network forms a 3D matrix. It resists high-velocity storm runoff and keeps synthetic toxins out of the watershed.

The matrix prevents "fisheye" lumping inside your hydroseeder pump. This stops pump cavitation and reduces friction head loss. You maximize your tank's spray payload and eliminate constant agitation adjustments on the job site.