Rip Rap (Rock) Program
Rip rap is commonly used to protect soil from erosion in areas of concentrated runoff. Placing rip rap along a ditch or channel increases surface roughness and slows the velocity of water, protecting the soil surface against erosion and scour.
The City of Duluth established a Rip Rap Program to assist property owners in maintaining drainage easements on their property. Under the Rip Rap Program, the City's Stormwater Utility will provide a single load (approximately 15-18 tons) of Type III rip rap delivered to a single property for the erosion protection of a drainage easement. An HOA is eligible for up to ten loads of rip rap delivered to a single common location. Type III rip rap stone is generally the size of a football up to the size of a basketball.
The City is not currently accepting applications for rip rap.
- Duluth Rip Rap Program - Application
- Duluth Rip Rap Program - Guidelines
- Duluth Rip Rap Program - Indemnity Release