3.8.3 Channel Liners & Soil Retention Blankets

TxDOT maintains an Approved Materials List for channel liners/soil retention blankets at
TxDOT.gov Erosion Control – Products and Vendors webpage
. This list describes the conditions for application and provides a list of materials approved based on its resistance to tensile stress. Refer to the
Standard Specification 169 – Soil Retention Blankets
on the
TxDOT.gov TxDOT Specifications webpage
for additional information.
  • There are two broad types of channel lining material: organic/organic composites and synthetics.
  • In general, organic and composite lining materials are used for vegetation establishment and offer no long-term channel protection.
  • The synthetic materials are longer lived and work with the root matrix of the vegetation to provide long term protection of the channel. Synthetic materials are preferred in ditches and channels that will have frequent flows at depths greater than 8 in (200 mm).