United States Department of Transportation
i
Temporary stabilization specification improvements.
-
2014-09-01
-
[PDF-2.33 MB]
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:Seed variety performance data for establishing temporary vegetative cover was collected at four Illinois locations
at four planting seasons. Current Illinois Department of Transportation (IDOT) standard specifications call for a
mixture of perennial rye and spring oats for temporary vegetative cover, with no variation for time of year or site
conditions. That mixture has demonstrated some success; however, for every location and time of year, this
study identified at least one seed variety that demonstrated performance superior to the specified mix. Temporary
seeding specifications currently employed by nearby states were reviewed and compared with Illinois’
specifications. In addition to seed variety, the effectiveness of seed bed preparation using a power rake and the
effectiveness of straw-mat and loose wheat-straw mulching methods were investigated.
Based on the observed results, the research team has proposed modifying temporary seeding recommendations
to reflect seeding date and site location. Adoption of these research-based temporary seeding specifications will
likely result in improved temporary vegetative cover establishment, reduced erosion, and improved water quality
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
