Comparison of Erosion Control Measures?
Comparison of Erosion Control Measures?
(OP)
We're designing a large detention basin (10 acre site, 6.1 ac-ft of storage), with 2:1 side slopes.
Could someone give a summary of what each of the measures listed below is, including whether it is temporary or permanent, and compare the advantages and disadvantages of each? (For example, cost vs. practicality, when would one option be used vs. the others.)
The options I'm curious about are: hydro-mulch, plastic netting, erosion control blanket, and turf reinforcement mat. Thanks, Cherie
Could someone give a summary of what each of the measures listed below is, including whether it is temporary or permanent, and compare the advantages and disadvantages of each? (For example, cost vs. practicality, when would one option be used vs. the others.)
The options I'm curious about are: hydro-mulch, plastic netting, erosion control blanket, and turf reinforcement mat. Thanks, Cherie





RE: Comparison of Erosion Control Measures?
RE: Comparison of Erosion Control Measures?
hydro-mulch - cheapest, temp, not in swales, only 3:1 or less steep grade
plastic netting - next cheapest, temp, in low flow swales and 2:1 or less steep grade
erosion control blanket - reasonable $ (varies greatly), temp or perm, most swales, 2:1 or less steep grade
turf reinforcement mat - high cost, perm, all swales, shorelines, all grades
Geo-web - high cost, perm, excellent velocity breakers but also require TRM or ECB
cable concrete - high cost, perm, best protection, need crane to install, unlimited use
heavy root plantings - most attractive, cost varies (you might be able to coordinate with screening requirements, so that line item gets split in your cost estimate, not permitted on embankments in southcentral PA, USA (can breach watertightness/integrity of embankment.
RE: Comparison of Erosion Control Measures?
We went with the erosion control blankets because we knew the City would approve them, and that they were reasonable for our application. It's better to know what the other options are and how they compare, though, so thanks.
RE: Comparison of Erosion Control Measures?
RE: Comparison of Erosion Control Measures?