Introduction to Stream Restoration - Hydro-Environmental Analysis: Freshwater Environments - page 257

Top of live fascine slightly
exposed after installation
Moist soil backfill

Cross section
Not to scale

Prepared trench

Erosion control
fabric and seeding

Stream-forming flow

Base flow
Stream bed

Live fascine bundle

Live stake
(2-3 ft. spacing between
dead stout stakes)

Geotextile fabric

To e protection

Dead stout stake
(2-3 ft. spacing along bundle)

Live branches
(stagger throughout
bundle)

Bundle
(6-8 in. in diameter)

Tw ine

FIGURE 8.39 Live facines. (From NRCS, Streambank and shoreline protection. Chapter 16 in Engineering
Field Handbook , Natural Resources Conservation Service. 1996a.) Note: Rooted/leafed condition of the liv-
ing plant material is not representative of the time of installation.

Cross section
Not to scale

Existing vegetation, plantings
or soil bioengineering systems

Erosion control
fabric

Stream-forming flow

Top of riprap minimum
thickness-maximum
rock size

1.5 (max.)

Base flow

Gravel bedding, geotextile
fabric, as needed

Stream bed

Bottom of riprap
minimum
thickness-
2 × maximum
rock size

FIGURE 8.40 Rock riprap details. (From NRCS, Streambank and shoreline protection. Chapter 16 in
Engineering Field Handbook , Natural Resources Conservation Service, 1996a.)