Or. Admin. R. 629-630-0800 - [Effective until 1/1/2024] Yarding; Ground-Based Equipment Near Waters of the State
(1) Operators shall
maintain the purposes and functions of vegetation required to be retained in
riparian management areas, and minimize disturbances to beds and banks of
streams, lakes, all wetlands larger than one-quarter acre, and retained
vegetation during ground-based yarding operations.
(2) Operators shall not operate ground-based
equipment within any stream channel except as allowed in the rules for
temporary stream crossings.
(3)
Operators shall minimize the number of stream crossings.
(4) For crossing streams that have water
during the periods of the operations, operators shall:
(a) Construct temporary stream crossing
structures such as log crossings, culvert installations, or fords that are
adequate to pass stream flows that are likely to occur during the periods of
use. Structures shall be designed to withstand erosion by the streams and
minimize sedimentation.
(b) Choose
locations for temporary stream crossing structures which minimize cuts and
fills or other disturbances to the stream banks.
(c) Minimize the volume of material in any
fills constructed at a stream crossing. Fills over eight feet deep contain such
a large volume of material that they can be a considerable risk to downstream
beneficial uses should the material move downstream by water. For any fill for
a temporary crossing that is over eight feet deep, operators shall submit to
the State Forester a written plan that includes a description of how the fills
would be constructed, passage of water, and the length of time the fills would
be in the stream.
(d) Design
temporary structures so that fish movement is not impaired on Type F or Type
SSBT streams.
(e) Remove all
temporary stream crossing structures immediately after completion of operations
or prior to seasonal runoff that exceeds the water carrying capacity of the
structures, whichever comes first. When removing temporary structures,
operators shall place fill material where it will not enter waters of the
state.
(5) For stream
crossings where the channels do not contain water during the periods of the
operations, operators are not required to construct temporary crossings as long
as disturbances are no greater than what would occur if structures were
constructed. Soil that enters the channels during the yarding operations must
be removed after completion of the operation or prior to stream flow, whichever
comes first. When removing such materials from the channels, operators shall
place the materials in locations where they will not enter waters of the state.
(6) Operators shall construct
effective sediment barriers such as water bars, dips, or other water diversion
on stream crossing approaches after completion of operations, or prior to rainy
season runoff, whichever comes first.
(7) Machine activity near (generally within
100 feet) streams, lakes, and other wetlands greater than one-quarter acre
shall be conducted to minimize the risk of sediment entering waters of the
state and preventing changes to stream channels. Operators shall only locate,
construct, and maintain skid trails in riparian management areas consistent
with the harvesting rules.
(8)
Operators shall minimize the amount of exposed soils due to skid trails within
riparian management areas. Except at stream crossings, operators shall not
locate skid trails within 35 feet of Type F, Type SSBT or Type D streams.
Operators shall provide adequate distances between all skid trails and waters
of the state to filter sediment from runoff water.
(9) Operators shall locate and construct skid
trails so that when high stream flow occurs water from the stream will not flow
onto the skid trail.
Notes
Stat. Auth.: ORS 527.710
Stats. Implemented: ORS 527.715 & 527.765
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