Or. Admin. Code § 629-630-0150 - Ground-Based Harvesting On Steep Or Erosion-Prone Slopes
(1) The purpose
of this rule is to reduce the potential for erosion from steep or erosion-prone
slopes to enter waters of the state.
(2) Slopes over 60 percent are subject to the
requirements of Sections (4) through (9) of this rule.
(3) Slopes over 40 percent where soils
consist of decomposed granite-type materials, or other highly erodible
materials as determined by the State Forester, are considered erosion-prone and
subject to the requirements of Sections (4) through (9) of this rule.
(4) Methods that avoid development of
compacted or excavated trails are the preferred alternative for operating on
steep or erosion-prone slopes. If the operation will result in excavated or
compacted skid trails, operators shall apply sections (5) through (9) of this
rule.
(5) If skid trails are
located on steep or erosion-prone slopes, operators shall locate them at least
100 feet from any stream channels.
(6) Operators shall locate skid trails where
water can drain off the skid trail and onto undisturbed soils.
(7) Skid trails shall not be located straight
up and down steep or erosion prone slopes for a distance exceeding 100 feet
unless effective drainage and sediment filtration can be achieved.
(8) Operators shall install effective cross
ditches on all skid roads located on steep or erosion-prone slopes.
(9) Operators shall limit the amount of
ground with disturbed soils on steep or erosion-prone slopes as described in
Sections (2) and (3) of this rule to no more than ten percent of the steep or
erosion-prone slopes within the operation area.
Notes
Statutory/Other Authority: ORS 527.710
Statutes/Other Implemented: ORS 527.710(2) & 527.630(3)
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