Or. Admin. Code § 629-643-0141 - Western Oregon; Small Forestland Owner Minimum Management Option Prescription

(1) The purpose of this rule is to provide the small forestland owner minimum option prescription for vegetation retention in Western Oregon riparian areas, as shown in Table 3.

Table 3: Western Oregon Small Forestland Owner Minimum Option Vegetation Retention Riparian Management Area Distances

Stream Type	Large	Medium	Small	Upstream distance
Type SSBT	100 feet	80 feet	60 feet	N/A
Type F	100 feet	70 feet	50 feet	N/A
Type N	70 feet	50 feet	See Type Np
Type Np, into Type SSBT			35	RH Max = 1,150 feet
Type Np, into Type F			35	RH Max = 600 feet
Type D	75 feet	75 feet	35 or 20 feet1	See OAR 629-643-0150

¹ Upstream distance from either Type F or Type SSBT

² 20 feet outside of Type Np vegetation retention requirements

(2) The small forestland owner shall apply the vegetation retention requirements to the riparian management areas of Type F, Type SSBT, and Type N streams. All other requirements for the standard practice prescription rules shall apply.

(3) The small forestland owner shall retain all trees and vegetation within the distances shown in Table 3, measured from the edge of the active channel or the channel migration zone, if a channel migration zone is present.

(4) For small Type Np streams flowing into a Type SSBT stream, the small forestland owner shall retain all trees as follows:

(a) All trees within 35 feet of the active channel, for a maximum distance of 1,150 feet upstream of the Type SSBT stream.

(b) The total distance of the tree retention area in (a) above the confluence according to the process in OAR 629-643- 0143.

(c) Locations outside the tree retention area retention requirements. The small forestland owner shall apply an R-ELZ or ELZ as required in OAR 629-643-0143.

(5) For small Type Np streams flowing into a Type F stream, the small forestland owner shall retain all trees as follows:

(a) Within 35 feet of the active channel, for a maximum distance of 600 feet upstream of the Type F stream.

(b) Above the confluence, the total distance of the tree retention area in (a) shall be determined according to the process in OAR 629-643-0143.

(c) Locations outside the tree retention area retention requirements, the small forestland owner shall apply an R-ELZ or ELZ as required in OAR 629-643-0143.

(6) For Type Np and Type Ns streams outside the tree retention area described in this rule, the small forestland owner shall follow all other Type N ELZ standard practice requirements as described in OAR 629-643-0105.

(7) The small forestland owner may count retained trees within harvest type 2 or harvest type 3 units, pursuant to ORS 527.676, as follows:

(a) For all medium and large Type F and Type SSBT streams, retained trees within the outer 20 feet of the distances described in Table 3, that otherwise meet the wildlife leave trees requirements, may be counted towards the wildlife leave trees requirements within harvest type 2 or harvest type 3 units, pursuant to ORS 527.676.

(b) For all small Type F and Type SSBT streams, and all Type N streams, retained trees that otherwise meet the wildlife leave trees requirements within harvest type 2 or harvest type 3 units, pursuant to ORS 527.676, may be counted. Trees retained in the forest conservation area may be counted toward these requirements.

Notes

Or. Admin. Code § 629-643-0141

DOF 7-2022, adopt filed 11/21/2022, effective 1/1/2024

Statutory/Other Authority: ORS 527.710, Section 2(1), Chapter 33, Oregon Laws 2022

Statutes/Other Implemented: ORS 527.715, 527.765, Section 2(2), Chapter 33, Oregon Laws 2022