Or. Admin. R. 629-643-0145
Current through Register Vol. 63, No. 8, August 1, 2024
Section 629-643-0145 - Small Forestland Owner Minimum Option Prescription for Seeps and Springs(1) The following prescriptions apply to seeps and springs located in Western Oregon: (a) For seeps and springs located within the riparian management areas described in Table 3, the small forestland owner shall retain all trees within 15 feet of the seeps and springs. If the 15-foot retention for seeps and springs already exists within the riparian management area described in Table 3, the small forestland owner shall not be required to retain additional trees. The length along the stream of additional tree retention area shall be limited to the seep and spring feature length.(b) The small forestland owner may retain trees that meet the wildlife leave trees requirements within harvest type 2 or harvest type 3 units, pursuant to ORS 527.676, that are immediately adjacent to seeps and springs as described in OAR 629-655-0000. 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 following prescriptions apply to seeps and springs located in Eastern Oregon: (a) For seeps and springs located within the inner zone distances described in Table 4, the small forestland owner shall retain all trees within 15 feet of the seeps and springs. No additional tree retention area shall be required if the 15 feet retention for seeps and springs already exists within the retention area described in Table 4. The small forestland owner shall limit the additional tree retention area's length along the stream to the seep and spring feature length. These rules do not apply to seeps and springs that are identified as important springs, as described in OAR 629-645-0000.(b) The small forestland owner may retain trees that meet the wildlife leave trees requirements within harvest type 2 or harvest type 3 units, pursuant to ORS 527.676, that are immediately adjacent to seeps and springs, as described in OAR 629-655-0000. Table 4: Eastern Oregon Small Forestland Owner Minimum Option Vegetation Retention Riparian Management Area Distances
Stream Type | Large | Medium | Small | Upstream distance1 |
| Inner | Outer 2 | Inner | Outer 2 | Inner | Outer 2 | |
Type F or Type SSBT | 30 | 70 | 30 | 50 | 30 | 30 | N/A |
Type N | 30 | 45 | 30 | 30 | - | - | |
Type Np, Terminal | - | - | - | - | 20 | 20 | RH Max = 500 feet |
Type Np, Lateral | - | - | - | - | 20 | N/A | 250 feet |
Type D | 30 | | 30 | | 20 | | See OAR 629-643-0150 |
1 Upstream distance from either Type F or Type SSBT
2 Outer Zone shall retain 60 square feet of basal area per acre; apply OAR 629-643-0120
(3) The small forestland owner shall submit a standardized form to the State Forester when using the small forestland owner minimum option around seeps or springs.(4) In both Western Oregon and Eastern Oregon, if the tree retention area contains side channels and wetlands that extend beyond the riparian management areas described in Tables 3 and 4, the small forestland owner shall expand the tree retention area to entirely include any side channels and wetland plus at least 25 additional feet.Or. Admin. R. 629-643-0145
DOF 7-2022, adopt filed 11/21/2022, effective 1/1/2024Statutory/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