Oregon Administrative Code

629-620-0400 Protection of the Waters of the State and Other Resources When Applying Chemicals (1) When applying chemicals aerially or from the ground, operators shall protect waters of the state and other forest resources by following the requirements of the chemical product lab…

629-620-0500 Disposal of Chemical Containers Operators shall dispose of chemical containers in accordance with the Department of Environmental Quality’s disposal requirements. Operators may apply flushing solution resulting from cleaning of chemical containers to the operation ar…

629-620-0600 Daily Records of Chemical Applications (1) Whenever pesticides are aerially applied or applied using a pressurized, ground-based, broadcast application system on forestland, the operator shall maintain a daily record of application operations which includes: (a) The …

629-620-0700 Chemical and Other Petroleum Product Rules: Effectiveness Monitoring and Evaluation (1) In cooperation with state agencies, landowners, and other interested parties, the department shall conduct monitoring to evaluate the effectiveness of the chemical and other petro…

629-620-0800 Notification of Community Water System Managers When Applying Chemicals (1) The purpose of this rule is to ensure that community water system managers are appropriately notified of planned chemical operations so that they can coordinate their monitoring activities wi…

629-623-0000 Purpose (1) Shallow, rapidly moving landslides may be a public safety risk affected by forest operations. There is a high natural landslide hazard in certain locations. In the short term, forest practices regulations can reduce the risk to people who are present in l…

629-623-0100 Screening for High Landslide Hazard Locations and Exposed Population Screening for High Landslide Hazard Locations and Exposed Population (1) The State Forester will use further review area maps and/or other information to screen proposed operations for high landslid…

629-623-0200 Exposure Categories (1) The State Forester will verify the information provided by operators in OAR 629-623-0100 and use this information to determine the exposure category for the operation. (2) Exposure Category A includes habitable residences, schools, and other b…

629-623-0250 Shallow, Rapidly Moving Landslide Impact Rating (1) The State Forester will publish technical guidance for evaluating and rating shallow, rapidly moving landslide impact potential for any exposed population. Impact rating factors may include, but are not limited to: …

629-623-0300 Public Safety Risk Levels (1) The exposure categories described in OAR 629-623-0200 and the impact rating described in 629-623-0250 are used to determine the downslope public safety risk level and the applicable forest practice rules that apply to the operation, as d…

629-623-0400 Restriction of Timber Harvesting — Substantial Public Safety Risk (1) Operators shall not remove trees from high landslide hazard locations with substantial downslope public safety risk unless a geotechnical report demonstrates to the State Forester that any landslid…

629-623-0450 Restriction of Road Construction — Substantial Public Safety Risk (1) Operators shall not construct new roads on high landslide hazard locations or other very steep slopes with substantial downslope public safety risk. (2) Operators may reconstruct existing roads in …

629-623-0500 Timber Harvesting — Intermediate Public Safety Risk (1) The purpose of this rule is to manage canopy closure on high landslide hazard locations with intermediate downslope public safety risk. (2) For harvesting operations that remove all or most of the largest trees,…

629-623-0550 Road Construction — Intermediate Public Safety Risk (1) When constructing roads on high landslide hazard locations or other very steep slopes with intermediate downslope public safety risk, operators shall follow site-specific practices as directed by a geotechnical …

629-623-0600 Protection Along Debris Torrent-Prone Streams (1) The purpose of this rule is to reduce or eliminate woody debris loading, and to retain large standing trees in locations where they might slow debris torrent movement along debris torrent-prone streams with substantia…

629-623-0700 Written Plans to Evaluate Public Safety Risk (1) To allow evaluation of public safety risk and the appropriate methods for reducing this risk, operators shall submit a written plan for all timber harvesting or road construction operations with intermediate or substan…

629-623-0800 Hazard Mitigation and Risk Reduction Projects (1) Completed landslide mitigation projects can be used to lower the shallow, rapidly moving landslide impact rating as described in OAR 629-623-0250. (a) The landowners who own structures and are directly affected by the…

629-625-0000 Purpose (1) Forest roads are essential to forest management and contribute to providing jobs, products, tax base, and other social and economic benefits. (2) OAR 629-625-0000 through 629-625-0920 shall be known as the road construction and maintenance rules. (3) The …

629-625-0100 Written Plans for Road Construction (1) A properly located, designed, and constructed road greatly reduces potential impacts to water quality, forest productivity, fish, and wildlife habitat. To prevent improperly located, designed, or constructed roads, a written pl…

629-625-0200 Road Location (1) The purpose of this rule is to ensure roads are located where potential impacts to waters of the state are minimized and hydrologic connectivity between roads and waters of the state is reduced to the maximum extent practicable. (2) When locating ro…

629-625-0300 Road Design (1) The purpose of OAR 629-625-0300 through 629-625-0330 is to provide design specifications for forest roads that protect water quality. (2) Operators shall design and construct roads to limit the alteration of natural slopes and drainage patterns to tha…

629-625-0310 Road Prism (1) Operators shall use variable grades and alignments to avoid less suitable terrain so the road prism is the least disturbing to protected resources, avoids steep sidehill areas, wet areas, and potentially unstable areas as safe, effective vehicle use re…

629-625-0320 Water Crossing Structures (1) Operators shall design and construct all water crossing structures in all typed waters and lakes, bays, ponds, impounding reservoirs, springs, rivers, streams, creeks, estuaries, marshes, wetlands, inlets, and canals to: (a) Minimize exc…

629-625-0330 Drainage (1) All active, inactive, and vacated forest roads and landings shall be hydrologically disconnected to the maximum extent practicable from waters of the state to minimize sediment delivery from road runoff and reduce the potential for hydrological changes t…

629-625-0400 Road Construction OARs 629-625-0400 through 629-625-0440 provide standards for disposal of waste materials, drainage, stream protection, and stabilization to protect water quality during and after road construction. Statutory/Other Authority: ORS 527.710 Statutes/Oth…

629-625-0410 Disposal of Waste Materials (1) Operators shall place debris, sidecast, waste, and other excess materials associated with constructing, maintaining, or vacating roads in stable locations outside of the riparian management area where these materials may not enter all …

629-625-0440 Stabilization (1) Operators shall establish effective drainage and stabilize exposed material, which is potentially unstable or erodible to avoid potential delivery of sediment to waters of the state, by use of seeding, mulching, riprapping, leaving light slash, pull…

629-625-0500 Rock Pits and Quarries (1) The development, use, and abandonment of rock pits or quarries which are located on forestland and used for forest management shall be conducted using practices which maintain stable slopes and protect water quality. (2) Operators shall not…

629-625-0600 Road Maintenance (1) The purpose of this rule is to protect water quality and ensure hydrologic disconnection of roads from waters of the state to the maximum extent practicable by timely maintenance of all active and inactive roads. Road surface must be maintained a…

629-625-0650 Vacating Forest Roads and Water Crossings (1) The purpose of this rule is to ensure that when landowners choose to vacate roads under their control, the roads are left in a condition where road-related damage to waters of the state is unlikely. (2) To vacate a forest…

629-625-0700 Wet Weather Road Use (1) The purpose of this rule is to reduce delivery of fine sediment to streams caused by the use of forest roads during wet periods that may adversely affect downstream water quality in Type F, Type SSBT or Type D streams. (2) Operators shall use…

629-625-0800 Construction in Wetlands Avoid or minimize all road and landing construction near or within significant wetlands as described in OAR 629-680-0310, stream-associated wetlands, or wetlands greater than 0.25 acres in size. Where impacts are unavoidable, operators must f…

629-625-0900 Forest Road Inventory and Assessment (1) The purpose of the Forest Road Inventory and Assessment (FRIA) is to reduce chronic and catastrophic sediment entry to waters of the state and to ensure passage for covered species during all mobile life-history stages by iden…

629-625-0910 State-led Abandoned Roads Inventory (1) The department in consultation with the U.S. Environmental Protection Agency shall lead a cooperative effort to identify abandoned roads. The purpose of this effort is to identify abandoned roads and bring them into compliance …

629-625-0920 Road Condition Assessment (1) The purpose of this rule is to ensure that roads used for harvest and owned by small forestland owners, as defined by OAR 629-600-0100, comply with the standards of the Forest Practices Rules. (2) The requirements of the Forest Road Inve…

629-630-0000 Purpose (1) OAR 629-630-0000 through 629-630-0925 shall be known as the harvesting rules. (2) Harvesting of forest tree species is an integral part of forest management by which wood for human use is obtained and by which forests are established and tended. (3) Harve…

629-630-0100 Skidding and Yarding Practices (1) For each harvesting operation, operators shall select a logging method and type of equipment appropriate to the given slope, landscape, and soil properties in order to minimize soil deterioration and to protect water quality. (2) Op…

629-630-0150 Ground-Based Harvesting On Steep Or Erosion-Prone Slopes (1) Slopes over 60 percent are subject to the requirements of Sections (3) through (8) of this rule. (2) Slopes over 40 percent where soils consist of decomposed granite-type materials, or other highly erodible…

629-630-0200 Landings (1) Operators shall minimize the size of landings to that necessary for safe operation. (2) Operators shall locate landings on stable areas so as to minimize the risk of material entering waters of the state. (3) Operators shall avoid locating landings in ri…

629-630-0300 Drainage Systems (1) Operators shall construct dips, grade reversals or other effective water diversions in skid trails and fire trails as necessary to minimize soil displacement and to ensure runoff water is filtered before entering waters of the state. (2) Operator…

629-630-0400 Treatment of Waste Materials (1) Operators shall leave or place all debris, slash, sidecast and other waste material associated with harvesting in such a manner to prevent their entry into waters of the state. (2) Where sidecast material or exposed soils are potentia…

629-630-0500 Harvesting On High Landslide Hazard Locations (1) Operators and the State Forester shall share responsibility to identify high landslide hazard locations for timber harvesting and road construction to protect natural resources and public safety. (2) For operations wi…

629-630-0600 Felling; Removal of Slash (1) Operators shall fell, buck, and limb trees in ways that minimize disturbance to channels, soils and retained vegetation in riparian management areas, streams, lakes and all wetlands greater than one-quarter acre, and that minimize slash …

629-630-0700 Yarding; Cable 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 disturbance to beds and banks of streams, lakes, all wetlands larger than one-qua…

629-630-0800 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 tha…

629-630-0900 Western Oregon Harvests; Slopes Model (1) For the purpose of OAR 629-630-0905 through 629-630-0925, designated debris flow traversal areas and designated sediment source areas are determined by the slopes model and displayed on department maps and the department’s re…

629-630-0905 Western Oregon Harvesting; Standard Practice; Designated Debris Flow Traversal Areas (1) For Western Oregon, operators shall not harvest timber located in designated debris flow traversal areas. (2) Operators shall retain all trees within 25 feet slope distance from …

629-630-0910 Western Oregon Harvesting; Standard Practice; Designated Sediment Source Areas and Slope Retention Areas (1) Slope retention areas encompass field identified headwalls. The department shall publish Forest Practices Technical Guidance to explain how to implement this …

629-630-0915 Statewide Harvesting; Standard Practice; Stream Adjacent Failures (1) Operators shall extend the riparian management areas, described in OAR 629-643-0100 and OAR 629-643-0120, on all identified stream adjacent failures, as defined in OAR 629-600-0100. The riparian ma…

629-630-0920 Small Forestland Owner Minimum Option; Harvesting on Features Identified in the Slopes Model and Stream Adjacent Failures (1) Western Oregon, Designated Debris Flow Traversal Areas for harvest type 1, harvest type 2 or harvest type 3 operations. For forestlands in We…