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The Oregon Administrative Rules contain OARs filed through June 15, 2014
 
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DEPARTMENT OF FORESTRY

 

DIVISION 625

FOREST ROADS

Road Construction and Maintenance

 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 629-625-0700 shall be known as the road construction and maintenance rules.

(3) The purpose of the road construction and maintenance rules is to establish standards for locating, designing, constructing and maintaining efficient and beneficial forest roads; locating and operating rock pits and quarries; and vacating roads, rock pits, and quarries that are no longer needed in manners that provide the maximum practical protection to maintain forest productivity, water quality, and fish and wildlife habitat.

(4) The road construction and maintenance rules shall apply to all forest practices regions unless otherwise indicated.

Stat. Auth.: ORS 527.710
Stats. Implemented: ORS 527.715 & 527.765
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97; DOF 2-2013, f. 7-11-13, cert. ef. 9-1-13

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 plan is required in the sections listed below.

(2) In addition to the requirements of the water protection rules, operators must submit a written plan to the State Forester before:

(a) Constructing a road where there is an apparent risk of road-generated materials entering waters of the state from direct placement, rolling, falling, blasting, landslide or debris flow;

(b) Conducting machine activity in Type F or Type D streams, lakes or significant wetlands; or

(c) Constructing roads in riparian management areas.

(3) Operators shall submit a written plan to the State Forester before constructing roads on high landslide hazard locations. Operators and the State Forester shall share responsibility to identify high landslide hazard locations and to determine if there is public safety exposure from shallow, rapidly moving landslides using methods described in OAR 629-623-0000 through 0300. If there is public safety exposure, then the practices described in 629-623-0400 through 0800 shall also apply.

(4) In addition to the requirements of the water protection rules, operators shall submit a written plan to the State Forester before placing woody debris or boulders in stream channels for stream enhancement.

Stat. Auth.: ORS 527.710(2)
Stats. Implemented: ORS 527.630(3), 527.765 & 527.714
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97; DOF 12-2002, f. 12-9-02 cert. ef. 1-1-03; DOF 6-2005(Temp), f. & cert. ef. 8-2-05 thru 1-27-06; DOF 8-2005, f. 12-13-05, cert. ef. 1-1-06

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.

(2) When locating roads, operators shall designate road locations which minimize the risk of materials entering waters of the state and minimize disturbance to channels, lakes, wetlands and floodplains.

(3) Operators shall avoid locating roads on steep slopes, slide areas, high landslide hazard locations, and in wetlands, riparian management areas, channels or floodplains where viable alternatives exist.

(4) Operators shall minimize the number of stream crossings.

(5) To reduce the duplication of road systems and associated ground disturbance, operators shall make use of existing roads where practical. Where roads traverse land in another ownership and will adequately serve the operation, investigate options for using those roads before constructing new roads.

Stat. Auth.: ORS 527.710(2)
Stats. Implemented: ORS 527.630(3), ORS 527.765 & ORS 527.714
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97; DOF 12-2002, f. 12-9-02 cert. ef. 1-1-03

629-625-0300

Road Design

(1) The purpose of OARs 629-625-0300 through 629-625-0340 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 that which will safely accommodate the anticipated use of the road and will also protect waters of the state.

Stat. Auth.: ORS 527.710
Stats. Implemented: ORS 527.715 & ORS 527.765
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97

629-625-0310

Road Prism

(1) Operators shall use variable grades and alignments to avoid less suitable terrain so that 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 requirements allow.

(2) Operators shall end-haul excess material from steep slopes or high landslide hazard locations where needed to prevent landslides.

(3) Operators shall design roads no wider than necessary to accommodate the anticipated use.

(4) Operators shall design cut and fill slopes to minimize the risk of landslides.

(5) Operators shall stabilize road fills as needed to prevent fill failure and subsequent damage to waters of the state using compaction, buttressing, subsurface drainage, rock facing or other effective means.

Stat. Auth.: ORS 527.710(2)
Stats. Implemented: ORS 527.630(3), ORS 527.765 & ORS 527.714
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97; DOF 12-2002, f. 12-9-02 cert. ef. 1-1-03

629-625-0320

Stream Crossing Structures

(1) Operators shall design and construct stream crossing structures (culverts, bridges and fords) to:

(a) Minimize excavation of side slopes near the channel.

(b) Minimize the volume of material in the fill.

(A) Minimizing fill material is accomplished by restricting the width and height of the fill to the amount needed for safe use of the road by vehicles, and by providing adequate cover over the culvert or other drainage structure.

(B) Fills over 15 feet deep contain a large volume of material that can be a considerable risk to downstream beneficial uses if the material moves downstream by water. Consequently, for any fill over 15 feet deep operators shall submit to the State Forester a written plan that describes the fill and drainage structure design. Written plans shall include a design that minimizes the likelihood of:

(i) Surface erosion;

(ii) Embankment failure; and

(iii) Downstream movement of fill material.

(c) Prevent erosion of the fill and channel.

(2) Operators shall design and construct stream crossings (culverts, bridges, and fords) to:

(a) Pass a peak flow that at least corresponds to the 50-year return interval. When determining the size of culvert needed to pass a peak flow corresponding to the 50-year return interval, operators shall select a size that is adequate to preclude ponding of water higher than the top of the culvert; and

(b) Allow migration of adult and juvenile fish upstream and downstream during conditions when fish movement in that stream normally occurs.

(3) An exception to the requirements in subsection (2)(a) of this rule is allowed to reduce the height of fills where roads cross wide flood plains. Such an exception shall be allowed if the operator obtains approval of a plan for an alternate practice. The State Forester will approve such a plan when the plan demonstrates:

(a) The stream crossing site includes a wide flood plain; and

(b) The stream crossing structure matches the size of the active channel and is covered by the minimum fill necessary to protect the structure;

(c) Except for culvert cover, soil fill is not placed in the flood plain; and

(d) The downstream edge of all fill is armored with rock of sufficient size and depth to protect the fill from eroding when a flood flow occurs.

Stat. Auth.: ORS 527.710
Stats. Implemented: ORS 527.674, 527.715 & 527.765
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97; DOF 6-2005(Temp), f. & cert. ef. 8-2-05 thru 1-27-06; DOF 8-2005, f. 12-13-05, cert. ef. 1-1-06

629-625-0330

Drainage

(1) The purpose of this rule is to provide a drainage system on new and reconstructed roads that minimizes alteration of stream channels and the risk of sediment delivery to waters of the state. Drainage structures should be located based on the priority listed below. When there is a conflict between the requirements of sections (2) through (6) of this rule, the lowest numbered section takes precedence, and the later-numbered and conflicting section shall not be implemented.

(2) Operators shall not concentrate road drainage water into headwalls, slide areas, high landslide hazard locations, or steep erodible fillslopes.

(3) Operators shall not divert water from stream channels into roadside ditches.

(4) Operators shall install dips, water bars, or cross drainage culverts above and away from stream crossings so that road drainage water may be filtered before entering waters of the state.

(5) Operators shall provide drainage when roads cross or expose springs, seeps, or wet areas.

(6) Operators shall provide a drainage system using grade reversals, surface sloping, ditches, culverts and/or waterbars as necessary to minimize development of gully erosion of the road prism or slopes below the road.

Stat. Auth.: ORS 527.710(2)
Stats. Implemented: ORS 527.630(3), ORS 527.765 & ORS 527.714
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97 DOF 12-2002, f. 12-9-02 cert. ef. 1-1-03

629-625-0340

Waste Disposal Areas

Operators shall select stable areas for the disposal of end-haul materials, and shall prevent overloading areas which may become unstable from additional material loading.

Stat. Auth.: ORS 527.710
Stats. Implemented: ORS 527.715 & ORS 527.765
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97

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.

Stat. Auth.: ORS 527.710
Stats. Implemented: ORS 527.715 & ORS 527.765
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97

629-625-0410

Disposal of Waste Materials

Operators shall not place debris, sidecast, waste, and other excess materials associated with road construction in locations where these materials may enter waters of the state during or after construction.

Stat. Auth.: ORS 527.710
Stats. Implemented: ORS 527.715 & ORS 527.765
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97

629-625-0420

Drainage

(1) Operators shall clear channels and ditches of slash and other road construction debris which interferes with effective roadway drainage.

(2) Operators shall provide effective cross drainage on all roads, including temporary roads.

(3) Operators shall install drainage structures on flowing streams as soon as feasible.

(4) Operators shall effectively drain uncompleted roads which are subject to erosion.

(5) Operators shall remove berms on the edges of roads or provide effective drainage through these berms, except for those berms intentionally designed to protect road fills.

Stat. Auth.: ORS 527.710
Stats. Implemented: ORS 527.715 & ORS 527.765
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97

629-625-0430

Stream Protection

(1) When constructing stream crossings, operators shall minimize disturbance to banks, existing channels, and riparian management areas.

(2) In addition to the requirements of the water protection rules, operators shall keep machine activity in beds of streams to an absolute minimum. Acceptable activities where machines are allowed in streambeds, such as installing culverts, shall be restricted to periods of low water levels. Operators shall submit a written plan to the State Forester for machine activity in Type F or Type D streams, lakes, and significant wetlands.

(3) For all roads constructed or reconstructed operators shall install water crossing structures where needed to maintain the flow of water and passage of adult and juvenile fish between side channels or wetlands and main channels.

(4) Operators shall leave or re-establish areas of vegetation between roads and waters of the state to protect water quality.

(5) Operators shall remove temporary stream crossing structures promptly after use, and shall construct effective sediment barriers at approaches to channels.

Stat. Auth.: ORS 527.710
Stats. Implemented: ORS 527.674, 527.715 & 527.765
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97; DOF 6-2005(Temp), f. & cert. ef. 8-2-05 thru 1-27-06; DOF 8-2005, f. 12-13-05, cert. ef. 1-1-06

629-625-0440

Stabilization

(1) Operators shall stabilize exposed material which is potentially unstable or erodible by use of seeding, mulching, riprapping, leaving light slashing, pull-back, or other effective means.

(2) During wet periods operators shall construct roads in a manner which prevents sediment from entering waters of the state.

(3) Operators shall not incorporate slash, logs, or other large quantities of organic material into road fills.

Stat. Auth.: ORS 527.710
Stats. Implemented: ORS 527.715 & ORS 527.765
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97

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 locate quarry sites in channels.

(3) When using rock pits or quarries, operators shall prevent overburden, solid wastes, or petroleum products from entering waters of the state.

(4) Operators shall stabilize banks, headwalls, and other surfaces of quarries and rock pits to prevent surface erosion or landslides.

(5) When a quarry or rock pit is inactive or vacated, operators shall leave it in the conditions described in section (4) of this rule, shall remove from the forest all petroleum-related waste material associated with the operation, and shall dispose of all other debris so that such materials do not enter waters of the state.

Stat. Auth.: ORS 527.710
Stats. Implemented: ORS 527.715 & 527.765
Hist.: FB 40, f. 6-5-75, ef. 7-1-75; FB 5-1978, f. & ef. 6-7-78; FB 3-1994, f. 6-15-94, cert. ef. 9-1-94; FB 9-1996, f. 12-2-96, cert. ef. 1-1-97, Renumbered from 629-024-0111; DOF 2-2013, f. 7-11-13, cert. ef. 9-1-13

629-625-0600

Road Maintenance

(1) The purpose of this rule is to protect water quality by timely maintenance of all active and inactive roads.

(2) Operators shall maintain active and inactive roads in a manner sufficient both to provide a stable surface and to keep the drainage system operating as necessary to protect water quality.

(3) Operators shall inspect and maintain culvert inlets and outlets, drainage structures and ditches before and during the rainy season as necessary to diminish the likelihood of clogging and the possibility of washouts.

(4) Operators shall provide effective road surface drainage, such as water barring, surface crowning, constructing sediment barriers, or outsloping prior to the rainy and runoff seasons.

(5) When applying road oil or other surface stabilizing materials, operators shall plan and conduct the operation in a manner as to prevent entry of these materials into waters of the state.

(6) In the Northwest and Southwest Oregon Regions, operators shall maintain and repair active and inactive roads as needed to minimize damage to waters of the state. This may include maintenance and repair of all portions of the road prism during and after intense winter storms, as safety, weather, soil moisture and other considerations permit.

(7) Operators shall place material removed from ditches in a stable location.

(8) In order to maintain fish passage through water crossing structures, operators shall:

(a) Maintain conditions at the structures so that passage of adult and juvenile fish is not impaired during periods when fish movement normally occurs. This standard is required only for roads constructed or reconstructed after September 1994, but is encouraged for all other roads; and

(b) As reasonably practicable, keep structures cleared of woody debris and deposits of sediment that would impair fish passage.

(9) Where needed to protect water quality, as directed by the State Forester, operators shall place additional cross drainage structures on existing active roads within their ownership prior to hauling to meet the requirements of OAR 629-625-0330.

(10) Other fish passage requirements under the authority of ORS 509.580 through 509.910 and OAR 635-412-0005 through 635-412-0040 that are administered by other state agencies may be applicable to water crossing structures, including those constructed before September 1, 1994.

Stat. Auth.: ORS 527.710(2)
Stats. Implemented: ORS 527.630(3), 527.765 & 527.714
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97; DOF 12-2002, f. 12-9-02 cert. ef. 1-1-03; DOF 2-2013, f. 7-11-13, cert. ef. 9-1-13

629-625-0650

Vacating Forest Roads

(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 road, landowners shall effectively block the road to prevent continued use by vehicular traffic, and shall take all reasonable actions to leave the road in a condition where road-related damage to waters of the state is unlikely.

(3) Reasonable actions to vacate a forest road may include removal of stream crossing fills, pullback of fills on steep slopes, frequent cross ditching, and/or vegetative stabilization.

(4) Damage which may occur from a vacated road, consistent with Sections (2) and (3) of the rule, will not be subject to remedy under the provisions of the Oregon Forest Practices Act.

Stat. Auth.: ORS 527.710
Stats. Implemented: ORS 527.715 & 527.765
Hist.: FB 9-1996, f. 12-2-96, cert. ef. 1-1-97; DOF 2-2013, f. 7-11-13, cert. ef. 9-1-13

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 or Type D streams.

(2) Operators shall use durable surfacing or other effective measures that resist deep rutting or development of a layer of mud on top of the road surface on road segments that drain directly to streams on active roads that will be used for log hauling during wet periods.

(3) Operators shall cease active road use where the surface is deeply rutted or covered by a layer of mud and where runoff from that road segment is causing a visible increase in the turbidity of Type F or Type D streams as measured above and below the effects of the road.

Stat. Auth.: ORS 527.710(2)
Stats. Implemented: ORS 527.630(3), ORS 527.765 & ORS 527.714
Hist.: DOF 12-2002, f. 12-9-02 cert. ef. 1-1-03

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