36 CFR Part 1191 ABA Accessibility Guidelines, Outdoor Developed Areas - Preamble

Appendix D to 36 CFR part 1191 – Technical

Chapter 10: Recreation Facilities

The final rule adds technical requirements to Chapter 10 for outdoor constructed features (1011); parking spaces within camping units and picnic units and pull-up spaces at dump stations (1012); tent pads and tent platforms (1013); camp shelters (1014); viewing areas (1015); outdoor recreation access routes (1016); trails (1017); and beach access routes (1018). The final rule also adds the conditions for using the exceptions to the specific provisions in these technical requirements at 1019.

1011 Outdoor Constructed Features

1011.1 General

This section contains the technical requirements for outdoor constructed features provided within camping facilities, picnic facilities, viewing areas, and trailheads or on trails. All outdoor constructed features are required to comply with the provisions for clear ground space (1011.2) and operable parts (1011.3). The section includes specific provisions for picnic tables (1011.4); fire rings, grills, fireplaces, and woodstoves (1011.5); water spouts at water hydrants and water utility hook-ups (1011.6); outdoor rinsing showers (1011.7); and viewing scopes (1011.8).

1011.2 Clear Ground Space

This section requires a clear ground space to be provided at outdoor constructed features and includes specific provisions for the size and location (1011.2.1), surface (1011.2.2), slope (1011.2.3), and openings (1011.2.4).

1011.2.1 Size and Location

This section specifies the size and location of the clear ground space at outdoor constructed features. The size of the clear ground space is based on the dimensions for maneuvering clearance at clear floor or ground spaces that are confined on all or part of three sides in 305.7 of the Architectural Barriers Act Accessibility Guidelines. Outdoor constructed features can be confined on all or part of three sides by surfaces that are not firm and stable or that have changes in level. The dimensions for maneuvering clearance at clear floor or ground spaces that are confined on all or part of three sides in 305.7 of the Architectural Barriers Act Accessibility Guidelines provide additional space for maneuvering into and out of the space: 36 inches minimum by 48 inches minimum for a forward approach, and 30 inches minimum by 60 inches minimum for a parallel approach. At water hydrants, a clear ground space for a forward approach is required on each side of the water hydrant to enable individuals with disabilities to operate the water hydrant from their right side or left side. At rinsing showers, the size of the clear ground space is based on the dimensions for turning space in 304.3.1 of the Architectural Barriers Act Accessibility Guidelines to enable individuals with disabilities to turn in the space.

At picnic tables, fire rings, grills, fireplaces, and woodstoves, a clear ground space is required on all usable sides of the element. The usable sides of these elements are the sides that can be used for eating or serving food, building a fire, or cooking. All sides of picnic tables are generally usable, unless the picnic table is placed against a rock or tree that renders the side against the rock or tree not usable. All sides of fire rings and grills are generally usable, unless there is a wall or other structure on a side that renders the side not usable. The front sides of fireplaces and woodstoves are generally the usable side.

1011.2.2 Surface

This section requires the surface of the clear ground space to be firm and stable.

1011.2.3 Slope

This section requires the slope of the clear ground space to not be steeper than 1:48 in any direction. Where the surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 are permitted when necessary for drainage.

1011.2.4 Openings

This section requires openings in the clear ground space such as drainage grates to not allow passage of a sphere more than 1/2 inch in diameter. Where possible, drainage grates should be located outside of the clear ground space. Elongated openings should be placed so that the long dimension is perpendicular, or as close to perpendicular as possible, to the dominant direction of travel.

1011.3 Operable Parts

This section requires operable parts of outdoor constructed features to comply with the technical requirements for the height of operable parts in 309.3 of the Architectural Barriers Act Accessibility Guidelines, which require operable parts to be placed within the reach ranges specified in 308 of the Architectural Barriers Act Accessibility Guidelines; and the technical requirements for operation in 309.4 of the Architectural Barriers Act Accessibility Guidelines, which require operable parts to be operable with one hand without tight grasping, pinching, or twisting of the wrist and with not more than 5 pounds force.

Four exceptions are provided. Exception 1 requires fire rings, grills, fireplaces, wood stoves, water hydrants, and water utility hook-ups to comply with the technical requirements for operation in 309.4 of the Architectural Barriers Act Accessibility Guidelines to the extent practicable. Exception 2 requires trash and recycling receptacles with hinged lids and controls to keep out large animals to comply with the technical requirements for operation in 309.4 of the Architectural Barriers Act Accessibility Guidelines to the extent practicable. Exception 3 exempts dumpster type trash and recycling receptacles from complying with the technical requirements for the height of operable parts in 309.3 of the Architectural Barriers Act Accessibility Guidelines and the technical requirements for operation in 309.4 of the Architectural Barriers Act Accessibility Guidelines. Exception 4 exempts sewage hatches from complying with the technical requirements for the height of operable parts in 309.3 of the Architectural Barriers Act Accessibility Guidelines and the technical requirements for operation in 309.4 of the Architectural Barriers Act Accessibility Guidelines.

New products may be developed with operable parts that comply with the technical requirements for operation in 309.4 of the Architectural Barriers Act Accessibility Guidelines. As products that comply with the technical requirements for operation in 309.4 of the Architectural Barriers Act Accessibility Guidelines become available, entities should provide these products to enable individuals with disabilities to operate them.

1011.4 Picnic Tables

This section requires picnic tables to comply with the technical requirements for dining surfaces in 902.3 of the Architectural Barriers Act Accessibility Guidelines, which requires the tops of dining surfaces to be 28 inches minimum and 34 inches maximum above the ground. The section also requires at least one wheelchair space to be provided for each 24 linear feet of usable picnic table surface perimeter. Wheelchair spaces are required to be 30 inches minimum by 48 inches minimum; be positioned for a forward approach to the table; and provide knee and toe clearance complying with 306 of the Architectural Barriers Act Accessibility Guidelines under the table.

1011.5 Fire Rings, Grills, Fireplaces, and Wood Stoves

This section requires fire building surfaces to be 9 inches minimum above the ground, and cooking surfaces to be 15 inches minimum and 34 inches maximum above the ground. Where fire rings, grills, or fireplaces are constructed with raised edges or walls, the depth of the raised edge or wall is required to be 10 inches maximum. Fire rings with double walls or insulation on the sides are recommended to prevent burns.

1011.6 Water Spouts

This section requires water spouts at water hydrants and water utility hook-ups to be 28 inches minimum and 36 inches maximum above the ground.

1011.7 Outdoor Rinsing Showers

This section requires outdoor rinsing showers to provide at least one hand-held shower spray unit with a hose 59 inches long minimum. The hand-held shower spray unit is required to have at least one fixed position located 15 inches minimum and 48 inches maximum above the ground. Where vandalism is a consideration, a fixed shower head located 48 inches above the ground is permitted in place of a hand-held shower spray unit.

1011.8 Viewing Scopes

This section requires eyepieces on viewing scopes to be 43 inches minimum and 51 inches maximum above the ground.

1012 Parking Spaces Within Camping Units and Picnic Units and Pull-Up Spaces at Dump Stations

1012.1 General

This section contains the technical requirements for parking spaces provided within camping units and picnic units with mobility features and pull-up spaces for recreational vehicles at dump stations. The technical requirements address the width of parking spaces and pull-up spaces for recreational vehicles (1012.2); the width of parking spaces for vehicles, other than recreational vehicles (1012.3); and the surface (1012.4) and slope (1012.5) of parking spaces and pull-up spaces.

1012.2 Recreational Vehicles

This section requires parking spaces and pull-up spaces for recreational vehicles to be 20 feet wide minimum to accommodate recreational vehicles equipped with a lift. Recreational vehicles are typically 8 feet wide. Recreational vehicles equipped with a lift need an additional 8 feet of space on the passenger’s side to deploy the lift and for individuals who use wheeled mobility devices to maneuver onto and off of the lift. Utility hook-ups for recreational vehicles are typically located on the driver’s side of the vehicle. An additional 4 feet of space is needed on the driver’s side for individuals who use wheeled mobility devices to access the utility hook-ups. Where two adjacent parking 41 spaces are provided for recreational vehicles, one of the parking spaces is permitted to be 16 feet wide minimum.

1012.3 Other Vehicles

This section requires parking spaces for vehicles, other than recreational vehicles, to be 16 feet wide minimum to accommodate vans equipped with a lift or ramp. Where two adjacent parking spaces are provided for vehicles, other than recreational vehicles, one of the parking spaces is permitted to be 8 feet wide minimum.

1012.4 Surface

This section requires the surface of parking spaces and pull-up spaces to be firm and stable.

1012.5 Slope

This section requires the slope of the surface of parking spaces and pull-up spaces to not be steeper than 1:48 in any direction. Where the surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 are permitted when necessary for drainage.

1013 Tent Pads & Tent Platforms

1013.1 General

This section contains the technical requirements for tent pads and tent platforms provided within camping units with mobility features. Tent pads and tent platforms are defined spaces with prepared surfaces for setting up and securing tents. The technical requirements address the clear ground space around tent pads and tent platforms (1013.2); the slope of tent pads, tent platforms, and clear ground spaces (1013.2); and the height of tent platforms (1013.4). When an entity determines that a condition in 1019 does not permit full compliance with a specific provision in 1013, the tent pad or tent platform is permitted to comply with the provision to the extent practicable.

1013.2 Clear Ground Space

This section requires a clear ground space 4 feet wide minimum to be provided on all usable sides of tent pads and tent platforms to enable individuals who use wheeled mobility devices to set up and take down the tent. The usable sides of tent pads and tent platforms are the sides that can be used when setting up and taking down a tent. All sides of tent pads and tent platforms are generally usable, unless a tent pad or tent platform is located next to a natural feature such as a rock or tree that renders a side not usable. This section also requires the surface of the clear ground space to be firm and stable and to allow the use of tent stakes or other tent securement devices.

1013.3 Slope

This section requires the slope of the surface of tent pads, tent platforms, and clear ground spaces to not be steeper than 1:48 in any direction. Where the surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 are permitted when necessary for drainage.

1013.4 Height

This section requires tent platforms to be 19 inches high maximum measured from the clear ground space to the tent platform surface.

1014 Camp Shelters

1014.1 General

This section contains the technical requirements for camp shelters with mobility features. The technical requirements address the entrance to camp shelters (1014.2), including transfer access (1014.2.1) and roll-in access (1014.2.2); and the floor within camp shelters (1014.3).

Two exceptions are provided. When an entity determines that a condition in 1019 does not permit full compliance with a specific provision in 1014, Exception 1 permits the camp shelter to comply with the provision to the extent practicable. Exception 2 does not require camp shelters to comply with the technical requirements for protruding objects in 307 of the Architectural Barriers Act Accessibility Guidelines.

1014.2 Entrance

This section requires camp shelters to provide either transfer access or roll-in access at the entrance to the camp shelter.

1014.2.1 Transfer Access

Where transfer access is provided, this section requires a clear ground space 36 inches minimum by 48 inches minimum positioned for a parallel approach to be provided at the entrance to the camp shelter, and one full unobstructed side of the clear ground space to adjoin or overlap an outdoor recreation access route or trail, as applicable, or another clear ground space. The surface of the clear ground space is required to be firm and stable, and to slope not steeper than 1:48 in any direction. Where the surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 are permitted when necessary for drainage. The camp shelter floor at the entrance is required to be 19 inches high maximum measured from the clear ground space. These requirements enable individuals who use wheeled mobility devices to transfer from their mobility device to the shelter floor

1014.2.2 Roll-in Access

Where roll-in access is provided, this section requires a level or sloped entry route complying with the technical requirements for outdoor recreation access routes in 1016 or trails in 1017, as applicable, at the entrance to the camp shelter. The section also requires a turning space complying with 304.3 of the Architectural Barriers Act Accessibility Guidelines to be provided within the camp shelter. These requirements enable individuals who use wheeled mobility devices to enter the shelter in their mobility device.

1014.3 Floor

This section requires the floor surface within camp shelters to be firm and stable and to slope not steeper than 1:48 in any direction. Where the floor surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 are permitted when necessary for drainage.

1015 Viewing Areas

1015.1 General

This section contains the technical requirements for viewing areas. The technical requirements address the clear ground space (1015.2) and viewing space (1015.3) at distinct viewing locations; the turning space within viewing areas (1015.4); and the surface (1015.5) and slope (1015.6) of the clear ground space and turning space. In alterations, when an entity determines that a condition in 1019 does not permit full compliance with a specific provision in 1015, the viewing area is permitted to comply with the provision to the extent practicable.

1015.2 Clear Ground Space

This section requires a clear ground space 36 inches minimum by 48 inches minimum positioned for either a forward or parallel approach to be provided at each distinct viewing location, and one full unobstructed side of the clear ground space to adjoin or overlap an outdoor recreation access route or trail, as applicable, or another clear ground space.

1015.3 Viewing Space

This section requires each distinct viewing location to provide a viewing space adjacent to the clear ground space required by 1015.2 through which the point of interest is viewable. The viewing space is required to be 32 inches maximum and 51 inches minimum high above the ground and extend the full width of the clear ground space. Guards or similar safety barriers are permitted to obstruct the viewing space to the extent the obstruction is necessary for the guard or safety barrier to serve its intended purpose.

1015.4 Turning Space

This section requires a turning space complying with 304.3 of the Architectural Barriers Act Accessibility Guidelines to be provided within the viewing area.

1015.5 Surface

This section requires the surface of the clear ground space and turning space to be firm and stable.

1015.6 Slope

This section requires the slope of the surface of the clear ground space and turning space to not be steeper than 1:48 in any direction. Where the surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 are permitted when necessary for drainage.

1016 Outdoor Recreation Access Routes

1016.1 General

This section contains the technical requirements for outdoor recreation access routes. The technical requirements address the surface of outdoor recreation access routes, passing spaces, and resting intervals (1016.2); the clear width of outdoor recreation access routes (1016.3); passing spaces (1016.4); obstacles (1016.5); openings (1016.6); slopes, including running slope (1016.7.1) and cross slope (1016.7.2); resting intervals (1016.8); and protruding objects (1016.9).

Three exceptions are provided. Exception 1 applies to alterations of existing camping facilities, picnic facilities, and trailheads. Exception 2 applies to new construction and alterations of viewing areas. When an entity determines that a condition in 1019 does not permit full compliance with a specific provision in 1016 on a portion of an outdoor recreation access route, Exceptions 1 and 2 permit the portion of the outdoor recreation access route to comply with the provision to the extent practicable. Exception 3 exempts outdoor recreation access routes that are provided within vehicular ways from complying with the technical requirements for passing spaces (1016.4); running slope (1016.7.1) and cross slope (1016.7.2); and resting intervals (1016.8).

1016.2 Surface

This section requires the surface of outdoor recreation access routes, passing spaces, and resting intervals to be firm and stable.

1016.3 Clear Width

This section requires the clear width of outdoor recreation access routes to be 36 inches minimum.

1016.4 Passing Spaces

This section requires passing spaces to be provided at intervals of 200 feet maximum where the clear width of outdoor recreation access routes is less than 60 inches. Entities should consider providing either 60 inches minimum clear width on outdoor recreation access routes or passing spaces at shorter intervals where the route is heavily used or adjoins elements, spaces, or facilities that are heavily used; or where the route is a boardwalk or otherwise not at the same level as the adjoining ground surface.

Passing spaces are required to be:

• A space 60 inches minimum by 60 inches minimum; or

• The intersection of two outdoor recreation access routes providing a T-shaped space complying with 304.3.2 of the Architectural Barriers Act Accessibility Guidelines where the base and the arms of the T-shaped space extend 48 inches minimum beyond the intersection.

Where the intersection of two outdoor recreation access routes serves as a passing space, the vertical alignment of the routes at the intersection that form the T-shaped space is required to be nominally planar (i.e., as flat as possible) so that all the wheels of a mobility device touch the ground when turning into and out of the passing space.

Passing spaces and resting intervals are permitted to overlap. Where passing spaces and resting intervals overlap, the technical requirements for resting intervals in 1016.8.3 require the slope of the surface to not be steeper than 1:48 in any direction. Where the surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 are permitted when necessary for drainage. Otherwise, passing space surfaces have the same slopes as the adjoining outdoor recreation access route.

1016.5 Obstacles

This section contains technical requirements for obstacles on outdoor recreation access routes, passing spaces, and resting intervals. The vertical alignment of joints in concrete, asphalt, or board surfaces on outdoor recreation access routes can be obstacles. Natural features such as tree roots and rocks on outdoor recreation access routes also can be obstacles. Where an outdoor recreation access route is provided within a vehicular way, traffic calming devices can be obstacles. This section requires obstacles to not exceed 1/2 inch in height measured vertically to the highest point. Where the surface is other than concrete, asphalt, or boards, obstacles are permitted to not exceed 1 inch in height measured vertically to the highest point.

The frequency of obstacles and obstacles that cross the full width of outdoor recreation access routes can make travel difficult for individuals who use wheeled mobility devices. Where possible, obstacles that cross the full width of outdoor recreation access routes should be separated by 48 inches minimum so individuals who use wheeled mobility devices can cross the obstacle before confronting another obstacle.

1016.6 Openings

This section requires openings in the surface of outdoor recreation access routes, passing spaces, and resting intervals such as spaces between the boards in a boardwalk and drainage grates to not allow passage of a sphere more than 1/2 inch in diameter. Where possible, drainage grates should be located outside the minimum clear width of the recreation access route. Elongated openings should be placed so that the long dimension is perpendicular, or as close to perpendicular as possible, to the dominant direction of travel.

1016.7 Slopes

This section contains technical requirements for the maximum running slope and segment length (1016.7.1) and cross slope (1016.7.2) of outdoor recreation access routes.

1016.7.1 Maximum Running Slope and Segment Length

This section requires the running slope of any segment of an outdoor recreation access route to not be steeper than 1:10 (10%). Where the running slope of a segment of an outdoor recreation access route is steeper than 1:20 (5%), the maximum length of the segment is specified in Table 1016.7.1, and a resting interval is required at the top and bottom of each segment. Gradual running slopes are more useable by individuals with disabilities. Where the terrain results in steeper running slopes, resting intervals are required more frequently. Where running slopes are less severe, resting intervals are permitted to be further apart.

1016.7.2 Cross Slope

This section requires the cross slope of outdoor recreation access routes to not be steeper than 1:48. Where the surface is other than asphalt, concrete, or boards, cross slopes not steeper than 1:20 are permitted when necessary for drainage.

1016.8 Resting Intervals

This section contains the technical requirements for the length (1016.8.1), width (1016.8.2), and slope (1016.8.3) of resting intervals; and for a turning space (1016.8.4) where resting intervals are provided adjacent to an outdoor recreation access route.

1016.8.1 Length

This section requires resting intervals to be 60 inches long minimum.

1016.8.2 Width

This section requires resting intervals that are provided within an outdoor recreation access route to be at least as wide as the widest segment of the outdoor recreation access route leading to the resting interval. Resting intervals that are provided adjacent to an outdoor recreation access route are required to be 36 inches wide minimum.

1016.8.3 Slope

This section requires the slope of resting intervals to not be steeper than 1:48 in any direction. Where the surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 are permitted when necessary for drainage.

1016.8.4 Turning Space

This section requires a turning space complying with 304.2.3 of the Architectural Barriers Act Accessibility Guidelines where resting intervals are provided adjacent to an outdoor recreation access route. The vertical alignment of the outdoor recreation access route, turning space, and resting interval is required to be nominally planar (i.e., as flat as possible) so that all the wheels of a mobility device touch the ground when turning into and out of the resting interval.

1016.9 Protruding Objects

This section requires constructed elements on outdoor recreation access routes, resting intervals, and passing spaces to comply with the technical requirements for protruding objects in 307 of the Architectural Barriers Act Accessibility Guidelines. Protruding objects can be hazardous for individuals who are blind or have low vision. Signs and other post mounted objects are examples of constructed elements that can be protruding objects. Natural elements such as tree branches are not required to comply with the technical requirements for protruding objects in 307 of the Architectural Barriers Act Accessibility Guidelines. However, entities should maintain the vertical clearance along outdoor recreation access routes, resting intervals, and passing spaces free from tree branches for 80 inches high minimum above the ground.

1017 Trails

1017.1 General

This section contains the technical requirements for trails. The technical requirements address the surface of the trails, passing spaces, and resting intervals (1017.2); the clear tread width of trails (1017.3); passing spaces (1017.4); tread obstacles (1017.5); openings (1017.6); slopes, including running slope (1017.7.1) and cross slope (1017.7.2); resting intervals (1017.8); protruding objects (1017.9); and trailhead signs (1017.10).

Two exceptions are provided. When an entity determines that a condition in 1019 does not permit full compliance with a specific provision in 1017 on a portion of a trail, Exception 1 permits the portion of trail to comply with the provision to the extent practicable. When an entity determines that it is impracticable for the entire trail to comply with the technical requirements in 1017, Exception 2 exempts the entire trail from complying with the requirements. This determination is made after the entity applies Exception 1 to portions of the trail. The entity should consider the portions of the trail that can and cannot fully comply with the specific provisions in 1017 and the extent of compliance where full compliance cannot be achieved when determining whether it would be impracticable for the entire trail to comply with the technical requirements in 1017. As discussed under F201.4.1, federal agencies are required to document the basis for their determination when using Exceptions 1 or 2, and are required notify us when using Exception 2.

1017.2 Surface

This section requires the surface of trails, passing spaces, and resting intervals to be firm and stable. A firm trail surface resists deformation by indentations. A stable trail surface is not permanently affected by expected weather conditions and can sustain normal wear and tear from the expected uses between planned maintenance.

1017.3 Clear Tread Width

This section requires the clear tread width of trails to be 36 inches minimum. The 36 inches minimum clear tread width is to be maintained for the entire distance of the trail and may not be reduced by gates, barriers, or other obstacles unless an entity determines under Exception 1 to 1017.1 that a condition in 1019 does not permit full compliance with the provision.

Where gates and barriers require wheelchair users to make 90 degree or 180 degree turns, sufficient space should be provided for wheelchair users to make the turns. We and National Institute on Disability and Rehabilitation Research sponsored research to collect anthropometric data from a sample of about 500 individuals who use manual wheelchairs, power wheelchairs, and scooters. The research is known as the Anthropometry of Wheeled Mobility Project and was conducted by the Center for Inclusive Design and Environmental Access in the School of Architecture and Planning, University at Buffalo, The State University of New York. The reports on the Anthropometry of Wheeled Mobility Project are available at: http://www.udeworld.com/anthropometrics.html. The reports provide data on turning spaces for manual wheelchairs, power wheelchairs, and scooters.

1017.4 Passing Spaces

This section requires passing spaces to be provided at intervals of 1000 feet maximum where the clear tread width of trails is less than 60 inches. Entities should consider providing either 60 inches minimum clear tread width on trails or passing spaces at shorter intervals where the trail is heavily used or where the trail is a boardwalk or otherwise not at the same level as the adjoining ground surface. Where the full length of a trail does not fully comply with the technical requirements in 1017, a passing space is required to be located at the end of the trail segment that fully complies with the technical requirements 1017 to enable individuals who use wheeled mobility devices to turn and exit the trail.

Passing spaces are required to be:

• A space 60 inches minimum by 60 inches minimum; or

• The intersection of two trails providing a T-shaped space complying with 304.3.2 of the Architectural Barriers Act Accessibility Guidelines where the base and the arms of the T-shaped space extend 48 inches minimum beyond the intersection.

Where the intersection of two trails serves as a passing space, the vertical alignment of the trails at the intersection that form the T-shaped space is required to be nominally planar (i.e., as flat as possible) so that all the wheels of a mobility device touch the ground when turning into and out of the passing space.

Passing spaces and resting intervals are permitted to overlap. Where passing spaces and resting intervals overlap, the technical requirements for resting intervals in 1017.8.3 require the slope of the surface to not be steeper than 1:48 in any direction. Where the surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 are permitted when necessary for drainage. Otherwise, passing space surfaces have the same slopes as the adjoining trail tread.

1017.5 Tread Obstacles

This section contains technical requirements for tread obstacles on trails, passing spaces, and resting intervals. The vertical alignment of joints in concrete, asphalt, or board surfaces on trails can be tread obstacles. Natural features such as tree roots and rocks within the trail tread also can be obstacles. This section requires obstacles to not exceed 1/2 inch in height measured vertically to the highest point. Where the surface is other than concrete, asphalt, or boards, obstacles are permitted to not exceed 2 inches in height measured vertically to the highest point.

The frequency of tread obstacles and tread obstacles that cross the full width of the trail tread can make travel difficult for individuals who use wheeled mobility devices. Where possible, tread obstacles that cross the full width of the trail tread should be separated by 48 inches minimum so individuals who use wheeled mobility devices can cross the obstacle before confronting another obstacle.

1017.6 Openings

This section requires openings in the surface of trails, passing spaces, and resting intervals such as spaces between the boards in a boardwalk to not allow passage of a sphere more than 1/2 inch in diameter. Elongated openings should be placed so that the long dimension is perpendicular, or as close to perpendicular as possible, to the dominant direction of travel.

1017.7 Slopes

This section contains technical requirements for the maximum running slope and segment length (1017.7.1) and cross slope (1017.7.2) of trails.

1017.7.1 Maximum Running Slope and Segment Length

This section requires that not more than 30 percent of the total length of a trail have a running slope steeper than 1:12 (8.33%), and that the running slope of any segment of a trail not be steeper than 1:8 (12%). Where the running slope of a segment a trail is steeper than 1:20 (5%), the maximum length of the segment is specified in Table 1017.7.1, and a resting interval is required at the top and bottom of each segment. Gradual running slopes are more useable by individuals with disabilities. Where the terrain results in steeper running slopes, resting intervals are required more frequently. Where running slopes are less severe, resting intervals are permitted to be further apart.

1017.7.2 Cross Slope

This section requires the cross slope of trails to not be steeper than 1:48. Where the surface is other than asphalt, concrete, or boards, cross slopes not steeper than 1:20 are permitted when necessary for drainage.

1017.8 Resting Intervals

This section contains the technical requirements for the length (1017.8.1), width (1017.8.2), and slope (1017.8.3) of resting intervals; and for a turning space (1017.8.4) where resting intervals are provided adjacent to a trail.

1017.8.1 Length

This section requires resting intervals to be 60 inches long minimum.

1017.8.2 Width

This section requires resting intervals that are provided within the trail tread to be at least as wide as the widest segment of the trail tread leading to the resting interval. Resting intervals that are provided adjacent to the trail tread are required to be 36 inches wide minimum.

1017.8.3 Slope

This section requires the slope of resting intervals to not be steeper than 1:48 in any direction. Where the surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 are permitted when necessary for drainage.

1017.8.4 Turning Space

This section requires a turning space complying with 304.2.3 of the Architectural Barriers Act Accessibility Guidelines where resting intervals are provided adjacent to the trail tread. The vertical alignment of the trail tread, turning space, and resting interval is required to be nominally planar (i.e., as flat as possible) so that all the wheels of a mobility device touch the ground when turning in and out of the resting interval.

1017.9 Protruding Objects

This section requires constructed elements on trails, resting intervals, and passing spaces to comply with the technical requirements for protruding objects in 307 of the Architectural Barriers Act Accessibility Guidelines. Protruding objects can be hazardous for individuals who are blind or have low vision. Signs and other post mounted objects are examples of constructed elements that can be protruding objects. Natural elements such as tree branches are not required to comply with the technical requirements for protruding objects in 307 of the Architectural Barriers Act Accessibility Guidelines. However, entities should maintain the vertical clearance along the trail tread, resting intervals, and passing spaces free from tree branches for 80 inches high minimum above the ground.

1017.10 Trailhead Signs

This section requires trail information signs at trailheads to include information on the length of the trail or trail segment; surface type; typical and minimum tread width; typical and maximum running slope; and typical and maximum cross slope. This information enables individuals with disabilities to decide whether to hike the trail based on the characteristics of the trail. Entities also should provide information about the accessibility of trails on websites.

1018 Beach Access Routes

1018.1 General

This section contains the technical requirements for beach access routes. The technical requirements address connections (1018.2); surface (1018.3); clear width (1018.4); obstacles (1018.5); openings (1018.6); slopes, including running slope (1018.7.1) and cross slope (1018.7.2); resting intervals (1018.8); protruding objects (1018.9); and dune crossings (1018.10).

Three exceptions are provided. When an entity determines that a condition in 1019 does not permit full compliance with a specific provision in 1018 on a portion of a beach access route, Exception 1 permits the portion of route to comply with the provision to the extent practicable. When an entity determines that it is impracticable to provide a beach access route complying with the technical requirements in 1018, Exception 2 does not require a beach access route. This determination is made after the entity applies Exception 1 to portions of the route. The entity should consider the portions of the beach access route that can and cannot fully comply with the specific provisions in 1018 and the extent of compliance where full compliance cannot be achieved when determining whether it would be impracticable to provide a beach access route complying with the technical requirements in 1018. Exception 3 exempts removable beach access routes from complying with the technical requirements for running slope (1018.7.1) and cross slope (1018.7.2); resting intervals (1018.8); and dune crossings (1018.10). As discussed under F201.4.1, federal agencies are required to document the basis for their determination when using Exceptions 1 or 2, and are required to notify us when using Exception 2.

1018.2 Connections

This section requires beach access routes to connect an entry point to the beach to the high tide level at tidal beaches; mean high water level at river beaches; and normal recreation water level at lake, pond, and reservoir beaches.

1018.3 Surface

This section requires the surface of beach access routes and resting intervals to be firm and stable.

1018.4 Clear Width

This section requires the clear width of beach access routes to be 60 inches minimum to enable individuals who use wheeled mobility devices to pass beach visitors traveling in the opposite direction. An exception permits the clear width of beach access routes that are not removable to be reduced to 48 inches minimum at dune crossings.

Where gates or barriers are installed to control access to beaches, the gates or barriers should permit the passage of beach wheelchairs. Beach wheelchairs have large, wide wheels that can roll across sand without sinking. Gates or barriers that have clear openings at least 48 inches wide will accommodate most beach wheelchairs.

1018.5 Obstacles

This section contains technical requirements for obstacles on beach access routes and resting intervals. The vertical alignment of boards on a beach access route or removable sections of a beach access route can be obstacles. This section requires obstacles to not exceed 1/2 inch in height measured vertically to the highest point. Where the surface is other than concrete, asphalt, or boards, obstacles are permitted to not exceed 1 inch in height measured vertically to the highest point.

1018.6 Openings

This section requires openings in the surface of beach access routes and resting intervals such as spaces between boards to not allow passage of a sphere more than 1/2 inch in diameter. Elongated openings should be placed so that the long dimension is perpendicular, or as close to perpendicular as possible, to the dominant direction of travel.

This section contains technical requirements for the maximum running slope and segment length (1018.7.1) and cross slope (1018.7.2) of beach access routes.

1018.7.1 Maximum Running Slope and Segment Length

This section requires that the running slope of any segment of a beach access route not be steeper than 1:10 (10%). Where the running slope of a segment a beach access route is steeper than 1:20 (5%), the maximum length of the segment is specified in Table 1018.7.1, and a resting interval is required at the top and bottom of each segment. Gradual running slopes are more useable by individuals with disabilities. Where the terrain results in steeper running slopes, resting intervals are required more frequently. Where running slopes are less severe, resting intervals are permitted to be further apart.

1018.7.2 Cross Slope

This section requires the cross slope of beach access routes to not be steeper than 1:48. Where the surface is other than asphalt, concrete, or boards, cross slopes not steeper than 1:20 are permitted when necessary for drainage.

1018.8 Resting Intervals

This section contains the technical requirements for the size (1018.8.1) and slope (1017.8.2) of resting intervals.

1018.8.1 Size

This section requires resting intervals to be 60 inches minimum by 60 inches minimum.

1018.8.2 Slope

This section requires the slope of resting intervals to not be steeper than 1:48 in any direction. Where the surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 are permitted when necessary for drainage.

1018.9 Protruding Objects

This section requires constructed elements on beach access routes and resting intervals to comply with the technical requirements for protruding objects in 307 of the Architectural Barriers Act Accessibility Guidelines. Protruding objects can be hazardous for individuals who are blind or have low vision. Signs and other post mounted objects are examples of constructed elements that can be protruding objects.

1018.10 Dune Crossings

This section requires handrails complying with 505 of the Architectural Barriers Act Accessibility Guidelines and curbs or barriers to be provided where the slope of a beach access route at a dune crossing is steeper than 1:20 (5%). The curbs or barriers are required to prevent the passage of a 2 inch diameter sphere, where any portion of the sphere is within 2 inches of the crossing surface.

1019 Conditions for Exceptions

1019.1 General

This section lists the conditions for the exceptions to specific provisions in 1011, 1013, 1014, 1015, 1016, 1017, and 1018. When an entity determines that any of the following conditions does not permit full compliance with the provision, compliance is required to the extent practicable:

• Compliance is not practicable due to terrain.

• Compliance cannot be accomplished with the prevailing construction practices.

• Compliance would fundamentally alter the function or purpose of the facility or the setting.

• Compliance is limited or precluded by any of the following laws, or by decisions or opinions issued or agreements executed pursuant to any of the following laws: Endangered Species Act; National Environmental Policy Act; National Historic Preservation Act; Wilderness Act; or other federal, state, or local law the purpose of which is to preserve threatened or endangered species; the environment; or archaeological, cultural, historical, or other significant natural features.

The last condition allows the following to be a basis for using the exceptions:

• Opinions issued by the Secretary of the Interior pursuant to the Endangered Species Act stating how a federal agency can implement an action without jeopardizing the continued existence of any endangered species or threatened species, or destroying or adversely modifying the habitat of such species (16 U.S.C. 1536 (b) (3) (A));

• Decisions issued by a federal agency pursuant to the National Environmental Policy Act in actions requiring environmental impact statements stating how it will avoid or minimize environmental harm (42 U.S.C. 4332; 40 CFR 1505.2);

• Agreements executed or decisions issued by a federal agency pursuant to National Historic Preservation Act stating how it will avoid, minimize, or mitigate adverse effects on historical properties (16 U.S.C. 470f and 470h-2; 36 CFR 800.6 (b) (iv) and 800.7 (c) (4)); and

• Provisions in the Wilderness Act that require federal agencies to preserve the wilderness character of designated wilderness areas and prohibit any structure or installation within such areas (16 U.S.C. 1131 (b) and (c)).