Y--Construction of Arizona Heritage Trail

Proposed Project: The Bureau of Reclamation, Lower Colorado Region has a requirement for the construction of the Arizona Heritage Trail. The Trail will be approximately 3.6 miles long and will run along the Arizona side of the Colorado River from the top of Davis Dam to the Arizona State Route 68/NV State Route 163 Bridge (Laughlin Bridge). The design includes two trailheads, one Davis Dam Trailhead and the other Davis Camp Trailhead; one trail, Desert Trail 12 feet wide and; three spur trails 8 feet wide, Mohave Spur Trail, Davis Camp Spur Trail, and McCormick spur trail; and two day-use facilities, Fishing Nodes and the Kayak Launch. An aerial view of the area is provided. Below is a brief description of each feature: Davis Dam Trailhead This trailhead would be located near the east end of the Davis Dam between Davis Dam Road and Lake Mohave. The trailhead will include a trail entry monument, wayfinding shelter/trail map, interpretive panels, bike racks, trash receptacles, 2-unit vault accessible restrooms, doggy bag poop bag dispenser, and solar power for the lights. Portions of the trailhead will be replanted with native vegetation provided by the NPS or a source approved by Reclamation and the NPS. Access to the Lake Mohave Spur Trail will be from this trailhead. Facilities at the trailhead and along the main trail and spur trail will include solar lights along the trail, with 2-3 fishing nodes, and 1 or 2 kayak launch facilities. Retaining walls will be required along portions of the trail. Davis Camp Trailhead This trailhead would be located east of the Davis Camp entrance road. Amenities at the Davis Camp Trailhead would include an entry monument, wayfinding shelter/trail map, interpretive panels, bike racks, trash receptacles, doggy bag poop bag dispenser, flush restrooms, potable water, picnic shelters, bike repair station, mist cooling system, equipment storage area, and a maintenance entrance gate, and parking lot. Portions of the trailhead would be replanted with native vegetation provided by the NPS or a source approved by Reclamation and the NPS. A spur trail lined with lights would lead from this trailhead into Davis Camp and would be maintained by Mohave County. The Trail down to Highway 163 will be lighted. Vehicles would access this trailhead from McCormick Boulevard off State Route 68. Pedestrians and bicycles may also reach the Davis Camp Trailhead from the Davis Dam Trailhead via the proposed trails and pedestrian bridges that span the large drainage wash. Desert Trail The hardened service Hike and Bike Desert Trail (Desert Trail) would start at the security barrier on the east end of Davis Dam and terminate at the Laughlin/Bullhead City Highway 163 Bridge. The trail shall be of a hardened surface 12-foot wide with 2-foot shoulders on both sides of the trail. The Trail shall be fully accessible and will be a combination of placed concrete and Roller Compacted concrete surfaces. The Desert Trail would start from the north side of Davis Dam and parallel Davis Dam Road 750 feet to the proposed Davis Dam Trailhead adjacent to the west side of the Lake Mohave Spur Trail. The Desert Trail would cross Davis Dam Road approximately 1,850 feet east of the Davis Dam Trailhead. The road crossing would be equipped with a crosswalk with yellow flashing lights. The trail would then parallel David Dam Road to the southeast on an existing dam construction-era road until it intersects and follows the centerline of the dam;s electrical switchyard access road. A small accessible parking lot would be constructed at this location. The security area access road would be equipped with an entry monument and gate. The entry monument would be large enough to attract motorists and would be designed to identify the entry as well as highlight this area as a place of significance and special character. The design theme would reflect the area's natural history and setting. This portion of trail from Davis Dam road shall be designed to handle Trailer trucks and service vehicles. The Desert Trail would pass the entrance to the switchyard and continue south on an existing transmission line right-of-way (ROW). At the top of hill a small spur trail would lead to a proposed scenic overlook that would provide open views to the Colorado River valley, Davis Camp, Davis Dam, and the skylines of Laughlin and Bullhead City. A shade shelter, bench, and interpretive panels, and garbage can would be placed at the overlook. From the scenic overlook, the Desert Trail would continue south along the top of the ridgeline within the transmission line ROW and then onto an old construction road until it crosses a wash southeast of Inscription Rock. A series of modular bridges would span the large wash as the trail continues south to the Davis Camp Trailhead. From the Davis Camp Trailhead the Desert Trail would head west adjacent to the Davis Camp Entry Road and turn left (South) to cross the Davis Camp Entrance road with a cross walk and yellow flashing lights. The Trail would continue through Davis Camp. Within Davis Camp there will be 2 access nodes, one on the north end and one behind the Museum on the southern end of the camp. The sites would allow users within the camp access to the Desert Trail. The points will provide parking, wayfinding, potable water, cooling misters, shade shelter, bike rack, bench, and garbage can. The Trail would continue behind the museum and them up near the highway and go down and use the existing crosswalk to connect to the Highway 163 Bridge Walkway. As part of the Highway 163 Bridge rehabilitation the plan is to move the walkway to the North side of the Highway 163 Bridge. Mohave Spur Trail The Lake Mohave Spur Trail is an approximately 1,050 foot loop that would follow the existing dam construction-era roadway to the shore of Lake Mohave west of the Katherine Landing Access Road. This Trail shall be 8-foot wide with 2-foot shoulders on both sides, it is anticipated that portions of this trail will require a retaining wall. The trail would provide access to 2 or 3 fishing nodes and a Kayak/Canoe launch site. Davis Camp Spur Trail The Davis Camp Spur Trail would be a hardened 8-foot wide with 2-foot shoulders on both sides running west and parallel to north side of the Davis Camp Access Road to the Mohave County-managed Davis Camp entrance until it reaches the stop sign adjacent to the wash. The trail would leave space for an additional access entry road between the existing paved roadway and the trail. McCormick Spur Trail The McCormick Spur Trail would be a hardened 8-foot wide with 2-foot shoulders on both sides running east from the North Davis Camp Entry Node up to the South side of the main access road into Davis Camp on out to the Highway 68 intersection to connect with an existing cross walk at the stop light. Just prior to the Highway intersection it crosses an open area that will need to be designed for heavy loads and protected with folding or removable bollards. Fishing Nodes Two or three fishing access nodes similar to the Laughlin fishing access points would be constructed along the Lake Mohave shoreline off the Lake Mohave Spur Trail. The style of fishing node being evaluated for use is a cantilevered dock similar to those constructed as part of the Laughlin Heritage Greenway Trail. The cantilevered dock could be constructed on adjacent uplands and extend over the water, and shall be accessible. The precise location of the fishing nodes will be determined during the final site design, pending U.S. Army Corps of Engineers (Corps) permitting, and any potential cultural and biological resource concerns in the project area. Biological and cultural surveys have been completed for the Project (DSG 2016; SRI 2016). Kayak Launch An accessible low maintenance kayak launch would be constructed along the Lake Mohave shoreline. The precise location and design of the launch will be determined during the final site design, pending Corps permitting, and any potential cultural and biological resource concerns in the project area. The facility shall be an accessible low maintenance sustainable facility, and handle a lake draw down of 12-feet.

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Exterior Improvements, Operation and Maintenance of Exterior Improvements, Irrigation, Planting Irrigation, Planting Preparation, Soil Preparation, Landscape Grading.