Question: The Pua'a Ka'a State Wayside Park is located along a highway that is how many miles long?

Context paragraphs:
Pine-Hickory Lakes Roadside Parking Area: Pine-Hickory Lakes Roadside Parking Area is a wayside rest located along U.S. HIghway 169 in Farm Island Township, Aitkin County, Minnesota.  It is located on an isthmus between Little Pine Lake and Hickory Lake.  It is one of the largest wayside rests developed by the Minnesota Highway Department during the New Deal, at 35 acre .  Arthur R. Nichols, collaborating with engineer Harold E. Olson, designed the rest area in the National Park Service rustic style.  The wayside rest was listed on the National Register of Historic Places in May 2016.

Inspiration Peak: Inspiration Peak is the highest peak of the Leaf Hills Moraines and of Otter Tail County in the U.S. State of Minnesota.  It is 22 miles (36 km) northwest of Alexandria.  The peak rises about 400 feet (122 m) above the surrounding plains, to an elevation of about 1750 feet (533 m) above sea level.  It is the central feature of Inspiration Peak State Wayside Park, a small park maintained by the Minnesota Department of Natural Resources, which manages it from nearby Lake Carlos State Park.  The wayside has a paved parking lot and a picnic area.  The hike to the top is a short but strenuous walk up a well-worn trail from the parking lot.

Falling Creek UDC Jefferson Davis Highway Marker: Falling Creek UDC Jefferson Davis Highway Marker is a historic stone highway marker located near Richmond, in Chesterfield County, Virginia.  It was erected in 1933, and is one of sixteen erected by the United Daughters of the Confederacy in Virginia along the Jefferson Davis Highway between 1927 and 1946.  The marker is a gray granite boulder with rough-cut edges.  The stone is engraved with the text “ERECTED BY THE FIRST DISTRICT VIRGINIA DIVISION UNITED DAUGHTERS OF THE CONFEDERACY 1933.”  It is located in a wayside established in 1934, that provides access to the Bridge at Falling Creek.  It was the first highway wayside park in Virginia.

Pua'a Ka'a State Wayside Park: Puaʻ a Kaʻ a State Wayside Park is a state park on the island of Maui, Hawaiʻ i.  It is located along the Hana Highway approximately 39 mi east of Kahului.  The area consists of 5 acre of rainforest with waterfalls and pools.  The park is at an elevation of 1200 ft and roughly 0.5 mi away from Waiohue Bay.

Kaumahina State Wayside Park: Kaumahina State Wayside Park or Kaumahina State Park, is located in Maui County, Hawaii, 28.3 mi East of Kahului and 22.4 mi West of Hana along the Hana Highway.  The park consists of 7.8 acre of forest and exotic plants.  Amenities include a rest stop and scenic views of the northeast Maui coastline and Ke'anae Peninsula.

Wayside, New Jersey: Wayside is an unincorporated community located along the border of Tinton Falls Borough and Ocean Township in Monmouth County, New Jersey, United States.  The community is largely residential though some churches, parks, and schools are located in the area.  The main arterial roads in the community are Hope Road (through which the Tinton Falls–Ocean Township municipal line runs), Wayside Road (County Route 38 in Tinton Falls), and West Park Avenue.  Access to New Jersey Route 18 is available via nearby interchanges with Deal Road, West Park Avenue, and Wayside Road; the Garden State Parkway's exit 105 is also located north of Wayside.

Hana Highway: The Hāna Highway is a 64.4 mi long stretch of Hawaii Routes 36 and 360 which connects Kahului with the town of Hāna in east Maui.  On the east after Kalepa Bridge, the highway continues to Kīpahulu as Hawaii Route 31 (the Piilani Highway).  Although Hāna is only about 52 mi from Kahului, it takes about 2.5 hours to drive when no stops are made as the highway is very winding and narrow and passes over 59 bridges, 46 of which are only one lane wide.  There are approximately 620 curves along Route 360 from just east of Kahului to Hāna, virtually all of it through lush, tropical rainforest.  Many of the concrete and steel bridges date back to 1910 and all but one are still in use.  That one bridge, badly damaged by erosion, has been replaced by a portable steel ACROW bridge erected by the United States Army Corps of Engineers.

Wailua Valley State Wayside Park: Wailua Valley State Wayside Park is located 31 miles east of Kahului, Maui.  The lookout provides views into Ke'anae Valley.  From the park you can view waterfalls, the Ko'olau Gap, Wailua Peninsula and the rim of Haleakala Crater.

Manuka State Wayside Park: The Manuka State Wayside Park is a state park of 13.4 acre with an arboretum located approximately 19 mi west of Naʻ alehu, on the Mamalahoa Highway (Route 11) section of the Hawaii Belt Road, on the island of Hawaii, Hawaii, coordinates

Chandler State Wayside: Chandler State Wayside (also known as Chandler State Park) is a state park in south-central Oregon in the United States.  It is named in honor of Solomon and Hattie Chandler, who donated the land for the park.  The park covers 85 acre of pine forest along a creek.  The park provides restrooms and other basic facilities to accommodate the traveling public.  Chandler State Wayside is administered by the Oregon Parks and Recreation Department.

Supporting paragraphs: Pua'a Ka'a State Wayside Park Hana Highway
Answer: 64.4 mi long