3.5 miles — length of just-finished extension. $2 million — extending the trail from Alexander Road to Centennial Parkway. 5 years — duration of the next stage of construction. 7 miles — City of Las Vegas trail from Centennial Parkway to Decatur Boulevard. $17 million — cost of the 7-mile extension, including several bridges. 8 miles — North Las Vegas trail from Decatur to Range Road. $22 million — cost of 8-mile extension, including a bridge over the 215 Beltway that will cost $2.5 million.