Bike shares: they're in Washington, D.C., Boston and Denver. And by summer 2014, Pittsburgh.

• Pittsburgh Bike Share

Mayor Luke Ravenstahl today announced that a bike share program — in which users are given a key or code to access a bicycle at parked at solar-powered docking stations at any time i— will include 500 bikes for point-to-point trips across the city.

Passes for the system will range from annual, monthly, three-day and 24-hour and users can use an app called Spotcycle to determine if a bike or empty dock is available at a station.

The Pittsburgh Bike Share is expected to cost $3 million, and is a result of a public-private partnership between the city, Bakery Square, BikePGH and Alta Planning and Design. To date, according to the mayor's office, the Pennsylvania Department of Transportation has provided a $1.6 million grant while project organizers are securing a $400,000 match from foundations and $1 million from corporate sponsors.

Two public information-sharing meetings are currently scheduled:

6 p.m. Tues., April 2, McKenna-Peter-Wright Rooms, 2nd Floor of the University Center, 5302 Forbes Ave., Carnegie-Mellon University, Oakland; and noon Wed., April 3, Lawrence Hall Ballroom, 201 Wood St., Point Park University, Downtown.

For more information, visit BikePGH or Pittsburgh Bike Share.