The city of Philadelphia has selected EarthLink to deploy a citywide wireless broadband network, the largest municipal Wi-Fi network in the U.S., the company announced Tuesday.

The Wi-Fi deployment in the U.S.' fifth largest city is expected to be finished by the fourth quarter of 2006, EarthLink said. EarthLink, a large Atlanta-based ISP, will deploy a mesh Wi-Fi network covering 135 square miles. The contract award in the controversial project comes a day after the city of San Francisco announced it had received 24 proposals for its own municipal Wi-Fi project.

Under the terms of the EarthLink proposal, no city or taxpayer dollars will be used to fund the project. EarthLink will finance, build and manage the wireless network, and share revenue with the city's Wireless Philadelphia initiative.

The infrastructure portion of the contract totals about $10 million, said Dianah Neff, the city's CIO and acting chairwoman of Wireless Philadelphia, a nonprofit group set up by the city. EarthLink's proposal was one of 12 the city received from vendors, she said.

An EarthLink official declined to disclose the total amount of the contract until after the contract is signed.

EarthLink will sell bandwidth on the Wi-Fi network to other ISPs, and Philadelphia residents will be able to choose EarthLink or other ISPs for their Wi-Fi services once the network is built, said Cole Reinwand, EarthLink's director of next-generation broadband.

"We'll make [the network] available at very reasonable rates," he said. "We want to avoid any issue of overbuilding."

EarthLink's proposal to pay for the cost of building the network was among the major reasons the city selected the provider, Neff said. The city's request for proposals did not require that the Wi-Fi vendor pay for the cost of building the network; the city had considering using bonds or private funding to allow Wireless Philadelphia to pay for construction, she said.

Philadelphia's plan to build a citywide Wi-Fi network has met criticism from Verizon, which offers DSL wireless broadband service to the Philadelphia area. Verizon and other incumbent telecommunications carriers have questioned whether tax dollars should fund Internet services in competition with private companies and if cities understand the long-term costs of maintaining Wi-Fi networks.

EarthLink's funding proposal addresses those criticisms, Neff said. "We have believed from the beginning that the nonprofit could take on the [funding] risk," she said. "EarthLink stepping up and offering to fund this at their risk ... was very important to us."

Two other bidders proposed alternative funding arrangements, Neff said.

The IDG News Service is a Network World affiliate.