The Park Board has decided to spend $500,000 to hire an engineer to help make a legal case against a light-rail crossing at the Kenilworth channel in south Minneapolis.
Park officials want to explore a potentially more costly option to route the proposed Southwest rail transit line under the languid channel that connects Cedar Lake and Lake of the Isles.
The current plan would put the rail line over the channel, which is populated by giant snapping turtles.
Park Superintendent Jayne Miller and board President Liz Wielinski met Wednesday with Metropolitan Council officials to discuss their tunneling option.
Later that afternoon, Wielinski said, the Metro Council sent an e-mail saying it had no intention of pursuing the board's tunnel proposal.
The council said in a statement it has been "working with the Park Board for the last two years and is committed to continuing to work with them on the landscape design of the Kenilworth corridor, the design of the bridge over the channel and the design of the Penn, 21st and West Lake Stations."
That night, the Park Board voted to pull $500,000 out of its reserves to conduct an engineering analysis of the tunnel option.
Park officials have been girding for a clash for about two years.