The Hyde Street Reserve is not quite an urban paradise, but over the decades the former tip in the shadow of the West Gate has been lovingly rehabilitated by local volunteers who want a riverland park all of Melbourne will appreciate.

Soon, all that work could be for nought.

The Daniel Andrews government - a fervent critic of Denis Napthine's plan to drive a toll road through Royal Park - is working with Transurban on its toll-road proposal that could require much of the reserve for an interchange.

"If that is built, it is basically over - it will really mean the destruction of the park," said Steve Wilson, president of Friends of Stony Creek.