Funding has been approved for the Redding Mile of the Norwalk River Valley Trail.  The state Department of Energy and Environmental Protection has granted the town $300,000 for the construction.  Stuart Green of the Conservation Commission said estimates and proposals will be submitted. First Selectman Julia Pemberton says possible design/engineering and construction firms need to be reviewed.  The state Department of Transportation requires full drawings and maps of the entire section.  The town also wanted a legal review of the environmental hazard clause in the contract.  Timber and Stone prepared construction documents about three years ago, and cost increases since then were factored into when applying for the grant.