There will be at least a one year delay on improvements to Interstate 84 in Danbury.  The Newstimes reports that the state Department of Transportation won't start the $715-million widening project until 2023.  The work from exit 3 to 8 would then wrap up in 2030.  A “needs and deficiencies” study hasn't been prepared yet, so officials cautioned that the dates could change again.  A federal environmental assessment and an ‘alternative analysis’ are also needed.