11:30 a.m.First Street in downtown Napa is down to one lane at various times today and tomorrow due to work on the Avia Hotel site.

Concrete pours will require the intermittent closure of one lane of First just west of Franklin, according to the city of Napa. The project also requires the ongoing closure of Franklin between First and Clay, the city's traffic newsletter noted.

Additional traffic closures the city lists in its traffic newsletter include:

-- Fifth Street, closed from Main Street to Coombs Street today and from Brown to Coombs on Tuesday as construction continues at the new Fifth Street parking garage.

-- The northbound lane of Main Street from Third Street to Second Street periodically this week due to ongoing work on the floodwall parallel to Main Street from Fifth Street to First Street. Northbound traffic is detoured to Brown Street.

-- Main Street from Third to Fifth streets at various times due to work on “The Riverfront” project Along Main Street south of Third Street.

-- School Street in front of City Hall is open for southbound traffic only from First to Second streets, adjacent to the Napa Square project.