Arroyo Grande council reviews 30% design for Halcyon Complete Streets, staff seeks direction on overlay, parking and trees

City Engineer Shannon Sweeney presented the 30% design for the Halcyon Complete Streets project to the Arroyo Grande City Council on Feb. 25, explaining why costs now exceed the estimate used to secure a state active transportation grant.

Sweeney said the project “was originally conceived back in 02/2015, but in 2022 we received a sizable state active transportation grant,” and walked the council through design and funding details. The 30% design carries an estimated construction cost of about $9.7 million; the grant and other identified local sources total about $8.42 million, leaving a $1.3 million shortfall in the current estimate.

The largest single cost driver, Sweeney told the council, is pavement treatment: “It was determined that an overlay is needed. And that is $3,670,000. That is our biggest discrepancy.” The grant application had assumed a lower-cost slurry seal (about $1.43 million). Sweeney said staff recommends an overlay to avoid redoing new striping and bicycle lane paint on pavement that would fail soon after construction.

Why it matters: the proposal would reconfigure vehicle lanes to create buffered Class II bicycle lanes in much of the corridor, add pedestrian safety improvements near the school, and alter parking and intersection controls to reduce vehicle speeds and conflict points. Council members and public commenters framed the project primarily as a…