The list identifies streets that have been recently paved. Per the City of Larkspur's municipal code §15.32.070, no excavation or pavement cutting shall be permitted on newly paved roads for a period of five years.
A downtown event application is required if the closure is being requested for Magnolia Avenue. The link to that form can be found here.
As a courtesy, the Larkspur Public Works Dept. will loan up to 5 barricades to individual citizens and non-profit groups on a temporary basis. This program does not apply to commercial or for-profit groups.