Should you bypass road and path closures to ride your bike through flooded areas?

The driver of a stolen SUV attempted to run down a pair of officers patrolling on their bikes, say Toronto police. The officers had to jump out of the way of the speeding vehicle. Police used a dragnet involving more bikes and police cruisers to find the stolen vehicle and the driver, catching him after a brief foot chase.
Paul Homgren, general manager for the Philadelphia Flyers NHL team, was seriously injured while riding his bicycle over the weekend in New Jersey. Read more in the Press of Atlantic City.
San Francisco mayoral candidate John Avalos joined the SF2G (“San Francisco to Google”) bike commute group on their Friday morning ride.