Drivers, brace yourselves for a green wave of traffic changes this Friday in the nation's capital. The city is making way for EcoBash, a sustainability shindig set to rock D.C. with earth-friendly vibes and, yes, a few roadblocks. The big eco-friendly bash on April 19 will trigger street closures and parking restrictions that'll make rush hour seem like a walk in the park.

Here's the lowdown according to the Metropolitan Police Department: H Street lies at the heart of the hoopla between 21st and 22nd streets, NW, shutting down to all vehicle traffic from 2:30 p.m. right up until 8:30 p.m. As per usual, parking graces the garages under the University Student Center, accessible via H Street and 21st Street, NW—so you urban charioteers can still stash your steel steeds.

The MPD hasn't been shy about broadcasting this pro-planet festival's side effects. They've made it crystal clear that any wheels parked in the path of these emergency no parking zones will find themselves hitching a ride to the impound. Keep your eyes peeled for the emergency signs unless you're hankering for a parking ticket with your tofu burger.

If you're plotting a course through D.C., consider this your cue for a strategic detour. With delays as likely as a politician's promise during election season, alternative routes should be topping your To-Do list. And remember, folks, let's not zip through those streets like it's the Indy 500; increased foot traffic is a given when Mother Earth's fans descend upon the district. With not a stone left unturned, the MPD and the D.C. Department of Transportation advise drivers to ease off the gas pedal and keep their peepers peeled for pedestrians.