Miami Beach is starting to raise roadways to keep seawater off them:
In an area that has seen its fair share of roadwork during the past few years, city officials want to raise West Avenue between 1½ to 2 feet during the next few years in an effort to prepare one of the lowest-lying points of Miami Beach for anticipated sea level rise.
Raising the road would be tied to stormwater drainage and sewer improvements that include installing more pumps to prevent flooding from rain and high tides. The first phase, which will likely begin in February, involves work on West Avenue from Fifth to Eighth streets and from Lincoln Road to 17th Street. This phase would last until August.
The West Avenue Neighborhood Association met Wednesday night with city officials to discuss the plans. Public Works director Eric Carpenter told the packed room of about 100 residents — some skeptical and some more in favor of the plan — that he prefers dovetailing the street raising with the underground infrastructure work rather than tearing up the street several times.
“It doesn’t really make any sense to disturb those segments of the street twice,” he said. “We’re moving forward with the stormwater improvements. What we’re trying to do now is get a consensus from the community that we want to move forward with everything else on that street so that we don’t have to come back later and tear it up again.”
With a higher road, the city would create transitions from the road to the sidewalk that include, depending on the property, a higher sidewalk, steps down to the sidewalk and/or extra drainage components to ensure that no water from the street is draining onto private property.
The first phase of the project will cost $15 million. A few reflections on this:
- What about the buildings?
- Local government officials would have a much steeper political hill to climb to spend $15 million on climate mitigation (emissions reduction) work.
- I predict the costs of (attempting to) adapt to climate change will mostly be borne locally, be largely uncounted at the macro scale (and thus make mitigation seem expensive in comparison), and will often turn out to be a waste of money (since they won’t work for very long). I hope I’m wrong.