>>1781686 (both old bread)
I think the vid in the 1781686 post is rather alarmist, but it turns out FEMA does have housing barges. First I'd heard about it; learn something new every day!
This 141-page report lays out various housing options (barges on page 101):
https://www.fema.gov/media-library-data/20130726-1854-25045-3570/catastrophic_housing_annex.pdf
FEMA planned to send housing barges to Port Arthur during Hurricane Harvey:
https://www.12newsnow.com/article/weather/harvey/port-arthur-mayor-fema-housing-for-county-temporary-housing-coming-for-pa-sheltered-evicted/474024857
https://www.12newsnow.com/article/weather/harvey/port-arthur-mayor-clarified-temporary-housing-situation-for-city/502-474654913
Port Arthur Mayor's Facebook post about the barges. Said "Not sure who found the big grey box picture of the housing barges the news had, but the living quarters we have coming looks more like a river boat. It will also be anchored within our city limits and be ADA compliant and accessible. Residents will receive three meals a day, laundry access, towel service, direct tv and many other amenities will be available. #FEMA is making the 600 units available to our citizens in shelters at TJMS/Garland/Dallas/San Antonio and our evicted tenants first."
https://www.facebook.com/derrickfordfreeman/posts/1885904548092003:0
Turned out the barges did not pass Coast Guard inspection due to missing rails so Port Arthur didn't get them after all:
https://www.panews.com/2017/09/14/emergency-barge-shelter-cancelled-authorities-seek-alternatives/
http://kfdm.com/news/local/jefferson-county-judge-barges-aimed-for-port-arthur-fail-coast-guard-inspection