Pilot reported there were no NOTAMs issued after a storm and subsequent flooding led to large debris being scattered throughout 56S airport.

Narrative

After a storm and some flooding; I checked the taxiway/runway for debris and found driftwood up to 4' x 5' on the taxiway and on the runway side of the runway hold line; along with approximately 10' x 10' carpet of matted debris up to 1' x 5' in size. This was approximately 32 hours after the storm/flooding had passed and at least two airplanes had operated in and out. There was no NOTAM issued and the airport authority didn't check for debris after the storm.This kind of thing is a regular occurrence at this airport (I could list several more in detail); which is a very small city-owned airport with no dedicated Airport Manager. I and other pilots have stressed the importance of regular runway and taxiway inspections and issuance of NOTAMs as appropriate.I think it likely that this is not uncommon at airports where the Airport Manager is a 'side job' of another city position; and in such cases safety deficits are bound to exist. The National Academy's Guidebook for Managing Small Airports is a possible resource; but at 350 pages I can't imagine an overworked city employee with Airport Manager as a side job taking the time to read it.My suggestion is for someone (NASA; FAA; NTSB; AOPA) to develop resources along the lines of 'Airport Management for Dummies;' covering the most basic of airport management and safety items; and for FAA to be more proactive in checking in on these very small airport airport managers to ensure they are taking the proper steps to understand and implement them.