PVT PLT OF AN SMA SEL LANDS ON CLOSED ARPT.

Narrative

SIT: LANDED AT C09 ON RWY 18; AND DISCOVERED RWY 18 AND RWY 36 (ONLY RWY AT C09) WERE MARKED CLOSED. THE RWY CLOSED MARKING APPEARED TO BE YELLOW PLASTIC HELD DOWN BY NUMEROUS SMALL SAND BAGS; THEREBY ELIMINATING THE DISTINCTIVE 'X' SYMBOL. I DO NOT CONSIDER THE RWY PROPERLY MARKED. I OBTAINED MY FLT BRIEFING IN NEW ORLEANS APPROX XA15 AM LCL TIME AND SPECIFICALLY ASKED FOR ANY NOTAMS FOR MY PROPOSED RTE OF FLT AND FUEL STOPS. THERE WAS NO MENTION OF THE RWY BEING CLOSED. I STOPPED FOR FUEL IN CAPE GIRARDEAU; MO; BUT DID NOT REQUEST AN UPDATED BRIEFING BECAUSE THE WX WAS FORECAST TO BE EXCELLENT ALONG MY ENTIRE RTE OF FLT FROM LA TO THE FINAL DEST IN WI. IN DISCUSSING THE SIT WITH THE ARPT MGR AT MORRIS; HE ADVISED THAT THE RWY CLOSURE TOOK EFFECT AROUND XA00 AM LCL TIME. HOWEVER; UPON MY LNDG; HE CALLED KANKAKEE; IL; FSS TO INQUIRE IF THEY IN FACT HAD RECORD OF MORRIS ARPT BEING CLOSED AND INQUIRED IF I HAD RECEIVED A BRIEFING FROM THEM; WHICH I HAD NOT SINCE I OBTAINED MY BRIEFING IN NEW ORLEANS. I WAS TOLD THE REASON THE RWY WAS CLOSED WAS DUE TO CONSTRUCTION WORK ON A PARALLEL TXWY WHICH WAS WITHIN 250 FT OF THE RWY. THERE WERE NO OBSTRUCTIONS ON OR NEAR THE RWY; NEITHER WERE THERE ANY CONSTRUCTION VEHICLES OR EQUIP IMMEDIATELY ADJACENT TO THE RWY. IT CERTAINLY DID NOT APPEAR THAT THE RWY WOULD HAVE TO BE CLOSED; WHICH WAS LIKELY WHY I WAS ALSO NOT LOOKING FOR ANY RWY CLOSURE MARKINGS.