DEBRIS ON RWY; EXITED INTO GRASS TO AVOID.

Narrative

MY INSTRUCTOR AND I DEPARTED FROM BUTLER FARM SHOW ARPT IN A CLUB OWNED C-172 FOR AN INST PRACTICE FLT. WHEN WE DEPARTED AT XA30; WINDS WERE LIGHT AND VARIABLE FROM THE S. BOTH OF US HAD GOTTEN A WX BRIEFING WHICH INDICATED FRONTAL ACTIVITY WOULD BE MOVING INTO THE AREA LATER IN THE AFTERNOON. WE DID SOME INST WORK IN THE AREA SURROUNDING THE ARPT; THEN PROCEEDED TO NEW CASTLE ARPT AND MADE AN NDB APCH AND LANDED AT NEW CASTLE. WE NOTED THAT THE WIND HAD PICKED UP AND WAS NOW COMING FROM A WESTERLY HDG. WE DECIDED TO TERMINATE THE INST SESSION AND RETURN TO BUTLER FARM SHOW ARPT BECAUSE OF THE INCREASING WIND. UPON ARRIVING AT BUTLER FARM SHOW; I COMMENTED TO MY INSTRUCTOR THAT I FELT THE XWIND WAS BEYOND MY CAPABILITY AND ASKED HIM TO ASSIST IN MAKING THE LNDG. AT THAT POINT; HE TOOK THE CTLS AND MADE THE LNDG FORM THE R SEAT. AS WE WERE ABOUT TO TOUCH DOWN ON THE RWY; A LARGE PIECE OF CARDBOARD WAS BLOWN BY THE WIND ONTO THE CTR OF THE RWY. MY INSTRUCTOR ELECTED TO LET THE ACFT DRIFT TO THE R TO THE GRASSY AREA RUNNING ALONGSIDE THE RWY TO AVOID THE MATERIAL THAT HAD BLOWN ONTO THE RWY. AS THE ACFT PROCEEDED DOWN THE GRASSY AREA OF THE RWY; WE CROSSED A DITCH THAT HAD BEEN RECENTLY DUG AND FILLED IN. THERE WERE 2 STAKES; ONE ON EACH END OF THE DITCH; WITH YELLOW; PLASTIC MATERIAL TIED TO THE STAKES. THE ACFT WAS BROUGHT TO A STOP WITH NO INCIDENT; ALTHOUGH WE MAY HAVE HIT ONE OF THE STAKES; AND RETURNED TO THE HANGAR WHERE WE CLRED THE MUD FROM THE DITCH OFF OF THE PLANE. I FEEL THAT THE PLACEMENT OF THE STAKES SO NEAR AN ACTIVE RWY COULD HAVE CREATED A SERIOUS SAFETY PROB. I FELT MY INSTRUCTOR DID A GOOD JOB AVOIDING THE DEBRIS ON THE RWY AND CTLING THE ACFT ON ROLLOUT.