An agreement is in hand to resolve a years-long dispute between Wasco County and the City of The Dalles over who should have responsibility to maintain nearly 15 miles of roads in areas annexed by the City.  Under the deal, the County and City will work together to chip seal the roads, and then the City will take over responsibility.  City Manager Nolan Young says a change in City in-fill development policies to allow streets to be developed with good surfaces without other infrastructure until urbanization is complete set the stage for the agreement.   County Commissioners approved the agreement Wednesday, and the City Council will vote on it on Monday.