Construction spending in the retail sector saw a dip in June, according to a report by the Associated General Contractors of America, but the first half of the year recorded an overall gain. 

Commercial (which includes retail, warehouse, and farm) construction declined 1.6% in June, per the report, but climbed 8.6% year-to-date. Association official said spending appears to have leveled off after a strong early start to the year prompted by mild winter weather conditions in many parts of the…