Burns & McDonnell is catching up with Black & Veach in the competition to be the Kansas City area’s largest engineering design firm, according to the annual rankings by Engineering News-Record, the industry’s most respected scorekeeper. Burns & McDonnell climbed from 20th to 18th place, posting $1.04 billion in revenues in 2013. Black & Veatch dropped two notches to 16th in the United States with $1.3 billion in revenues. HNTB Cos. was 21st, Terracon Consultants moved up from 38th to 35th and Populous jumped 24 notches to 108th. All told, the Kansas City area was headquarters to 11 firms in the ENR Top 500. Just last week the Kansas City Council approved Burns & Mac’s $140 million headquarters expansion plan.