Crowley recently welcomed its fourth and latest tugboat, Athena, a 77-foot work vessel that offers “the most bollard pull for a tug under 80 feet in the market” and runs on two Caterpillar Marine 3516 Tier IV-compliant engines.  Built by Diversified Marine Inc. and chartered from Brusco Tug & Barge, Athena is expected to serve the Pacific Northwest from out of Puget Sound.   “We are pleased to have built another record-setting tug for Crowley’s fleet,” Diversified Marine Vice President of Business Development and Operations Frank Manning said. “Athena is going to be a head turner in the Puget Sound.”   The…