Supply Lines is a daily newsletter that tracks trade and supply chains disrupted by the pandemic. Sign up here . The number of container ships waiting to enter the largest U.S. gateway for transpacific trade swelled to another pandemic record and the average wait jumped to more than eight days, adding delays and costs during peak season for companies to rebuild inventories. Fifty-five vessels were anchored or idling further offshore waiting to offload at the twin ports of Los Angeles and Long Beach, California, as of late Friday, up from 40 two weeks ago, according to officials who monitor marine traffic in San Pedro Bay. The average wait rose to 8.5 days compared with 7.6 in late August, according to L.A. port data . L.A. officials have exhausted their designated anchorage space for overflow traffic and had a record 17 ships in so-called drift zones — areas used in […]