Design Error Blamed for I-40 Delays at NLR by Mark Friedman Posted 10/18/2004 12:00 am Updated 6 years ago A miscalculation in designing the Levy bridge in North Little Rock has pushed the completion date of the Interstate 30 project back several months — and possibly into 2007. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access articles older than 15 days. Articles newer than 15 days are not included in this offer. Purchase Now Already have archive access? Login to view this article.