Design Error Blamed for I-40 Delays at NLR by Mark Friedman Posted 10/18/2004 12:00 am Updated 5 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 stories older than 15 days. Purchase Now Already have archive access? Login to view this article.