DES MOINES, Iowa — Traffic violations will now be more expensive in Des Moines. KCCI says the city rewrote its ordinance to comply with a change in Iowa law. Red light violations increased from $65 to $100. Speeding more than 11 mph over the limit is now a $75 fee. That fine doubles if in a roadwork zone. If you’re caught going more than 26 mph, it is now a $250 fine.