The city of Marthasville is planning to install a speed bump on Northridge Drive as a test for potentially deploying them in other places.The city has been getting regular complaints about vehicles speeding along neighborhood roads. Alderman Dan Grafrath said he had received a petition signed by residents of 17 households on Northridge Drive, asking for a speed bump to be installed.Grafrath presented prices for different speed bumps during an Aug. 16 board of aldermen meeting. He highlighted a type of 6-foot-wide, rubber speed bump that could be purchased for less than $80. The city would have to buy about six to cross the width of a street in a single row.The speed bumps are 10 inches wide and 2 inches tall, meant to reduce speeds to 10 mph, Grafrath said.Grafrath had suggested installing the speed bumps on Grand Avenue and Country View Lane, as well as Northridge Drive. The total price for those would have been about $1,400, plus the cost of labor to install them, he said.East Ward Alderman Nick Lange suggested starting with just Northridge Drive, since that is where all the petition signers live. No signatures were collected on Grand Avenue or Country View Lane, he said.“It’s cheap enough that we can install them and see how it takes off,” Lange said. “If people from Grand or Country View like it, they can sign a petition and present it as well.”Based on Grafrath’s estimate, the speed bumps for just Northridge would cost about $468.The board of aldermen agreed to purchase the speed bumps for just Northridge, voting 4-0. They did not discuss a time line for when the speed bumps might be installed.Speed bump