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When a road is closed for a project the Road Department monitors the alternate routes that traffic is taking and obtains traffic counts, both manual and with automated devices, to determine the number of vehicles per day (vpd) on nearby rock roads. If the traffic count is consistently 200 vpd or greater the County will provide calcium chloride dust control. This approach is consistent with our Fugitive Dust policy. The calcium chloride is intended to suppress the dust, not eliminate it, in order to create safer driving conditions.
Find information about Linn County Secondary Road construction projects that are scheduled for the current year as well as the five-year construction plan on our Construction web page.
Residents can sign up for project updates through Notify Me on our website. Notify Me will allow you to receive updates by e-mail, text message or both. Updates can also be obtained by calling the Linn County Engineer’s Office at 319-892-6400.
Roads may be closed during construction to keep everyone safe or to allow materials to cure before traffic is allowed back on. Drivers not following the road closure signs are putting themselves and the workers in danger. Drivers that do not follow the signing may be ticketed and invoiced for any damage caused.
Barricades & possibly fence blocking access
Barricades staggered to allow access
No traffic allowed in or out
Traffic allowed to location within the closure
Impassible conditions within closure
Traffic not allowed to drive through without a destination within the closed road
All (concrete, asphalt, sealcoat, rock, etc.) drives adjacent to the paving will receive a granular taper to allow for the difference in road elevation (approximately 8”) after paving. Additional rock is available for $15/ton (10 ton minimum) if the property owner would like more rock. Property owners can pay to have their paved drives adjusted at a cost of $6/square foot. The cost to adjust a typical driveway is approximately $2,200. The rock placement and paved drive replacement is limited to within the County right-of-way. Please contact the Engineer’s Office if you are interested in having your paved drive replaced.