The Idaho Transportation Department has confirmed that the posted speed limit on the Sandpoint Byway remains 45 mph, despite newly installed signs indicating a higher rate of 55 mph. The clarification came via email Wednesday after local residents raised concerns about the discrepancy, according to bonnercountydailybee.com.
Heather McDaniel, an ITD public information officer, told the publication that “The speed limit has been 45 mph through the byway since it was completed in 2010.” She added that the installation of the 55 mph signs was premature and does not reflect the current legal limit, as first reported by the Bonner County Daily Bee.
The confusion centers on U.S. Highway 95 north of the Long Bridge in Sandpoint. Drivers traveling this stretch will see 55 mph signage, but ITD officials emphasize that the enforceable limit is still 45 mph until further notice. The agency advises motorists to obey the existing speed restrictions and remain alert for construction crews and temporary traffic controls in the area.
The official increase to 55 mph is scheduled for the week of September 21, contingent upon the completion of guardrail repair work by ITD contractors. Once those safety improvements are finalized, the higher speed limit will apply from the north end of the Long Bridge to Tibbets Lane in Ponderay.
The Sandpoint Byway, which opened in 2010, has long served as a scenic alternative to the main highway corridor. Local officials and transportation planners have previously discussed adjustments to traffic flow and safety measures along the route. As seen with recent infrastructure decisions, such as the utility mandates approved for the Idaho Club project or the reduced lot count for the Coolin Subdivision, Bonner County and state agencies often coordinate closely on road improvements and development impacts.
Until the guardrail repairs are complete, drivers should continue to adhere to the 45 mph limit. ITD has not specified a precise date for the change other than the week of September 21, leaving a window of uncertainty for commuters and tourists alike. The agency plans to update signage and enforcement protocols once the work is finished.