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Nez Perce County Road Closed After Flood Damage
Summit Grade closed indefinitely between Lenore and Gifford due to washouts
Mar. 18, 2026 at 6:40am
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Nez Perce County officials have closed a rural roadway known as Summit Grade between Lenore and Gifford after recent flooding caused significant damage, including multiple large washouts along the grade that will require extensive repairs. The timeline for reopening the road remains unclear, and drivers are advised to avoid the area and use alternate routes until further notice.
Why it matters
Rural roads are critical infrastructure for communities, and damage from extreme weather events like floods can isolate residents and disrupt commerce. The closure of Summit Grade highlights the ongoing challenges that rural areas face in maintaining their transportation networks in the face of a changing climate.
The details
According to a county notification, County Road R-340, also known as Summit Grade, is closed between U.S. Highway 12 and Berriman Road. The closure follows flood-related washouts that left the roadway in hazardous condition, with officials saying the damage includes multiple large washouts along the grade that will require extensive repairs.
- The road closure was announced on March 18, 2026.
The players
Nez Perce County
The local government agency responsible for maintaining the roads in Nez Perce County, Idaho.
What’s next
The timeline for reopening Summit Grade remains unclear, as officials work to assess the extent of the damage and plan the necessary repairs.
The takeaway
This road closure highlights the vulnerability of rural transportation infrastructure to extreme weather events, and the importance of investing in resilient infrastructure to support the economic and social well-being of rural communities.
