Projects

SH-162 Flood Repair

The goal of this project is to repair damage from April 2024 flooding along SH-162.

SH-162 Flood Repair

The goal of this project is to repair damage from April 2024 flooding along SH-162.

Overview

ITD is repairing flood damage along SH-162 to restore roadway stability, improve long-term resilience, and ensure the route remains safe and reliable for the traveling public and durable against future flooding.

Rock armoring near SH-162 to protect the roadway.
An excavator is clearing SH-162 after the major floods in 2024.

Construction

Crea Construction will resume repairs to 2024 flood-related damage between mileposts 16 and 20 south of Kamiah from summer through fall 2026. Construction was delayed in 2025 to allow time for environmental permitting. Crews must isolate and dewater work areas to protect water quality and aquatic habitat before riprap replacement can begin.

Riprap is a layer of large rock to stabilize the ground during high water or flooding events that can weaken the embankment. Riprap helps absorb and redirect the force of the water to protect the roadway. Their installation supports ITD’s commitment to improve roadway stability and reduce the risk of future long-term closures.

A map graphic titled “North-Central Idaho Flood Repair Project” shows riprap repair locations along State Highway 162 near Sevenmile Creek and Thorn Springs Creek, with mileposts labeled between 16.78 and 19.31 near Kamiah.
A map shows planned riprap repair locations along State Highway 162 as part of the North-Central Idaho Flood Repair Project.

The project also includes fish salvage operations during dewatering activities to minimize impacts on local fish populations. ITD is coordinating closely with regulatory agencies and the Nez Perce Tribe before and during construction to help ensure environmental requirements are met.

Contact

Patrick.Conro@hdrinc.com