DEWR (406) 675-2700

Project

Mollman Pass Trail Culvert

River or area

Mission Valley reservoirs and canals

Near Kicking Horse

Program

Roads

Status

Scheduled for July and August 2023

Now

Lake County planned to replace the culvert with a bridge in July and August 2023.

Updated September 2023

Contact

Scott Johnston, PE

Roads Program Manager
(406) 676-2600 ext. 6202

Confederated Salish and Kootenai Tribes
Natural Resources Department
Division of Engineering & Water Resources

The two corrugated metal pipes of the Mollman Pass Trail culvert, their mouths half buried in snow.
Mollman Pass Trail The double culvert in winter
Looking through one of the culvert's corrugated pipes toward daylight, ice on its floor.
Mollman Pass Trail Inside one of the two pipes

Project Overview

This Lake County structure is a large Double Structural Plate Pipe culvert carrying Mollman Pass Trail near Kicking Horse over a canal owned by FIIP. It was inspected by MDT because it is greater than 20 feet in length and falls under their Federal jurisdiction for inspection. Lake County had installed support bracing after a previous routine inspection, and was allowed to keep the road open. The most recent inspection noted that some of the bracing had been removed due to debris blockage and MDT instructed Lake County to close Mollman Pass Trail.

In response, Lake County quickly worked with CSKT, MDT, and FIIP and worked out a temporary and long term solution. MDT allowed Lake County to re-install the cross-bracing immediately and keep the roadway open, with the intention of replacing the structure by the end of July-August, 2023. FIIP agreed to the maintenance of removing debris.

By year

Phases

  1. July 2023

    Design

    Done

  2. July and August 2023

    Construction

    Done