Portneuf Greenway Trail System Design Guidelines

Design Criteria (PDF)

The purpose of these Design Guidelines is to establish a consistent pattern to the development of the Portneuf Greenway Trail System. The plan outlines design treatment and recommendations for various components including trail construction.

Section maps outline the plan for each of the seven Class I corridors section by section. These maps are available by contacting Mori Byington at Bannock Transportation Planning Organization.

In 1992, The National Park Service funded The Portneuf Greenway Implementation Plan, which was the first plan to guide the development of the Portneuf Greenway Trail System. The Implementation Plan envisioned a series of multi-use trails along the Portneuf River providing connection to river front parks, Idaho State University, and Old Town Pocatello. Over the last sixteen years the vision of the Portneuf Greenway Trail System has grown from a focus on just the river to the entire valley.

The Portneuf Greenway Master Plan expands the Portneuf Greenway Trail System to one where the community is connected to the river and public open spaces located on the hills surrounding the community. The trail system also expands from multi-use trails to include other bicycle and pedestrian facilities to ensure connectivity throughout the valley. In addition, design standards and a maintenance plan for the Portneuf Greenway Trail System were developed.

The vision of the Portneuf Greenway Master Plan is to create a trail system. These corridors will link the Portneuf River to Old Town Pocatello, Idaho State University, public lands, and the hills which surround the valley. The primary goal of this plan is to link the community to the river and public lands.

The heart of the master plan is multi-use corridors which are separated from the roadway and follow open spaces like the Portneuf River. Existing open space locations, geography of the valley, and proximity to public lands do not allow the system to be entirely connected by Class I Trails. Other types of non-motorized facilities such as sidewalks, bicycle lanes, and low volume streets must serve as connectors from Class I Trails to other Class I Trails and to public lands. Figure 1-1 demonstrates how the entire system is connected to achieve the goal of connecting the community.

To assist further development of the trail system, the Portneuf Greenway Master Plan’s policies, recommendations, and maps should be incorporated into City of Pocatello, City of Chubbuck and Bannock County’s comprehensive plans and land use ordinances.

The Portneuf Greenway Trail System has three complementary parts: Class I Trails (paved and separated from roadway), Class II Trails (non-paved trails), On-Street Connections (consisting of bicycle lanes and sidewalks, low volume streets). Each of these components are critical for a connected system.