Since 2010 the City has been implementing annual
trail/bridge/road improvements with grants from Idaho Parks and Recreation to
control erosion and improve water quality in the area. The City works with BLM,
USFS, ISU and many volunteers to monitor, evaluate, and implement the
improvements. Prior to 2010 the
City implemented a variety of erosion control projects.
The City of Pocatello implemented this $1.2 million wetland
project to capture stormwater runoff from the Day Street drainage within the
City. The Day Street drainage contains about 10% of the City’s runoff. Construction
occurred in 2009.
Upper Portneuf River
Idaho Fish & Game, the Cariboo Conservancy and many
volunteers have worked together to install fencing and water gaps
on the Upper Portneuf above Lava. Work is ongoing.
Lava Hot Springs Spring Fencing Project - 2012
Idaho DEQ Funds awarded to protect spring water from cattle.
Nordic Ski Area Watershed Improvement – 2010Description: The purpose of this project is to control erosion on the ridge above the ski area. The project focused on obliterating an unauthorized, installing drainage on an existing ATV trail, and rehabilitating severe gullies upslope of the old ATV trail. Both the gully area and the trail obliteration area were seeded and protected with Woodstraw.
- Unauthorized ATV Trail: A portion of the trail was obliterated and relocated on an existing road with more suitable slope and grade. The backhoe ripped the compacted trail and spread nearby slash to obliterate the trial for a length of about 1,500 ft.
- Existing ATV Trail- The primary ATV trail that starts at the Nordic Ski Area lodge and travels up to the ridge where the gully erosion is occurring has also eroded considerably because it is located on a steep slope with few drainage structures. Ten to fifteen waterbars were constructed on the remaining portion of the trail to drain water and prevent erosion
- Gully Rehabilitation- Five or six terraces were constructed with a backhoe across the gully to control run-off and prevent water from accumulating. The area affected above the gully, including the eroded area, and the area below the erosion, is about 5 acres in size.
Funding/Partners: The Forest acquired $6,000 in RAC funding for the Forest Road Crew to perform the work. The project was coordinated with the City of Pocatello which operates the Nordic Ski Area. City employees contributed an estimated $2,000 in in-kind labor to spread Woodstraw and seed along with USFS staff. The USFS contributed an estimated $3,000 in in-kind labor and supplied the Woodstraw and seed.
During: Steep portion of the trail obliterated by the forest road crew.
During: The city of pocatello workers spreading woodstraw to aid in site recovery and participate in the project.
Before: Erosion on the atv trail leading to the ridge.
During: Approximately 10-15 waterbars constructed to improve trail drainage and reduce erosion.
Before: Sever gully erosion reaching depths of 6 feet on ridge above nordic ski area covering about a ½ acre.
After: Looking upslope at the constructed terraces that are designed to direct water away from the gullies and not allow water to concentrate and erode.
During: Construction of a terrace by the fs road crew to eliminate concentrated flow from forming in the old gully.
After: Seeding and woodstraw applied to gully areas with a view of a terrace at the upper of the photo.
During: Looking downslope at the constructed terraces prior to seeding and woodstraw.
After: Lower terrace completed and ready for seeding and Woodstraw.