A final step in restoring Pierce Creek will happen on March 30, 2019 and we need volunteers to make it reality. Planting the streamside area around the rebuilt bridge at Pierce Creek (on the South Fork of the Boise River, near the Danskin boat ramp) will stabilize the stream bank of this important habitat.
The Pierce Creek Bridge was installed in 2011 and the footings were then rebuilt in 2018 after watershed debris flows undermined the foundation. This project was inspired and led by Trout Unlimited, working with the Mountain Home Highway District and the Boise National Forest. With a bridge replacing a culvert on Pierce Creek, the free passage of wild trout and other fish species is secured for this tributary to the South Fork Boise River.
Join the contingent of volunteers to help finish the job at Pierce Creek.
- Saturday, March 30, 2019.
- Meet at the Albertson’s parking lot at Federal Way and Gowen Road between 8:30 a.m. & 9:00 a.m. We will make carpool arrangements and leave from there at 9:00 a.m. and carpool to the South Fork Boise River.
- In the morning we will gather willow cuttings at locations along the South Fork Boise River.
- In the afternoon we will plant the cuttings in the bank along Pierce Creek.
- Lunch will be provided by Ted Trueblood Chapter of Trout Unlimited, using our eager and experienced cooking crew and equipment from our summer Trout Camp.
- Total work time is estimated to be four to six hours. Mid-afternoon return to Albertson’s in Boise.
- Bring work gloves. Bring a folding chair if you have one for sitting at lunch.
- Please RSVP to Bruce Johnstone at BJohnstone1@cableone.net by Thursday March 28.
Here is a collection of photos from four of the photo points along the South Fork Boise River. Photos from November 24, 2018.
Pool at site sfboise#17
The above photo is from the bracket on the sfboise#17 sign. This site is just downstream of the boat ramp, about a mile downstream of Anderson Ranch Dam.
Camera Stand at #sfboise17
The quiescent pool in the South Fork is formed from the debris slide from September 12, 2013 that temporarily blocked the river flow as very large boulders tumbled into the river from the landslide. In the past five years much of the material have moved downstream except for the largest boulders that still form a rapid and back up water to form this pool.
Above Reclamation Village #sfboise16
Above Danskin boat area.
Pierce Creek Bridge
Camera stand for #sfboise1
The bridge abutments on the Pierce Creek bridge have been replaced. The project is a cooperative venture of the Mountain Home Highway District and the Boise National Forest. The abutments are treated laminated wood beams and posts, and driven several feet into the ground next to the stream.
The bridge over Pierce Creek, a spawning tributary to the South Fork of the Boise River
The project was completed in fall 2018 and secures the bridge for the long term.
A mud crust over the plate on the bridge. Mud deposited from the numerous debris flow episodes 2013-2014.
The bridge was placed on its original sill in November 2011. The Elk Complex Wildfire of 2013 led to massive debris flows in Pierce Creek and ultimately would have compromised the foundation for the bridge. So the decision was made to life the bridge and replace the substructure and put it back in place, which happened in fall 2018.
Future high flows and flooding will easily pass under the bridge. Pierce Creek fish passage to its headwaters will continue.
Boise National Forest
Contact: Mike Williamson
Phone: (208) 373-4105
Bridge repairs cause road closure along SF Boise River
Boise, Idaho, Aug. 27, 2018 — The Mountain Home Highway District will enact a closure on a portion of Prairie Road (Forest Road 121), located about 7 miles south of Prairie near the Danskin boat ramp, beginning Sept. 5 for around 14 days while repairs are made to the Pierce Creek Bridge footings.
This closure will affect boaters on the South Fork Boise River who typically end their float at the Danskin boat ramp, as it will prevent road access to the ramp from upstream. The ramp itself will remain open, but only accessible if driving in from the north.
“Closing this portion of the road is expected to impact recreationalists, local residents and businesses,” said Acting Mountain Home District Ranger Holly Hampton. “We ask that travelers in the area reconsider their routes.”
Since the 2012 Trinity Ridge Fire, there has been a significant amount of debris flow on Pierce Creek that has impacted the bridge footings and making repairs necessary. This work is being done with funding from the Forest Service and MHHD.
This portion of the road is managed and maintained by MHHD.
For more information contact the Mountain Home Highway District, 208-587-3211.
(see attached map)