River system · Planning application
Irrigation district gets approval for under-100-foot retaining wall on Boise River
The Nampa & Meridian Irrigation District plans a rock retaining wall four to ten feet tall to widen an access drive for maintenance of a new irrigation structure. The city approved it administratively in June, with conditions limiting construction hours and requiring erosion controls and revegetation.
From the filing
The application's description as it appears in City of Boise's record. See the official record
The Nampa & Meridian Irrigation District proposes building a retaining wall along an existing access drive at the Ridenbaugh Canal intake, east of the Eckert Bridge on the Boise River. The wall would be under 100 feet long and four to ten feet tall, and would widen the drive to improve maintenance access for a new irrigation headworks structure.
Boise River System Permit and Cat II Hillside
Project name on file: 3960 S ECKERT RD - CFH
Timeline
July 5, 2025
Appeal Period: Completed
June 24, 2025
Review Complete: Completed
June 24, 2025
Current Planning: Complete
April 21, 2025
Current Planning: In Review
April 21, 2025
Assign Reviewers: Completed
April 17, 2025
Fee Payment: Payment Received
April 17, 2025
Prescreen Review: Passed
April 15, 2025
Prescreen Review: In Progress
March 5, 2025
Application Submittal: ePlanReview
Updated missing fields in Project Details received from Mack Fox to generate ePlan case.
Feb. 18, 2025
Application filed
Documents
Site plans
- Download Detailed site plan with grading and resource notes
Site plan for the Ridenbaugh Canal rockery wall showing existing and proposed contours, retaining walls, and general grading conditions with subgrade and final inspection requirements.
April 24, 2025 · 5 pages · 17.8 MB · PDS-Maps and Drawings
Project narrative
- Download Letter of intent for rockery wall installation
Applicant's letter describing a rockery wall under 100 feet long, 4 to 10 feet high, widening an access drive for irrigation district maintenance, disturbing under 0.04 acres.
April 24, 2025 · 1 page · 50 KB · PDS-Letter of Intent
Decisions
- Download Administrative approval letter for river system permit
Letter approving a river system permit for a retaining wall along an existing access drive beside the Boise River, with findings and conditions of approval.
June 25, 2025 · 5 pages · 209 KB · PDS-Action Letter
Notices
- Download Notice of approval for Boise River System permit
City of Boise notice that staff found the retaining wall project follows the zoning ordinance and was approved, with an appeal deadline of July 7, 2025.
June 23, 2025 · 2 pages · 743 KB · PDS-Legal Notice
Application
- Download Application form for Boise River System permit and Cat II hillside
Project application form for a Boise River System permit and Category II hillside review on a 1.81-acre property owned by Nampa & Meridian Irrigation District, submitted by RSCI.
April 28, 2025 · 3 pages · 200 KB · PDS-Application
Studies and reports
- Download Boulder retaining wall design calculations
Soil and boulder properties, earth pressure, and overturning and sliding factor-of-safety calculations for a 12-foot boulder retaining wall at the diversion dam.
April 24, 2025 · 4 pages · 264 KB · PDS-Other Small Docs
Photos
- Download Site photos with rockery wall locations marked
Six photographs dated April 17, 2025 showing the rockery wall face and its approximate location, with the wall marked on the images.
April 24, 2025 · 6 pages · 32.5 MB · PDS-Photos
Other documents
- Noticing radius map
June 23, 2025 · 669 KB · PDS-Maps and Drawings
- Statement of legal interest
April 24, 2025 · 50 KB · PDS-Statement of Legal Interest
- Submittal checklist
April 24, 2025 · 864 KB · PDS-Submittal Checklist
- Transmittal to review agencies
April 24, 2025 · 99 KB · PDS-Transmittal Agencies
- Fee receipt
Receipt for a payment made on the River System planning application.
April 17, 2025 · 131 KB · PDS-Receipts
