Attachment 2 - DUIS_Tree_Release_2026.pdf
PDF 110 KB Posted
- Attached to
- Hebo Tree Release and Weed 2026 - Siuslaw NF OR
- Solicitation number
- 1240BG26Q0011
- Issued by
-
Department of Agriculture Forest Service
About this file
This is a Detailed Unit Information Sheet for the Hebo Ranger District's 2026 Tree Release and Weed project. The document specifies ten work units totaling 183 treated acres across multiple locations including Battle Ridge, Cedar Lake, Swab, Later, and Jenck areas. Each unit contains specific operational requirements including daily timing restrictions (DTR), treated acreage, planted species composition, tree planting density (TPA), and spacing specifications. Nine of the ten units have 2-hour daily timing restrictions requiring that saw noise operations start no earlier than 2 hours after sunrise and cease no later than 2 hours before sunset, reflecting wildlife protection requirements. Two units have no timing restrictions.
The units feature plantings from 2021 to 2025 with species including Western Red Cedar (WRC), Western Hemlock (WH), Sitka Spruce (SS), Big Leaf Maple (BLM), Douglas Fir (DF), and Noble Fir (NF). Tree densities range from 60 to 109 TPA with spacing between 20' × 20' and 27' × 27'. Unit types include standard area treatments, underplanted (U/P) areas, and gap treatments ranging from ¼-acre to 1-acre openings. Additional operational details include walk-in requirements on closed roads (ranging from 0.15 to 0.34 miles), access via locked gates, and specific geographic restrictions for timing compliance within portions of units, particularly in eastern and western sections relative to main and temporary roads.
View the file
Other files
Show all 11
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
DETAILED UNIT INFORMATION SHEET
HEBO RANGER DISTRICT
2026 TREE RELEASE AND WEED
Daily Timing Restrictions (DTR) refer to wildlife restrictions where saw noise is only allowed to start up 2 hours after sunrise and must stop 2 hours before sunset
U/P refers to units that were Underplanted Area refers to a portion of a unit Gap(s) refers to areas of 1/4-ac to 1-ac openings
WRC – Western Red Cedar WH – Western Hemlock SS – Sitka Spruce NF – Noble Fir BLM – Big Leaf Maple DF – Douglas Fir
Location and Description of Project Areas:
Subitem Treated Acres Unit Name
Daily Timing
Restrictions
Year & Species Planted
Average
TPA
Spacing
Additional Information
0001AA 11 Battle Ridge 29 Area 2-hr 2024
WRC/WH/SS/BLM
20’ X 20’ 2-hr timing restriction on NW section
0001AB 12 Battle Ridge 39 Area 2-hr 2024
WRC/DF/WH/SS/BLM
20’ X 20’
2-hr timing restriction on northernmost area
0001AC 1 Battle Ridge 33 Area 2-hr 2024
WRC/BLM
24’ X 24’
2-hr timing restriction on whole area with 0.34 mi Walk-in on closed road
0001AD 10 Cedar Lake 54 U/P & Gap 2-hr 2023
WRC/WH
25’ X 25’ 1-acre gap located within underplant
0001AE 7 Swab 58 Gaps N/A 2025
WRC/WH/SS
22’ X 22’
7 – 1 acre gaps with 2 gaps with 70 TPA & 5 with 90 TPA
DETAILED UNIT INFORMATION SHEET
HEBO RANGER DISTRICT
2026 TREE RELEASE AND WEED
Daily Timing Restrictions (DTR) refer to wildlife restrictions where saw noise is only allowed to start up 2 hours after sunrise and must stop 2 hours before sunset
U/P refers to units that were Underplanted Area refers to a portion of a unit Gap(s) refers to areas of 1/4-ac to 1-ac openings
WRC – Western Red Cedar WH – Western Hemlock SS – Sitka Spruce NF – Noble Fir BLM – Big Leaf Maple DF – Douglas Fir
Subitem Treated Acres Unit Name
Daily Timing
Restrictions
Year & Species Planted
Average
TPA
Spacing
Additional Information
0001AF 4 Swab 98 Gaps N/A 2025
WRC/WH/SS
25’ X 25’
4 – 1 acre gaps with 2 gaps with 90 TPA & 2 gaps with 70 TPA. Short
0.15 mi walk-in on closed road
0001AG 4 Later 46 Area N/A 2025
WRC
27’ X 27’ Located behind locked gate
0001AH
Jenck 3 U/P
2-hr
WRC/SS
23’ x 23’ 2-hr timing restriction on eastern most portions
0001AI
Jenck 20 U/P
2-hr
WRC/SS
22’ x 22’ 2-hr timing restriction on eastern portion, below main road
0001AJ 33 Jenck 64 Area 2-hr 2021
WRC/WH/SS
23’ x 23’
2-hr timing restriction on western portion, below temp road
File details come from the government source that posted it. Updated .