Draft Exploration Plan - Checklist Reference Document~1.pdf
PDF 2 MB Posted
- Attached to
- ER Geotechnical Drilling and Sampling Rebid
- Solicitation number
- S-73000-00016581
- Issued by
- Jackson County, Oregon
About this file
This is a Draft Exploration Plan Checklist Reference Document for the State of Oregon's Emergency Response Geotechnical Drilling and Sampling project located in Jackson County on Highway 227. The project addresses three landslide locations at mile posts 43.1, 44.1, and 44.7, with work expected to be completed under a single mobilization. Each location requires three drill holes with estimated depths of 60 feet each, totaling 180 feet per site with approximately 20 feet of coring per hole. The anticipated drilling methods include HQ3 coring, hollow stem augers, and standard penetration testing at 2.5-foot intervals. Each drill hole will be instrumented with slope inclinometers and vibrating wire transducers for monitoring. Drilling is anticipated to take 4–5 days per location, with subsurface conditions expected to consist of asphalt and dirt. The project is designated with Environmental Assessment Number ERADMF25000 and is filed under Jackson County OR227 Tiller-Trail 2025 Emergency Response Landslides.
Environmental clearance requests have been submitted to the responsible environmental contact, Jessica Bochart. Utility locate tickets, erosion control measures, site access and right-of-way arrangements, and traffic control plans are noted as requirements with details to be determined. The document includes detailed geographic coordinates and scaled maps for each drill hole location, along with satellite imagery from 2026 sources. Special sampling such as Shelby tubes is not anticipated. The anticipated start date for drilling operations remains to be determined, pending completion of environmental clearance and pre-mobilization planning activities.
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Other files
| File | Type | Posted |
|---|---|---|
| 00016581 Request for Competitive Quotes.docx | DOCX document | |
| ATT C Bid Pricing Form~21.xlsx | XLSX spreadsheet | |
| Sample Contract~56.docx | DOCX document |
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Text version
GPS
42.753564, -122.870386
1000 ft
N
N © 2026 Google
© 2026 Google
© 2026 Google
Image © 2026 Airbus
Image © 2026 Airbus
Image © 2026 Airbus
DH-01 DH-02
DH-03
HWYE33L
Oval
HWYE33L
Oval
HWYE33L
Oval
HWYE33L
Text Box HWY 227 MP43.1 Tiller Trail Highway Exploration Plan 2/9/2026
Hwy 227 MP 43.1
February 9, 2026
² 0 0.08 0.160.04 mi
0 0.1 0.20.05 km
1:4,800
IMPORTANT NOTICE:
This product is for informational purposes and may not have been prepared for, or be suitable for legal, engineering, or surveying purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information.
DH-01 DH-02
DH-03
Access Road
HWYE33L
Oval
HWYE33L
Oval
HWYE33L
Oval
HWYE33L
Underline
HWYE33L
Polygonal Line
HWYE33L
Line
Project Location: HWY 227 MP 43.1
County: Jackson
Key No.: N/A
EA No.: ERADMF25000
Project File Location: County Jackson\OR227 Tiller-Trail 2025 ER Landslides
Project Description: Emergency Response Landslide
Number of Drillholes and Depths: 3
Estimated Footage: 60 ft ea., total 180 feet, 20 feet of coring
Anticipated Subsurface Conditions: Asphalt and Dirt
Anticipated Drill Methods: HQ3 coring, HSA, tracked or Truck, SPT 2.5’ intervals
Special Sampling (Shelby Tubes, etc.): Not expected
Instrumentation/Installation: 3 slope inclinometers and 1 VWT per Drill Hole
Anticipated Start Date: TBD
Anticipated # of Days to Drill: 4-5 days
Erosion Control Required: TBD
Utility Locate Ticket Numbers, submitted by?:
Environmental Clearance Requests Submitted to REC?:
Jessica Bochart
Environmental Clearance Obtained?:
Environmental Restrictions?:
Site Access, R/W, Staging Area:
Traffic Control Plan:
GPS Location
42.747164 , -122.865716
1000 ft
N
N © 2026 Google
© 2026 Google
© 2026 Google
Image © 2026 Airbus
Image © 2026 Airbus
Image © 2026 Airbus
DH-02DH-01
DH-03
HWYE33L
Text Box HWY 227 MP44.1 Tiller Trail Highway Exploration Plan 2/9/2026
HWYE33L
Oval
HWYE33L
Oval
Oval
HWY 227 MP 44.1 Tiller Trail Highway Exploration Plan
February 6, 2026
² 0 0.015 0.030.0075 mi
0 0.025 0.050.0125 km
1:960
IMPORTANT NOTICE:
This product is for informational purposes and may not have been prepared for, or be suitable for legal, engineering, or surveying purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information.
DH-02DH-01
DH-03
Access Road
HWYE33L
Oval
HWYE33L
Oval
HWYE33L
Oval
HWYE33L
Polygonal Line
Project Location: HWY 227 MP 44.1
Key No.: N/A
EA No.: ERADMF25000
Project File Location: County Jackson\OR227 Tiller-Trail 2025 ER Landslides
Project Description: Emergency Response Landslide
Number of Drillholes and Depths: 3
Estimated Footage: 60 ft each, total 180 feet, 20 feet each of coring
Anticipated Subsurface Conditions: Asphalt and Dirt
Anticipated Drill Methods: HQ3 coring, HSA, tracked or Truck, SPT 2.5’ intervals
Special Sampling (Shelby Tubes, etc.): Not expected
Instrumentation/Installation: 2 slope inclinometers and 1 VWT in each SI
Anticipated Start Date: TBD
Anticipated # of Days to Drill: 4-5 days
Erosion Control Required: TBD
Utility Locate Ticket Numbers, submitted by?:
Environmental Clearance Requests Submitted to REC?:
Jessica Bochart
Environmental Clearance Obtained?:
Environmental Restrictions?:
GPS
42.739403, -122.863553
1000 ft
N
N Image © 2026 Airbus
Image © 2026 Airbus
Image © 2026 Airbus
DH-01
DH-02
DH-03
HWYE33L
Oval
HWYE33L
Oval
HWYE33L
Oval
HWYE33L
Text Box HWY 227 MP 44.7 Tiller Trail Highway Exploration Plan 2/9/2026
HWY 227 MP 44.7
February 9, 2026
² 0 0.02 0.040.01 mi
0 0.03 0.060.015 km
1:1,200
IMPORTANT NOTICE:
This product is for informational purposes and may not have been prepared for, or be suitable for legal, engineering, or surveying purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information.
DH-01 DH-02
DH-03
Access Roads
HWYE33L
Oval
HWYE33L
Oval
HWYE33L
Oval
HWYE33L
Polygonal Line
HWYE33L
Line
HWYE33L
Line
Project Location: HWY 227 MP 44.7
Key No.: N/A
EA No.: ERADMF25000
Project File Location: County Jackson\OR227 Tiller-Trail 2025 ER Landslides
Project Description: Emergency Response Landslide
Number of Drillholes and Depths: 3
Estimated Footage: 60 ft each, total 180 feet, 20 feet each of coring
Anticipated Subsurface Conditions: Asphalt and Dirt
Anticipated Drill Methods: HQ3 coring, HSA, tracked or Truck, SPT 2.5’ intervals
Special Sampling (Shelby Tubes, etc.): Not expected
Instrumentation/Installation: 3 slope inclinometers and 1 VWT per Drill Hole
Anticipated Start Date: TBD
Anticipated # of Days to Drill: 4-5 days
Erosion Control Required: TBD
Utility Locate Ticket Numbers, submitted by?:
Environmental Clearance Requests Submitted to REC?:
Jessica Bochart
Environmental Clearance Obtained?:
Environmental Restrictions?:
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