Exhibit A - Specifications~1.pdf

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ATTACHMENT A

TECHNICAL SPECIFICATIONS

SCOPE OF WORK

The scope of this project is to provide geotechnical investigation services, including all equipment, labor, machinery, supplies, and materials to access and drill up to ten geotechnical borings for the I-84 (Westbound) over Union Pacific Railroad bridge replacement project in Hood River, Oregon. Several of the borings are located within a wetland and subject to in-water work restrictions. The remaining borings are located on slopes and require site preparation prior to drilling. Region 1 Geotechnical Engineering / Engineering Geology (R1 Geo) has prepared these specifications and anticipates hollow stem auger, mud rotary, and rock coring techniques. This work shall include, but not be limited to, obtaining right-of-entry and other permits, site preparation, mobilization/demobilization to/from the site and within the project area, drilling operations, sampling, supply, and containment of water for drilling operations, containment and disposal of drill cuttings and fluids, and site clean-up and restoration.

STATEMENT OF WORK

Project Manager/Geologist:

Primary Contact Jeff Jones, C.E.G.

Engineering Geologist ODOT Region 1 Geo/Hydro/Hazmat Unit 123 NW Flanders St.

Portland, OR 97209 Telephone: (503) 302-6460

Secondary Contact Palo Giscombe, P.E.

Geotechnical Engineer ODOT Region 1 Geo/Hydro/Hazmat Unit 123 NW Flanders St.

Portland, OR 97209 Telephone: (503) 807-5541

Project Location: The project is located adjacent to I-84 Westbound, between mile points (MP’s) 63.35 and 63.47 in Hood River, Oregon.

Diagrams/Drawings/etc.: Attached are the following:

Vicinity Map and Site Plan 2 pages Attachment A – Joint Permit Application 28 pages Attachment B – Special Provision 00290 8 pages

Project Dates and Schedule: Work shall begin after the Notice to Proceed is issued, and R1 Geo intends to complete the work described herein during and adjacent to the In-Water Work Window (IWWW), which extends from July 15 to September 30. The project includes work on Union Pacific Railroad (UPRR) ROW and the contractor will be responsible for obtaining the necessary temporary access permit and coordinating access with the railroad. Note that the UPRR permit process typically takes 45 to 60 days and includes fees and insurance requirements. In any case, the work shall be completed no later than September 30, 2024. The start date will be the date the Contractor mobilizes equipment and personnel to the work site.

R1 Geo intends to hold a pre-bid site meeting to provide the opportunity for bidders to observe site conditions and evaluate access prior to bidding. Schedule information for the site meeting will be provided separately.

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The contractor shall accept the proposed schedule, in writing, or provide a written alternative proposal to the Project Manager within five (5) business days after receipt of the Notice to Proceed. The Project Manager will either approve the proposed schedule or propose an alternate schedule to the contractor within two (2) business days after receipt of the contractor’s submittal.

Access and Staging:

As shown on the attached Site Plan, a total of up to ten borings are planned. For the purposes of discussion, they have been split into three groups:

Wetland Borings: TB21683-05, -06, and -08 are located within a designated stream/wetland and subject to in-water work restrictions. The wetland is partially on ODOT ROW (beneath the highway) and is otherwise on or adjacent to UPRR or Mt. Hood Railroad (MHRR) ROW. Access to the site will require permission from the railroad(s). The contractor will be responsible for obtaining the necessary temporary access permits and coordinating access with the railroads. Note that the UPRR permit process typically takes 45 to 60 days and includes fees and insurance requirements.

Vehicular access to the wetland area is via a gravel road extending west from Riverside Drive and running along the eastern margin of the wetland, with areas on ODOT ROW available for staging equipment and materials needed to complete the work. From the access road at the east end of the wetland, the contractor shall provide equipment and personnel necessary to perform minor grading as needed to provide access down the slope for a track-mounted drill rig. The slope in question is densely vegetated with shrubs and small trees, with several logs on the ground, and is about 10 to 15 feet tall. Note that equipment access to the railroad embankment north of the wetland is not allowed.

From the base of the slope, the contractor shall clear vegetation and place crane mats as needed to allow the drill rig to traverse the wetland and remain above the water surface. Water in the wetland is typically less than 1 foot deep but varies seasonally and in response to changes in the adjacent Columbia River water levels.

Attachment A presents the Joint Permit Application (JPA) that ODOT submitted for work within the wetland and provides additional information and requirements. In particular, the narrative in Section 4 provides information regarding the proposed access approach and environmental protection requirements.

Slope Borings: TB21683-03, -04, -14, and -15 are located on forested slopes. A small-footprint or limited access drill rig is preferred for these locations in order to minimize site disturbance. Access will require clearing and grading, to be performed by the contractor. Removal of trees is to generally be avoided and is limited to those trees less than 6 inches DBH (diameter at breast height), or as directed by ODOT.

Temporary cuts for access shall be limited to 4 feet or less in height, or as directed by ODOT. The east side locations (TB21683-14 and -15) are located on ODOT ROW and may be accessed from either the top or bottom of the slope via ODOT ROW. The west side locations (TB21683-03 and -04) are located on UPRR ROW and are accessible from the top or from the bottom of the slope via UPRR ROW. Any work performed on UPRR ROW will require permitting and possibly a railroad flagger if accessed from the haul road, to be provided by the contractor.

Railroad Access Road Borings: TB21683-25 and TB21683-26 are located on a gravel-surfaced access road adjacent to the UPRR tracks. Any work performed on the access road will require permitting and a railroad flagger, to be provided by the contractor. TB21683-24 is also located on UPRR ROW, at the crest of the slope, adjacent to and accessible from the highway.

Utility Search: The contractor is responsible for utility locates. ODOT will request an independent public utility locate and provide “ticket” number(s) and details to the contractor.

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Temporary Protection and Direction of Traffic (TP-DT): While all of the borings are located in off-road areas away from the highway, a shoulder and/or single lane closure may be needed during mobilization and demobilization of equipment for borings TB21683-14 and -15 at the east end and TB21683-24 at the west end, depending on the access route chosen. In the event TP-DT is needed, the contractor shall provide all TP-DT devices and personnel for the shoulder and lane closures, in conformance with the 2009 edition of the Manual of Uniform Traffic Control Devices (MUTCD), Part VI and the Oregon Temporary Traffic Control Handbook (2011). The contractor shall submit a traffic control plan to the Project Manager/Project Geologist for review at least 5 business days prior to beginning work. The contractor will be responsible for correcting any inconsistencies identified in the plan. A revised plan will then need to be submitted to the primary / secondary contact for review within 48 hours.

Safety: Safety is of primary concern on this project, for the traveling public, Contractor's crew, and State employees. In the event the Project Manager/Project Geologist or designated representative feels there are concerns regarding safety issues, the project may be halted until such time those issues are resolved to the satisfaction of the State. The Contractor shall take every precaution necessary to ensure the safety of all parties and the protection of all property associated with this project. All contractor employees shall wear an orange, red, or yellow safety vest or other garment that meets ANSI 107-1599, Class III. In addition, all members of the crew must be eRailSafe certified for the work within the UPRR Railroad right of way.

Emergency Shutdowns: In the event that traffic or other highway related emergencies require suspension of drilling operations, the primary/secondary contact may authorize standby for the time that operations are suspended or the remainder of the shift, whichever is less. The maximum amount of standby authorized for an emergency shutdown shall not exceed the hours defined in the Bid Item Descriptions. Payment shall be calculated as defined in the section Bid Item Descriptions.

Drilling Equipment: Contractor shall supply a drill rig capable of advancing hollow stem auger, mud rotary, and rock coring techniques to the depths shown in Table 1. Contractor shall supply mud rotary tools with a minimum nominal diameter of 4 inches. The drill shall be equipped with a 140-pound “Auto-Hammer”-type hammer system. The Contractor shall provide current hammer calibration data to the primary / secondary contact prior to beginning work. Rock coring equipment should be type HQ3. R1 Geo has supplied anticipated sampling intervals, which are highly dependent on the materials encountered.

Drill Fluids: Contractor shall provide all necessary drilling fluids. The contractor shall prevent drill fluids and cuttings from directly entering any waterway, storm drain or sewer at any time during drilling operations.

Discharge of drill fluids or cuttings directly into State waters in any form is strictly forbidden. Upon completion of the boring, the contractor shall collect, transport, and dispose of used drill fluids. Time, labor, and equipment necessary to supply and dispose of the drill fluids shall be considered incidental to drilling. If drilling in unpaved areas, drill fluids shall be handled in accordance with the Environmental Protection section below.

Drilling additives approved for use in water well drilling are preferred. In all cases when using drill additives, use those additives that are nontoxic and proven safe to the environment. The Contractor shall have on site Safety Data Sheets (SDS) for all drilling fluid additives.

Investigation Derived Waste (IDW): The contractor shall collect and dispose of drill cuttings/fluids.

Placement of drill cuttings or fluids on ODOT right-of-way shall not be permitted. Except for contaminated cuttings/fluids described below, collection, handling, and disposal is considered incidental to drilling.

Collection and disposal of single-use PPE (gloves, earplugs, etc.) shall be the responsibility of the Contractor.

If contaminated cuttings are encountered, they shall be segregated from uncontaminated cuttings whenever possible. If contaminated cuttings are encountered, drilling may temporarily stop while the

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Project Manager/Project Geologist evaluates the contamination and may not proceed without approval from the Project Manager/Project Geologist. The Project Manager/Project Geologist or designee shall determine when contaminated cuttings are present and shall direct the contractor when to place the cuttings in contractor-supplied drums. Each drum shall be labeled with the boring number, drilled interval, and date. The contractor shall transport the filled drums to a designated storage area, placing the drums as directed by the Project Manager/Project Geologist.

Environmental Protection:

Attachment A presents the Joint Permit Application (JPA) that ODOT submitted for this work and provides additional information and requirements. In particular, the narrative in Section 4 of the JPA provides information regarding the proposed access approach and environmental protection requirements.

Attachment B presents the Special Provisions pertaining to environmental protection for this work.

At a minimum, the contractor shall implement the following Best Management Practices for Drilling Operations (Drilling BMPs) when operating near or within aquatic resources. Contractor shall supply, install and maintain all necessary erosion and sediment control devices (e.g., silt fence, bio-bags, booms, inlet socks, etc.) as directed by the Project Manager/Project Geologist. The contractor shall remove the devices only as directed by the Project Manager/Project Geologist. Contractor shall have sufficient quantities of silt fence and bio-bags or booms immediately available to control the spread of cuttings/drill fluids. Erosion and sediment control shall be considered incidental to drilling.

The following Drilling BMPs shall be implemented:

• Access shall be as directed by the Project Manager/Project Geologist or their designee.

• The Contractor shall take all reasonable precautions to prevent fuel, lubricant, and/or hydraulic fluid leaks from all equipment on site and to prevent those materials from entering any streams or watercourses. Each drill shall be equipped with a spill clean-up kit. The contractor shall be prepared to immediately clean up spills or leaks of up to 10 gallons and to contain larger spills. If a spill occurs, the ODOT Hazardous Materials Unit shall immediately be notified. The ODOT Hazardous Materials Unit will provide guidance and oversight of the clean-up operation. The Contractor shall be responsible for all clean-up and associated costs.

• The Contractor shall contain or control any drill fluids or cuttings that have the potential to enter any stream or wetland. This may entail the use of fluid recirculation, bio-bags, swale filtration, silt fencing, or other approved sediment control devices/methods. Drill fluids and cuttings shall not directly enter any aquatic resource. No increase in ambient turbidity shall be allowed. If an increase in turbidity is noted, drilling operations shall be suspended until the source of the turbidity is determined and appropriate corrective actions are taken.

• No equipment maintenance or refueling operations shall take place within 150 feet of any stream or wetland.

Further details are presented in Attachment B.

Hazardous Materials: The Contractor shall notify the Project Manager/Project Geologist or their designee of any hazardous materials to be used on the job and will have Safety Data Sheets (SDS) for those materials, available on the job.

Personnel Requirements: The Contractor shall furnish one drill crew consisting of at least one journey-level drill operator who is licensed by the Oregon Water Resources Department (OWRD) as a Monitoring Well Constructor, and at least one experienced drill helper for each drill rig. The drill operators shall have a minimum of five (5) years of experience as lead driller, as appropriate.

All members of the drill crew must meet the OSHA 40-hour training (HAZWOPER) and other requirements of 29 CFR 1510.120. In addition, all members of the crew must be eRailSafe certified for the work within

Revision: 02/20/2024 Page 5 of 9 the UPRR Railroad right of way. The Contractor shall submit proof of all required licenses and certifications 5 business days prior to the start of work.

The Project Manager or designee shall have the authority to require the replacement of any Contractor's personnel not exhibiting adequate capability or reasonable safety and responsibility in their job performance.

Such replacements shall be made within 48 hours after the Project Manager/Project Geologist provides notification to the Contractor.

Anticipated Surface & Subsurface Conditions:

The attached Site Plan shows the proposed boring locations and general site surface conditions. The Wetland borings are accessible from the east end as discussed in “Access and Staging” above. A stream feeds the wetland from the south, resulting in a body of standing water that is typically 1 foot or less in depth. The Slope borings are located on slopes with gradients of 1.5H:1V, accessible from either the top or bottom of the slopes. The slopes are vegetated with ground cover, understory shrubs, and trees up to approximately 2 feet in diameter. Site surface conditions are shown in Photographs 1 through 3 below.

Based on review of geologic mapping and previous geotechnical explorations in the area, R1 Geo has developed the following understanding of anticipated subsurface conditions. Note the unit thickness described below are variable, and some units may be absent.

The wetland area is likely underlain by fill materials placed during railroad and/or highway construction and anticipated to consist of a variable mix of silt, sand, gravel, cobbles, boulders, and potentially concrete and asphalt construction debris. The fill likely extends to approximately 5 to 10 feet below ground surface (bgs). Beneath the fill, we anticipate roughly 20 to 25 feet of alluvium, consisting of fine-grained materials (clay, silt and sand) with a layer of coarser-grained materials (sand and gravel) at its base. The alluvium is likely underlain by outwash deposits, a mix of silt, sand, gravel, cobbles, and some boulders that exhibit varying degrees of cementation and form the “bedrock” for the site.

The eastern slope is comprised of embankment fill materials, consisting of a variable mix of silt, sand, gravel, cobbles, boulders, and potentially concrete and asphalt construction debris. The fill is likely underlain by outwash gravels described above, though some fine-grained alluvium may be encountered beneath the fill.

The western slope is likely comprised of embankment fill and possibly colluvium and alluvium over outwash deposits. Similar conditions are anticipated on the railroad access road at the toe of the western slope, with railroad embankment fill over colluvium/alluvium over outwash deposits.

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Photograph 1: Looking SW at west abutment. Red oval indicates general location of proposed borings TB21683-03 and -04. The railroad access road is located between the farthest set of tracks and the toe of the slope.

Photograph 2: Looking SE at east abutment. Red oval indicates general location of proposed borings TB21683-14 and -15.

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Photograph 3: Looking SW across wetland. Red oval in foreground indicates general location of proposed boring TB21683-08. Red oval in background indicates general location of proposed borings TB21683-05 and -06.

Performance Requirements

Testing and Sampling: The Contractor shall conduct standard penetration test (SPT) sampling in accordance with standard methods specified by the most recent version of American Society for Testing and Materials (ASTM), Designation D 1586. The contractor shall obtain undisturbed soil samples using the method specified by the most recent version of ASTM designation D 1587 "Thin-Walled Tube sampling of Soils" when conditions allow. If satisfactory samples cannot be obtained using standard “Shelby” tube equipment and methods, the contractor shall provide a piston-type or similar sampler in general accordance with ASTM D4823 at no additional cost.

SPT, undisturbed, and rock core samples shall be delivered in satisfactory fashion to the primary / secondary contact. The Contractor shall provide tubes and end caps for undisturbed samples and core boxes for core samples.

General: At the completion of each work shift, the site will be left clean and free of waste generated as a result of drilling operations by removal of items such as, construction debris, trash, drill cuttings and fluids, and chemical spills. The Contractor may not wash off drilling equipment on-site unless equipment wash liquid is contained. Open boreholes, if any, will be covered securely.

Site Restoration: Upon completion of drilling operations, the contractor shall re-contour any excavations or access roads to match original conditions. The contractor shall provide erosion prevention and stabilization measures, to include compost and/or straw mulch and approved seed mix (Permanent (Native) Seeding, Hood River and east of Hood River, Mix. No. 2, details to be provided), as directed by ODOT. Erosion and sediment control shall be considered incidental.

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Drilling & Sampling: Provide exploration drilling and sampling as described below in Table 1. Borings may employ hollow stem auger, mud rotary, and rock coring methods, as directed by ODOT. Drilling site sequence will be as directed by the primary/secondary contact. All holes shall be constructed and abandoned in accordance with OWRD rules and regulations.

Standard penetration tests (SPTs) will be performed every 2.5 feet within the first 20 feet of depth and every 5’ thereafter, or as directed by the Project Manager/Project Geologist. Undisturbed samples will be collected as directed by the Project Manager/Project Geologist. If suitable materials are encountered, up to 20 feet of rock coring will be attempted within the cemented outwash deposits in select borings.

Depending upon the subsurface conditions, the depths and sampling intervals may be modified.

Table 1. Borehole and Sampling Summary

Borehole ID Location / Access Assumed

Total Depth

(ft.)

TB21683-03 Slope, west end 30

TB21683-04 Slope, west end 30

TB21683-05 Wetland, west end 100

TB21683-06 Wetland, west end 100

TB21683-08 Wetland, east end 100

TB21683-14 Slope, east end 100

TB21683-15 Slope, east end 100

TB21683-24 Grass area adjacent to highway, west end 100

TB21683-25 Railroad access road, west end 100

TB21683-26 Railroad access road, west end 100

NOTES

• Assume two Shelby tubes per boring in eight borings (sixteen total)

• Assume up to 20 feet of HQ rock coring (40 feet total. Coring not anticipated at

TB21683-03 and -04)

ODOT WILL PROVIDE THE FOLLOWING:

• Project Manager/Project Geologist or designee

• Sample jars

• Initial utility locate (One-Call) ticket numbers

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BID ITEM DESCRIPTIONS

Administration – This item will be considered payment in full for all materials, equipment, labor, mileage and incidentals related to the administration of this contract. This includes but is not limited to record keeping, billing/accounting, production and submittal of the work plan, Pollution Control Plan, written procedures for maintaining a safe working environment, and necessary permitting. Payment shall be lump sum.

Mobilization/Demobilization/Access - This item will be considered payment in full for all materials, equipment, labor, mileage and incidentals necessary to transport and stage all equipment and supplies to and from the Project site. This item includes payment for any and all special equipment necessary to accomplish the job (e.g. excavators, crane mats, platforms, vehicles, winches, etc.), as well as materials, equipment, labor, and incidentals necessary for site restoration. Payment shall be lump sum.

Temporary Protection and Direction of Traffic (TP-DT) - This item will be considered payment in full for providing temporary protection or direction of traffic signs, equipment, and personnel necessary for shoulder and lane closure during field operations. Payment shall be per day.

Hollow Stem Auger and Mud Rotary Drilling - This item will be considered payment in full for all materials, equipment, labor, and incidentals necessary to prepare the site and complete the exploration drill holes to the depths required, obtain samples and perform tests at the required intervals, abandon these holes in accordance with Oregon Water Resources rules and regulations, and site cleanup, including containment and disposal of drill fluids and cuttings. Drilling measurements and payment will be based on the nearest lineal foot.

Rock Core Drilling - This item will be considered payment in full for all materials, equipment, labor, and incidentals necessary to obtain the HQ rock core samples from the depths required the depths required and abandon these holes in accordance with Oregon Water Resources rules and regulations. Rock coring measurements and payment will be based on the nearest lineal foot.

3-inch Undisturbed Samples (Shelby Tubes) - This item will be considered payment in full for all labor, materials, equipment and incidentals necessary to perform these tests. Payment shall be per test.

OWRD Geotechnical Hole Reports - This item will be considered payment in full to prepare and submit Oregon Water Resources Department (OWRD) Geotechnical Hole Reports. The Contractor will provide a copy of each report to the Project Manager/ Project Geologist upon submission to OWRD. Payment shall be per report.

Drums – The use of drums for segregation of contaminated soil may be required on this project. The Project Manager/Project Geologist will authorize the use of drums only if contaminated soil is encountered.

This item will be considered payment in full to supply DOT type 17-H steel drums, lids, and bolt secured rings. Payment shall be per drum.

Standby - Standby is not anticipated on this project and is included here only as a contingency. Standby time shall be paid at an hourly rate to the nearest quarter of an hour, with a maximum of four (4) hours in any 24-hour period. Standby shall include all time during which the Contractor is unable to perform drilling work as a result of a directive from the Project Manager/Project Geologist. The Project Manager/Project Geologist will order standby at the offered rate if conditions warrant. Standby will include delays of work due to adverse weather conditions only if directed by the Project Manager/Project Geologist. Standby will not be paid for delays of work resulting from equipment failure, lack of required equipment, or safety issues that are not weather-related. Standby will not be paid unless authorized, in advance, by the Project Manager/Project Geologist.

N

K21683 – I84 WB over UPRR Bridge Replacement

Project Location

TB21683-06 TB21683-15

TB21683-08

N

K21683 – I84 WB over UPRR Bridge Replacement – Phase 3

TB21683-05

Proposed boring

Permitted wetland access route

TB21683-14

TB21683-04

TB21683-03

TB21683-24

TB21683-25

TB21683-26

Attachment A - Joint Permit Application (JPA)

1 November 2021

Joint Permit Application This is a joint application, and must be sent to all agencies (Corps, DSL, and DEQ). Alternative forms of permit applications may be acceptable; contact the Corps and DSL for more information.

Date Stamp

U.S. Army Corps of Engineers Portland District

Oregon Department of State Lands

Oregon Department of Environmental Quality Action ID Number Number

(1) TYPE OF PERMIT(S) IF KNOWN (check all that apply)

Corps: Individual x Nationwide No.: _6 _ Regional General Permit _ _ Other (specify):

DSL: Individual x GP Trans GP Min Wet GP Maint Dredge GP Ocean Energy No Permit Waiver

(2) APPLICANT AND LANDOWNER CONTACT INFORMATION

Applicant Property Owner (if different) Authorized Agent (if applicable)

Consultant Contractor

Name (Required) Business Name Mailing Address 1 Mailing Address 2 City, State, Zip

Candice Rose ODOT Region 1 123 NW Flanders St.

Portland, OR 97209

Paul Langdale ODOT Region 1 123 NW Flanders St Portland, OR 97209

Business Phone Cell Phone Fax Email

503-731-3103 661-644-9753

Candice.rose@odot.oregon.go v

503.731.8240

Paul.LANGDALE@odot.state.or.us

(3) PROJECT INFORMATION

A. Provide the project location.

Project Name

I-84 WB UPRR Bridge Latitude & Longitude* 45.7130, -121.5226

Project Address / Location I-84 westbound bridge between MP 63.35 and MP 63.47 over the Union Pacific Railroad in Hood River

City (nearest) City of Hood River

County Hood River County

Township Range Section Quarter / Quarter Tax Lot

3N 10E 25 03N10E25CB/3N10E25CB00402

3N10E25CB00100

3N10E25CB00400

Brief Directions to the Site: From I-84 East, take Exit 63 “Hood River and City Center”, tur left on N Second Street then Left on Riverside Drive 0.4 miles to the railroad tracks along the bridge.

B. What types of waterbodies or wetlands are present in your project area? (Check all that apply.)

X River / Stream Non-Tidal Wetland Lake / Reservoir / Pond

Estuary or Tidal Wetland Other Pacific Ocean

Waterbody or Wetland Name** Stream A

River Mile 0.02

6th Field HUC Name Lower Hood River

6th Field HUC (12 digits) 170701050803

* In decimal format (e.g., 44.9399, -123.0283)

3 November 2021

C. Indicate the project category. (Check all that apply.)

Commercial Development Industrial Development Residential Development Institutional Development Agricultural Recreational

Transportation Restoration Bridge

Dredging Utility lines Survey or Sampling

In- or Over-Water Structure Maintenance Other:

(4) PROJECT DESCRIPTION

A. Summarize the overall project including work in areas both in and outside of waters or wetlands.

This project will complete a bridge replacement feasibility study to evaluate various alignments and construction methods for a future bridge replacement. In addition, evaluate the short- and mid-term solutions for ongoing bridge maintenance and potential repair/upgrade options.

B. Describe work within waters and wetlands.

As part of the feasibility study the underlying geology will need to be evaluated using up to 5 geotechnical borings estimated to be a maximum 150 feet in depth. Each boring will be less than 6 inches in diameter. There are two definite borings in the stream and up to three that are close to the stream and may move into the stream as design plans change.

Approximate locations are shown in Figure 4 Attachment B.

C. Construction Methods. Describe how the removal and/or fill activities will be accomplished to minimize impacts to waters and wetlands.

ODOT plans on up to five mud rotary boreholes drills and cone penetrometer tests (CPT) within waters of the State and US.

Before the mud rotary borehole is started, a steel circulation casing is pushed and/or driven to a depth of approximately 10 to 15 feet below the mud line, sealing off the circulating drill fluids from the pond. Once the casing is sealed below the mud line, drilling will be initiated using a mud rotary drill. All drill cuttings and drilling fluids will be contained within the borehole, the circulation casing, and the re-circulation (or “mud”) tub. Drilling will occur in casings separating the drill slurry from the surface water. Drill slurry will be recycled on site and maintained in an enclosed system with a properly sized tank. After drilling, sampling, and in situ testing of the boreholes are completed, the holes will be abandoned by filling them with a high solids bentonite-cement grout in accordance with Oregon Water Resource Department regulations.

The cone penetration or cone penetrometer test (CPT) is a method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy. CPT evaluates subsurface conditions and geotechnical soil properties. Cone penetrometer (penetration) tests are a quasi-static penetration test, meaning that the casing is pushed at a slow rate rather than driven with a hammer or rotary drilling. In the CPT, a cone on the end of a series of rods is pushed into the ground at a constant rate, and records continuous or intermittent measurements that are made of resistance to penetration of the cone and also records the resistance of the surface sleeve on the cone. There are many types of data that can be collected using the CPT cone. The Cone does not use slurry and does not remove soils or sediment.

To access the boring locations including two just west of the stream, crane mats will be laid down in the shallow ponded portions of the stream for the drill rigs to move across the soggy soils. The mats will be stacked up to three deep in case of high water. The railroad tracks block access from the north and west side of the project site, therefore the crane mats will cross the stream from the ODOT access road on the east side of the stream.

All drilling contractors and their subcontractors will abide by industry Best Management Practices. The drill rig and other powered equipment, such as winches and pumps, will be diapered or contained within sorbent materials to avoid petroleum products from dripping or leaking on the crane mats and washing off into the pond.

Turbidity will be monitored upstream and downstream of the site using a turbidity meter every two hours to assure no plume is created in in the water. It would be measured right before the culvert and 100ft upstream.

Because the pond is assumed to be used by covered fish species exclusionary measures will be needed for the project. Fish nets will be used to block the area and a fish salvage will be performed before the crane mats are deployed into the pond.

ODOT will locate areas for parking, refueling, and servicing equipment at least 150 feet from wetlands and streams.

4 November 2021

(4) PROJECT DESCRIPTION (continued) D. Describe source of fill material and disposal locations if known.

ODOT will re-use the fill obtained onsite or dispose of in an appropriate upland location.

E. Construction timeline.

What is the estimated project start date? July 15, 2023 What is the estimated project completion date? September 30, 2024_ Is any of the work underway or already complete? Yes No If yes, please describe.

F. Removal Volumes and Dimensions (if more than 7 impact sites, include a summary table as an attachment)

Wetland / Waterbody Name *

Removal Dimensions Time Removal is to remain**

Material*** Length

(ft.)

Width (ft.)

Depth (ft.)

Area (sq.ft.)

Volume (c.y.)

Stream A 0.5 0.5 150 1.25 12.5 Permanent Grout Stream A 240 20 3 4,800 533.33 Temporary Wood Crane Mats

G. Total Removal Volumes and Dimensions Total Removal to Wetlands and Other Waters Length (ft.) Area (sq. ft) Volume (c.y.)

Total Removal to Wetlands Total Removal Below Ordinary High Water 240.5 4801.25 545.83 Total Removal Below Highest Measured Tide Total Removal Below High Tide Line Total Removal Below Mean High Water Tidal Elevation

H. Fill Volumes and Dimensions (if more than 7 impact sites, include a summary table as an attachment)

Wetland / Waterbody Name*

Fill Dimensions Time Fill is to remain**

Material*** Length

(ft.)

Width (ft.)

Depth (ft.)

Area

(sq. ft.)

Volume (c.y.)

Stream A 0.5 0.5 150 1.25 12.5 Permanent Grout Stream A 240 20 3 4,800 533.33 Temporary Wood Crane Mats

5 November 2021

(4) PROJECT DESCRIPTION (CONTINUED)

I. Total Fill Volumes and Dimensions Total Fill to Wetlands and Other Waters Length (ft.) Area (sq. ft.) Volume (c.y.)

Total Fill to Wetlands

Total Fill Below Ordinary High Water 240.5 4801.25 545.83

Total Fill Below Highest Measured Tide

Total Fill Below High Tide Line

Total Fill Below Mean High Water Tidal Elevation

*If there is no o f f ic ial name for the wet land or waterbody, c reate a unique name (such as “Wet land 1” or “Tributary A”).

**Ind icate whether the p roposed area of removal or f i l l is permanent or, if you are p ropos ing temporary impacts , spec if y the days, months or years the f i l l or removal is to remain.

*** Examp le: so il , g ravel, wood , concrete, p i l ings , rock etc .

(5) PROJECT PURPOSE AND NEED

Provide a statement of the purpose and need for the overall project.

Study to determine the alignment and construction method for a future bridge replacement of the existing bridge to improve seismic stability.

(6) DESCRIPTION OF RESOURCES IN PROJECT AREA

A. Describe the existing physical, chemical, and biological characteristics of each wetland or waterbody.

Reference the wetland and waters delineation report if one is available. Include the list of items provided in the instructions.

The project site includes a small stream that flows north through a 3-foot culvert under the railroad tracks to the south of the project site. The water source comes from the residential and industrial area south of the project site. The stream meanders through the project area and under the bridge. At the bridge the stream widens as the channel braids. A small shallow pond forms north of the bridge where beaver have partially blocked two parallel two-foot diameter culverts extending north from the project area that connect the stream to the Columbia River under some railroad tracks. The parallel culverts are level and large enough to allow fish passage, so the pond is assumed habitat for listed fish species which are found it he Columbia River.

The project is surrounded by Union Pacific railroad tracks.

The project site is relatively shallow with steep sided banks. The riparian areas have a mix of hardy natives and invasive plants including Himalayan Blackberry, Red Osier Dogwood, Kentucky Bluegrass, and Big Leaf Maple. Reed Canary Grass is present throughout the project area. The surrounding area is light industrial (north/west/south) and a water treatment facility to the east.

There are several fell (those we can see the end of look to have been cut by humans) trees that direct the water along the south side of the project area.

Stream A provides the following functions based on BJP:

1. Hydrologic Functions: Include movement of the water through the watershed and the variable transfer of water along the stream channel. The urban watershed provides unfavorable conditions for good hydrologic functions, limiting watershed and floodplain connection. The stream provides the transfer of water to the Columbia River and flood prevention.

2. Geomorphic Functions: Encompass hydraulic and sediment transport processes that generate variable forces within the stream and the variable input, transfer and storage of sediment within the channel and adjacent environs that are generally responsible for stream form at multiple scales. The stream allows sediment transport and storage.

3. Biological Functions: Include processes that result in maintenance and change in biodiversity, trophic structure, and habitat within the stream channel. Reed Canary Grass and Himalayan blackberry prevents establishment of a diverse native plant community. There are several fell trees along or in the stream.

4. Water Quality Functions: Encompass processes that govern the cycling, transfer, and regulation of energy, nutrients, chemicals and temperature in surface and groundwater, and between the stream channel and associated riparian system. The riparian vegetation does collect and retain some sediment. The riparian habitat provides little shade to keep water temperatures low.

B. Describe the existing navigation, fishing and recreational use of the waterbody or wetland.

The adjacent Columbia River is heavily used for recreation including boating (often canoes and kayaks), bird watching, and fishing.

Stream A is not used for these purposes.

6 November 2021

(7) PROJECT SPECIFIC CRITERIA AND ALTERNATIVES ANALYSIS

Describe project-specific criteria necessary to achieve the project purpose. Describe alternative sites and project designs that were considered to avoid or minimize impacts to the waterbody or wetland.

No Build Alternative – The underlying soils need to be evaluated for their ability to support a bridge. If the bridge is not upgraded or rebuilt it could be closed.

Alternative Sites – Alternative sites for this road and bridge are limited by the industrial sites to the south and the railroad tracks surrounding the project area.

Minimization – The proposed project geotech work is the minimum needed to design a stable bridge that keeps the travelling public safe

(8) ADDITIONAL INFORMATION

Are there state or federally listed species on the project site? Yes No Unknown

Is the project site within designated or proposed critical habitat? Yes No Unknown

Is the project site within a national Wild and Scenic River ? Yes No Unknown

Is the project site within a State Scenic Waterway? Yes No Unknown

Is the project site within the 100-year floodplain? Yes No Unknown

If yes to any above, explain in Block 6 and describe measures to minimize adverse effects to those resources in Block 7.

Is the project site within the Territorial Sea Plan (TSP) Area? Yes No

If yes, attach TSP review as a separate document for DSL.

Unknown

Is the project site within a designated Marine Reserve? Yes No

If yes, certain additional DSL restrictions will apply.

Unknown

Will the overall project involve ground disturbance of one acre or Yes No more?

If yes, you may need a 1200-C permit from the Oregon Department of Environmental Quality (DEQ).

Unknown

Is the fill or dredged material a carrier of contaminants from on-site or Yes No off-site spills?

Has the fill or dredged material been physically and/or chemically Yes No tested?

If yes, explain in Block 6 and provide references to any physical/chemical testing report(s).

Unknown

Unknown

Has a cultural resource (archaeological and/or built environment) survey been performed on the project area?

Yes No

Unknown

Do you have any additional archaeological or built environment documentation, or correspondence from tribes or the State Historic Yes No Unknown Preservation Office?

If yes, provide a copy of the survey and/or documentation of correspondence with this application to the Corps only. Do not describe any resources in this document. Do not provide the survey or documentation to DSL.

* Not required by the Corps for a complete application, but is necessary for individual permits before a permit decision can be rendered.

7 November 2021

Is the project part of a DEQ Cleanup Site? No☐ Yes☐ Permit number _ DEQ contact._

Will the project result in new impervious surfaces or the redevelopment of existing surfaces? Yes ☐ No ☐ If yes, the applicant must submit a post-construction stormwater management plan as part of this application to DEQ’s 401 WQC program for review and approval, see https://www.oregon.gov/deq/FilterDocs/401wqcertPostCon.pdf Identify any other federal agency that is funding, authorizing or implementing the project.

Agency Name

FHWA

Contact Name Shaneka Owens

Phone Number (530)316-2553

Most Recent Date of Contact 2/28/2023

List other certificates or approvals/denials required or received from other federal, state or local agencies for work described in this application.

Agency Certificate / approval / denial description Date Applied

Other DSL and/or Corps Actions Associated with this Site (Check all that apply.)

Work proposed on or over lands owned by or leased from the Corps (may require authorization pursuant to 33 USC 408). These could include the federal navigation channel, structures, levees, real estate, dikes, dams, and other Corps projects.

State owned waterway DSL Waterway Lease #:

Other Corps or DSL Permits Corps # DSL # Violation for Unauthorized Activity Corps # DSL #

Wetland and Waters Delineation Corps # DSL # Submit the entire delineation report to the Corps; submit only the concurrence letter (if complete) and approved maps to DSL. If not previously submitted to DSL, send under a separate cover letter

(9) IMPACTS, RESTORATION/REHABILITATION, AND COMPENSATORY MITIGATION

A. Describe unavoidable environmental impacts that are likely to result from the proposed project. Include permanent, temporary, direct, and indirect impacts.

There will be some damage to approximately 4801 sq.ft. of the stream from the boring holes and temporary crane mats. The area that will be covered by the wood crane mats is predominately covered by Reed Canary Grass (RCG) with some Himalayan Blackberry. The mats will be laid down for up to three weeks, which will flatten the existing vegetation. The RCG and blackberry should be recovered by the following spring without any assistance. There are also some scattered shrubs (primarily Himalayan Blackberry but also young Fir trees and Red Osier Dogwood) ringing the site, a few may potentially need to be cut down to their roots for this project. They would resprout the following spring and should be back to their current full size in about 3 years without assistance.

There will also need to be a fish salvage to remove fish from the project area before the crane mats are put into the water. The crane mats and fish exclusion will be removed when the work is complete so the impacts will be temporary.

B. For temporary removal or fill or disturbance of vegetation in waterbodies, wetlands or riparian (i.e., streamside) areas, discuss how the site will be restored after construction to include the timeline for restoration.

The project area will restore naturally on its own. The Reed Canary Grass and Himalayan Blackberry will be recovered by the following springs and any shrubs will be back to full size in around 3 years.

http://www.oregon.gov/deq/FilterDocs/401wqcertPostCon.pdf

8 November 2021

Compensatory Mitigation C. Proposed mitigation approach. Check all that apply:

Permittee responsible Permittee responsible Mitigation Bank or Payment In-Lieu Onsite Mitigation Offsite Mitigation In-Lieu Fee Program (Not approved for use with Corps permits)

C. Provide a brief description of proposed mitigation approach and the rationale for choosing that approach. If you believe mitigation should not be required, explain why.

The impact area is small and will restore on its own, so no mitigation is proposed. The impacted area is predominantly covered in Reed Canary Grass and the geo-tech work will only take a couple weeks to complete.

Mitigation Bank / In-Lieu Fee Information:

Name of mitigation bank or in-lieu fee project:

Type and amount of credits to be purchased:

If you are proposing permittee-responsible mitigation, have you prepared a compensatory mitigation plan?

Yes. Submit the plan with this application and complete the remainder of this section.

No. A mitigation plan will need to be submitted (for DSL, this plan is required for a complete application).

Mitigation Location Information (Fill out only if permittee-responsible mitigation is proposed) Mitigation Site Name/Legal Description

Mitigation Site Address Tax Lot #

County City Latitude & Longitude (in DD.DDDD format)

Township Range Section Quarter/Quarter

9 November 2021

(10) ADJACENT PROPERTY OWNERS FOR PROJECT AND MITIGATION SITE

Pre-printed mailing labels of adjacent property owners attached separately (if more than 30).

Project Site Adjacent Property Owners

Mitigation Site Adjacent Property Owners

Contact Name Address 1 Address 2 City, ST ZIP Code

Port of Hood River 1000 E Port Marina Dr.

Hood River OR 97031 Tax Lot: 03N10E2500402

Not Applicable

Contact Name Address 1 Address 2 City, ST ZIP Code

City of Hood River 211 2nd St.

Hood River, OR 97031 Tax Lot: 03N10E2500400

Contact Name Address 1 Address 2 City, ST ZIP Code

Blackbird LLC 1016 Industrial

Tax Lot: 3N10E25CB00201

Contact Name Address 1 Address 2 City, ST ZIP Code

Laptad, John C & Ruth F Truste 1828 Montello St

Tax Lot: 3N10E25CB00200

10 November 2021 has has not

I have reviewed the project described in this application and have determined that:

This project is not regulated by the comprehensive plan and land use regulations This project is consistent with the comprehensive plan and land use regulations This project is consistent with the comprehensive plan and land use regulations with the following:

Conditional Use Approval Development Permit Other Permit (explain in comment section below)

This project is not currently consistent with the comprehensive plan and land use regulations. To be consistent requires:

Plan Amendment Zone Change Other Approval or Review (explain in comment section below)

An application or variance request been filed for the approvals required above.

Local planning official name (print) Title City / County

Signature Date

Comments:

(12) COASTAL ZONE CERTIFICATION

If the proposed activity described in your permit application is within the Oregon Coastal Zone, the following certification is required before your application can be processed. The signed statement will be forwarded to the Oregon Department of Land Conservation and Development (DLCD) for its concurrence or objection. For additional information on the Oregon Coastal Zone Management Program and consistency reviews of federally permitted projects, contact DLCD at 635 Capitol Street NE, Suite 150, Salem, Oregon 97301 or call 503-373-0050 or click here.

CERTIFICATION STATEMENT

I certify that, to the best of my knowledge and belief, the proposed activity described in this application complies with the approved Oregon Coastal Zone Management Program and will be completed in a manner consistent with the program.

Print /Type Applicant Name Title

Applicant Signature Date

(11) CITY/COUNTY PLANNING DEPARTMENT LAND USE AFFIDAVIT

(TO BE COMPLETED BY LOCAL PLANNING OFFICIAL)

11 November 2021

(13) SIGNATURES

Application is hereby made for the activities described herein. I certify that I am familiar with the information contained in the application, and, to the best of my knowledge and belief, this information is true, complete and accurate. I further certify that I possess the authority to undertake the proposed activities. By signing this application I consent to allow Corps or DSL staff to enter into the above-described property to inspect the project location and to determine compliance with an authorization, if granted. I hereby authorize the person identified in the authorized agent block below to act in my behalf as my agent in the processing of this application and to furnish supplemental information in support of this permit application. I understand that the granting of other permits by local, county, state or federal agencies does not release me from the requirement of obtaining the permits requested before commencing the project.

I understand that payment of the required state processing fee does not guarantee permit issuance.

To be considered complete, the fee must accompany the application to DSL. The fee is not required for submittal of an application to the Corps.

Fee Amount Enclosed $ Applicant Signature (required) must match the name in Block 2 Print Name Candice Rose

Title Environmental Permit Specialist

Signature Date 5/1/2023

Authorized Agent Signature Print Name Paul Langdale

Title Region Environmental Coordinator

Signature

Date 5/1/2023

Landowner Signature(s)* Landowner of the Project Site (if different from applicant) Print Name Title

Signature Date

Landowner of the Mitigation Site (if different from applicant) Print Name…