Fall Creek Dam Debris and Vegetation Management Contract Attachments_v1.pdf

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Fall Creek Dam Debris and Vegetation Removal
Solicitation number
W9127N25Q0032
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This Performance Work Statement (PWS) details debris and vegetation management services for Fall Creek Dam located in Fall Creek, Oregon. The project involves comprehensive vegetation removal and management across four distinct zones around the dam, with specific requirements for clearing and maintaining vegetation-free areas to ensure dam safety, flood risk reduction, and operational integrity. Key objectives include:

The vegetation management plan requires removing woody vegetation, brush, and grass within designated zones, maintaining a minimum vegetation-free corridor along the dam's embankment, spillways, and critical infrastructure. Contractors must use multiple removal techniques including mechanical cutting, herbicide application, biological control (goats), and prevention strategies. The work is part of the Willamette Valley Project's broader dam safety program, with an integrated vegetation management approach that emphasizes ecological considerations, safety standards, and long-term maintenance. The project will be executed in compliance with environmental permits, endangered species protections, and US Army Corps of Engineers vegetation control guidelines.

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Fall Creek Dam Debris and Vegetation Management

Fall Creek, OR

Performance Work Statement Attachments

8 mi N

N Image Landsat / Copernicus

Image Landsat / Copernicus

Image Landsat / Copernicus

Attachment A

A-1

3000 ft

N

N

Image © 2025 Maxar Technologies

Image © 2025 Maxar Technologies

Image © 2025 Maxar Technologies

Attachment A

A-2

Work Area Fall Creek Dam Debris and Vegetation Management

Legend

Fall Creek Dam

Potential Staging Area (Existing Pavement Only)

RO Intake

Zone #1

Zone #2

Zone #3

Zone #4

4000 ft N

N

Note:

1. Potential Staging Areas require the Contractor to coordinate with the State of Oregon for use

2. See sheet B-5 for photos of RO Intake

Access Points

Legend

Boat Ramp

Fall Creek Dam

Gate

4000 ft N

N Image © 2025 Maxar Technologies

Image © 2025 Maxar Technologies

Image © 2025 Maxar Technologies

Attachment B

B-2

Access Points

Legend

Boat Ramp

Fall Creek Dam

Gate

2 mi N

N Image © 2025 Maxar Technologies

Image © 2025 Maxar Technologies

Image © 2025 Maxar Technologies

B-3

0 250 500 Meters

0 1,000 2,000 Feet

US Army Corps of Engineers Portland District

¢ Exclusion AreaFall Creek Dam Debris and Vegetation Management Created 3/25/2025 No driving outside of rocked or paved existing roads, staging, piling, earthwork, or dragging debris within exclusion area. 1:10,000

Exclusion Area Map

B-4

B-5

RO Intake and Fish Horn Photos.

The Contractor is responsible to ensure the dam and its related structures are not damaged during any work.

South facing view of RO Intake East facing view of RO Intake & Fish Horn

Overhead view of fish horns and RO intake

Fish horns and RO intake

Fish horns and RO intake Fish horns and RO intake

SPILL EMERGENCY - INITIAL REPORT FORM

1. Reporting Name: _____________________ Responsible Party: ____________________

2. Location of Spill (include County, Nearest Town, County, Township, Range, Rivermile)

3. Spill Description (time & date spilled, material involved, quantity)

4. Environmental Impacts: Air? Surface Water? Groundwater? Fish? Wildlife?

5. Reporting Tracking No. Date/Time POC

National Response Center: ______________________________________________

Oregon Emergency Response System: ______________________________________________

Washington Emergency Management: ______________________________________________

6. Incident Action Plan: Strategic Goals (what to do) and Tactical Objectives (who & how)

Strategic Goals Tactical Objectives

a. Perform Hazard Assessment ____________________________________________

b. Establish Site Security ____________________________________________

c. Establish Incident Command ____________________________________________

d. Evacuate Injured or Exposed ____________________________________________

e. Contain the Spill ____________________________________________

f. Control the Spill ____________________________________________

g. Initiate Cleanup ____________________________________________

ATTACHMENT C SPILL RESPONSE FORM

Attachment C - 1

Project (OD-V, etc.) or

Outgrant Pesticide Trade Name Active Ingredient(s) EPA Class EPA Reg. # Target Species

Treatment Location

Description Outgrant? (Y/N) Estimated Acres

Estimated Quntity (oz, gal, or lb)

Actual Acres or Linear

Miles/Feet Treated

Actual Quantity Used

(oz, gal, lb) - ANNUAL

SUM TOTAL

Example Aquaneat Glyphosate 9 228-365 Water Primrose

BONN WA

Operations PMA No

Spot treatment over

2.5 acres

0.5 Gal (64 ozs)

Spot treatment over

2.5 acres

0.25 gal (32 ozs)

NWP Pesticide Use Annual Reporting *Note 1: Separate any aquatic application from the terrest below OHWM, create 2 entries. One for the 100 acres, wi

Anticipated Use, Section 1: General Info (Due 15 DEC before application) Anticipated Use, Section 2: Proposed Use (Due 15 DEC before application) Section 3: Actual Use (Due 15 JAN after application)

Attachment D

D-1

Actual Location of

Application Actual Target Species

Date and Time of

Application

Application Method

(Broadcast or Spot

Spray)

State Applied (WA or

OR)

If WA, applied directly to Water or at/below

OHWM? (Y/N) If answer is YES, complete Section 5

If OR, applied directly to water or within 3 feet of US water? (Y/N)

If answer is yes, complete section 5

Name License # Employer Street Address Phone Number

8/11/2020, 1300 Poison Hemlock 8/11/2020, 1300 Spot Spray WA Yes N/A First and Last WA- xxxxx or OR-xxxxx Agency/ Company Street, City, State with Area code

Section 4: Applicator's Info (Due 15 JAN after application) any aquatic application from the terrestial application of the same product. E.g. If you treated 100 acres with Aquaneat, but only treated 20 linear feet reate 2 entries. One for the 100 acres, with column R/S marked NO (terrestrial), and one for the 20 linear feet with column R/S marked YES (Aquatic).

**Note 2: If applications occurred in both states, enter a seperate line for each state

D-2

Surveillance: method, date, findings

Explanation for need of pest control Action Threshold met

Mgmt measures implemented prior to pesticide

Identification of waters pesticide was discharged to

Quantity used

(Application rate, dilutants, dilution)

Concentration (%) of active ingredient in formulation

The effective concentration of active ingredient required for control

Any unusual or unexpected effects identified to non-target organisms

Visual assessment conducted? Y/N-- If yes, during application or post application, and if no, explain why not

Assessment of environmental conditions relating to proper pesticide use

Visual, 8/1, presence of Water Primrose

State listed, objective to strategical manage the spread

Infestation that jeopardizes ecological objectives

Prevention Columbia River

0.25 gallon for Spot treatment, 0.75% solution with 2 quarts of nonionic surfactant

0.75% (Should not exceed percentage in next column)

0.75% No adverse effects detected Yes, post application

No adverse effects detected

Section 5: Additional Record Keeping Requirement for in/near water applications (Only permissible with direct coordination with Project Natural Resource Manager)

D-3

ATTACHMENT E POST APPLICATION REPORT

E-1

Post Application Report for Contract

1. Herbicide Application Location –

2. Date of Application –

3. Weather at Time of Application –

4. Supplier of Pesticides –

5. Pesticide Name(s) -

6. Total Amount of Pesticide Concentrate -

7. Target Species –

8. Applicator Name and License No. –

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F-10

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F-11

For Information Use Only

F-12

Attachment G

G-1

Modification Record

Change No.

Section Approval

1 All Initial release post final peer review 10/26/09 Bengtson/Kline

G-2

Willamette Valley Project

Boat Restricted Zone Entry Procedure

1. Purpose:

1.1. The Boat Restricted Zone (BRZ) Entry Procedure has been established to ensure that persons whose work requires them to enter the restricted zones are fully aware of the hazards associated with the structures and operating conditions. And, that they are properly equipped to safely deal with the hazards associated with BRZ work.

2. Scope:

2.1. This BRZ procedure is applicable to all vessels entering a Boat Restricted Zone at the Willamette Valley Project(s). The BRZ zones are identified on Attachment A. Activities requiring BRZ access will be documented on the BRZ Entry Permit and submitted for approval, Attachment B.

3. Discussion:

3.1. The waters immediately around the structures and channels at the project(s) present fixed and dynamic hazards to vessels and their occupants while performing work.

3.2. Cables and wires may span the channels both up stream and down stream of the powerhouses and spillway structures. The cables and wires may be both above and below the water level. Changing pool elevations cause a varying clearance between the water and cables or wires. The wires and cables are difficult to see in daylight and impossible to see during the hours of darkness.

3.3. The structures have open, unprotected water inlets and outlets which are capable of ingesting, capsizing or swamping smaller vessels. These features have both remote and automatic operating capabilities.

3.4. Water velocities exceeding 8 Feet per Second (FPS) are present in continuously changing directions and considered dangerous.

3.5. Water velocities at the surface and below, are constantly altered by the normal operation of the turbines, regulating outlet and spillway gates.

(These alterations may be performed via automatic controls or remotely)

3.6. Protective relay actions can cause considerable sudden water elevation variations with resulting sudden increase in velocities. These sudden elevation changes are sufficient in magnitude and duration to capsize a vessel, or pitch them into structures or wires when in close proximity.

Personnel on board vessels are at great risk of being cast overboard during sudden elevation changes due to load rejection events.

3.7. Surface and submerged debris are a constant danger and are capable of

G-3 damaging or breaking vessel propulsion or steering mechanisms.

4. Entrant and Vessel Requirements:

4.1. All personnel must wear personal flotation devices while in the BRZ.

4.2. All vessels entering the BRZ will meet Coast Guard safety standards for day and night operations. Included are fire extinguishing capabilities, running and anchor lights, an audible warning device capable of being heard anywhere within the BRZ. Each vessel entering the BRZ will have either a current Coast Guard Certification or State inspection tag on the boat demonstrating the equipment meets current safety standards.

4.3. Primary and Safety boats will be equipped with two engines, each capable of propelling the boat and anticipated load upstream against a current of 8 FPS.

4.3.1. While acting in the capacity of a safety boat, occupants of the boat will have no other duties other than observing the primary boat inside the BRZ and will be positioned at a safe distance for complete observational capabilities.

4.4. All vessel or boat operators shall have a current vessel or boating license and shall be current on their boater safety training.

4.4.1 All operators of USACE boats/vessels less than 26‘(feet) will be licensed IAW

ER-385-1-91.

4.5. A marine band radio capable of communication with the project control room on channel 14 [or other previously identified channel or method] must be available to the boat operator. Failure to maintain communication with the control room when operating within the BRZ is cause for removal from the BRZ and future access denial.

4.6. A rescue line shall be available in a throw bag or other approved device. The rescue line length shall be of sufficient length to reach personnel that have gone overboard. A minimum length of 50’ is required. The line should be constructed of a buoyant material.

4.7. A spotlight that can be easily operated by the boat operator must be available.

5. Procedure:

5.1. The applicant must submit a written job and activity hazard analysis to their project representative; the document must be available for review by anyone who has a need.

5.2. No vessel may enter the BRZ without proper coordination with the Operations Project Manager, or their representative.

5.2.1. Any work or activity requiring access to a BRZ area must be coordinated with the respective project representative with a written request for access submitted to the Operations Superintendent at least two weeks in advance of the anticipated work date(s).

G-4

5.2.1.1. The project representative coordinating the activity will draft a BRZ Entry Permit for review and approval using the requirements of this procedure.

5.2.1.1.1 All BRZ Entry Permits will be sequentially numbered

Starting with the current calendar year. i.e. 2009-XXX.

5.2.1.2. The request must include a schedule and written work plan. The work plan must include a description of the work to be performed, the locations of the work and any known project operating requirements or restrictions necessary.

5.2.2. Requests that require project support must be made as far in advance as possible, but a minimum of 30 days prior to the anticipated need.

5.3 A pre-work safety meeting will be held at the project prior to the anticipated work dates. The safety meeting must be attended by the Work Leader or supervision of the applying work crew and all affected project work groups.

A representative of the WVP Safety Office will attend if possible.

5.4 Once approved the BRZ Entry Permit will be provided to the appropriate Control Room by the Operations Superintendent or representative.

5.5 Entrants must obtain and have on their vessel a copy of the approved BRZ Entry Permit prior to seeking permission from the appropriate Willamette Valley Control Room to enter.

5.6 Immediately prior to entering the BRZ, the entrants will contact the control room operator using approved communications and request permission to enter the BRZ.

5.6.1. The entrant must identify themselves, the BRZ to be entered and the BRZ Entry Permit number. This will enable the control room operator the opportunity to relay any pertinent real time conditions about the BRZ prior to granting final approval.

5.6.2. The BRZ entrants will also contact the control room operator and notify them at the time they are leaving the BRZ.

6. Restricted Zones by Willamette Valley project: (see attached photos)

6.1. Dexter

6.1.1. Upstream – floating buoy line.

6.1.2 Downstream - 400 ‘

6.2 Lookout Point

6.2.1 Upstream – 200’

6.2.2 Downstream -end of island in the outlet channel.

G-5

6.3 Hills Creek

6.3.1 Upstream – floating buoy line.

6.3.2 Downstream - There are two outlet channels at Hills Creek Lake, one for the powerhouse and one for the regulating outlets/spillway. The point where these two channels converge is a natural restriction point.

6.4 Fall Creek

6.4.1 Upstream – 200’

6.4.2 Downstream – 400’

6.5 Dorena

6.5.1 Upstream – log boom

6.5.2 Downstream – 400’

6.6 Cottage Grove

6.6.1 Upstream – 200’

6.6.2 Downstream – 400’

6.7 Fern Ridge

6.7.1 Upstream – buoy markers

6.7.2 Downstream – There is a natural restriction point at the Clear Lake Road Bridge over the Long Tom River.

6.8 Foster

6.8.1 Upstream – log boom

6.8.2 Downstream – 400’

6.9 Green Peter

6.9.1 Upstream – Floating buoy line.

6.9.2 Downstream – 400’

6.10 Blue River

G-6

6.10.1 Upstream – 200’

6.10.2 Downstream – 400’

6.11 Cougar

6.11.1 Upstream – log boom

6.11.2 Downstream – There are two downstream outlet channels at Cougar Lake, the spillway channel and the regulating outlet/powerhouse channel. There is a natural restriction point where these channels converge.

6.12 Detroit

6.12.1 Upstream – log boom

6.12.2 Downstream - The current downstream restriction point is at a bridge over the outlet channel.

6.13 Big Cliff

6.13.1 Upstream – log boom

6.13.2 Downstream – 400’

7. Methodologies & References:

7.1 Chapter 10 of ER 1130-2-520 establishes the policy on restricted areas upstream and downstream of flood control dams, multi-purpose dams, and re-regulation structures.

The upstream restricted areas (including buffer zones) must allow a boater to reach the shore before being carried into the dam or intakes by the current. The downstream restricted areas (including buffer zones) must prevent a boat without power or a swimmer from being drawn into the dam or discharge areas. The minimum size of a restricted area is fixed by the hydraulic line and a buffer zone beyond this line.

7.2 Appendix AA of EP 1130-2-520 provides the procedure for determining the hydraulic line. For flood control and storage dams the hydraulic line should be determined when the discharge equals the annually-released bankfull flow. However, the customary flow of the project will be used to determine the hydraulic line, if it is less than bankfull.

7.3 Upstream of a structure, the hydraulic line is determined where the drawdown commences upstream of the dam or structure. This location will delineate the beginning of the accelerating velocity of approach and the change in water surface slope due to the presence of the dam or structure.

7.4 Downstream of the structure, the hydraulic line is determined at a location beyond which all the flow filaments move in a downstream direction. This location is below any

Attachment G

G-1

G-7 hydraulic jumps, swirling currents, or eddies where all flow is moving uniformly downstream.

7.5 ER 385-1-31 The Control of Hazardous Energy covers the issuances of Safe Clearances.

7.6 EM 385-1-91 Training, Testing , and Licensing of Small Boat Operators.

7.7 Material partially retrieved from NWP “Upstream and Downstream Restricted Area

Boundary Determination” (February 15, 2007)

G-8

Figure 5. Hills Creek Dam Downstream Restriction.

Figure 6. Fall Creek Dam Downstream Restriction.

Suggested Restriction

400 ft Suggested Restriction

G-9

Schedule:

BRZ Number

Willamette Valley Boat Restricted Zone (BRZ) Entry Permit Request Form

Date Requested:

Title, Location, Description:

BRZ to be entered:

Project Point of Contact, Phone#:

Requested by (Company Name):

Requester Contact Info, Phone, email, etc.:

Scope of Work: Dive associated with this work?

Job / Activity Hazard Analysis: No Yes Work Plan:

Communications Methods:

Attached?

Boat Operators:

Boat Certification:

Boat Size:

or Boat Operators Safety Training:

Permit Approved by:

Yes No

Boat Operator License: 3 2 4 1 4 3 2 1

1.

Secondary

Coast Guard?: State?:

2nd Boat?:

No Yes

2nd Boat Size:

3.2. 4.

Special Requirements:

Communication methods must be tested prior to entry into BRZ.

Always contact the appropriate Control Room Operator prior to entry into the BRZ and upon exiting.

Lookout Point Control Room (for LOP, HCR, FAL, DEX, FRN, DOR, COT, BLU, COU) 541-937-3072 Foster Control Room (for FOS & GPR) 541-367-5124 X 0 Detroit Control Room (for DET & BCL) 541-897-2385 X 10

Clearance Required? No Yes

Yes No

Primary

G-10

01-May-2025 12:07:19

Fall Creek Project AnnualForebay (inst) Interim Operations Rule Curve Top of Flood (834) Top of Conservation (830)

E le va tio n (f ee t)

Inflow (1day) Outflow (1day)

2024 2025 May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May

-1000

F lo w cf s)

Attachment H

H-1

For Information Use Only

Title Page
Attachment A Location Map
Attachment B Work Area
Attachment C Spill Response Form
Attachment D NWP Pesticide Use Annual Reporting
Attachment E Post Application Report
Attachment F WV and RR Projects Vegetation Removal Plan
Attachment G BRZ
Pages from Restricted Area Report
Pages from Restricted Area Report
Pages from Restricted Area Report
Pages from Restricted Area Report
Pages from Restricted Area Report
Pages from Restricted Area Report
Pages from Restricted Area Report
Pages from Restricted Area Report
Pages from Restricted Area Report
Pages from Restricted Area Report
form1[0]: COSString{}
#subform[0]:
Schedule[0]:
BRZNumber[0]: []
TitleLocationDescription[0]:
BRZLocation[0]:
DateTimeField1[0]:
PointOfContact[0]:
RequesterContactInfo[0]:
Requester[1]:
ScopOfWork[0]:
SpecReq[0]:
RadioButtonList[0]:
AHA[1]: Off
WorkPlan[1]: Off
RadioButtonList[1]:
CoastGuard[0]: Off
RadioButtonList[2]:
RadioButtonList[3]:
BoatOp1[0]:
Comms2[0]:
Stat[0]: Off
BoatSize[1]:
RadioButtonList[4]:
Boat2Size[1]:
BoatOp3[0]:
BoatOp2[0]:
BoatOp4[0]:
RadioButtonList[5]:
RadioButtonList[6]:
Comms1[0]:
ResetButton1[0]:

File details come from the government source that posted it. Updated .