05. FR-SC Project Specifications.pdf

FORT RANDALL-SIOUX CITY 230-kV TRANSMISSION LINE

STRUCTURE 103/4

ACCESS RAMPS AND TOWER EROSION REPAIR

IOWA

Solicitation N o. 89503421BWA000027 Spec No. 21WC140745-790

SECTION C

DESCRIPTION/SPECIFICATIONS

SECTION C

DESCRIPTION/SPECIFICATIONS

FORT RANDALL-SIOUX CITY 230-kV TRANSMISSION LINE

STRUCTURE 103/4

ACCESS RAMPS AND TOWER EROSION REPAIR

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

B. DESCRIPTION OF WORK:

1. The principal components of work include

2. Paragraphs “Description of Bidding Schedule Items” in Divisions – 1 and 2 describe the work. .. 3

3. The site is located approximately 3.5 miles south of Westfield, Iowa, in Plymouth County

C. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule item “Mobilization and Preparatory Work”

D. COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK:

1. COMMENCEMENT AND COMPLETION OF THE WORK:

2. SUBMITTAL APPROVAL TIME:

3. ENVIRONMENTAL PERMITS:

4. SAFETY AND HEALTH PROGRAM:

5. MAXIMUM AVAILABLE FAULT CURRENT:

E. CONSTRUCTION SCHEDULE:

1. SUBMITTALS:

2. SCHEDULE RESTRICTIONS:

F. MATERIAL:

G. IOWA SALES AND USE TAX:

H. RIGHTS-OF-WAY:

1. GENERAL:

2. Any areas disturbed in the Public rights-of-way

3. Orient construction methods and equipment

4. WORK ON THE RIGHT-OF-WAY:

I. GEOLOGIC INVESTIGATIONS:

J. ELECTRIC POWER FOR CONSTRUCTION PURPOSES:

K. WATER FOR CONSTRUCTION PURPOSES:

L. EXPLOSIVES AND BLASTING:

M. BURIED UTILITIES:

N. EMPLOYEE REQUIREMENTS:

O. ELECTRICAL MINIMUM APPROACH DISTANCES:

P. SUBMITTALS AND CORRESPONDENCE:

1. GENERAL:

2. TRANSMITTALS:

3. SUBMITTAL RESPONSE:

4. APPROVAL TIME:

5. PROJECT PROTOCOL:

DIVISION 2 – SITEWORK

A. GENERAL:

1. Structure 103/4 is isolated between the Big Sioux River and an agricultural dike

2. This contract also includes the repair of erosion around the tower footings

3. Prior to submitting a cost proposal, a field visit to the site with WAPA representatives is recommended

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Miscellaneous sitework”

2. Bidding Schedule item “Riprap protection at tower”

3. Bidding Schedule item “Anchored reinforced vegetation system (ARVS) for Access Ramp”

APPENDIX

1. Department of the Army Nationwide Permit Verification Letter dated 03/01/2021

2. Department of the Army Nationwide Permit Verification Letter dated 03/04/2021

3. Compliance Certification Form

4. Nationwide Permit No. 14, Linear Transportation Projects

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

Construct and complete Fort Randall-Sioux City 230-kV Transmission Line, Structure 103/4, Access Ramps and Tower Erosion Repair, Iowa, in accordance with the Construction Contract (Standard Form 1442); the Contract Clauses; Western Area Power Administration’s (WAPA’s) Construction Standards, including Standard 1 – General Requirements (September 2016), Standard 2 – Sitework (September 2016), Standard 3 – Concrete (September 2016), Standard 4 – Substation Metalwork and Transmission Line Lattice Structures (September 2016), Standard 5 – Transmission Line Steel Pole Structures (September 2016), Standard 6 – Light Duty Steel Pole Structures (September 2016), Standard 7 – Wood Poles (September 2016), Standard 8 – Glued Laminated Structures (September 2016), Standard 9 – Substation – Electrical (September 2016), Standard 10 – Transmission Line – Electrical (September 2016), Standard 11 – Service Building (September 2016), Standard 12 – Painting (September 2016), Standard 13 – Environmental Quality Protection (September 2016), Standard 14 – Communication Facilities (September 2016), Standard 15 – Drawings (September 2016); Standard Drawings; and these Project Specifications and Drawings.

If a conflict occurs between the Project Specifications and the Construction Standards, the Project Specifications shall govern. The Project Specifications and the Drawings are used to take exceptions or provide additions to the Construction Standards. Some paragraphs in the Construction Standards will not apply to this job.

WAPA’s Construction Standards, Standard Drawings, and Electrical Equipment Standards are available at https://www.wapa.gov/DoingBusiness/SellingToWestern/Pages/what-western-buys.aspx.

WAPA Project Specifications and Construction Standards are explained in Standard 1 – General Requirements, Section 1.1.1, “Standards and Project Specifications”.

B. DESCRIPTION OF WORK:

1. The principal components of work include constructing access ramps over an existing agricultural dike to facilitate vehicle traffic and repairing erosion and installing riprap around the tower foundations.

2. Paragraphs “Description of Bidding Schedule Items” in Divisions – 1 and 2 describe the work to be performed.

3. The site is located approximately 3.5 miles south of Westfield, Iowa, in Plymouth County as shown on Drawings FR-SC D 0005 and FR-SC T001.

C. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule item “Mobilization and Preparatory Work” includes the following:

a. Performing mobilization and preparatory work in accordance with Sections H and M of the contract clauses.

b. Providing a Construction Schedule and a Safety and Health Program.

c. Complying with Environmental Standards.

d. Complying with DOE O 442.2, Differing Professional Opinions for Technical Issues Involving

Environment Safety and Health.

https://www.wapa.gov/DoingBusiness/SellingToWestern/Pages/what-western-buys.aspx

D. COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK:

1. COMMENCEMENT AND COMPLETION OF THE WORK: See FAR 52.211-10 in Section F of the solicitation/contract.

2. SUBMITTAL APPROVAL TIME: Except as otherwise provided for specific submittals, WAPA will require 14-calendar days for review of drawings or data submitted for approval.

3. ENVIRONMENTAL PERMITS: The work at Structure 103/4 has been authorized by the U.S.

Army Corps of Engineers (USACE) under Nationwide Permit 14. Contractor must comply with all general conditions in the Appendix.

4. SAFETY AND HEALTH PROGRAM: Prior to the start of field construction operations at the job site, submit a Safety and Health Program. Prior to beginning onsite construction, a preconstruction safety meeting will be conducted with the Contractor’s supervisory personnel, any major subcontractors, and WAPA.

5. MAXIMUM AVAILABLE FAULT CURRENT: When protective ground leads are required, the protective ground leads shall be sized as defined below and shall meet the requirements of Standard 1 – General Requirements, Section 1.4 “Safety and Health” and the following:

a. This transmission line is a double circuit transmission line.

b. The maximum available fault current in the F R - S C - 2 2 3 0 -k V T r a ns m iss i o n l i n e f r o m t h e F o r t R a n d a l l S u b s t a t i o n t o S t r u c t u r e 1 2 0 / 2 is 14,505 amps and the X/R ratio is 10.4.

c. A minimum of one 1/0 grounds shall be used up to 42-feet, one 2/0 up to 52-feet, or one 4/0 up to 84-feet.

d. The maximum available fault current in the RS-SC 230-kV Transmission line from the

Rasmussen Substation to Structure 120/2 is 14,600 amps and the X/R ratio is 9.7.

e. A minimum of one 1/0 grounds shall be used up to 42-feet, one 2/0 up to 52-feet, or one 4/0 up to 84-feet.

f. Protective Ground Leads: Each protective ground lead shall have a permanent identification tag with unique identification number, certified wire size, and test date. Each protective ground lead shall be tested complete with connectors, in accordance with ASTM F 2249. Protective ground leads shall be retested and recertified annually. A protective ground lead without an identification tag to relate it to the annual certification of that protective ground lead shall not be used. No protective ground lead shall be longer than 36 feet, unless approved by COR. Test results shall be submitted to the COR for approval prior to use of the grounds. When using the DC test method, the Contractor shall submit testing information in the format shown below in the Personal Protective Grounds Test Report. When using the AC test method, the Contractor shall submit testing information in accordance with the test set manufacturers recommendations.

Cable

ID

Size

Condition

Cable Length ASTM Resistance

(mΩ)

Measured Resistance

(mΩ)

Pass/Fail

Feet Inches

Tester’s Signature

Test Temperature

Test Date

E. CONSTRUCTION SCHEDULE:

1. SUBMITTALS:

a. Submit a location map(s) and Section, Township, and Range identifying Borrow Excavation site(s) in accordance with Division 2 – Sitework at the same time as the Proposal for the Project, for review by WAPA.

b. Submit a construction schedule to the Contracting Officer’s Representative (COR) within 10 calendar days after date of Notice to Proceed.

2. SCHEDULE RESTRICTIONS:

a. The Contractor shall not work more than 12 hours per day and not more than 60 hours in one continuous period without approval from the Contracting Officer’s Representative (COR).

b. Be aware that access to the tower will not exist for vehicular traffic until the Contractor completes construction of the access ramp over the agricultural dike.

F. MATERIAL:

Furnish all material for completing the work.

G. IOWA SALES AND USE TAX:

As provided in the contract clause entitled “Federal, State, and Local Taxes,” the contract price includes all applicable federal, state, and local taxes and duties.

The Government is entitled to receive refunds from the State of Iowa for all sales or use taxes paid by its construction contractors with respect to goods, wares, or merchandise which become an integral part of the work.

For all goods, wares, or merchandise on which the Iowa sales or use taxes have been paid by the contractor and which become an integral part of the work, the contractor shall obtain appropriate forms from the Iowa State Tax Commission for recording the amount of purchases of such goods, wares, or merchandise. The contractor shall provide and report all data and information which may be necessary or required to enable the Contracting Officer to obtain all refunds from the Iowa Tax Commission to which the Federal Government may be entitled. The forms shall be submitted to the Contracting Officer prior to final payment under the contract.

The contractor shall insert a clause containing the substance of the foregoing subparagraph in first-tier subcontractors or purchase orders and shall require each first-tier subcontractor or vendor to include such a clause in any subcontractor purchase order which he places. The contractor shall obtain completed forms from his subcontractors and suppliers for submission to the Contracting Officer before final payment under the contract.

H. RIGHTS-OF-WAY:

1. GENERAL: Transmission line right-of-way is 125 feet wide (62.5 feet on each side of centerline).

WAPA does not represent that the Contractor can gain access to every structure site or travel continuously along the transmission line.

2. Any areas disturbed in the Public rights-of-way shall be left in conditions specified by local government and WAPA representatives.

3. Orient construction methods and equipment to utilize Government-furnished rights-of-way and the construction easement described below. Obtain additional temporary access without additional cost to WAPA.

4. WORK ON THE RIGHT-OF-WAY:

a. General: Only that excavation, dozing, or blading absolutely necessary for access to or along the transmission line will be allowed. Excavation, dozing, and blading for ease of travel may only be performed after field review and approval by the COR. Unauthorized excavation, dozing, and blading shall be immediately repaired, or WAPA will have the damage repaired and back charge the Contractor for all costs involved.

b. Ease of Travel: Excavation, dozing, or blading done for ease of travel on any easement shall be restored to the original contour of the land, and shall be compacted to a dry density not less than the natural in-place dry density of the surrounding earth. The use of water may be required to obtain the required density. Topsoil shall be stockpiled and spread on cuts prior to completion of work.

c. Property and Crop Damage: Provide to the COR a written release signed and dated by each landowner/tenant whose property was accessed or affected as a result of the Contractor’s operations. The release shall certify that the Contractor has resolved damages to the satisfaction of the landowner/tenant. Any damage made to property on or off WAPA’s rights-of-way shall become the responsibility of the Contractor, including rutting, soil compaction, and crop damage.

d. WAPA is acquiring a temporary license agreement which will give WAPA and the Contractor the right to access the work site. The Contractor shall request and receive a copy of the agreement prior to beginning construction.

I. GEOLOGIC INVESTIGATIONS:

Geologic logs of subsurface explorations included in the “Drawings” Division constitute the information and records of geologic investigations for the work. Locations of subsurface investigations are shown on the Drawings.

Samples and cores of recovered material were not retained. Bidders shall obtain their own samples and perform tests on the material to evaluate properties, which they believe to be significant. WAPA does not guarantee that the geologic information and records show the conditions that will be encountered in performing the work, but only that the geologic information and records show conditions encountered at the particular point and time the information and records were obtained.

The geologic information may not indicate variations, such as those caused by seasonal fluctuations in rainfall and other factors, which may affect the water level. The Contractor shall determine the nature of material to be excavated, the difficulties of making and maintaining required excavations, and doing other work affected by geology and ground water elevations at the worksite.

J. ELECTRIC POWER FOR CONSTRUCTION PURPOSES:

Make arrangements and provide all electric power for construction purposes. Provide necessary transmission lines, distribution circuits, transformers, and other electrical equipment for distributing the power to the places of use. At contract completion, remove temporary electrical equipment and distribution lines.

K. WATER FOR CONSTRUCTION PURPOSES:

Furnish water for construction purposes. Make arrangements for obtaining the water, and provide for conveying the water to the points of use.

L. EXPLOSIVES AND BLASTING:

Explosives shall not be used.

M. BURIED UTILITIES:

Prior to excavation, examine the area and determine the location of buried utilities. Utilities shall be identified with a marker denoting the type of service.

N. EMPLOYEE REQUIREMENTS:

In addition to the requirements listed in WAPA Construction Standard 1.4.3 all employees are restricted from wearing a headset, headphone, or other listening device, other than a hearing aid or instrument for the improvement of defective human hearing, hearing protection worn as the hazard exists, or for communication purposes while on a WAPA jobsite.

O. ELECTRICAL MINIMUM APPROACH DISTANCES:

In addition to the requirements listed in WAPA Construction Standard 1.4.9 equipment other than cranes and derricks, conductive objects, or personnel, shall not be brought closer to energized facilities than the electrical minimum approach distances established by OSHA 1926.958(b), “Materials, Handling, and Storage”. The less stringent equipment clearance distances established by OSHA 1926.960, “Working On or Near Exposed Energized Parts”, Table V-5 and Table V-6, may only be used after the Contractor has completed and submitted WAPA’s Electrical Clearance Variance form and has received the signed form in return from the COR.

P. SUBMITTALS AND CORRESPONDENCE:

1. GENERAL: The Contractor shall furnish submittals via email as specified in the Construction Standards and this Project Specification to the email address listed under the Transmittal section below and with the following requirements:

a. Submittals shall be in standard PDF, Microsoft Word (.doc/.docx), Microsoft Excel

(.xls/.xlsx), or Electronic CAD (.dwg) (AutoCAD 2010 or 2014) formats. All submittals in .dwg format shall also be submitted in .pdf format.

b. All submittals shall include the WAPA Contract number, Specification number, WAPA project title, Bidding Schedule Contract Line Item Number (CLIN) and applicable division number.

c. Multiple CLIN’s on a single submittal are not permitted.

d. A cover transmittal letter in Microsoft Word or PDF format shall be included with each email submittal.

2. TRANSMITTALS:

a. The Contractor shall transmit all submittals to the Construction Office:

Email: UGP-CS-B5600@WAPA.GOV mailto:UGP-CS-B5600@WAPA.GOV

b. The Contractor shall transmit all inquiries regarding contract changes or modifications to:

Email: dittmer@wapa.gov or richter@wapa.gov

3. SUBMITTAL RESPONSE: WAPA will respond to submittals electronically with an “Accepted” or

“Not Accepted” status with comments as appropriate in accordance with the “Commencement, Prosecution, and Completion of Work” paragraph to the email address where the submittals originated.

4. APPROVAL TIME: Approval time for submittals shall be in accordance with the “Commencement, Prosecutions, and Completion of Work” paragraph.

5. PROJECT PROTOCOL:

a. Submittals – Electronic Correspondence:

SUBJECT LINE IN EMAIL -- SUBMITTAL FORMAT

CLIN + Submittal Name – Applicable Division Number or Drawing Number – Project Title – Specification Number – Contract Number Example: 0011 Concrete Mix Design – 3.A.1 – FR-SC 230-kV Transmission Line, Structure 103/4, Access Ramps and Tower Erosion Repair, IA--21WC140745-790 –

89503421CWA0000XX

b. Payment Requests:

SUBJECT LINE IN EMAIL -- PAYMENT REQUEST FORMAT

Invoice Number – Project Title – Specification Number – Contract Number Example: Invoice 01 – FR-SC 230-kV Transmission Line, Structure 103/4, Access Ramps and Tower Erosion Repair, IA--21WC140745-790 – 89503421CWA0000XX

c. Certified Payrolls – Prime and Sub-Contractors:

SUBJECT LINE IN EMAIL -- CERTIFIED PAYROLL FORMAT

Certified Payroll (CP) – Contractor Name – Week Ending (WE) – Project Title – Specification Number – Contract Number Example: CP – Bob’s Asphalt Repair – WE 08/13/16 & 08/20/16 – FR-SC 230-kV Transmission Line, Structure 103/4, Access Ramps and Tower Erosion Repair, IA--21WC140745-790 –

89503421CWA0000XX

d. Request for Information:

SUBJECT LINE IN EMAIL -- REQUEST FOR INFORMATION (RFI) FORMAT

RFI Number – Subject – Project Title – Specification Number – Contract Number Example: RFI 003 – Labeling Info – FR-SC 230-kV Transmission Line, Structure 103/4, Access Ramps and Tower Erosion Repair, IA--21WC140745-790 – 89503421CWA0000XX mailto:dittmer@wapa.gov mailto:richter@wapa.gov

DIVISION 2 – SITEWORK

A. GENERAL:

1. Structure 103/4 is isolated between the Big Sioux River and an agricultural dike with no way of access to the tower other than by foot, ATV/ UTV, or snowmobile. The former trail to the tower has been undercut by the Big Sioux River and is no longer safe for vehicular traffic. See Drawing FR-SC T001. This contract includes the construction of earthen ramps over the agricultural dike to provide vehicular access to the tower.

2. This contract also includes the repair of erosion around the tower footings. When the river floods, flood water has carved out depressions around each footing. See Drawings FR-SC D T002, T003, T004, 2036, and 2037. At three of the four footings, the earth around each footing has eroded nearly 30 inches down to the top of the footing pad. The Contractor shall provide borrow to backfill and compact around the footings, provide a sand and gravel blanket over the compacted backfill, provide a geotextile filter fabric over the sand and gravel blanket, and provide riprap to prevent future erosion around the footings.

3. Prior to submitting a cost proposal, a field visit to the site with WAPA representatives is recommended.

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Miscellaneous sitework” includes the following:

a. Prior to obtaining backfill/borrow material, notify the CO of proposed location(s) in accordance with Division 1, Submittals paragraph. Provide a site map for each borrow location on 7.5-minute quadrangle map or better, indicate the size of the borrow area, and indicate the amount of borrow needed. WAPA will require a minimum of 45-days to perform environmental and cultural resource clearance surveys on the proposed site(s) in accordance with the National Historic Preservation Act (NHPA) and their Section 106 regulations. If environmental and cultural resource surveys have been previously performed at the borrow location(s) in accordance with the NHPA, submit the State Historic Preservation Office concurrence documentation to the CO for review by a WAPA archaeologist at least 14 days prior to the start of the borrow work. No testing, clearing, stripping, excavation, or any other activities at the proposed borrow location(s) shall be performed until approved by WAPA.

b. Clearing and removing woody and weedy vegetation from site of proposed access ramp and existing tower prior to construction. The area of the access ramp is approximately 9,500 square feet. The area of the tower is approximately 2,500 square feet. The combined area is approximately 12,000 square feet or 0.3 acres.

c. Grubbing and removing tree stumps from site of proposed access ramp and existing tower prior to construction. Contractor shall plan to grub a minimum of 8 stumps. Actual stumps are less than 3 inches in diameter.

d. Stripping topsoil from site of proposed access ramp.

e. Providing borrow material to construct embankments of access ramp.

f. Leveling site of existing tower.

g. Providing borrow material to fill depressions around four tower foundations.

h. Compacting borrow material around four tower foundations.

i. Any areas that are damaged by construction operations or by traveling to the structure shall be restored to pre-existing, or improved, conditions. Pre-existing conditions are the property conditions prior to WAPA or the Contractor performing any work at the structure. Any damages to property shall be at the expense of the Contractor.

j. The Contractor shall restore access routes and areas disturbed by construction operations, whether created by WAPA or the Contractor, to pre-existing or improved condition, as agreed upon by the COR and the landowner/tenant.

k. Removing and disposing of excess materials not suitable or needed for construction as determined by the COR. The Contractor shall dispose of waste material in an approved landfill.

2. Bidding Schedule item “Riprap protection at tower” includes the following:

a. Providing riprpap. The riprap shall be hard, dense, and durable glacial rock and be reasonably well graded from a minimum of 0.40 feet (diameter) to a maximum of 1.80 feet (diameter). The riprap shall meet Class B gradation as shown in the current South Dakota Department of Transportation’s (SDDOT) Standard Specifications for Roads and Bridges.

Recycled PCC pavement or broken concrete will not be accepted in lieu of rock riprap.

b. Riprap shall be placed meeting the general requirements of the SDDOT Standard Specifications for Roads and Bridges Section 700 Riprap except that drainage fabric shall be overlapped by 2 feet rather than 1 foot. The riprap shall be placed level at a depth of 3 feet across the 80-foot diameter riprap pad and sloped at 1:1 at the edges as shown on Drawing

FR-SC D 2037.

c. Providing sand and gravel blanket. A 6-inch deep sand and gravel blanket shall be placed over the compacted backfill and prior to placing the geotextile.

d. Providing geotextile. Riprap shall be placed on geotextile fabric as shown on drawing FR-SC

D 2037. The geotextile shall be a needle punched nonwoven fabric and shall be equal to Geotext 801 manufactured by Propex Operating Company, LLC (6025 Lee Highway, Suite 425, P.O. Box 22788, Chattanooga, TN 37422) or equal. Grab tensile strength (ASTM D- 4632), elongation (ASTM-D-4632), CBR puncture (ASTM D-6241), and trapezoidal tear (ASTM D-4533) shall be 205 lbs, 50%, 525 lbs., and 80 lbs, respectively. Geotextile shall be installed as recommended by the manufacturer. Geotextile shall not be damaged during riprap placement.

3. Bidding Schedule item “Anchored reinforced vegetation system (ARVS) for Access Ramp” includes the following:

a. Providing an Anchored Reinforced Vegetation System (ARVS) on the inner ramp, outer ramp, and for 80 feet along the top of existing agricultural dike. System shall consist of a woven high-performance turf reinforcement mat (HPTRM) in combination with percussion driven earth anchors (PDAs) and tie-down fasteners. ARVS shall be Xtreme Armor System, Configuration 110 (XAS-110) as manufactured by Western Excelsior, or equal.

b. Providing a high-performance turf reinforcement mat (HPTRM) designed for erosion control application at this site for a period of 50 years. The HPTRM shall be composed of polypropylene monofilament yarns woven into a 3-dimensional matrix that will maintain its stability without laminating or stitching. HPTRMs manufactured from discontinuous elements and/or those that include stitching, melt bonds, gluing, netting, or composites of any type will not be acceptable.

c. Providing HPTRM conforming to the following properties:

Property Test Method

Measured As

High Performance

TRM (HPTRM)

Requirement

Thickness ASTM D6525 Typical 0.3 – 0.4 in

Mass per Unit Area ASTM D6566 Typical 9.0 – 11.0 ounces/yd2

Light Penetration (Open) ASTM D 6567 Typical 25% - 35%

Color Visual Observed Green

Tensile Strength (MD x TD) ASTM D6818 MARV ≥ 4000 x 3000 lbs/ft

Tensile Strength @ 15% Strain (MD x TD) ASTM D6818 Typical ≥ 3000 x 3000 lbs/ft

Initial Tangent Modulus (MD x TD) ASTM D6818 Typical ≥ 10.5 x 17.5 kips/ft

Elongation (MD x TD) ASTM D6818 Typical ≤ 30% x 30%

Resiliency ASTM D6524 Typical ≥ 70%

UV Resistance ASTM D7238 Typical ≥ 90% (6,000 hrs)

Vegetation Establishment ASTM D7322 Typical ≥ 400%

Maximum, Permissible Shear (Vegetated) ASTM D6460 Typical ≥ 17 psf

Maximum Permissible Velocity (Vegetated) ASTM D6460 Typical ≥ 25 fps

d. Providing percussion driven earth anchors (PDAs) conforming to the following properties:

Table 1: Summary of Required PDA Composition

Component Required Material Minimum Physical Properties

Anchor Zinc-Aluminum Alloy ZAMAK 2 or ZAMAK 3

Length: 3.0 in.

Width: 1.0 in.

Cable Zinc-Aluminum Coated Carbon Steel ASTM A-1023 3mm (1/8 in)

Terminal Cap Zinc Alloy ZAMAK 2 Diameter: 4.0 in.

Cable Grip Ceramic N/A

Table 2: Summary of PDA Performance Properties

Performance Property PDA

Cable Tendon Yield Strength ≥ 1,700 lbs

Ultimate Assembly Strength ≥ 1,100 lbs

Anchor Head Bearing Area ≥ 3 sq in

e. Installing the system in accordance with manufacturer’s plans/drawings and recommended procedures.

f. Supplying all materials – HPTRM, percussion driven earth anchors (PDAs), tie-down pins, twist pins, and any other accessories – for the ARVS system from a single manufacturer.

g. Providing a native grass mix recommended for Plymouth County, Iowa by the local Natural Resources Conservation Service (NRCS) office.

h. Achieving 70 percent vegetation coverage by the end of the first growing season. If 70 percent coverage is not achieved, Contractor shall overseed the system with original NRCS-recommended native grass mix.

APPENDIX

1. Department of the Army Nationwide Permit Verification Letter dated 03/01/2021.

2. Department of the Army Nationwide Permit Verification Letter dated 03/04/2021.

3. Compliance Certification Form

4. Nationwide Permit No. 14, Linear Transportation Projects

DEPARTMENT OF THE ARMY

CORPS OF ENGINEERS, ROCK ISLAND DISTRICT

PO BOX 2004 CLOCK TOWER BUILDING

ROCK ISLAND, ILLINOIS 61204-2004

March 1, 2021

Regulatory Division

SUBJECT: CEMVR-RD-2021-0314

Gayleen Lowe Western Area Power Administration 200 4th Street SW Huron, South Dakota 57350

Dear Ms. Lowe:

Our office reviewed your application received February 25, 2021, concerning your proposed Fort Randall-Sioux City 230kV Transmission Line, Structure 103/4, Access Ramp and Tower Erosion Repair that will impact an estimated 0.1 acres of wetland. This project is located in Section 10, Township 91N, and Range 49W, Plymouth County, Iowa.

Your project is authorized under Nationwide Permit No. 14, provided you meet the Nationwide Permit terms and conditions. The IA fact sheets that include all information regarding Nationwide Permits for projects occurring within the Rock Island District, the Iowa Regional Conditions, and the Section 401 Water Quality Certification issued by the Iowa Department of Natural Resources can be found on the MVR Regulatory webpage:

https://www.mvr.usace.army.mil/Missions/Regulatory.aspx. Any special conditions associated with this permit will be listed below and must also be adhered to.

The Corps has made a determination of no effect on federally threatened and endangered species or critical habitat. The decision regarding this action is based on information found in the administrative record, which documents the District’s decision-making process, the basis for the decision, and the final decision.

Please contact our office if the project plans change and there are different impacts caused by the discharge of dredged or fill material into Corps’ regulated waters. This may require modification of your Department of the Army 404 authorization.

This verification is valid until March 18, 2022, unless the nationwide permit is modified, reissued or revoked. It is your responsibility to remain informed of changes to the nationwide permit program. We will issue a public notice announcing any changes if and when they occur.

Furthermore, if you commence or are under contract to commence this activity before the date the nationwide permit is modified or revoked, you will have twelve months from this date to complete your activity under the present terms and conditions of this nationwide permit.

This authorization does not eliminate the requirement that you must still obtain other applicable Federal, state, and local permits. If you have not already coordinated your project with the IADNR, please contact them by telephone 866/849-0321 to determine if a floodplain development permit is required for your project. You should also contact Mr. Seth Moore, in writing or telephone 515/725-8464 to determine if a sovereign lands construction permit is required or if this project may adversely impact Iowa threatened or endangered species or their habitat.

REPLY TO

ATTENTION OF

https://www.mvr.usace.army.mil/Missions/Regulatory.aspx

-2-

You are required to complete and return the enclosed “Completed Work Certification” form upon completion of your project in accordance with General Condition No. 30 of the nationwide permits.

Should you have any questions, please contact our Regulatory Division by letter, telephone Sean Dillard at 309/794-5379, or email sean.m.dillard@usace.army.mil.

Sincerely, Matthew A. Zehr Chief, Western Branch Regulatory Division

When the structure(s) or work authorized by this nationwide permit are still in existence at the time the property is transferred, the terms and conditions of this nationwide permit, including any special conditions, will continue to be binding on the new owner(s), of the property. To validate the transfer of this nationwide permit and the associated liabilities associated with compliance with its terms and conditions, have the transferee sign and date below.

Transferee Date

Copies Furnished:

Ms. Christine Schwake Iowa Department of Natural Resources Christine.scwake@dnr.iowa.gov

Gayleen Lowe Western Area Power Administration lowe@wapa.gov

Thomas Reep Western Area Power Administration reep@wapa.gov mailto:sean.m.dillard@usace.army.mil mailto:Christine.scwake@dnr.iowa.gov mailto:lowe@wapa.gov mailto:reep@wapa.gov

DEPARTMENT OF THE ARMY

CORPS OF ENGINEERS, ROCK ISLAND DISTRICT

PO BOX 2004 CLOCK TOWER BUILDING

ROCK ISLAND, ILLINOIS 61204-2004

March 4, 2021

Regulatory Division

SUBJECT: CEMVR-OD-P-2013-0261

Ms. Gayleen Lowe Western Area Power Administration 200 4th Street SW Huron, South Dakota 57350

Dear Ms. Lowe:

Our office reviewed your application received on February 17, 2021, concerning your request for a Jurisdictional Determination for the Fort Randall-Sioux City 230kV Transmission Line, Structure 103/4, Access Ramp and Tower Erosion Repair, IA, located in Section 10, Township 91 North, Range 49 West, Plymouth County, Iowa.

Our office has completed an Approved Jurisdictional Determination (AJD) concerning your project area and we determined that there are no Waters of the United States within your project area. As there are no Waters of the United States present within your project area, provided you do not impact the Big Sioux River, which is just outside your project area, your project does not require a Department of the Army (DA) permit. The enclosed exhibit entitled, “Fort Randall – Sioux City, Iowa, Access Ramp Over Existing Dike After Structure 103/4 Details, dated February 4, 2021” shows the area for this AJD.

This letter contains an AJD for the subject site. If you object to this jurisdictional determination, you may request an administrative appeal under Corps regulations found at 33 CFR Part 331. Enclosed is a Notification of Appeal Process (NAP) fact sheet and Request for Appeal (RFA) form. If you request to appeal this approved jurisdictional determination, you must submit a completed RFA form to the Mississippi Valley Division Office at the following address:

Regulatory Appeals Review Officer US Army Corps of Engineers Mississippi Valley Division (CEMVD-PD-OD) 1400 Walnut Street, Vicksburg, MS 39180

In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal under 33 CFR Part 331.5, and that it has been received by the Division Office within 60 days of the date of the NAP.

REPLY TO

ATTENTION OF

-2-

It is not necessary to submit an RFA form to the Division Office if you do not object to the approved jurisdictional determination contained in this letter.

You are advised that this determination for your project is valid for five years from the date of this letter. If the project is not completed within this five-year period or your project plans change, you should contact our office for another determination.

Should you have any questions, please contact our Regulatory Division by email, letter, or telephone Alex Meincke at alexander.c.meincke@usace.army.mil or 309/794-53268.

Sincerely, Alex Meincke Project Manager, Western Branch Regulatory Division

Enclosures

Copies Furnished:

Ms. Chris Schwake Iowa DNR christine.schwake@dnr.iowa.gov

Mr. Tom Reep Western Area Power Administration Reep@WAPA.GOV mailto:alexander.c.meincke@usace.army.mil mailto:christine.schwake@dnr.iowa.gov mailto:Reep@WAPA.GOV

COMPLETED WORK CERTIFICATION

Permit Number: CEMVR-RD-2021-0314

Name of Permittee: Western Area Power Administration

County/State: Plymouth / Iowa

Date of Issuance: March 1, 2021

Upon completion of the activity authorized by this permit and any mitigation required by the permit, sign this certification and return it to the following address:

U.S. Army Engineer District, Rock Island

ATTN: Regulatory Division Clock Tower Building Post Office Box 2004 Rock Island, Illinois 61204-2004

Please note that your permitted activity is subject to a compliance inspection by a U.S. Army Corps of Engineers representative. If you fail to comply with this permit, you are subject to permit suspension, modification, or revocation.

I hereby certify that the work authorized by the above reference permit has been completed in accordance with the terms and conditions of the said permit, and required mitigation was completed in accordance with the permit conditions.

Signature of Permittee Date

SD

� ��������������0������� �������������!������������"���0���#������������� ��� ���(�1'�� ������*� #��%���������1��� ��1�#�����0�%���� �%��������1���#��������2�����/��� ����������**�2&3�*)* �# ��������/���������� ���������%��������1��������3��� �4� ����������566��**�$ % 2 ��1��������#��� �%��������1���������2�����/��� ������**�$ % 2 ��*��# ���������������� �������/���**�2&3�**1#��72����� ��������������8� ����6��)1�)�������+����� ���3�!���� ��99�&3��1�5�# �������/���72����� �����8� ����5��)1�9 �������� � ����7��� ���2�� ������������0����������"���

�����2� �����2� ��������������������2�����/��� �����%��������1�� ���

������������**�2&3�;;�**1 ���� ��!��**1 <�����"������� �-����� ���������������"�**�2&3�;�**1 =� �+"�����$ % �2�����7�� �������2� ����� �) �������������8�������� �����������"���"���+���������"�

�����&����������1���� ��2����.��������� ��� 3�

���2������6��

������7����

� ������������������6��� �

������� � ���������������6��� � ������7����

��� 3� ���*��8,��2�����$� ����8,,79� ��2������ �����6��� � �� ����� ����21��7 ���������

���3������� ���88��13������ ��:� ����3������ ��� �����8��������1������� ����������

������������������������7����������7������8+��;���� �����6����� ���2������6����� ������������

�����7����

�7�������������� �����8 ��������� ���-����� ��%��0�� ��6��� � �����0�� ��6���� ���!$%�� ���

�����0�� ����8(��$���� ����������;�������!�� �

��� ��% �/��������"������2����

���8&��1�� �����������������) *�!�� �

���0��� ���#��

���2���� ��1�� ����������������� �)1��*"��������������������

�����3������� ���1����2���� �������

�������3������� ���6������

������������� ����)�*�!��7����� �������

� ����7����

������0�� ������0��

�����3�������

���0)+��'��

����������� ��0)+�)�� ����12�/���� �� �3�� �4���������

���5�)��",)���� ���-.")������0�� �������)�������+� ���5��

������������������6

���5�)��",)� ���-.")����

�899�����������9�����

�899�����������9�� ��� ����

�899������ ����9����������� ���1:��.���

���5�)��"���� ���,�

����3������� ���3

���5�)��"���� ���,�

���=2��>��

����12@����

����12@����

����12@�����

����12@������

����4��������������

������������#"?���2�%������,����������������������

����12@����

����12@����

����12@������

����12@������

����������@�#"?�AB22��� �����'��->/+����

����12@������

�� ���,����2����& &�����!�*�������3 ����������)

������ �'��������3

�'6%��9"�:"���"��9"�� "��:"��8"�,,"�,9"�, "�,+"�,:"�9�"�99"�9�"�9�"�9+"�����9:"�����������������

�������������9�"���

"�������4��

�&����������99���3���

������� ��� �� ������������ �'6%�&

������#� �99���3�99,�9#�$#9$$���#�$��������

0����

0������

���� ��.��� ������3�4�"� � ���������� ����� �

����4�* � �1/%��� ���������1/%���

�����"��� ���� �55��!-�55/�1������.� ����

���'6������ ���7�

���'9��- ���

�3 ���� �55��!-�55/�1� ����

�.��� �����)�*��3�4�� �1/%���

���7�

�4�

0��

� $� ��%&5#��� ���

��'������������� ��� ����1�������

��� ����1���������������2��

����������2

3�)�*�"�

���1������ �

���)�*����� ��%�������1�����������������

���1��

��������������1��

��������1��

��������1��

��������1��

���� � ��������������� ����������#�)6*�7��

�� � �����7 ���1�������

���..�!45�../�8)�**�� �?

�6/�� ���7� ���..�!45�../�8) **���

��6��8���

��������������1����

�����2!