SEMINOLE TRIBE OF FLORIDA

INVITATION TO BID

Solicitation No.: ITB 44-2026

Title: Riprap Project (Big Cypress)

Description: The Water Resources Department of the Seminole Tribe of Florida is requesting bids from qualified contractors to provide, deliver, and stack Type C riprap needed at designated staging area of the

Cowbone Canal outlet in the Big Cypress reservation.

Solicitation Release Date: September 28, 2026

Deadline for Questions: October 5, 2026 @ 5:00 PM

Bid Due Date: October 12, 2026 @ 5:00 PM

Submission Instructions: Detailed in Section III, Paragraph 3.

ITB 44-2026

SECTION I – GENERAL INFORMATION

1. BACKGROUND

The Seminole Tribe of Florida (hereinafter the “TRIBE” or “STOF”) is a federally recognized

Indian Tribe organized pursuant to Section 16 of the Indian Reorganization Act of 1934, as amended, 25 U.S.C. §5123. There are six (6) Seminole Indian Reservations in the State of Florida in Big Cypress, Brighton, Hollywood, Immokalee, Tampa, and Fort Pierce. Tribal Headquarters are located on the Hollywood Reservation in an urban environment in the Greater Fort

Lauderdale/Hollywood, Florida area. Satellite offices are located on each of the other reservations or trust land. The TRIBE also maintains off-reservation offices in Naples, Fort Pierce, Hollywood, and Miami.

The TRIBE provides various governmental services to its members and residents of its reservations similar to those services provided at the municipal or county level. Examples of such services include, but are not limited to, public works, recreation and elder services programs, police, fire, and EMS services. The TRIBE also maintains health and dental clinics, an education program, preschools and schools, a museum, two rodeo arenas, etc. In addition to governmental services, the TRIBE and the Seminole Tribe of Florida, Inc. (hereinafter “STOFI”) also are engaged in various business activities including real estate, agriculture, tourism, manufacturing, gas station/convenience stores, and sales.

The terms “Vendor”, “Respondent” and “Bidder” are used interchangeably in this document to refer to respondents of this ITB. The term “Contractor” is used in this document to refer to the awarded vendor(s).

2. ADDITIONAL ITEMS AND SERVICES

The TRIBE may require additional items or services of similar nature, but not specifically listed in this solicitation. The selected CONTRACTOR(s) agrees to provide such items or services, and shall provide the TRIBE prices on such additional items or services based upon a formula or method that is the same or similar to that used in establishing the fees as a result of this solicitation.

If the fees offered are not acceptable to the TRIBE, and the situation cannot be resolved to the satisfaction of the TRIBE, the TRIBE reserves the right to procure those items or services from others.

CONTRACTOR shall work cooperatively, when required, with any additional parties from which these services are obtained.

3. FRAUD AND MISREPRESENTATION

Any individual, corporation, or other entity that attempts to fulfill the requirements of this solicitation through fraud, misrepresentation, or material misstatement may be deemed non-responsible and such individual, corporation, or other entity’s qualification may be null and void.

4. CONFIDENTIALITY / NON-DISCLOSURE

BIDDER shall treat any information contained in this solicitation (or accumulated through other written or oral communication with the TRIBE) as confidential information. Any information provided by the TRIBE to BIDDER in this solicitation is to be used solely to permit BIDDER to reply to the solicitation and BIDDER shall make no other use of the information, inclusive of sharing the information with corporate affiliates and subsidiaries without the prior written consent of the TRIBE. BIDDER shall hold the information contained in this solicitation in strict confidence and the information obtained will not be disclosed to any third-party, vendor affiliate, or subsidiary, without the TRIBE’s prior written consent.

5. NON-EXCLUSIVITY

It is expressly understood that contractor selection does not grant CONTRACTOR an exclusive privilege to provide the TRIBE any or all of the goods and/or services that are the subject of this solicitation. The TRIBE reserves the right, as deemed in its best interest, to perform or cause to be performed the provision of the goods and/or services, or any portion thereof, herein described in any manner it sees fit, including but not limited to award to multiple contractors, and contract with other contractor(s) for the provision of goods and/or services similar or identical to those that are the subject of this solicitation.

6. DISCLOSURE

BIDDER responding to this solicitation must disclose in detail any current or past relationships with the TRIBE, Seminole Gaming, and/or STOFI and their employees.

7. ADDENDA / REVISIONS TO SOLICITATION

If it becomes necessary to revise or clarify any part of this solicitation, the TRIBE will modify this solicitation by issuance of written addenda. All addenda will clearly be marked as such and shall become part of the solicitation documents.

All questions submitted by prospective bidders will be answered via an official addendum to ensure all prospective bidders have access to the TRIBE’s answers.

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

SECTION II – QUALIFICATIONS REQUIREMENTS

1. GENERAL QUALIFICATIONS

Bids shall be considered only from bidders normally engaged in performing the type of work specified in this solicitation. BIDDER must have adequate organizational resources, facilities, equipment, and personnel to ensure prompt and efficient service to the TRIBE.

At a minimum, qualifying bids shall demonstrate that BIDDER possesses the qualifications necessary to provide high-quality services. To ensure BIDDER is capable of providing an acceptable level of service to the TRIBE, BIDDER shall meet the following minimum qualifications:

• Be the prime contractor and will not subcontract out any work or partner with another firm unless explicitly authorized in writing by the TRIBE.

• Maintain a fully equipped organization capable, technically and financially, of performing the work required, and has performed similar work in a satisfactory manner.

• Carry and maintain adequate insurance consistent with the requirements listed in

Attachment B – Insurance Requirements.

• Meet any other requirements outlined in this solicitation.

SECTION III – SUBMISSION REQUIREMENTS & INSTRUCTIONS

1. COMMUNICATION INSTRUCTIONS

All project-related questions, inquiries, concerns, and communication (including qualifications) must be routed through BidNet Direct:

BIDNET DIRECT

http://www.bidnetdirect.com/florida/seminoletribeofflorida

All submission related questions, inquiries, concerns, and communication must be routed through the following Contact Person(s):

CONTACT PERSON(S)

Name: Christian Vaquedano

Email: To: ChristianVaquedano@semtribe.com

Cc: SolicitationsUnit@semtribe.com

Phone: O: (954) 966-6300 x10967

C: (954) 882-1538

2. CONE OF SILENCE

The TRIBE and STOFI have established a solicitation silence policy, or “Cone of Silence”, prohibiting oral and written communication regarding all TRIBE and STOFI quote requests and formal solicitations for goods and services between the RESPONDENT (and its agents or representatives) and any TRIBE or STOFI employee.

The Cone of Silence begins at the time of advertisement until award.

During the Cone of Silence, respondents shall only contact the listed Contact Person in Section III, Paragraph 1. Respondents may also communicate with STOF’s Tribal Inspector’s Department for questions regarding relevant licensing or permitting requirements.

Respondents shall NOT contact any other employee of TRIBE or STOFI for information with respect to this solicitation, including but not limited to selection/scoring committee members, STOF Executive Directors, Board representatives, etc.

2.1. VIOLATIONS:

Any violation of the Cone of Silence may result in disciplinary actions, including disqualification from consideration, rescinding of award, or being barred from future business with STOF and/or STOFI, depending on the severity.

3. SUBMISSION REQUIREMENTS

BIDDER must include the items listed below as part of their submission to be considered for award:

• All exhibits according to Exhibit(s) Required for Submission (attached separately).

Failure to acknowledge and/or submit all information may result in disqualification or lower ranking due to not meeting these requirements.

Required Attachments and Exhibits provided to BIDDER by the TRIBE shall not be altered by

BIDDER and shall be completed as instructed by the TRIBE, unless otherwise instructed by the

TRIBE. Bids which include altered files may be disqualified, as determined by the TRIBE.

4. SUBMISSION INSTRUCTIONS

Electronic submissions in response to this solicitation must be submitted through BidNet Direct by the Bid Due Date and time detailed in this solicitation.

• Physical correspondence, flash drives, or any other physical media shall not be accepted.

BIDNET DIRECT

http://www.bidnetdirect.com/florida/seminoletribeofflorida

Submissions must be clear, concise, organized, legible, and easy to read and navigate. Submissions may be returned to BIDDER and required to be reorganized and resubmitted. Submissions which are deemed by the TRIBE to be illegible or unintelligible may be disqualified.

All parts, pages, figures, and tables should be numbered and labeled clearly. If submitting separate files, the File Name of each submitted attachment and exhibit must include the assigned letter; for example, Exhibit A’s File Name must state, at a minimum, “Exhibit A.” BIDDER may include additional information in the File Name, if needed.

In order to fairly evaluate all responses, bidders should not include additional information other than what is asked to be provided. This includes any information related to BIDDER’s organization that was not specifically asked to be provided.

5. ATTACHMENTS

Please note, Attachments are reference documents which require BIDDER’s review, according to the instructions specified by the TRIBE in the “Instructions” column in the table below.

While some Attachments indicated below may be attached separately, most Attachments may be found at the end of this file.

5.1. ATTACHMENTS:

Attachment Description Instructions

Attachment A Scope of Work Review information. No further action needed.

Attachment B Insurance Requirements Review information. No further action needed.

Attachment C Riprap Specifications Review information. No further action needed.

Attachment D Filter Fabric Specifications Review information. No further action needed.

Attachment E Applicable Standards and

Publications

Review information. No further action needed.

5. PRICE

Prices stated in bid responses to this solicitation shall remain fixed and firm for all services to be performed for a minimum period of one hundred-fifty (150) calendar days from the Bid Due Date.

6. POST SUBMISSION

Any price adjustments after bid submission must be requested in writing and approved by the

TRIBE.

BIDDER may be required to clarify items related to their submission, which may include but not be limited to verifying submitted information and confirming comprehension of the full requirements of the Scope of Work, and is expected to be responsive. Bidders deemed by the

TRIBE to be unresponsive may be disqualified.

BIDDER may be required to submit and/or sign additional documentation, forms, exhibits, etc.

after the Bid Due Date and before the resultant agreement is drafted as a continuation of the solicitation requirements and/or as part of the vendor registration process. Should BIDDER be unable or unwilling to satisfy this requirement, BIDDER may be disqualified.

The TRIBE reserves the right to negotiate any and all submitted pricing, payment terms, warranties, etc. with the BIDDER or selected CONTRACTOR during the evaluation process, drafting phase of the resultant agreement, and/or at a time otherwise determined by the TRIBE.

SECTION IV – SELECTION PROCESS

1. EVALUATION CRITERIA

The TRIBE will conduct a comprehensive, fair, and impartial evaluation of all documents received in response to this solicitation.

The TRIBE shall evaluate all submissions in the order listed below:

• On-time and complete submission (with all required documentation)

• Projected completion date and lead time

• Previous performance at a satisfactory level o The TRIBE reserves the right to eliminate any submission should BIDDER have evidence of previous poor or unsatisfactory performance for similar or dissimilar services performed for the TRIBE or other companies.

• Current and pending workload with the TRIBE performing similar and dissimilar services, and capability to take on additional responsibilities without negatively impacting existing opportunities

• Any other relevant factors, as listed in the solicitation

• Pricing versus the market o Pricing will be listed from lowest price to highest price for all bidders whose submission meets the minimum requirements listed above

The applicable bid(s) will be eliminated if any of the following apply:

• Any criteria or requirements are incomplete

• Any criteria or requirements are not met

• The required schedule cannot be met

• Any other relevant factor(s) are not met, as determined by the TRIBE

The remaining bid(s) will be evaluated on a price versus the market comparison, and an awardee(s) will be determined. The TRIBE may select one (1) or multiple bidders to provide the solicited services. The TRIBE reserves the right to split award in its sole discretion.

This solicitation and selection process shall in no way be deemed to create a binding contract, agreement, or offer of any kind between the TRIBE and any entity. If the TRIBE selects a

CONTRACTOR(s) to provide the services described in this solicitation, any legal rights and obligations between the successful CONTRACTOR(s), if any, and the TRIBE will come into existence only when an agreement is fully executed by the parties, and the legal rights and obligations of each party shall at that time be only those rights and obligations which are set forth in the agreement and any other documents specifically referred to in that agreement and executed by the parties.

2. RIGHT TO RESCIND AWARD

The awarded CONTRACTOR(s) will be required to enter into a formal agreement for these services after award. The TRIBE expects the awardee to suggest minimal revisions to this agreement.

The TRIBE reserves the right to rescind an award should the awardee be considered, in the

TRIBE’s sole opinion, to be inflexible in its agreement negotiations.

3. SEMINOLE TRIBAL AND STOFI OWNED BUSINESS PREFERENCE

The TRIBE encourages its Seminole Tribal Member vendors and STOFI owned businesses to bid on goods and services through the competitive bidding process and will give preference to qualified Seminole Tribal Member and STOFI owned businesses/entities certified by the TRIBE.

In all cases, the Seminole Tribal Member owned business/entity or STOFI owned business/entity must be qualified for the applicable Scope of Work and must be able to demonstrate that the individual or business/entity has the skills and abilities to perform requested tasks in an acceptable manner.

Should bidders or prospective bidders have any questions related to Seminole Tribal Preference, please reach out to the Contact Person(s) listed in this solicitation.

4. HOW SEMINOLE TRIBAL PREFERENCE IS APPLIED

The following preference rules do not apply to projects over Five Million Dollars ($5,000,000.00) in value.

For solicitations where the most qualified, responsive, responsible, lowest-priced bidder are the deciding factors for award, the following Seminole Tribal Preference rules shall apply whether the business/entity is 51% Seminole Tribal Member owned or higher:

• For non-construction projects, preference will be given to bids submitted by Seminole

Tribal and STOFI owned businesses/entities as long as the bid is equal to or less than three percent (3%) (not to exceed $100,000) of the lowest non-Seminole Tribal Member business’s bid.

• For construction projects, preference will be given to bids submitted by Seminole Tribal and STOFI owned businesses/entities as long as the bid is equal to or less than four percent

(4%) (not to exceed $200,000) of the lowest non-Seminole Tribal Member business’s bid.

5. VENDOR APPLICATION AND REGISTRATION PROGRAM

Because the TRIBE is engaged in Indian tribal gaming in accordance with the Indian Gaming

Regulatory Act and the regulations promulgated by the National Indian Gaming Commission, the

TRIBE cannot engage in significant transactions with individuals or business entities whom, because of past or continuing activities, associations, or reputation, might bring discredit to the

TRIBE and its gaming operations. Thus, the TRIBE has adopted a program whereby it reviews significant transactions and the persons or entities involved with those transactions to assure compliance with all applicable laws and regulations relating to gaming.

If not already an approved and registered vendor with the TRIBE, the highest scoring or lowest-priced vendor(s) will be required to submit a completed and fully executed Vendor Application and Registration Form to the TRIBE’s Purchasing Department. The highest scoring or lowest-priced vendor(s) shall not initiate this process until requested by the TRIBE’s Purchasing

Department.

Upon successful completion of an investigation into the past and current activities, associations, and reputation of the applicant, the TRIBE will assign a vendor number, and the vendor will be added to its Master Vendor File. The TRIBE may not enter into any business transactions with any vendor whose name does not appear on its Master Vendor File.

Should the highest scoring or lowest-priced vendor(s) be unresponsive or unable to successfully complete the vendor registration process, the TRIBE reserves the right to halt the vendor registration process with the highest scoring or lowest-priced vendor(s) and move onto the next highest scoring or lowest-priced vendor(s). Should the next highest scoring or lowest-priced vendor(s) be unresponsive or unable to complete the vendor registration process, the TRIBE will continue to halt the vendor registration process and move on to the next highest scoring or lowest-priced vendor(s) until a vendor(s) is successfully registered.

ATTACHMENT A

SCOPE OF WORK

1. INTRODUCTION

The TRIBE is requesting bids from qualified contractors to provide, deliver, and stack Type C riprap needed at the designated staging area of the Cowbone Canal outlet in the Big Cypress reservation, in accordance with the specifications listed in this solicitation.

2. PROJECT DETAILS

CONTRACTOR shall furnish all labor, equipment, and hauling necessary for the proper placement of limestone riprap as listed in the solicitation.

PRODUCTS

Type Quantity

Limestone Riprap 662 square yards / 1,100 tons

Non-woven needle-punched geotextile filter fabric

1,100 square yards / 825 pounds

This includes: 662 square yards (1,100 tons) of limestone rip rap, 12"-18" thick (3"-8" nominal) and one thousand and one hundred (1,100) square yards of non-woven, needle-punched geotextile

(filter) fabric (825 pounds with 12 oz per square yard)

• All Limestone ripraps must follow specifications listed in Attachment C – Riprap

Specifications.

• All fabric must follow specifications listed in Attachment D – Filter Fabric Specifications.

• Delivery of all materials must be stacked onsite at Cowbone Outlet (81°1.5807414'W, 26°17.6759946'N) in the Seminole Indian Big Cypress Reservation.

2.1. ADDITIONAL CONTRACTOR RESPONSIBILITIES:

• CONTRACTOR shall furnish testing certificates from qualified independent testing laboratory to the TRIBE prior to acceptance of the rock source to verify the conformity to the requirements in the Contract documents.

• CONTRACTOR is to ensure safe delivery of riprap and fabric to designated point listed in the location section.

• CONTRACTOR shall coordinate all delivery dates and times with the Tribe’s Project

Manager prior to completion.

2.1.1. PERMIT REQUIREMENTS:

• All work performed under the resultant agreement shall be in strict compliance with the Florida Building Code, industry standards, OSHA regulations, and local municipalities.

• CONTRACTOR shall be responsible for timely obtaining all necessary permits and inspections through appropriate agencies, if needed.

o Contact the TRIBE’s Tribal Inspector’s Department via email at buildingdept@semtribe.com for requirements.

o All new incoming permitting applications shall be sent to the Tribal

Inspector’s Department by the digital self-service portal:

https://lmp.semtribe.com/EnerGov_Prod/SelfService. CONTRACTOR shall follow the instructions to register. Once registration has been approved, CONTRACTOR or delegate will be able to log in to use the site.

• CONTRACTOR shall produce all necessary county and local licenses, when applicable.

3. TRIBE’S RESPONSIBILITIES

• The TRIBE will provide the staging plan which will include the sited location for the delivery of the materials.

4. LOCATION OF SERVICES

The services described in this solicitation shall be completed at the locations identified below:

Cowbone Outlet at 81°1.5807414'W, 26°17.6759946'N in the Seminole Indian Big Cypress

Reservation. The specific staging location will be indicated by the Tribe.

5. PERIOD OF PERFORMANCE

Estimated delivery is required on January 21, 2027, to be confirmed with the TRIBE. Materials shall be delivered following notice to proceed by the Tribe’s Project Manager. The timeline is estimated based on anticipated start work dates. Delivery date may change. Following the note to proceed the CONTRACTOR will have ten days from the delivery date to deliver and stack materials in the specified part of the designated staging area.

All services described in the Scope of Work must commence within five (5) calendar days of receipt of Purchase Order and Notice to Proceed (email sufficient) and must be completed within ten (10) calendar days, or as otherwise determined by the TRIBE.

ATTACHMENT B

INSURANCE REQUIREMENTS

The VENDOR shall procure and maintain, for the duration of this contractual agreement, the following required insurance with insurers financially acceptable and lawfully authorized to do business in the states where TRIBE conducts operations. Such coverage shall protect VENDOR against claims arising from sickness, disease, death or injury to persons, and/or physical damage to tangible property, including loss of use, which may arise from the goods, products or services provided by the VENDOR, its agents or representatives.

The VENDOR shall be responsible for ensuring that each subcontractor or subconsultant maintains insurance coverage with limits, terms, and conditions that are comparable to and appropriate for the portion of the scope of work they perform. The VENDOR must obtain and monitor certificates of insurance and all required endorsements from each subcontractor.

The maintenance of proper insurance coverage is a material element of the contract and failure to maintain or renew coverage may be treated as a material breach of the contract, which may result in withholding payments or termination of the contract.

Minimum Scope of Insurance

VENDOR’s insurance coverage shall include the following minimum limits and coverage:

1. Commercial General Liability insurance on an occurrence coverage form, at least as broad as the

Insurance Services Office Commercial General Liability Policy form CG 0001 ©, current edition.

Other than standard exclusions applicable to pollution, asbestos, mold, employment practices, ERISA and professional liability, there shall be no limitations or exclusions beyond those contained in the standard policy forms which apply to property damage, products and completed operations, contractual liability or construction defects. In addition to procuring and maintaining this insurance during the duration of the contract, VENDOR agrees to continue to procure and maintain products and completed operations liability insurance coverage for a minimum of three years after the date the contract is completed or terminated.

2. Automobile Liability insurance covering liability arising from the use or operation of any auto, including those owned, hired or otherwise operated or used by or on behalf of the VENDOR. The coverage shall be at least as broad as the Insurance Services Office Business Automobile Policy form CA 0001 ©, current edition.

3. Workers' Compensation and Employer’s Liability insurance as is required by statute or law, or as may be available on a voluntary basis. If the VENDOR is exempt from this requirement, both the VENDOR and its employees shall hold the TRIBE harmless from any injuries incurred during the performance of the contract. An exempt VENDOR must provide either: (i) a written statement on company letterhead confirming the number of employees, stating that Workers' Compensation insurance is not required, and affirming that no additional employees will be hired during the contract term; or (ii) a valid Certificate of Exemption.

Minimum Limits of Insurance

VENDOR shall maintain the following minimum limits of insurance, if applicable (unless higher limits required by law or statute):

1. Commercial General Liability (including umbrella or excess liability): $1,000,000 per occurrence, bodily injury, and property damage liability; $1,000,000 per offense personal and advertising injury liability; $2,000,000 products and completed operations policy aggregate and $2,000,000 policy general aggregate applicable to claims other than products and completed operations.

2. Automobile Liability: $1,000,000 combined bodily injury and property damage liability per accident for bodily injury and property damage.

3. Employer's Liability: $1,000,000 accident for bodily injury by accident or disease, including $1,000,000 disease aggregate.

Deductibles and Self-insured Retentions

The funding of deductibles and self-insured retentions maintained by VENDOR shall be the sole responsibility of VENDOR, including any amounts applicable to deductibles or self-insured retentions applicable to claims involving the Tribe as an additional insured.

Other Insurance Provisions

The required insurance shall contain the following additional provisions:

ADDITIONAL INSURED – The TRIBE must be included by endorsement as an additional insured with respect to all liability policies (except Professional Liability and Workers’ Compensation) arising out of work or operations performed on behalf of the VENDOR including materials, parts, or equipment furnished in connection with such work or operations and automobiles owned, leased, hired or borrowed in the form of an endorsement to the VENDOR’s insurance.

WAIVER OF SUBROGATION - VENDOR agrees to obtain any endorsement that may be necessary to affect the waiver of subrogation on the coverages required. However, this provision applies regardless of whether the Tribe has received a waiver of subrogation endorsement from the insurer.

NOTICE OF CANCELLATION - Each insurance policy shall be endorsed to require Insurer(s) to provide thirty (30) calendar days’ written notice to the TRIBE by certified mail, return receipt requested, prior to any suspension, cancellation or non-renewal of the required insurance.

PRIMARY COVERAGE - VENDOR’s required insurance coverage shall be primary insurance, and any insurance or self-insurance maintained by the Tribe shall be excess of and non-contributory with

VENDOR’s insurance.

ACCEPTABILITY OF INSURERS – Insurance is to be placed with insurers with a current A.M. best’s rating of not less than A- VII, unless otherwise approved by the TRIBE. If not rated, exceptions may be made for members of the Florida Insurance Funds (i.e. FWCIGA, FAJUA). Carriers may also be considered if they are licensed and authorized to do insurance business in the State of Florida.

VERIFICATION OF COVERAGE – VENDOR shall furnish the TRIBE with a certificate of insurance evidencing the required coverage prior to the delivery of product, goods, or services to the TRIBE. The certificates are to be signed by a person authorized by the insurer(s) to bind coverage on their behalf.

Renewal certificates are to be provided to the TRIBE prior to the expiration of the required insurance policies. As an alternative to a certificate of insurance, VENDOR’S broker or insurer may provide complete, certified copies of all required insurance policies, including endorsements necessary to affect coverage required by these specifications.

CERTIFICATE HOLDER MUST READ:

Seminole Tribe of Florida

6300 Stirling Road

Hollywood, FL 33024

SPECIAL RISKS OR CIRCUMSTANCES - The Seminole Tribe of Florida reserves the right to modify these requirements, including limits, based on the nature of the risk, prior experience, insurer, coverage, or other special circumstances. Compliance with the foregoing requirements shall not relieve the VENDOR of his liability and obligation under this section or under any other section of this agreement.

ATTACHMENT C

RIPRAP SPECIFICATIONS

A. The CONTRACTOR shall furnish stone for riprap that is sound, durable and angular in shape.

No more than 10 percent of the stone for any gradation shall have an elongation (ratio of greatest dimension to least dimension) greater than 3:1, and no stone shall have an elongation greater than 4:1. The riprap material shall be provided by a Florida Department of Transportation

(FDOT) certified pit or from onsite excavations and conform to the following additional requirements. The CONTRACTOR shall provide the Tribe all required test results for the limestone obtained onsite to verify if it meets the requirements.

B. Material shall be free from cracks, seams, moldic porosity after shells, non-mineralized or other defects that would tend to increase its deterioration from natural causes. Riprap shall consist of dense, natural rock fragments. Stones shall be resistant to weathering and to water action; free from overburden, spoil, shale and organic material; and shall meet the gradation requirements below. Shale and stones with shale seams and limestone with moldic pores after shells are not acceptable.

C. Stone for riprap shall have the following properties:

Test Name and Method Test Value Criteria

Property Test Test

Method

Limestone Granite

Unit Weight (saturated surface-dry)

ASTM

C127

145 pcf min 165 pcf min

Specific Gravity

(saturated surface-dry)

ASTM

C127

2.38min 2.65 min

Absorption ASTM

C127

5% max 1% max

Sodium Sulfate

Soundness

ASTM C88,

D5240

10% max loss, 5 cycles 5% max loss, 5 cycles

LA Abrasion ASTM

C535

40% max loss, 1000 revolutions

20% max loss, 1000 revolutions

Freeze and Thawing ASTM

D5312

15% max, 20 cycles 10% max loss, 20 cycles

Wetting and Drying ASTM

D5313

1% max, 10 cycles with no progressive cracking

1% max loss, 30 cycles with no progressive cracking

Durability Index ASTM

D3744

Refer to Durability

Absorption Ratio

Petrography ASTM

C295

Fresh, interlocking crystalline, no clay minerals, Fresh, interlocking crystalline, no clay no shell fragments, no voids, and no soluble materials minerals, no voids, and no soluble materials

1. Freezing and Thawing and Wetting and Drying. Stone material shall be subjected to freezing and thawing and wetting and drying testing in accordance with ASTM D5312 and ASTM D5313 respectively. Photographs for freezing and thawing and wetting and drying testing shall be taken for each sample tested both before and after testing. Slabs cut for freeze and thawing testing shall have a surface area of 144 square inches on each sawed faced. Any changes observed in the testing specimen including, but not limited to, cracking, spalling, rock popping, or dissolving shall be recorded and photographed at the completion of next test cycle.

2. Stones shall consist of durable, sound, hard, angular rock meeting the following requirements for durability absorption ratio, soundness test, and abrasion test.

3. Petrography. Stone material shall be subjected to comprehensive petrographic evaluation in accordance with ASTM C295. Stone material shall be fresh (no signs of weathering), with interlocking crystalline structure, and free of material such as expansive clays or any detrimental or deleterious features discussed in subparagraph "Stone Material Quality". Crystalline structure refers to igneous, metamorphic, or sedimentary rock texture consisting of interlocking, crystalline grains. Matrices of any stone consisting of argillite, sericite, smectite, talc, chloritic, soft material, or highly weathered material shall be identified and noted. Examination shall include description of any seams, veins, shell fragments, visible pores or joints and an estimate of alteration, degree of weathering, and probable rock durability. The comprehensive petrographic examination shall also include description of dominant, accessory and alteration minerals. The petrographic examination shall be conducted by a State Licensed Professional

Geologist specializing in the field of Mineralogy or Petrography. Photographs of stone material examined shall accompany the petrography testing results. Petrography may be completed at a laboratory other than an approved USACE validated commercial testing laboratory; however, certification proving that a State Licensed Professional Geologist specializing in the field of

Mineralogy or Petrography will be completing this evaluation must be included in the Evaluation

Testing of Stone Submittal for review and approval.

4. Stone Material Quality. All stone material shall be free of any detrimental geologic features such as, but not limited to, clay seams, shale seams, argillaceous material, any styolites, schistose seams, detrimental vugs zones or seams, zones of high foliation, and/or other adverse diagenetic features or seams. No schistose stone material or any highly foliated stone material will be acceptable. Sedimentary or metamorphic stone containing carbonaceous, coal, clay seams/lenses/joints or similar deleterious features will not be permitted or accepted. All stone material utilized shall be free of cracks, blast fractures, bedding seams, foliation seams, foliation joints, joints, any deleterious features such as splits, spalls, delaminations, disaggreations, dissolvement, shalely parting, or combination thereof of such features, and/or other defects that would tend to increase its deterioration from natural causes. An independent licensed

Professional Geologist, licensed in any U.S. State, that issues a Professional Geologist License, shall determine if the aforementioned features are present within stone material from any of the proposed Stone Source(s). Discussion of Stone Material Quality and any detrimental or deleterious features present within any source shall be included in Evaluation Testing of Stone and the Stone Source Submittal for that Stone Source. Examples of deleterious and detrimental features in stone can be viewed in ERDC/GL TR-81-8. EM 1110-2-1601, EM 1110-2-1100 Part

VI and EM 1110-2-2302 provide guidance on the stone properties, characteristics, and gradations specified herein.

5. Stone gradation based on a representative sample of not less than 2.0 cubic yards. Each stone in the sample shall be individually weighed, and a cumulative plot of percent lighter (by weight) versus stone weight in pounds shall be submitted.

D. The riprap shall be graded as follows:

Type C (18-inch Average Size)

Sieve Size Percent Passing by Weight Maximum Minimum

30” 22” 100

20” 18” 50

16” 12” 15

E. Control of gradation shall be by visual inspection. The CONTRACTOR shall furnish a sample of the proposed gradation of at least 5 tons or 10 percent of the total riprap weight, whichever is less. If approved, the sample may be incorporated into the finished riprap at a location where it can be used as a frequent reference for judging the gradation of the remainder of riprap. Any difference of opinion between the Tribe and the CONTRACTOR shall be resolved by dumping and checking the gradation of two (2) random truckloads of stones. Arranging for and the costs of mechanical equipment, a sorting site, and labor needed in checking gradation shall be the

CONTRACTOR’s responsibility.

F. The acceptability of the stones will be determined by the Tribe prior to placement. Any visual variability and deviation in the test results of the individual rocks is unacceptable.

ATTACHMENT D

FILTER FABRIC SPECIFICATIONS

FILTER FABRIC: The CONTRACTOR shall provide a 12 ounce per square yard, non-woven, needle-punched geotextile (filter) fabric conforming to the following properties:

Criteria Minimum Average Roll Value

Permittivity (sec-1)

0.7 (<15% passing 200 Sieve)

0.2 (>15% to <50% passing 200 Sieve)

Minimum Grab Tensile Strength 1.3 kN

Minimum Puncture Strength 0.8 kN

Minimum CBR Puncture Resistance 3.7 kN

Minimum Trapezoidal Tear 0.5 kN

UV Resistance 50% in 500 hours

ATTACHMENT E

APPLICABLE STANDARDS AND PUBLICATIONS

Standards or Codes: The edition of the standards of the organizations listed below in effect at the time of the advertisement for bids form a part of this specification to the extent referenced. In the case of a conflict between the requirements of this SECTION and those of the listed document, the requirements of this SECTION shall prevail.

ASTM International (ASTM):

C127 Standard Test Method for Relative Density (Specific Gravity) and Absorption of Coarse

Aggregate

C295 Standard Guide for Petrographic Examination of Aggregates for Concrete

C535 Standard Test Method for Resistance to Degradation of Large Size Coarse Aggregate by

Abrasion and Impact in the Los Angeles Machine

D3744 Standard Test Method for Aggregate Durability Index

D5240 Standard Test Method for Evaluation of Durability of Rock for Erosion Control Using

Sodium Sulfate or Magnesium Sulfate

D5312 Standard Test Method for Evaluation of Durability of Rock for Erosion Control Under

Freezing and Thawing Conditions

D5313 Standard Test Method for Evaluation of Durability of Rock for Erosion Control Under

Wetting and Drying Conditions

American Association of State Highway and Transportation Officials (AASHTO):

T85 Standard Method of Test for Specific Gravity and Absorption of Coarse Aggregate

T210 Standard Method of Test for Aggregate Durability Index

Florida Department of Transportation (FDOT):

Standard Specifications for Road and Bridge Construction

514 Standard Specification for Plastic Filter Fabric (Geotextile)

901 Standard Specifications for Coarse Aggregate

Florida Methods:

3-C-535 Resistance to Degradation of Large-Size Coarse Aggregates by Abrasion and Impact in the Los Angeles Machine

5-538 Sampling and Testing Rip-Rap Material

U.S. Army Corps of Engineers (USACE)

ERDC/GL TR-81-8 Evaluation of Quality and Performance of Stone as Riprap or Armor

EM 1110-2-1601 Engineering and Design: Hydraulic Design of Flood Control Channels

EM 1110-2-1100 Part VI Coastal Engineering Manual: Design of Coastal Project Elements

EM 1110-2-2302 Engineering and Design: Construction with Large Stone