PUBLIC IMPROVEMENT INVITATION FOR BID

26-039 (WWAN05)

FY2026 NORTH MANHOLE REHABILITATION PROJECT

City of Pueblo

230 S. Mechanic St.

Pueblo, CO 81003

RELEASE DATE: August 11, 2026

DEADLINE FOR QUESTIONS: August 25, 2026, 4:00 pm

RESPONSE DEADLINE: September 2, 2026, 11:00 am

RESPONSES MUST BE SUBMITTED ELECTRONICALLY TO:

https://procurement.opengov.com/portal/pueblo https://procurement.opengov.com/portal/%7bproject.government.code%7d

City of Pueblo

PUBLIC IMPROVEMENT INVITATION FOR BID

FY2026 North Manhole Rehabilitation Project

I. ADVERTISEMENT FOR BIDS

II. INTRODUCTION

III. SPECIAL PROVISIONS

IV. LABOR PROVISIONS

V. GENERAL PROVISIONS

VI. VENDOR SUBMISSIONS

VII. PRICING TABLE

Attachments:

A - Sample Contract Documents

B - Licensing and Sales Tax Information

C - FY2026 North Manhole Rehab Project IFB Drawings 080526

Public Improvement Invitation for Bid #26-039 (WWAN05) Title: FY2026 North Manhole Rehabilitation Project

1. ADVERTISEMENT FOR BIDS

(AS PUBLISHED)

The City of Pueblo is soliciting bids for the following project.

Project No.: 26-039 (WWAN05)

Project Name: FY2026 North Manhole Rehabilitation Project

In general, this project will consist of rehabilitating existing manholes throughout the City of Pueblo by placing calcium aluminate and epoxy coating. Specifically, the rehabilitation will include placing 159 vertical feet of epoxy coating and 159 vertical feet of calcium aluminate patching of existing manholes, rebuilding 11 manhole benches and troughs with fast-setting cementitious material, removing and replacing 1 manhole ring and lid, as detailed in the plans and specifications.

Complete solicitation information can be obtained on the City of Pueblo Purchasing Department website at www.pueblo.us/purchasing or the OpenGov portal at https://procurement.opengov.com/portal/pueblo.

Published: Tuesday, August 11, 2026, in The Pueblo Chieftain Newspaper http://www.pueblo.us/purchasing https://procurement.opengov.com/portal/pueblo

2. INTRODUCTION

2.1. Summary

In general, this project will consist of rehabilitating existing manholes throughout the City of Pueblo by placing calcium aluminate and epoxy coating. Specifically, the rehabilitation will include placing 159 vertical feet of epoxy coating and 159 vertical feet of calcium aluminate patching of existing manholes, rebuilding 11 manhole benches and troughs with fast-setting cementitious material, removing and replacing 1 manhole ring and lid.

2.2. Contact Information

Sonia Mondragon

City of Pueblo Wastewater Engineering Manager

1300 S Queens Ave

Pueblo, CO 81001

Email: smondragon@pueblo.us

Phone: (719) 553-2890

Department:

Wastewater

2.3. Timeline

Advertisement/Release Project Date August 11, 2026

Pre-Bid Meeting (Mandatory) August 18, 2026, 10:00am

Wastewater Reclamation Facility Engineering

Conference Room 1300 S. Queens Avenue

Pueblo, CO 81001

Question Submission Deadline August 25, 2026, 4:00pm

Bid Opening September 2, 2026, 11:00am mailto:smondragon@pueblo.us tel:(719)553-2890

3. SPECIAL PROVISIONS

3.1. GENERAL INSTRUCTIONS

All specifications included in the Special Provisions shall have precedence over and will govern in the event of a conflict with other sections contained in this document.

Bidders are responsible for obtaining, reading, and carefully examining the entire Contract Documents package, including any Addenda, prior to submitting a bid. Failure to do so will not relieve a Bidder from any obligation or responsibility to understand and comply with all requirements and conditions for this project.

Bidders shall inform themselves of the conditions of the project site and the requirements of the project's scope of work before submitting their bid. No allowances shall be made by reason of any matter or thing concerning which they might not have been fully informed prior to the bidding. No

Bidder will be heard after the opening of bids to assert that there was any misunderstanding as to the nature of the operation expected in this solicitation. If a pre-bid meeting is held, Bidders should make every effort to attend. If the pre-bid meeting is mandatory and the Bidders cannot attend, it is imperative that someone else attend as a representative of the company, otherwise, their bid will not be accepted at the time of bid opening.

Downloaded plans/drawings must be printed as “Actual Size”; scaling is NOT correct when printed using other options. It is the Bidder’s sole responsibility to ensure plans are printed correctly and to inform third-party printers of this information. The City is not responsible for bidding errors resulting from Bidder’s failure to follow this requirement.

Each bid must be accompanied by a certified check, cashier's check, money order or bid bond in the amount of five (5) percent of the grand total bid, plus all alternates if applicable, payable to the City of

Pueblo as a guarantee that if the bid is accepted, the bidder will execute and file the proposed contract and bonds within ten (10) days from the date of the Notice of Award.

The City is accepting electronic bid submissions. Bidders shall create a FREE account with OpenGov by signing up at OpenGov Procurement. Once you have completed account registration, browse back to this page, click on "Submit Response", and follow the instructions to submit the electronic bid.

Bidders must follow the submittal procedures outlined in the bid documents. The City reserves the right to reject any or all bids for any or all items covered in the Invitation for Bid, to waive informalities or defects in bids, or to accept such bids as it shall deem to be in its best interest.

3.2. STANDARD CONSTRUCTION SPECIFICATIONS AND STANDARD DETAILS

The 2026 Standard Construction Specifications and Standard Details for City of Pueblo, Colorado, adopted January 12, 2026, and as most recently amended, shall control the construction and quality of materials for this project except where specifically modified by the Special Provisions. Unless specifically modified by the Special Provisions, the 2026 Standard Construction Specifications and Standard Details shall control with respect to any inconsistencies with the Plans. The 2026 Standard Construction

Specifications and Standard Details are not included in this bid package but are available on the City of https://procurement.opengov.com/signup https://www.pueblo.us/3073/2026-Construction-Standards

Pueblo’s website at 2026 Standard Construction Specifications and Standard Details. By submitting a bid, the Contractor acknowledges possession of a copy of said document.

3.3. SPECIFICATION LANGUAGE

Specifications may be written in abbreviated style with incomplete sentences. Omission of words such as “The General Contractor shall”, “Conforming to”, “shall be”, etc., are intentional; omitted words shall be supplied by inference. Where words “approved”, “satisfactory”, “directed”, “submitted”, etc., are used it shall be assumed that the words “Project Manager” follows, such as “approved by the Project

Manager”.

3.4. APPROVED EQUAL

An approved equal, where noted, may be considered by the City. For consideration as an approved equal, a Request for Substitution must be submitted through the OpenGov portal by Tuesday, August

25, 2026 at 4:00 pm (MT). Requests shall clearly describe the product for which approval is requested, including all data necessary to demonstrate acceptability. If approved, an addendum will be issued that lists all approved equal products or materials. No other products or materials will be considered.

3.5. INCONSISTENCIES

Any inquiries regarding seeming inconsistencies between the Plans and Specifications for this project must be made by Tuesday, August 25, 2026 at 4:00 pm (MT).

3.6. PREPAYMENT OF CITY SALES AND USE TAX

(This section applies to public improvement construction projects $100,000 and over.)

The Contractor shall make application for, and prepayment of, City sales and use tax on the estimated percentage basis being forty percent (40%) of the total Project bid as awarded, including Base Bid plus those Alternates selected. Application and prepayment shall be made within fourteen (14) days of the date authorized to proceed with construction of the Project as set forth in the Notice to Proceed. All applications and prepayments shall be coordinated directly with City’s Division of Sales and Use Tax, Attention: Tax Audit Manager, 1 City Hall Place, Pueblo, Colorado 81003.

Finance Department policy sets the threshold at $100,000. Any contractual obligations below this amount will not generally be required to make a pre-payment of Use Tax.

3.7. PERA LIABILITY

Contractor shall reimburse the City for the full amount of any employer contribution required to be paid by the City of Pueblo to the Public Employees’ Retirement Association (“PERA”) for salary or other compensation paid to a PERA retiree performing contracted services for the City under this Agreement.

Awarded Contractor will be required to submit a completed Colorado PERA Questionnaire form. This form is available to view at Colorado PERA Questionnaire and is included by reference in this Contract.

3.8. CONTRACTOR EVALUATION

The performance of the awarded Contractor will be evaluated using the Contractor Evaluation

Form. This form is available to view at Contractor Evaluation Form and is included by reference in this https://www.pueblo.us/3073/2026-Construction-Standards https://www.pueblo.us/DocumentCenter/View/19915/PERA-Form https://www.pueblo.us/DocumentCenter/View/21071/Contractor-Evaluation-Form-Updated-July-2018?bidId=

Invitation for Bid. The evaluation will be utilized to review Contractor’s performance, increase communication, and foster positive business relationships.

The completed evaluation form will serve to document Contractor’s overall performance. Material failure to perform in accordance with the terms of one or more contracts, or materially unsatisfactory performance of one or more contracts, may be justification for disqualifying future bids by Contractor pursuant to Pueblo Municipal Code, Title 1, Chapter 10, Section 1-10-4(d).

3.9. SITE INVESTIGATION

By submitting a bid, Contractor acknowledges the nature and location of the work, the general and local conditions, particularly those bearing upon transportation, disposal, handling and storage of materials, availability of labor, water, electric power, uncertainties of weather, physical conditions at the site, the character/quality of surface and subsurface materials to be encountered, the character of equipment and facilities needed prior to and during the work, and all other matters which can in any way affect the work or the cost thereof under this Contract. Failure by Contractor to acquaint themself with all the available information concerning these conditions will not relieve them from responsibility for estimating properly the difficulty or cost of successfully performing the work.

3.10. PRE-CONSTRUCTION CONFERENCE

The Contractor shall attend a pre-construction conference with the Project Manager, City employees, representatives of the utility companies, and/or other interested parties prior to any construction.

Preconstruction meeting will be scheduled 7-10 days after notice of award is issued.

• Traffic Control plan(s) for review by the City.

• American Traffic Safety Services Association or Colorado Contractors Association certificate for traffic control supervisor

• Safety Data Sheets for all materials used for the work outlined in this contract.

• All Manufacturer data on material used i.e. properties, preparation, storage, installation/application & curing.

• A certified statement from the manufacturer that the contractor/installer is trained and approved in the handling, mixing and application of the products for use.

• Bypass Pumping plan(s) for review by the City.

• Stormwater Management Plan

• Asphalt and Concrete mix designs

3.11. SAFETY REGULATIONS

The Contractor shall be aware of and shall comply with all State and Federal Safety regulations which are applicable to the work included under this Contract. Enforcement will be by the proper State and

Federal regulatory agencies.

If any construction activity is deemed to be unsafe for inspection, Contractor shall, upon notification, discontinue work until the deficiencies are corrected and the job can be properly inspected.

3.12. EMERGENCY REPAIR OR PROTECTIVE WORK BY THE CITY OF PUEBLO

As referenced in PROTECTION OF THE PUBLIC, WORK, AND PROPERTY and ACCIDENT PREVENTION of the GENERAL PROVISIONS , it is the Contractor’s responsibility to provide adequate barricades, protective devices and safety measures, and to employ other precautionary means for the adequate protection of the public, the work, and public/private property from injury or loss. Should the City become aware of any condition or circumstance arising from the work, or with respect to any excavation or areas disturbed by Contractor which, in the opinion of the Project Manager, creates or results in any imminent or unreasonable risk to the health/safety of the public or to public/private property, the City may undertake emergency work or repairs. Such work may include, by way of illustration, provision of barricades, traffic control devices or flagmen, deployment or warning signs, repair of lines under construction, repair of collapsed excavations or sinkholes, placement of sandbags or dams, and other emergency efforts. The determination of the necessity during the construction and warranty periods for the City to do any such emergency work or repairs shall rest entirely with the Project Manager. The cost of emergency work done by the City, including the actual cost of labor, equipment, and materials, plus

100 percent, shall be deducted from any amounts otherwise owed to Contractor, or may be invoiced to

Contractor, or the same amount shall be recovered from Contractor’s performance bond.

3.13. REPRESENTATIVE AVAILABLE FOR EMERGENCY CALLS

The Contractor shall provide the name, address and phone number of a representative who may be reached at any time during the life of the Contract regarding repairs, detours, barricading, etc. This information shall be furnished in writing to the Project Manager.

3.14. DUST PREVENTION

During construction and until final acceptance by the Project Manager, Contractor shall be responsible for controlling dust emissions in the construction area. No earthwork activities shall be performed when the wind speed exceeds thirty (30) miles per hour. All fill areas shall be compacted on a daily basis to

95% minimum compaction. Any mud or dirt carry out onto paved surfaces shall be cleaned up on a daily basis. Contractor shall promptly comply with all directives from the Project Manager relating to dust control. If Contractor fails to comply or provide adequate means to control dust, a stop-work order will be issued until the problem is corrected.

3.15. SITE RESTORATION AND CLEANUP

Contractor shall maintain and/or repair any damage done to all existing properties, public or private, adjacent to site improvements, including but not limited to, asphalt, base course, utilities, sod, irrigation systems and landscaped areas. In general, disturbed areas shall be replaced to the lines, grades, thickness, and like materials of the existing conditions unless otherwise stated on the plans. Restoration shall be consistent with that of areas adjacent to the limits of construction. Grass and other plant areas shall be restored, maintained, and irrigated until final acceptance by the Project Manager. Fabric shall be installed under all rock landscape areas. Any landscape material salvaged by Contractor for reuse will not be acceptable if contaminated by dirt or different landscape material. Slopes to match from the new improvements to existing improvements shall not exceed a 4:1 slope.

https://procurement.opengov.com/governments/1996/portal/pueblo/projects/285067/document?section=2747745

Site restoration and cleanup will not be measured or paid separately but shall be included in the unit prices for each bid item. Partial payments will not be made on any bid item until the restoration and cleanup associated with that item is satisfactorily complete and acceptable to the Project Manager.

3.16. UTILITY LOCATIONS

The accuracy of information furnished in regard to underground utilities is not guaranteed. The utility locations are approximate and may not include all utilities. Contractor shall determine the exact location of all utilities before commencing work. Contractor shall be fully responsible for any damage which might occur due to Contractor’s failure to locate and protect all utilities. Contractor shall repair or have repaired, at no cost to the City, any damage to utilities.

Existing utilities include gas, water, service lines, meters, meter cans, buried telephone cables, buried power lines, pedestals, utility poles, sanitary sewer, manholes and services, and any other existing utility.

3.17. ABANDONED UTILITIES

If during construction an abandoned utility is encountered Contractor shall contact and coordinate with the Project Manager to arrange for the removal of the utility. If Contractor elects to remove the utility without contacting the Project Manager, Contractor shall do so at no cost to the City.

3.18. OVERHEAD AND/OR UNDERGROUND HIGH VOLTAGE POWER LINES

Unless danger against contact with high voltage overhead and/or underground lines has been effectively guarded against, Contractor shall not perform any function/activity upon any land, building, highway, or other premises if at any time during the performance of any function/activity it could move or be placed within ten (10) feet of any high voltage overhead and/or underground line. If work is to be performed within ten (10) feet of high voltage overhead and/or underground lines, the public utility must first be notified to arrange for safety provisions. Contractor may perform the work only after arrangements, including coordination and payment of fees, if applicable, have been made with the utility company.

3.19. CONCRETE PERMITS

The “no fee” permit shall be obtained from the City Engineering Division at 211 E. “D” Street. Any concrete work placed without benefit of both permit and inspection by the Public Works Department will not be paid for.

3.20. COORDINATION OF CONSTRUCTION ACTIVITIES

Contractor and subcontractors shall coordinate work with all other construction activities and contractors; and cooperate with them to facilitate general progress of the work. Each trade shall afford other trades every reasonable opportunity for installation and storage of materials.

3.21. WORK BY OTHERS

Contractor shall coordinate work on the project with all work shown on the plans which is to be done by

“others”. It is the Contractor’s responsibility to coordinate work with each entity and incorporate it into the project schedule.

3.22. COMPLETE WORK ON TIME

Failure to complete the work by the allotted 45 calendar days shall result in the assessing of liquidated damages according to GENERAL PROVISIONS.

3.23. LAYING OUT WORK

Contractor shall locate all general reference points and take such action as necessary to prevent their destruction. Contractor shall lay out their own work and be responsible for all lines, elevations, and measurements of the building, grading, utilities, and other work executed under this Contract.

Contractor shall exercise proper precaution to verify figures shown on the drawing before laying out work and will be responsible for any error resulting from failure to exercise such precautions.

3.24. CONSTRUCTION STAKING

Contractor will be required to perform all construction staking and surveying.

3.25. HOURS OF WORK

The Project Manager and the Inspection Division are available from 7:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:00 p.m., Monday through Friday, excluding holidays. Any work done outside of these hours must be approved by the Project Manager.

3.26. MOBILIZATION

This item shall consist of mobilizing of personnel, equipment, and supplies to the project site in preparation for work on the project. Item shall include all costs incurred which must be performed prior to beginning the other items.

Partial payments for mobilization will be made each month as the work progresses. These payments will be made as follows:

A. When ten percent (10%) of the project bid amount is earned, fifty percent (50%) of the amount bid for mobilization will be paid.

B. When fifty percent (50%) of the project bid amount is earned, one hundred percent (100%) of the amount bid for mobilization will be paid.

C. The sum of all payments shall not exceed the original amount bid for the item, regardless of the fact that Contractor may have, for any reason, shut down the work on the project or moved equipment away and then back again.

Note: Payments for materials on hand will be included as a percent of original project bid amount earned until said materials have been incorporated into the work and accepted and paid for by the City.

3.27. CONSTRUCTION TRAFFIC CONTROL

Contractor shall submit a traffic control plan prepared by a Certified Traffic Control Supervisor at the preconstruction conference for approval by the City’s Traffic Engineer.

https://procurement.opengov.com/governments/1996/portal/pueblo/projects/285067/document?section=2747745

Where possible, crosspans may be constructed full width with proper street closures; however, the time of closure must be kept to a minimum. To expedite the curing, the minimum 28-day compressive strength shall be increased to 4500 psi (increased to seven (7) sacks per cubic yard). The additional cost for the added cement shall be paid by the Contractor.

All traffic control procedures, signing, lighting and barricades shall conform to the latest edition of the

Manual on Uniform Traffic Control Devices, and shall be set up and maintained by a Certified Traffic

Control Supervisor.

Construction traffic control shall be paid as “Traffic Control.” Periodic payments for this item shall be based upon the percentage of work completed compared to the original bid amount.

3.28. TRAFFIC CONTROL SUPERVISOR

The Traffic Control Supervisor shall be certified as a Worksite Traffic Supervisor by the American Traffic

Safety Services Association (ATSSA) or Colorado Contractors Association (CCA). A copy of the Traffic

Control Supervisor's Certification shall be provided to the Project Manager at the project pre construction conference

3.29. TRAFFIC CONTROL DEVICES – SIGNS

Contractor shall be responsible for all permanent traffic control devices (signs) within the construction area. If permanent devices conflict with construction activities, Contractor shall be responsible for placement of temporary traffic control devices and the removal/reinstallation of permanent devices.

All work shall be in accordance with the Manual of Uniform Traffic Control Devices. All regulatory signs

(Stop, Yield, One Way, Do Not Enter, etc.) shall be maintained in either a temporary or permanent manner. Temporary devices shall be in place prior to the removal of permanent devices. Contractor shall be held fully responsible for any claims resulting from negligence in failing to act or maintain any traffic control device.

Contractor shall be responsible for maintaining the condition of any sign that is temporarily removed.

Should there be any damage to devices (signs, poles, bases, and hardware) Contractor shall be financially responsible to the City for replacement of said devices.

Contractor shall contact Traffic Maintenance at (719) 553-2300 for approval of the specific location in which the devices are to be reinstalled. Contractor shall obtain underground utility locates prior to reinstalling devices.

The Traffic Engineer or designee will evaluate existing signage for replacement with new materials. If required, the City will provide all replacement materials to the Contractor prior to reinstallation. Where new devices are required per the construction drawings all signs, posts, bases, and hardware shall be supplied by the City. Contractor shall contact the Traffic Engineer at (719) 553-2722 to order signs providing the City at least two-week notification to obtain the necessary material.

3.30. PRESERVATION OF HISTORIC STREET NAME CURB STAMPS

Older areas within the City may have street names stamped into the top of the concrete curb at street intersections where new curb ramps are to be constructed. Contractor shall preserve the portion of concrete curb with the historic street name and reinstall it behind the new curb and gutter.

Prior to any demolition, the Contractor shall verify if any street names are stamped in the existing curb head. If any street names exist the Contractor shall notify the Construction Inspector for documentation of the curb stamp and condition. If the condition of the existing concrete curb allows, the Contractor shall neatly saw cut the portion of curb containing the street name as needed to remove the portion intact. The Contractor shall reinstall the portion of curb with the street name directly behind the new curb and gutter adjacent to the new curb ramp.

3.31. PROTECTION OF CONCRETE FROM TRAFFIC AND VANDALISM

All concrete shall be protected from traffic for a period of fourteen (14) days, or as directed by the

Project Manager. The Contractor shall provide necessary supervision and/or barriers to protect all concrete from traffic or vandalism. Any concrete damaged by traffic and/or vandalism will be rejected.

Replacement of damaged concrete shall be paid for entirely by the Contractor.

3.32. ASPHALT AND CONCRETE REMOVAL

Asphalt and concrete shall be removed to the lines and grades established by the Project Manager. Any removal outside those lines and grades not approved by the Project Manager, will not be paid for by the

City. Contractor shall properly dispose of all removed items from the construction site.

Saw cutting to remove asphalt and concrete to a neat line shall not be paid for separately.

3.33. CURB AND GUTTER CONSTRUCTION AND PAYMENT

Contractor shall schedule their work to minimize the inconvenience to the public. Property owners shall be notified well in advance of any work that interferes with access to private driveways. Access to driveways shall be restored no later than fifteen (15) days after the concrete is placed.

Sections of curb and gutter shall not be considered for partial payment until backfill and restoration (if applicable) are completed.

The Contractor shall construct curb and gutter to match existing type (6” Std. 9”x30” pan, Roll top, etc.).

3.34. TACTILE BAND FOR CURB RAMPS

The base of the curb ramp area only shall include a Tactile Band. The Tactile Band shall be cast iron castings containing truncated domes. Castings shall meet the requirements of Americans with

Disabilities Act Accessibility Guidelines (ADAAG) for Accessible Public Rights-of-Way. Castings shall be cast-in-place truncated dome tactile system, Neenah R-4984, East Jordan Iron Works 7005, or approved equal at the sizes shown on the plans. Radial castings shall be East Jordan Iron Works 7006-20 (20’ radius), 7006-25 (25’ radius), 7006-30 (30’ radius) or approved equal.

3.35. EROSION AND SEDIMENT CONTROL

Contractor shall submit and comply with, an Erosion and Sediment Control Plan. This plan is considered incidental to the construction and shall not be paid for separately. Contractor shall take this into consideration in preparing their bid.

To comply with current state and federal permit regulations the City must meet minimum requirements for all construction sites less than one (1) acre to provide necessary Best Management Practices (BMPs) and prevent illicit discharges from the site. The minimum requirements which the Contractor must provide and comply with are as follows:

A. Provide an Erosion and Sediment Control Plan that shall include the minimum following items:

1. Stockpile BMPs protection.

2. Concrete washout BMPs.

3. Vehicle tracking control BMPs.

4. Site sediment containment BMPs.

5. Downstream secondary defense BMPs, if applicable.

6. Any additional BMPs required due to site specific conditions.

B. Prior to any construction, including site grading and excavation, an approved Erosion and

Sediment Control Plan shall be posted on site and all required BMPs installed.

C. Contractor shall maintain and update the Erosion and Sediment Control Plan as construction dictates. The current and correct plan shall remain on-site and be readily accessible to the City

Stormwater Inspector at all times.

D. Contractor or the Contractor’s representative shall, at a minimum, inspect the site every two (2) weeks and within twenty-four (24) hours of any precipitation or snowmelt event that causes surface erosion. (i.e., that results in stormwater running across the ground).

E. Contractor shall be responsible for maintaining all required BMPs to prevent erosion and sediment from leaving the construction site.

F. Failure to comply with the requirements to prevent illicit discharges from the construction site is unlawful and a municipal offense which may result in the issuance of a summons and complaint to the Pueblo Municipal Court. Persons who are convicted of violating any provision of the

Pueblo Municipal Code are subject to fines of up to one thousand dollars ($1,000) and/or one

(1) year imprisonment for each day the violation continues.

G. Information regarding acceptable BMPs and proper installation can be found in the Urban

Drainage and Flood Control District (UDFCD) Urban Storm Drainage Criteria Manual Volume 3, CDOT Erosion Control & Stormwater Quality Guide, and City of Pueblo approved details.

https://mhfd.org/resources/criteria-manual/ https://mhfd.org/resources/criteria-manual/ https://www.codot.gov/programs/environmental/water-quality/documents/erosion-storm-quality

3.36. PERMITS AND FEES

It shall be the Contractor’s responsibility to investigate and assess the requirements for all necessary environmental, drainage, and construction permits. The total cost of all permits or fees which may be required shall be included in the bid proposal. No additional payment shall be allowed for any permits or fees required to complete the project. Contractor shall comply with all conditions of the permits. City and/or other agency fines are the sole responsibility of the Contractor.

Following is a list of potential permits required for the project. Contractor shall be responsible for verifying this list and adding/obtaining any additional permits needed for the project.

• Air Quality Permit o Permitting Agency: Pueblo County/Colorado Department of Public Health and Environment o Responsibility to Obtain: Contractor

• CDPHE Stormwater Construction Permit o Permitting Agency: Colorado Department of Public Health and Environment o Responsibility to Obtain: Contractor

• Excavation Permit o Permitting Agency: City of Pueblo o Responsibility to Obtain: Contractor

• Concrete Permit o Permitting Agency: City of Pueblo o Responsibility to Obtain: Contractor

• Traffic Control Permit o Permitting Agency: City of Pueblo o Responsibility to Obtain: Contractor

• Fugitive Particulate Emissions Control Plan o Permitting Agency: Colorado Department of Public Health and Environment o Responsibility to Obtain: Contractor

3.37. ADVISING PROPERTY OWNERS OF CONSTRUCTION ACTIVITIES

The contractor shall prepare and hand deliver a door hanger of advisement for each business, residence or apartment unit that fronts on the street to be paved. The contractor shall be responsible for all printing costs. This notification shall be delivered and attached to the front doorknob of the inner door in conjunction with the placement of “NO PARKING” signs in the block such that a minimum 24-hours of advanced warning is given to the residents. Payment for all labor and materials for this item shall be included in the Traffic Control bid item. Separate door hangers shall be used to inform the property owners of additional road closures for each occurrence.

3.38. PLACE FLOW-FILL AND PAYMENT

The Contractor will be required to place 1’ of flow-fill in all trenches located in the road of the City of

Pueblo's Right-of-Way and 2' in the road of Colorado Department of Transportation's Right-of-Way.

Payment for this item shall be based upon cubic yards of flow-fill placed from center of manhole to center of manhole or end of length in street in the Colorado Department of Transportation’s (CDOT)

Right-of-Way. Delivery tickets must be submitted with invoice for payment of flow-fill.

Flow-fill placed in CDOT’s Right-of-Way shall conform to Section 206 of CDOT’s Standard Specification

Provision.

3.39. ASPHALT PAVING SCHEDULE

Asphalt paving MUST commence no later than 3 working days after TV inspection acceptance. Paving is to be carried out continuously until completed. This is to prevent extra moisture from being introduced into the properly compacted materials that could be detrimental to the future quality of the trench. The

Contractor shall be responsible for the maintenance of any partially constructed street at all times. In the event that the Contractor is unable to construct the bituminous plant mix pavement during inclement weather, Contractor shall maintain said partially constructed streets to the satisfaction of the

Engineer in accordance with Article 14 – Excavation Within Public Right of Way, Section 14.3.10, Hot

Bituminous Pavement or Concrete Unavailable or Inclement Weather on Completion of Backfill and

Section 14.3.11, Replacement of Temporary Asphalt Surface.

3.40. BYPASS PUMPING

The “bypass pumping” pay item shall include all costs incurred with ensuring the raw sewage from the upstream line is redirected past the line which is to be rehabilitated, which includes but is not limited to, removing and replacing the cone section of the manhole, backfill, flowfill, asphalt, etc.

The Contractor shall submit a plan for handling existing sewage flows while rehabilitating the pipe at the pre-construction meeting for approval by the City. The bypass plan must be designed in accordance with the approved traffic control plans. Precautions must be taken to ensure that sewage flow control operations do not cause damage to property being served by the sewers involved. At no time shall raw wastewater run freely through any open ditch where point repairs are to be made. The only exception is during a service line reconnection. There must be a hard tie from the rehabilitated pipe to the existing pipe during non-working hours.

The Contractor shall be responsible to obtain existing flows in all mains that will be affected by bypass to determine a bypass plan.

If the City must provide personnel and equipment to minimize damages, in the event of any failure of the Contractor’s sewage flow control operations, the Contractor shall be liable for all costs incurred by the City. The Contractor will be charged on a time and materials basis for this work, which will be deducted from the amount of the Contractor’s final payment.

Payment for this item shall be paid by the lump sum for the entire project.

3.41. CALCIUM ALUMINATE COATING

All surfaces that show exposed structural steel, spalling greater than 3/4” deep, cracks greater than 3/8” wide or infiltration of groundwater shall be patched using calcium aluminate. The Engineer will determine what manholes require patching after cleaning. Remove any sharp edges or rough sections that would snag hose or power lines. The surface shall be smooth and free of any deformities. Any and all costs associated with preparing the surface for calcium aluminate patching shall be included in the line item for calcium aluminate coating.

Calcium aluminate patching shall conform to the following performance testing:

• Compressive Strength, 28-day o Method: ASTM C109 o Results: 9,000 psi

• Flexural Strength, 28-day o Method: ASTM C293 o Results: 1,000 psi

• Bond Strength, 28-day o Method: ASTM C882 o Results: 2,000 psi

• Freeze-Thaw Durability o Method: ASTM C666 o Results: No visible damage after 300 cycles

• Shrinkage at 95% Humidity, 28-day o Method: ASTM C596 o Results: 0%

• Sulfide Resistance o Method: ASTM C267 o Results: No attack

Testing will be performed on an as needed basis at the discretion of the Engineer.

If manhole patching exceeds 3/4” thick, additional patching may be paid under the “Additional Calcium Aluminate Coating” line item. The Contractor is responsible to inspect the manhole prior to bidding to determine the severity of deterioration. The Engineer must provide written authorization before additional manhole patching begins. Any additional patching performed that is not approved by the Engineer, will not be paid for by the City.

Payment for this item shall be by the vertical foot calcium aluminate coating which is placed, tested and accepted as measured in the field. Measurement shall be from the invert of the manhole to the top rim of the manhole.

3.42. EPOXY COATING

The interior surface of the manholes will be coated with Raven Lining Systems, Raven® 405, 100% solid, self-priming, ultra-high build epoxy applied to a minimum thickness of 125 mils with an airless spray gun applicator. To insure a 125 mils thickness, a wet film thickness gage shall be used to verify thickness during the application process. A micro-gauge may be used after application to ensure no shrinkage has occurred after the curing process. The contractor may have an ultrasound on hand to show thickness is being met.

Apply epoxy coating in accordance with manufacturer’s instructions. The epoxy coating shall completely cover all manhole walls and bases to the low flow of the pipe to ensure a seal from outside water sources.

The Contractor shall sawcut a line, “key”, between the metal frame and concrete of the manhole wall. The finished surface on all components of the manhole will be smooth and free of sags, ridges, skips, voids, and pinholes. Epoxy coating shall conform to the following performance testing.

• Flexural Strength o Method: ASTM d790 o Results: 13,000 psi

• Compressive Strength o Method: ASTM D695 o Results: 18,000 psi

• Tensile Strength o Method: ASTM D638 o Results: 7,600 psi

• Tensile Ultimate Elongation o Method: ASTM D638 o Results: 1.5%

• Hardness, Shore D o Method: ASTM D2240 o Results: 85-89

• Taber Abrasion, CS17 Wheel o Method: ASTM D4060, 1000g load/1000 cycles o Results: <112mg loss

• Adhesion o Method: ASTM D4541, Concrete o Results: Substrate Failure (>250 psi) o Adhesion Mode of Failure shall be by Substrate Failure mode only with an adhesion value 250psi and greater. Mode of failure categorized as "Glue Failure or Adhesive Failure Y/Z" below the minimum PSI specified shall be cause for retesting. Mode of failure as noted in ASTM

D4541Section 8.3.1 thru 8.3.3/ASTM D7234 Section 9.3.1 thru 9.3.4 categorized as Adhesive A/B, B/C, C/D etc. or Cohesive B, C, D etc. shall be cause for rejection.

A manhole coating form must be submitted for each manhole. The form must be submitted at the Pre- Construction Conference for approval. The Contractor may elect to use a form provided by the City of Pueblo.

All surface preparation and coating application processes shall be documented on a submitted and approved Coating Inspection Report by the contractor. This report shall be submitted to the engineer within one week of completion of testing or as directed by the owner for review of application process. The coating inspection report shall document all inspection activities performed including but not limited to, project identification, atmospheric conditions at time of surface preparation and coating application, coating material, coating batch numbers, coating temperature requirements, pump pressures, etc.

Payment for this item shall be by the vertical foot epoxy coating which is placed, tested, and accepted as measured in the field. Measurement shall be from the invert of the manhole to the top rim of the manhole. Payment will only made after manhole forms have been submitted and approved.

3.43. EPOXY COATING TESTING

After the epoxy coating has cured, it shall be inspected and tested per NACE SP0188 and ASTM D4787 specifications.

Holiday Testing:

Every manhole shall be tested using a high voltage holiday detection equipment (spark tester). An induced holiday shall be made into the coated concrete surface and shall serve to determine the minimum/maximum voltage to be used to test the coating for holidays at that particular area. The spark tester shall be initially set per manufacturer’s specification but may be increased per ASTM D4787 specification to the number of mils being applied, if it is insufficient to detect the induced holiday. All detected holiday shall be marked and repaired per the manufacturer’s recommendations.

The Contractor shall submit test results to the Engineer no later than 1 week after testing the epoxy coating. Approved test results shall include test results, date tested, location of test and shall be signed by the inspector. No payment shall be made for any manhole prior to manhole forms being submitted.

A failed manhole will have 2 or more sparks in a single vertical foot. Any pinholes, thin areas, or any other imperfections identified by the holiday test will require a repair per manufacturer’s specifications.

Adhesion Testing:

The Contractor shall conduct adhesion testing in accordance with ASTM D4541 and D7234. Three-20mm dollies will be placed on bottom, middle and top of manhole. Prepare dollies with a 3,500-psi strength 24 -hour adhesive and score around the dolly for the testing process. If results fail to meet results in the table found in Epoxy Coating Table, the test will be considered failed. If two out of three tests fail, additional tests will be performed. Testing will include 25% of the manholes in the Project picked at random. During the testing, if more than 50% of manholes fail of those initially tested, ALL manholes in the Project will be subject to testing or as directed by the Engineer. If subsequent tests fail all manholes could be considered unacceptable and will be subject to removal and reapplication of epoxy. The Contractor shall repair all test sites after adhesion tests have been performed. No additional cost to the project will be paid to perform all adhesion tests and epoxy coating patch due to testing. A Type V automatic self-aligning adhesion tester shall be used per ASTM 4541 specifications.

3.44. CALCIUM ALUMINATE COATING

All surfaces that show exposed structural steel, spalling greater than 3/4” deep, cracks greater than 3/8” wide or infiltration of groundwater shall be patched using calcium aluminate. The Engineer will determine what manholes require patching after cleaning. Remove any sharp edges or rough sections that would snag hose or power lines. The surface shall be smooth and free of any deformities. Any and all costs associated with preparing the surface for calcium aluminate patching shall be included in the line item for calcium aluminate coating.

Calcium aluminate patching shall conform to the following performance testing:

• Compressive Strength, 28-day o Method: ASTM C109 o Results: 9,000 psi

• Flexural Strength, 28-day o Method: ASTM C293 o Results: 1,000 psi

• Bond Strength, 28-day o Method: ASTM C882 o Results: 2,000 psi

• Freeze-Thaw Durability o Method: ASTM C666 o Results: No visible damage after 300 cycles

• Shrinkage at 95% Humidity, 28-day o Method: ASTM C596 o Results: 0%

• Sulfide Resistance o Method: ASTM C267 o Results: No attack

Testing will be performed on an as needed basis at the discretion of the Engineer.

If manhole patching exceeds 3/4” thick, additional patching may be paid under the “Additional Calcium

Aluminate Coating” line item. The Contractor is responsible to inspect the manhole prior to bidding to determine the severity of deterioration. The Engineer must provide written authorization before additional manhole patching begins. Any additional patching performed that is not approved by the

Engineer, will not be paid for by the City.

Payment for this item shall be by the vertical foot calcium aluminate coating which is placed, tested and accepted as measured in the field. Measurement shall be from the invert of the manhole to the top rim of the manhole.

3.45. EPOXY COATING

The interior surface of the manholes will be coated with 100% solid, self-priming, ultra-high build epoxy applied to a minimum thickness of 125 mils with an airless spray gun applicator. To insure a 125 mils thickness, a wet film thickness gage shall be used to verify thickness during the application process. A micro-gauge may be used after application to ensure no shrinkage has occurred after the curing process.

The contractor may have an ultrasound on hand to show thickness is being met. Apply epoxy coating in accordance with manufacturer’s instructions. The epoxy coating shall completely cover all manhole walls and bases including inverts to ensure a seal from outside water sources. The finished surface on all components of the manhole will be smooth and free of sags, ridges, skips, voids, and pinholes. Epoxy coating shall conform to the following performance testing.

• Flexural Strength o Method: ASTM d790 o Results: 13,000 psi

• Compressive Strength o Method: ASTM D695 o Results: 18,000 psi

• Tensile Strength o Method: ASTM D638 o Results: 7,600 psi

• Tensile Ultimate Elongation o Method: ASTM D638 o Results: 1.5%

• Hardness, Shore D o Method: ASTM D2240 o Results: 85-89

• Taber Abrasion, CS17 Wheel o Method: ASTM D4060, 1000g load/1000 cycles o Results: <112mg loss

• Adhesion o Method: ASTM D4541, Concrete o Results: Substrate Failure (>250 psi)

A manhole coating form must be submitted for each manhole. The form must be submitted at the Pre-

Construction Conference for approval. The Contractor may elect to use a form provided by the City of

Pueblo. All surface preparation and coating application processes shall be documented on a submitted and approved Coating Inspection Report by the contractor. This report shall be submitted to the engineer on a weekly basis or as directed by the owner for review of application process. The coating inspection report shall document all inspection activities performed including but not limited to, project identification, atmospheric conditions at time of surface prep and coating application, coating material, coating batch numbers, coating temperature requirements, pump pressures, etc.

3.46. EPOXY COATING TESTING

After the epoxy coating has set it shall be inspected and tested per NACE SP0188 and ASTM D4787 specifications.

Holiday Testing:

Every manhole shall be tested using a high voltage holiday detection equipment (spark tester). An induced holiday shall be made into the coated concrete surface and shall serve to determine the minimum/maximum voltage to be used to test the coating for holidays at that particular area. The spark tester shall be initially set per manufacturer’s specification but may be increased per ASTM D4787 specification to the number of mils being applied, if it is insufficient to detect the induced holiday. All detected holiday shall be marked and repaired per the manufacture’s recommendations.

The Contractor shall submit test results to the Engineer no later than 1 week after testing the epoxy coating. Approved test results shall be submitted in a memo, drafted by the Contractor to include test results, date tested, location of test and shall be signed by the inspector.

A failed manhole will have 2 or more sparks in a single vertical foot. Any pinholes, thin areas, or any other imperfections identified by the holiday test will require a repair per manufacturer’s specifications.

Adhesion Testing:

The Contractor shall conduct adhesion testing in accordance with ASTM D4541 and D7234. Three-20mm dollies will be placed on bottom, middle and top of manhole. Prepare dollies with a 3,500-psi strength

24 -hour adhesive and score around the dolly for the testing process. If results fail to meet results in the table found in Section 2.39, the test will be considered failed. If two out of three tests fail, additional tests will be performed. Testing will include 25% of the manholes in the Project picked at random.

During the testing, if more than 50% of manholes fail of those initially tested, ALL manholes in the

Project will be subject to testing. If subsequent tests fail all manholes could be considered unacceptable and will be subject to removal and reapplication of epoxy. The Contractor shall repair all test sites after adhesion tests have been performed. No additional cost to the project will be paid to performall adhesion tests and epoxy coating patch due to testing.

3.47. REBUILD MANHOLE BENCH AND TROUGH WITH FAST-SETTING

CEMENTITIOUS MATERIAL

The Contractor shall rebuild manhole troughs and bases wherever noted in the plans with a cementitious material that can be epoxy coated. Rehab shall include manhole bases and inverts. The manhole inverts shall have a smooth transition to ensure an unobstructed flow. The contractor shall remove any sharp edges or rough sections that tend to obstruct flow. The surface shall be smooth and free of any deformities. The contractor shall repair inverts and benches with visible damage and where inflow and infiltration are present and form a watertight seal with manhole walls, base and pipe. Fast-

Setting cementitious material shall conform to the following performance testing:

• Compressive Strength, 28-day o Method: ASTM C109 o Results: 9,000 psi

• Flexural Strength, 28-day o Method: ASTM C293 o Results: 1,000 psi

• Bond Strength, 28-day o Method: ASTM C882 o Results: 2,000 psi

• Freeze-Thaw Durability o Method: ASTM C666 o Results: No visible damage after 300 cycles

• Shrinkage at 95% Humidity, 28-day o Method: ASTM C596 o Results: 0%

• Sulfide Resistance o Method: ASTM C267 o Results: No attack

Testing of this area will be performed on an as needed basis at the discretion of the Engineer and

Inspector. The Contractor is responsible to inspect the manhole prior to bidding to determine the severity of deterioration. Any additional patching of rehabilitated areas must have written authorization by the Engineer before any such work begins.