APA_Rehabilitate Taxiways C and D_Addendum One.pdf

CENTENNIAL AIRPORT

AIP 3-08-0029-061-2024, 0XX-2025, 0XX-2026

REHABILITATE TAXIWAYS C AND D

ADDENDUM NUMBER ONE

CENTENNIAL AIRPORT

AIP 3-08-0029-061-2024, 0XX-2025, 0XX-2026

REHABILITATE TAXIWAYS C AND D

ADDENDUM NUMBER ONE

March 15, 2024

GENERAL

1. An updated electronic proposal form titled Addendum #1 has been uploaded to the bidnet website. Please only use this form for bidding.

2. Electronic CAD files with existing ground and proposed design surfaces will be provided to interested bidders. The CAD Release form attached in this Addendum #1 must be filled out by interested bidders and emailed to Jacobs, Molly McGuire (molly.mcguire@jacobs.com) and Kristie Wilson (kristie.wilson@jacobs.com) to receive the CAD files.

3. A list of prebid attendees is attached.

4. The Quality Acceptance (QA) testing firm under contract with JACOBS is Ninyo & Moore. The Contractor may not use this firm for Quality Control (QC) testing.

5. The Quality Acceptance (QA) surveying firm will be completed in-house by JACOBS. The Contractor may not use this firm for Quality Control (QC) survey.

6. Additional geotechnical report included in this Addendum #1 for Taxilane C2 and Taxiway S3.

CONTRACTOR QUESTIONS

1. Question: The total bid quantities between Schedule II and Schedule III are 33 signs. The sign schedule has 34 signs. What is correct?

Response: See revised Sheets TD-EL104 and TD-EL505. Sign S3-6 should not be included in the sign schedule. The total bid quantities between Schedule II and Schedule III should be 33 signs.

2. Question: 7 signs are on Schedule II (Taxiway S3) - (1) 2 mod and (6) 3 mods. I am having some trouble figuring out what signs are on Schedule II so I went to the Electrical Layout plans to Sheet 99 (area around Txy S3). That area shows 8 signs (2) 2 mods and (6) 3 mods. My guess is that those signs (#s S-02, S-03, S3-1, S3-2, S3-3, S3-4, S3-5, S3-6) are all on Schedule II bid.

Am I remotely close on this?

Response: See revised Sheet TD-EL505 for clarification regarding the breakout of signs between Schedules II and III. There should be (1) 2 mod and (6) 3 mod signs for Schedule II which include signs S-02, S-03, S3-1, S3-2, S3-3, S3-4, and S3-5.

3. Question: Are there any CAD or cross sections available?

Response: Surfaces to be provided following submission of a signed release form included in this Addendum #1.

4. Question: Are there any PFAS contaminated soils on-site?

REHABILITATE TAXIWAYS C AND D

ADDENDUM NUMBER ONE

Response: None anticipated.

5. Question: How does the pond restrictor plate get paid for? Under what Schedule and Bid Item?

Response: Install Restrictor Plate in ARFF Pond Outlet Structure will be measured and paid for as each under specification D-701 Pipe for Storm Drains and Culverts in Schedule I Rehabilitate Taxiways C and D (Federal). The bid proposal form (.xls) has been updated to show this item and is provided in this Addendum #1.

6. Question: In Schedule V there is Bid Item P-101-5.4 Crack Repair by the SY. Can you please confirm that this is the correct unit of measure for this bid item.

Response: P-101-5.4 Crack Repair shall be measured and paid for as linear foot.

7. Question: Is the 2025 Mobilization/Remobilization schedule only if work occurs in 2025?

Response: No, this schedule of work will be awarded if any work occurs in 2025. If the funding is not awarded in time for all of the work to be completed in the 2024 calendar year, the schedule will be awarded. If the funding is not awarded in time for any of the work to be completed in 2024, the schedule will be awarded. No escalation is permitted on the federally funded project.

8. Question: Are all millings being used on the project?

Response: No, excess millings shall be hauled offsite. Excess millings hauled off site will be paid for under P-101. Update made under this Addendum #1.

9. Question: Where is the location of the Control Strip?

Response: The P-401 Control Strip will be at a location identified by the Airport. At this time, it is anticipated to be along Taxiway C adjacent to the project limits. The Control Strip will be 2-inch mill and overlay. The Control Strip must be passing and approved prior to the start of construction.

10. Question: Can phases occur concurrently?

Response: No.

11. Question: Will Taxiway D be raised if Taxiway S3 is not awarded?

Response: No. All associated costs to raise Taxiway D are in Schedule II. If Schedule II is not awarded, the Airport will determine how to move forward with the profile of Taxiway D.

12. Question: If Schedule IV: Reconstruct Taxilane C2 is not awarded, will the concrete encased underdrain crossing still be constructed?

Response: No.

13. Question: Can Taxiway D Phase 2 occur after Phase 1?

REHABILITATE TAXIWAYS C AND D

ADDENDUM NUMBER ONE

Response: Yes. The Airport would prefer Taxiway D Phase 2 occur after Phase 1. Additionally, Phase 1 will be utilizing the Taxiway D staging area and access point.

14. Question: Is the excavation that will occur for millings placement paid for under unclassified excavation?

Response: Yes.

15. Question: Is there percent of cement used for bidding purposes?

Response: Yes, 5%. The Contractor shall complete final mix design to determine amount of cement needed to achieve required strength. Cement is paid for per tonnage. So actual amount needed for construction will be paid for per ton.

16. Question: Is grade control required for milling?

Response: Grade control is strongly encouraged on the mill to achieve the required 4-inch thickness from final grade while meeting grade and lift thickness requirements outlined in P-401.

Additional asphalt that exceeds the thickness tolerances will not be paid for unless additional milling or additional depth is directed by the RPR. Additionally, if not enough asphalt is milled to achieve the minimum 4-inch thickness and meet final grade requirements, the Contractor will be required to rectify.

17. Question: What is the assumed CTS cure time?

Response: CTS cure time is assumed to be 7 calendar days. This may be reduced if the Contractor can show that strength is met prior.

18. Question: Can alternate asphalt be used for patching and type 2 crack repair?

Response: No. P-401 mix will be the only approved asphalt mix for the project. All material shall meet P-401 requirements.

19. Question: Do Change Orders require federal approval?

Response: Any Change Orders that occur on this project on federal portions of work will require federal approval.

20. Question: Can Taxiway D and Taxiway C staging areas be accessed on the Airport or will the Contractor be required to go around the Airport to access each site?

Response: The Contractor will be required to access each site from the street-side as shown on the Access Plan. There is not a connection between the two staging areas on the Airport.

21. Question: Is there a curb cut shown for the work off Liberty Blvd?

Response: No curb cut is shown for the millings road of Liberty Blvd.

22. Question: For the Temporary Electrical Jumpers plan page GC006 Note 2 on Electrical Phasing notes States to install jumpers as per plan pages GC105 & GC106, these plans are not shown on

REHABILITATE TAXIWAYS C AND D

ADDENDUM NUMBER ONE

the PDF drawing we have. There is one jumper shown on plan page GC104, could you please let us know how many jumpers are required for this work.

Response: Change “Sheets GC105 and GC106” to “Sheet GC104”. Jumper shown on Sheet GC104 is the only one required as part of this project.

CONTRACT DOCUMENTS AND SPECIFICATIONS

1. SPECIFICATION P-101 PREPARATION/REMOVAL OF EXISTING PAVEMENTS

ADD Item 101-5.18 Excess Milling (Haul Off-Site) per cubic yard to Method of Measurement and Basis of Payment sections.

MODIFY Item 101-5.10 to removal of Asphalt Millings (Haul Off-Site) per square yard.

2. SPECIFICATION D-701 PIPE FOR STORM DRAINS AND CULVERTS

ADD Item 701-5.7 Install Restrictor Plate in ARFF Pond Outlet Structure per each to Method of Measurement and Basis of Payment sections.

CONTRACT DRAWINGS

1. ALL SHEETS – Update AIP Project Numbers to read: AIP 3-08-0029-061-2024, 0XX-2025, and 0XX-2026. BIL 060-2024 previously shown project number on all project documents will not be used for funding on this project. The number has been removed and place holder funding project numbers have replaced. All sheets moving forward with show this update.

2. PLAN SHEET: GC001 OVERALL PROJECT SITE PLAN

REPLACE Drawing GC001 dated February 28, 2024, with Drawing GC001 dated March 15, 2024. Modify note references for Phase 1 and Phase 3 in the Contract Time and Liquidated Damages table.

3. PLAN SHEET: GC006 OVERALL PHASING PLAN

REPLACE Drawing GC006 dated February 28, 2024, with Drawing GC006 dated March 15, 2024. Change electrical note 2 to “Sheets GC105 and GC106” to “Sheet GC104”.

4. PLAN SHEET: TD-EL104 TAXIWAY D ELECTRICAL LIGHTING PLAN

REPLACE Drawing TD-EL104 dated February 28, 2024, with Drawing TD-EL104 dated March 15, 2024. Removed Sign S3-6.

5. PLAN SHEET: TD-EL505 TAXIWAY D ELECTRICAL DETAILS

REPLACE Drawing TD-EL505 dated February 28, 2024, with Drawing TD-EL505 dated March 15, 2024. Removed Sign S3-6 and indicated what signs are required for Schedule II.

Total Pages of Addendum Number One with Enclosures – 81 pages and a revised Addendum One Proposal Form excel spreadsheet.

Your acknowledgment that these clarifications/revisions have been incorporated must be noted in the PROPOSAL submitted with your bid.

END OF ADDENDUM NUMBER ONE

CAD / BIM Release

CAD / BIM Release 1

The Data and Consideration. For and in consideration of the provision by Jacobs of electronic data on the project known as Rehabilitate Taxiways C and D at Centennial Airport, at the request of, and for the sole use and convenience of Recipient, the Recipient agrees to the terms of this CAD/BIM Release.

Accuracy of Data. Jacobs makes no warranties regarding the level of completion, accuracy, or sufficiency of the Data. Recipient specifically assumes the risk of all errors in the transfer of the Data and undertakes the sole responsibility to verify the Data against the written documentation representing the Data maintained by Jacobs, and/or which Recipient may have a copy. In the event Recipient discovers any discrepancy between the Data and the written documentation representing the Data, Recipient shall timely notify Jacobs of such discrepancy.

RECIPIENT RELEASES JACOBS AND OWNER FROM ANY AND ALL CLAIMS, DAMAGES, OR LIABILITIES

ARISING OUT OF ITS USE OF THE DATA. THIS RELEASE SHALL APPLY REGARDLESS OF THE FAULT, BREACH OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY, OR OTHERWISE OF

JACOBS, ITS EMPLOYEES OR SUBCONSULTANTS.

Use of the Data. Recipient may only use the Data for its sole purposes on the Project, and not for any other use. Recipient may not transfer the Data to another person or entity without Jacobs’ written consent.

Indemnity. To the fullest extent permitted by law, Recipient agrees to defend, indemnify and save harmless Jacobs and the Owner, and the directors, officers and employees of each of them (the

“Indemnitees”) against any and all losses, damages, compensations, claims, demands, suits, judgments, and expenses (including court costs and attorney’s fees) that arise out of Recipient’s use of the Data.

Confidential Information. Recipient hereby agrees to maintain and protect the Data in strictest confidence. Recipient agrees that it will not, at any time, disclose to others, use for its own benefit or otherwise appropriate or copy the Data. Recipient agrees to comply with and be bound by the terms of any confidentiality provision contained in Jacobs’s Contract with the Owner. In the event Recipient is served with legal process requesting the Data, Recipient shall give prompt written notice of such request

(which in any event shall allow Jacobs sufficient time to intervene and potentially seek an order of protection on the Data).

Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the

State where the Project is located.

IN WITNESS WHEREOF and intending to be legally bound hereby, Recipient has caused this

Release to be duly executed.

Recipient

Company Name: ____________________________

By: _______________________________________

Printed Name and Title: _______________________

Date: ___________________

Centennial Airport

BIL NO. 3-08-0029-60-2024

AIP NO. 3-08-0029-061-2024

Rehabilitate Taxiways C and D

Pre-Bid Attendees

Name Company Phone Email

Molly McGuire Jacobs 720-286-1859 molly.mcguire@jacobs.com

Lorie Hinton ACPAA 303-790-0598 lhinton@centennialairport.com

Lauren Wiarda ACPAA - -

Jeremy Gunn ACPAA - -

Mike Dierks Pyramid Construction 714-291-6886 mdierks@pyramidconstructioninc.com

Josh Reinhard Electrical Excellence 720-587-7210 josh@einc.co

Robert Melanson Electrical Excellence 719-659-1971 Robert@einc.co

Kyle O'Neill Kiewit 402-253-6033 Kyle.Oneill@kiewit.com

Matt Woodall Kiewit 303-981-4665 matthew.woodall@kiewit.com

Geoff Pickard Holcim 702-859-2573 geoffrey.pickard@holcim.com

Tim Alley Holcim 720-365-5853 timothy.alley@holcim.com

Cory Allington Capitol 970-310-4209 callington@capitolteams.com http://www.novapdf.com/

Centennial Airport

BIL NO. 3-08-0029-60-2024

AIP NO. 3-08-0029-061-2024

Rehabilitate Taxiways C and D

Pre-Bid Attendees

Name Company Phone Email

Robert Strickland ATCO Office Trailers 720-229-9273 robert.strickland1@atco.com

Paul Kim WW Clyde 720-651-1294 pkim@wwclyde.com

Seth Flutcher Brannan Sand & Gravel 303-435-8881 sflutcher@brannan1.com, jbriar@brannan1.com

Greg Simmons Asphalt Specialties 303-289-8555 gregs@asphaltspecialties.com

Cesar Gouzarez ABC Asphalt 720-621-9815 cesar@abcasphaltco.com

David Martinez Denver Pro Concrete 303-775-7522 denverproconcrete@gmail.com http://www.novapdf.com/

FAA ISSUE DATE: 12/21/2018 AC 150/5370-10H

Item P-101 Preparation/Removal of Existing Pavements P-101-1

Item P-101 Preparation/Removal of Existing Pavements

DESCRIPTION

101-1 This item shall consist of preparation of existing pavement surfaces for overlay, surface treatments, removal of existing pavement, and other miscellaneous items. The work shall be accomplished in accordance with these specifications and the applicable plans.

EQUIPMENT AND MATERIALS

101-2 All equipment and materials shall be specified here and in the following paragraphs or approved by the Resident Project Representative (RPR). The equipment shall not cause damage to the pavement to remain in place.

CONSTRUCTION

101-3.1 Removal of existing pavement.

The Contractor’s removal operation shall be controlled to not damage adjacent pavement structure, and base material, cables, utility ducts, pipelines, or drainage structures which are to remain under the pavement.

a. Concrete pavement removal. Not used.

b. Asphalt pavement removal. Asphalt pavement to be removed shall be cut to the full depth or depth specified on the plans of the asphalt pavement around the perimeter of the area to be removed. Asphalt pavement removal shall be completed by cold milling to meet standards specified in section 101-3.5.

c. Repair or removal of Base, Subbase, and/or Subgrade. All failed material including surface, base course, subbase course, and subgrade shall be removed and repaired as shown on the plans or as directed by the RPR. Materials and methods of construction shall comply with the applicable sections of these specifications. Any damage caused by Contractor’s removal process shall be repaired at the Contractor’s expense.

101-3.2 Preparation of joints and cracks prior to overlay/surface treatment. Remove all vegetation and debris from cracks to a minimum depth of 1 inch If extensive vegetation exists, treat the specific area with a concentrated solution of a water-based herbicide approved by the RPR.

1) Type 1 Crack Repair. Type 1 crack repair will be required where a crack less than 1/2-inch-wide remains after milling in areas that will be overlaid with asphalt concrete. All cracks less than 1/2 inch in bituminous pavements to be overlaid with asphaltic concrete shall be cleaned of joint and crack sealer, debris, and vegetation. Any excess joint or crack sealer on the surface of the pavement shall also be removed from the pavement surface. If vegetation is a problem a soil sterilant shall be applied.

Cracks and joints less than 1/2 inch shall be filled with a mixture of asphalt and aggregate fines and hand raked into the crack.

2) Type 2 Crack Repair. Type 2 crack repair will be required where a crack greater than 1/2-inch-wide, and less than 2 inches wide remains after milling in areas that will be overlaid with asphalt concrete.

Item P-101 Preparation/Removal of Existing Pavements P-101-2

The area around the crack will be milled to a 2-inch depth for a minimum of 12 inches on either side of the crack. The crack shall be cleaned and filled with self-leveling mastic per manufacturer’s specification. Two inches of asphalt shall be paved back over crack. A pavement reinforcement grid, meeting the requirements of paragraph 101-3.2.b.(1), will be adhered to the top of the asphalt course prior to paving the remaining 4 inch overlay. Crack repair shall be completed prior to the overlay.

(1) Pavement Reinforcing Grid. Pavement reinforcing grid shall have a minimum tensile strength of 1,120 pounds per inch across the width and 560 pounds per inch across the length. The material shall have an elongation at break no greater than 3 percent. The melting point shall be a minimum of 450oF. Pavement reinforcement grid shall be minimum of 4-inches below the proposed finished surface. Pavement reinforcement gid shall be considered incidental to the respective repair.

101-3.3 Removal of Foreign Substances/contaminates prior to seal coat and remarking. Removal of foreign substances/contaminates from existing pavement that will affect the bond of the new treatment shall consist of removal of rubber, fuel spills, oil, crack sealer, at least 90% of paint, and other foreign substances from the surface of the pavement. Areas that require removal are designated on the plans and as directed by the RPR in the field during construction.

High-pressure water shall be used. Removal methods used shall not cause major damage to the pavement, or to any structure or utility within or adjacent to the work area. Major damage is defined as changing the properties of the pavement, removal of asphalt causing the aggregate to ravel, or removing pavement over

1/8 inch deep. If it is deemed by the RPR that damage to the existing pavement is caused by operational error, such as permitting the application method to dwell in one location for too long, the Contractor shall repair the damaged area without compensation and as directed by the RPR.

Removal of foreign substances shall not proceed until approved by the RPR. Water used for high-pressure water equipment shall be provided by the Contractor at the Contractor's expense. No material shall be deposited on the pavement shoulders. All waste shall be disposed of in areas indicated in this specification or shown on the plans.

101-3.4 Concrete spall repair.

a. Repair of concrete spalls. The Contractor shall repair all spalled concrete as shown on the plans or as directed by the RPR. The perimeter of the repair shall be saw cut a minimum of 2 inches outside the affected area and 2 inches deep. The deteriorated material shall be removed to a depth where the existing material is firm or cannot be easily removed with a geologist pick. The removed area shall be filled with asphalt mixture with aggregate sized appropriately for the depth of the patch. The material shall be compacted with equipment approved by the RPR until the material is dense and no movement or marks are visible. The material shall not be placed in lifts over 4 inches in depth.

All epoxy-resin materials shall be two-component materials conforming to the requirements of ASTM

C881, Class as appropriate for each application temperature to be encountered, except that in addition, the materials shall meet the following requirements:

a. Material for use as patching materials for complete filling of spalls and other voids and for use in preparing epoxy resin mortar shall be Type III, Grade as approved.

b. Material for use for injecting cracks shall be Type IV, Grade 1.

c. Material for bonding freshly mixed Portland cement concrete or mortar or freshly mixed epoxy resin concrete or mortar to hardened concrete shall be Type V, Grade as approved.

b. Asphalt pavement repair. Not used.

101-3.5 Cold milling. Milling shall be performed with a power-operated milling machine or grinder, capable of producing a uniform finished surface. The milling machine or grinder shall operate without

Item P-101 Preparation/Removal of Existing Pavements P-101-3 tearing or gouging the underlaying surface. The milling machine or grinder shall be equipped with grade and slope controls, and a positive means of dust control. All millings shall be removed and disposedplaced in areas designated on the plans. Millings in excess of that required for placement in designated areas shall be properly disposed of off Airport property. If the Contractor mills or grinds deeper or wider than the plans specify, the Contractor shall replace the material removed with new material at the Contractor’s expense. Maximum particle size of asphalt millings shall be 2-inches in diameter when tested per ASTM C136.

a. Patching. The milling machine shall be capable of cutting a vertical edge without chipping or spalling the edges of the remaining pavement and it shall have a positive method of controlling the depth of cut. The RPR shall layout the area to be milled with a straightedge in increments of 1-foot widths. The area to be milled shall cover only the failed area. Any excessive area that is milled because the Contractor doesn’t have the appropriate milling machine, or areas that are damaged because of his negligence, shall be repaired by the Contractor at the Contractor’s expense.

b. Profiling, grade correction, or surface correction. The milling machine shall have a minimum width of 7 feet and it shall be equipped with electronic grade control devices that will cut the surface to the grade specified. The tolerances shall be maintained within +0 inch and -1/4 inch of the specified grade. The machine must cut vertical edges and have a positive method of dust control. The machine must have the ability to remove the millings or cuttings from the pavement and load them into a truck. All millings shall be removed and disposed of in areas designated on the plans. Excess millings produced but not required for placement in designated areas shall be properly disposed of off Airport property.

c. Clean-up. The Contractor shall sweep the milled surface daily and immediately after the milling until all residual materials are removed from the pavement surface. Prior to paving, the Contractor shall wet down the milled pavement and thoroughly sweep and/or blow the surface to remove loose residual material. Waste materials shall be collected and removed from the pavement surface and adjacent areas by sweeping or vacuuming. Waste materials shall be removed and disposed of off Airport property.

101-3.6. Preparation of asphalt pavement surfaces prior to surface treatment. Existing asphalt pavements to be treated with a surface treatment shall be prepared as follows:

Clean pavement surface immediately prior to placing the surface treatment so that it is free of dust, dirt, grease, vegetation, oil or any type of objectionable surface film.

101-3.7 Maintenance. The Contractor shall perform all maintenance work necessary to keep the pavement in a satisfactory condition until the full section is complete and accepted by the RPR. The surface shall be kept clean and free from foreign material. The pavement shall be properly drained at all times. If cleaning is necessary or if the pavement becomes disturbed, any work repairs necessary shall be performed at the Contractor’s expense.

101-3.8 Preparation of Joints in Rigid Pavement prior to resealing. Prior to application of sealant material, clean and dry the joints of all scale, dirt, dust, old sealant, curing compound, moisture and other foreign matter. The Contractor shall demonstrate, in the presence of the RPR, that the method used cleans the joint and does not damage the joint.

101-3.8.1 Removal of Existing Joint Sealant. All existing joint sealants will be removed by plowing or use of hand tools. Any remaining sealant and or debris will be removed by use of wire brushes or other tools as necessary. Resaw joints removing no more than 1/16 inch from each joint face. Immediately after sawing, flush out joint with water and other tools as necessary to completely remove the slurry.

101-3.8.2 Cleaning prior to sealing. Immediately before sealing, joints shall be cleaned by removing any remaining laitance and other foreign material. Allow sufficient time to dry out joints prior to sealing.

Joint surfaces will be surface-dry prior to installation of sealant.

101-3.8.3 Joint sealant. Joint material and installation will be in accordance with Item P-605.

Item P-101 Preparation/Removal of Existing Pavements P-101-4

101-3.9 Preparation of Cracks in Flexible Pavement prior to sealing. Prior to application of sealant material, clean and dry the joints of all scale, dirt, dust, old sealant, curing compound, moisture and other foreign matter. The Contractor shall demonstrate, in the presence of the RPR, that the method used cleans the cracks and does not damage the pavement.

101-3.9.1 Preparation of Crack. Widen crack with router by removing a minimum of 1/16 inch from each side of crack. Immediately before sealing, cracks will be blown out with a hot air lance combined with oil and water-free compressed air.

101-3.9.2 Removal of Existing Crack Sealant. Existing sealants will be removed by routing. Following routing any remaining debris will be removed by use of a hot lance combined with oil and water-free compressed air.

101-3.9.3 Crack Sealant. Crack sealant material and installation will be in accordance with Item P-605.

101-3.9.4 Removal of Pipe and other Buried Structures.

a. Removal of Existing Pipe Material. Not used.

b. Removal of Inlets/Manholes. Where indicated on the plans or as directed by the RPR, inlets and/or manholes shall be removed and legally disposed of off-site in a timely fashion after removal.

c. Adjustment of structures. Where indicated on the plans or as directed by the RPR, manholes, cleanouts, and valves shall be adjusted to the proposed elevation indicated on the plans. Any damage to the existing structures shall be repair or replaced at the Contractor’s expense in coordination with the utility owner.

d. Removal of Airfield Electrical Equipment. Where indicated on the plans or as directed by the

RPR airfield electrical structures or lights shall be removed and legally disposed of off-site in a timely manner after removal. Taxiway lights and associated isolation transformers and reflectors shall be salvaged and turned over to the Airport as designated by the RPR. Direct earth buried, two-inch Schedule

40 PVC, conduit shall be installed to make the conduit continuous, as shown on the plans. Removal excavations shall be backfilled with material of equal or better quality than that of adjacent embankment and shall also meet all compaction requirements of P-152.

101-3.9.5 Full-Depth Pavement Repair. Full-depth pavement repair will be required at locations determined by the RPR. Pavement shall be removed full-depth (paid for under full-depth pavement removal). Asphaltic concrete pavement to be removed shall be milled by a machine that is at least 2’ wide or saw cut around the perimeter of the area to be removed. Existing pavement in place to remain that is damaged by the Contractor shall be repaired at the Contractor’s expense. The repair method shall be approved by the RPR. The subgrade shall be mitigated per Subgrade Mitigation in section P-152.

The area around the full-depth pavement removal shall be milled to a 2-inch depth for a minimum of 12 inches on all sides of the full-depth pavement repair area. A pavement reinforcement grid, meeting the requirements of paragraph 101-3.2.b.(1), will be adhered to the top of the 2 inch lift prior to pavement the overlay.

101-3.9.6 Placement and Compaction of Asphalt Millings. Place and compact asphalt millings as shown on the plans or directed by the RPR. Millings in excess of those required within planned limits shall be properly disposed of off Airport property. The millings shall be compacted using a steel drum roller and, if shown on the plans, sealed with emulsified asphalt seal coat material per Item P-608.

METHOD OF MEASUREMENT

101-4.1 Pavement Removal. The unit of measurement for pavement removal including full depth pavement removal and asphalt milling removal shall be the number of square yards removed by the

Contractor and disposed of off Airport property. The unit of measurement for pavement removal

Item P-101 Preparation/Removal of Existing Pavements P-101-5 including excess millings shall be the number of cubic yards removed by the Contractor and disposed of off Airport property. Any pavement removed outside the limits of removal because the pavement was damaged by negligence on the part of the Contractor shall not be included in the measurement for payment. No direct measurement or payment shall be made for saw cutting. Saw cutting shall be incidental to pavement removal. Pavement reinforcing grid shall be considered incidental to pavement repair.

101-4.2 Joint and Crack repair. The unit of measurement for joint and crack repair shall be the linear foot of crack for Type 1 Crack Repair and for Type 2 Crack Repair. The unit of measurement for crack repair will be made at the contract unit price for the completed and accepted item. This price shall be full compensation for all labor, equipment, tools, and incidentals necessary to complete this item in accordance with Crack Repair stated in this specification and in the plans, including pavement reinforcement grid.

101-4.3 Patching. The unit of measurement for patching shall be per square yard. The unit of measurement will be made at the contract unit price for the completed and accepted item. This price shall be full compensation for all labor, equipment, tools, and incidentals necessary to complete this item in accordance with the project specification and the plans.

101-4.4 Concrete Spall Repair. The unit of measure for concrete spall repair shall be the number of square feet. The location and average depth of the patch shall be determined and agreed upon by the RPR and the Contractor.

101-4.5 Cold milling. The unit of measure for cold milling shall be per square yard. The location and average depth of the cold milling shall be as shown on the plans. Depths shown on the plans are approximate. Actual depth may vary. Additional milling necessary to remove fabric or to remove delamination shall be considered incidental to cold milling.

101-4.6 Placement and Compaction of Asphalt Millings. Placement and compaction of asphalt millings shall be measured per square yard.

101-4.7 Adjustment of structures. The unit of measurement for adjustment of structures will be made at the contract unit price for each completed and accepted item. This price shall be full compensation for all labor, equipment, tools, and incidentals necessary to complete this item.

101-4.8 Removal of Airfield Electrical Equipment. The unit of measurement for removal of lights, reflectors, and other miscellaneous electrical items will be made at the contract unit price for each completed and accepted item, including foundations. This price shall be full compensation for all labor, equipment, tools, and incidentals necessary to complete this item in accordance with paragraph 101-3.9.4.

BASIS OF PAYMENT

101-5.1 Payment. Payment shall be made at contract unit price for the unit of measurement as specified above. This price shall be full compensation for furnishing all materials and for all preparation, hauling, and placing of the material and for all labor, equipment, tools, and incidentals necessary to complete this item.

Item P-101-5.1 Cold Milling (2-Inch Depth) – per square yard

Item P-101-5.2 Cold Milling (Variable ~4-Inch Depth) – per square yard

Item P-101-5.3 Cold Milling (Variable ~6-Inch Depth) – per square yard

Item P-101-5.4 Type 1 Crack Repair – per linear foot

Item P-101-5.5 Type 2 Crack Repair – per linear foot

Item P-101 Preparation/Removal of Existing Pavements P-101-6

Item P-101-5.6 Full-Depth Pavement Removal – per square yard

Item P-101-5.7 Placement and Compaction of Asphalt Millings – per square yard

Item P-101-5.8 Concrete Spall Repair – per square foot

Item P-101-5.9 Asphalt Patching – per square yard

Item P-101-5.10 Removal of Asphalt Millings (Haul Off-Site) – per square yard

Item P-101-5.11 Adjust Underdrain Cleanout – per each

Item P-101-5.12 Adjust Sanitary Sewer Structure – per each

Item P-101-5.13 Adjust Water Valve Structure – per each

Item P-101-5.14 Remove Edge Light and Foundation, Complete – per each

Item P-101-5.15 Remove Edge Reflector, Complete – per each

Item P-101-5.16 Remove Junction Structure, Complete – per each

Item P-101-5.17 Remove Guidance Sign and Foundation, Complete – per each

Item P-101-5.18 Excess Millings (Haul Off-Site) – per cubic yard

REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM International (ASTM)

ASTM C881 Standard Specification for Epoxy-Resin-Base Bonding Systems for

Concrete

ASTM C136 Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates

END OF ITEM P-101

Item D-701 Pipe for Storm Drains and Culverts D-701-1

Item D-701 Pipe for Storm Drains and Culverts

DESCRIPTION

701-1.1 This item shall consist of the construction of pipe culverts and storm drains in accordance with these specifications and in reasonably close conformity with the lines and grades shown on the plans.

MATERIALS

701-2.1 Materials shall meet the requirements shown on the plans and specified below.

701-2.2 Pipe. The pipe shall be of the type called for on the plans or in the proposal and shall be in accordance with the following appropriate requirements:

ASTM C76 Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe

ASTM C1479 Standard Practice for Installation of Precast Concrete Sewer, Storm

Drain, and Culvert Pipe Using Standard Installations

ASTM C1840 Standard Practice for Inspection and Acceptance of Installed Reinforced

Concrete Culvert, Storm Drain, and Storm Sewer Pipe

701-2.3 Concrete. Concrete shall be in accordance with Item P-610.

701-2.4 Rubber gaskets. Rubber gaskets for rigid pipe shall conform to the requirements of ASTM

C443. Rubber gaskets for PVC pipe, polyethylene, and polypropylene pipe shall conform to the requirements of ASTM F477. Rubber gaskets for zinc-coated steel pipe and precoated galvanized pipe shall conform to the requirements of ASTM D1056, for the “RE” closed cell grades. Rubber gaskets for steel reinforced thermoplastic ribbed pipe shall conform to the requirements of ASTM F477.

701-2.5 Joint mortar. Pipe joint mortar shall consist of one part Portland cement and two parts sand. The

Portland cement shall conform to the requirements of ASTM C150, Type I. The sand shall conform to the requirements of ASTM C144.

701-2.6 Joint fillers. Poured filler for joints shall conform to the requirements of ASTM D6690.

701-2.7 Plastic gaskets. Not used.

701-2.8. Controlled low-strength material (CLSM). Controlled low-strength material shall conform to the requirements of Item P-153. When CLSM is used, all joints shall have gaskets.

701-2.9 Precast box culverts. Not used.

701-2.10 Precast concrete pipe. Precast concrete structures shall be furnished by a plant meeting

National Precast Concrete Association Plant Certification Program or American Concrete Pipe

Association QCast Plant Certification program.

CONSTRUCTION METHODS

701-3.1 Excavation. The width of the pipe trench shall be sufficient to permit satisfactory jointing of the pipe and thorough tamping of the bedding material under and around the pipe, but it shall not be less than

Item D-701 Pipe for Storm Drains and Culverts D-701-2 the external diameter of the pipe plus 12 inches on each side. The trench walls shall be approximately vertical.

The Contractor shall comply with all current federal, state and local rules and regulations governing the safety of men and materials during the excavation, installation and backfilling operations. Specifically, the Contractor shall observe that all requirements of the Occupational Safety and Health Administration

(OSHA) relating to excavations, trenching and shoring are strictly adhered to. The width of the trench shall be sufficient to permit satisfactorily jointing of the pipe and thorough compaction of the bedding material under the pipe and backfill material around the pipe, but it shall not be greater than the widths shown on the plans trench detail.

Where rock, hardpan, or other unyielding material is encountered, the Contractor shall remove it from below the foundation grade for a depth of at least 8 inch or 1/2 inch for each foot of fill over the top of the pipe (whichever is greater) but for no more than three-quarters of the nominal diameter of the pipe. The excavation below grade should be filled with granular material to form a uniform foundation.

Where a firm foundation is not encountered at the grade established, due to soft, spongy, or other unstable soil, the unstable soil shall be removed and replaced with approved granular material for the full trench width. The RPR shall determine the depth of removal necessary. The granular material shall be compacted to provide adequate support for the pipe.

The excavation for pipes placed in embankment fill shall not be made until the embankment has been completed to a height above the top of the pipe as shown on the plans.

701-3.2 Bedding. The bedding surface for the pipe shall provide a foundation of uniform density to support the pipe throughout its entire length.

a. Rigid pipe. The pipe bedding shall be constructed uniformly for the full length of the pipe barrel, as required on the plans. The maximum aggregate size shall be 1 in when the bedding thickness is less than 6 inches, and 1-1/2 in when the bedding thickness is greater than 6 inches. Bedding shall be loosely placed uncompacted material under the middle third of the pipe prior to placement of the pipe.

b. Flexible pipe. For flexible pipe, the bed shall be roughly shaped to fit the pipe, and a bedding blanket of sand or fine granular material shall be provided as follows:

Flexible Pipe Bedding

Pipe Corrugation Depth Minimum Bedding Depth inch inch

1/2 1

1 2

2 3

2-1/2 3-1/2

c. Other pipe materials. For underdrain applications, the pipe bedding shall be in accordance with

Item D-705.

701-3.3 Laying pipe. The pipe laying shall begin at the lowest point of the trench and proceed upgrade.

The lower segment of the pipe shall be in contact with the bedding throughout its full length. Bell or groove ends of rigid pipes and outside circumferential laps of flexible pipes shall be placed facing upgrade.

Item D-701 Pipe for Storm Drains and Culverts D-701-3

Paved or partially lined pipe shall be placed so that the longitudinal center line of the paved segment coincides with the flow line.

Elliptical and elliptically reinforced concrete pipes shall be placed with the manufacturer’s reference lines designating the top of the pipe within five degrees of a vertical plane through the longitudinal axis of the pipe.

701-3.4 Joining pipe. Joints shall be made with (1) cement mortar, (2) cement grout, (3) rubber gaskets,

(4) plastic gaskets, (5) coupling bands.

Mortar joints shall be made with an excess of mortar to form a continuous bead around the outside of the pipe and shall be finished smooth on the inside. Molds or runners shall be used for grouted joints to retain the poured grout. Rubber ring gaskets shall be installed to form a flexible watertight seal.

a. Concrete pipe. Concrete pipe may be either bell and spigot or tongue and groove. Pipe sections at joints shall be fully seated and the inner surfaces flush and even. Concrete pipe joints shall be sealed with rubber gaskets meeting ASTM C443 when leak resistant joints are required. Concrete pipe joints shall be sealed with butyl mastic meeting ASTM C990 or mortar when soil tight joints are required. Joints shall be thoroughly wetted before applying mortar or grout.

b. Metal pipe. Not used.

c. PVC, Polyethylene, or Polypropylene pipe. Not used.

d. Fiberglass pipe. Not used.

701-3.5 Embedment and Overfill. Pipes shall be inspected before any fill material is placed; any pipes found to be out of alignment, unduly settled, or damaged shall be removed and re-laid or replaced at the

Contractor’s expense.

701-3.5-1 Embedment Material Requirements

a. Concrete Pipe. Embedment material and compaction requirements shall be in accordance with the applicable Type of Standard Installation (Types 1, 2, 3, or 4) per ASTM C1479.

b. Plastic and fiberglass Pipe. Not used.

c. Metal Pipe. Not used.

701-3.5-2 Placement of Embedment Material

The embedment material shall be compacted in layers not exceeding 6 inches on each side of the pipe and shall be brought up one foot above the top of the pipe or to natural ground level, whichever is greater.

Thoroughly compact the embedment material under the haunches of the pipe without displacing the pipe.

Material shall be brought up evenly on each side of the pipe for the full length of the pipe.

When the top of the pipe is above the top of the trench, the embedment material shall be compacted in layers not exceeding 6 inches and shall be brought up evenly on each side of the pipe to one foot above the top of the pipe. All embedment material shall be compacted to a density required under Item P-152.

Flowable fills, such as controlled low strength material (CLSM) or controlled density fill (CDF), may be used for embedment provided adequate flotation resistance can be achieved by restraints, weighing, or placement technique.

It shall be the Contractor’s responsibility to protect installed pipes and culverts from damage due to construction equipment operations. The Contractor shall be responsible for installation of any extra strutting or backfill required to protect pipes from the construction equipment.

Item D-701 Pipe for Storm Drains and Culverts D-701-4

701-3.6 Overfill

Pipes shall be inspected before any overfill is in place. Any pipes found to be out of alignment, unduly settled, or damaged shall be removed and relaid or replaced at the Contractor’s expense. Evaluation of any damage to RCP shall be evaluated based on AASHTO R73.

Overfill material shall be place and compacted in layers as required to achieve compaction to at least 95 percent standard proctor per ASTM D1557. The soil shall contain no debris, organic matter, frozen material, or stones with a diameter greater than one half the thickness of the compacted layers being placed.

701-3.7 Inspection Requirements

An initial post installation inspection shall be performed by the RPR no sooner than 30 days after completion of installation and final backfill. Clean or flush all lines prior to inspection.

Reinforced concrete pipe shall be inspected, evaluated, and reported on in accordance with ASTM C1840, “Standard Practice for Inspection and Acceptance of Installed Reinforced Concrete Culvert, Storm Drain, and Storm Sewer Pipe.” Any issues reported shall include still photo and video documentation. The zoom ratio shall be provided for all still or video images that document any issues of concern by the inspection firm.

METHOD OF MEASUREMENT

701-4.1 The length of pipe shall be measured in linear feet of pipe in place, completed, and accepted. It shall be measured along the centerline of the pipe from end or inside face of structure to the end or inside face of structure, whichever is applicable. All fittings shall be included in the footage as typical pipe sections in the pipe being measured.

701-4.2. Flared end sections shall be measured per each.

701-4.3. The quantity of riprap to be paid for shall be the type measured in cubic yards of riprap in place, completed and approved. Bedding and geotextile shall be incidental to the cost of riprap.

701-4.4 Install restrictor plate in ARFF pond outlet structure shall be measured per each.

BASIS OF PAYMENT

701-5.0 These prices shall fully compensate the Contractor for furnishing all materials and for all preparation, excavation, bedding, backfill, and installation of these materials; and for all labor, equipment, tools, and incidentals necessary to complete the item.

701-5.1 Payment will be made at the contract unit price per linear foot for each class and size of pipe.

701-5.2 Payment will be made at the contract unit price per each for flared end sections.

701-5.3 Payment shall be made at the contract unit price per cubic yard for each type of riprap designated.

701-5.4 Payment will be made at the contract unit price per each for install restrictor plate in ARFF pond outlet structure.

Payment will be made under:

Item 701-5.1 24-Inch Reinforced Concrete Pipe (Class V)- per linear foot

Item D-701 Pipe for Storm Drains and Culverts D-701-5

Item 701-5.2 24-Inch Flared End Section (Class V) – per each

Item 701-5.3 36-Inch Reinforced Concrete Pipe (Class III) – per linear foot

Item 701-5.4 Reset 36-Inch Flared End Section - per each

Item 701-5.5 Connect Pipe to Structure - per each

Item 701-5.6 Riprap - Type L - per cubic yard

Item 701-5.7 Install Restrictor Plate in ARFF Pond Outlet Structure - per each

REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

American Association of State Highway and Transportation Officials (AASHTO)

ASTM International (ASTM)

ASTM C76 Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe

ASTM C150 Standard Specification for Portland Cement

ASTM C443 Standard Specification for Joints for Concrete Pipe and Manholes, Using

Rubber Gaskets

ASTM C990 Standard Specification for Joints for Concrete Pipe, Manholes, and

Precast Box Sections Using Preformed Flexible Joint Sealants

ASTM D6690 Standard Specification for Joint and Crack Sealants, Hot Applied, for

Concrete and Asphalt Pavements

ASTM F477 Standard Specification for Elastomeric Seals (Gaskets) for Joining

Plastic Pipe

ASTM F2736 Standard Specification for 6 to 30 in. (152 to 762 mm) Polypropylene

(PP) Corrugated Single Wall Pipe and Double Wall Pipe

END ITEM D-701

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CONTRACT TIME AND LIQUIDATED DAMAGES FOR TAXIWAYS C & D

PHASE DURATION LIQUIDATED DAMAGES MAJOR WORK ITEMS

SCHEDULE I:

REHABILITATE TAXIWAYS

C AND D (FEDERAL)

15 CALENDAR DAYS

(SEE NOTE 1) $7,500 / CALENDAR DAY

VARIABLE DEPTH MILL AND OVERLAY (~4 INCH DEPTH), FULL DEPTH

SUBGRADE MITIGATION, CRACK REPAIR, MARKING REMOVAL,

PAVEMENT MARKING, THERMOPLASTIC MARKING, ASPHALT

PAVEMENT RAPID CURE SEAL COAT, SHOULDERING

NOTES:

1. THE CONTROL STRIP FOR P-401 SHALL BE CONSTRUCTED BY THE CONTRACTOR AND APPROVED BY THE RPR A MINIMUM OF 2 DAYS PRIOR TO THE START OF PHASE 1 AND THE CLOSING OF RUNWAY 10/28. THE LOCATION OF THE P-401 CONTROL STRIP SHALL BE DETERMINED IN THE FIELD BY THE AIRPORT AND RPR. THE CONTROL STRIP SHALL CONSIST OF 2" PLACEMENT OF P-401.

2. ASPHALT PAVEMENT RAPID CURE SEAL COAT AND PAVEMENT MARKING ON TAXIWAY C EXTENSION SHALL BE COMPLETED ON THE

FINAL DAY OF WORK FOR PHASE 3.

3. THE CONTRACTOR SHALL HAVE A DEDICATED FIELD SUPERINTENDENT ON SITE DURING ALL WORKING HOURS AND ACCESSIBLE

BY PHONE OUTSIDE OF WORKING HOURS.

4. LIQUIDATED DAMAGES WILL BE STRICTLY ENFORCED AND IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO BE WELL PREPARED FOR ANY CIRCUMSTANCE THAT COULD RESULT IN NOT COMPLETING CONSTRUCTION IN THE ALLOTTED CONSTRUCTION TIME.

5. THE CONTRACTOR WILL BE REQUIRED TO MAINTAIN THEIR CONSTRUCTION SITE THROUGHOUT THE PROJECT. THEY SHALL PROTECT THE WORK AREA TO KEEP IT FREE FROM WATER AT ALL TIMES. IF THE SITE BECOMES AFFECTED BY WATER, THE CONTRACTOR WILL BE REQUIRED TO DEWATER THE SITE AS NECESSARY. THE COST OF PROTECTING AND/OR DEWATERING THE WORK AREAS WILL BE CONSIDERED INCIDENTAL TO THE PROJECT. ADDITIONAL CONTRACT TIME WILL NOT BE AWARDED FOR

PROTECTING AND/OR DEWATERING THE WORK AREAS.

6. CONTRACTOR SHALL TAKE PHOTOS OF EXISTING ROAD CONDITIONS PRIOR TO CONSTRUCTION. ANY DAMAGE CREATED BY THE CONTRACTOR DURING THE PROJECT SHALL BE CORRECTED, AS APPROVED BY THE RPR,…