Addendum No. 4 - View Crest - 3890.pdf

August 22, 2024

ADDENDUM NO. 4

View Crest Road Slope and Road Repair Project Specification No. 3890

To All Prospective Bidders:

Please note the following requirement as part of the bid proposal for the subject project:

1. Responses to Bidders’ Questions: Answers to all questions received regarding the project are attached as Sheets RBQ-1 and RBQ-3.

2. Bid Forms: Replace Pages F-7 to F-8 of “Bid Forms” with attached Pages F-7R to F-8R:

• Removal of “Furnish and Install Wall Drainage System, Complete in Place*” bid item.

3. Payment Items: Replace Pages PI-3 to PI-6 of “Payment Items” with attached

Pages PI-3R to PI-5R:

• Revision of Payment Item No. 14 to clarify inclusion of backfill and

• Removal of “Furnish and Install Wall Drainage System, Complete in Place*” pay item.

The bid opening date and time remains unchanged.

This addendum MUST be signed by the bidder and submitted along with the bid package.

No bids will be accepted without the signed addendum.

Sincerely, Viktoriya Pakhanyan, P.E.

Senior Civil Engineer

Acknowledgement:

Bidder:_________________________ Date:___________________

Title:__________________________

Copy: Suzie Abajian, Ph.D., City Clerk Armen Avazian, P.E., Principal Civil Engineer Karen Cortes, Administrative Assistant Tahmasb Arasteh, Construction Services Manager

Daniel Hernandez, Interim Director of Public Works Project File Sarkis Oganesyan, P.E., Deputy Director of Public Works/City Engineer

Page RBQ-1 Specification No. 3890

RESPONSES TO BIDDERS’ QUESTIONS

1. Question: Will there be a mandatory pre-bid conference for this project?

Response: There will not be a mandatory pre-bid conference for this project. All interested bidders and their subcontractors must complete a site inspection independently before submitting bids.

2. Question: Is there a list of plan holders for this project?

Response: The City no longer creates a list of plan holders, as it is the responsibility of interested bidders to check our website to obtain addendums to bid documents. However, BidnetDirect site for the project has a “Plan Holders List” interested parties may find useful

(www.bidnetdirect.com//cityofglendale).

3. Question: Does the 60 day working time frame include the fabrication of the lagging panels? As this generally takes 5-6 weeks once submittals are approved.

Response: Once the project contract is awarded to a contractor, the contractor shall be responsible for sending submittals of materials with long procurement times on a timely manner to the city for review. The city will promptly review and return the submittals. Upon the manufacture and delivery of these materials, the city will issue the Notice to Proceed, allowing the contractor to begin construction. Additionally, the City has issued Addendum

#2, increasing the number of working days for the project to 180.

4. Question: I do not see a standard plan for the drainage system for the lagging panels, is there on available?

Response: The “Furnish and Install Wall Drainage System, Complete in Place*” bid item has been removed from the Schedule of Bid Prices and Payment Items.

5. Question: I was going over the plans but I noticed that the pile schedule is missing. We need the pile schedule to find the length of the beams and the concrete embedment for each pile. See example pile schedule below from one of our projects. If the pile schedule is not available, I would appreciate it if you could provide the length of the beams.

https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.bidnetdirect.com%2Fcityofglendale&data=05%7C02%7Cvpakhanyan%40Glendaleca.gov%7C765bb1a0234c46aaea0f08dcb01376c3%7Ce5115311f6c3421bbc03a5d8c79bf546%7C0%7C0%7C638578844917651723%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=9tWTSza4FBuREFWZLRVqRXBMedXs%2Fv4QcJjct9eIC%2Fs%3D&reserved=0

Page RBQ-2 Specification No. 3890

Response: The length of the piles needs to be established in the field based on the depth to bedrock as encountered during drilling. Approximate depths to bedrock are shown on boring logs on sheet 10 of 10 of civil/structural drawings. Note that the bottom of the beam should have a clearance from bottom of concrete pile that is no less than 3 inches and no greater than 12 inches.

6. Question: The precast lagging panels are 3,200 SF per bid item#14. The precast suppliers are requesting the precast length and width in order to provide a quote. I would appreciate it if you could provide those dimensions. Can you please share how you came up with 3,100

SF for the precast concrete lagging?

Response: The length of the wall is approximately 400 feet. Wall panel height is 6’-9”. 400 ft x 6’9” = 2700 square feet. However, the assumption is that 2-ft-wide panels would be used – this would require 4 panels per section with 6’-9” tall lagging, if 2-ft planks used, that makes for 4 planks per section resulting in approximately 3200 sf. We note that 2-ft-wide panels are not required – contractor may select any width provided the 6’-9” wall height is achieved – note that minimum 9-inch embedment into bedrock at bottom of panels is required.

7. Question: Does each bay (space between the beams) only has one precast lagging panel?

If not, please advise.

Response: The length of the panels should be determined by the pile spacing, which is approximately 8 feet. Panels should be continuous (not spliced) between piles. Pile spacing to be field verified.

8. Question: Do the steel beams on sheet 9 need to be coated? If so, what part of the beam will need to be coated: the whole beam or if not indicate the length. Please also provide the coating material and specs. if the beams need to be coated.

Response: Please see Structural Steel note 3 on sheet 7 of 10 of the civil/structural drawings. The beams shall be epoxy coated according to ASTM A950. The coating must be piling manufacturer applied prior to delivery, using fusion-bonded epoxy coating. Coating thickness, application must be per coating manufacturer recommendation. Prior to application, Contractor shall submit epoxy coating specifications, color selection for City approval. Minimally, the upper 10 feet of beam should be coated.

9. Question: Can you please add in the schedule of bid prices an item for excavating and backfilling the precast wall.

Response: Excavation on the street side should be vertical and excavated in 2-ft increments. Backfill gap between face of lagging and earth material (which is anticipated to be approximately 2 to 6 inches in width) with 2-sack sand-cement slurry. The slope on the hill side of the wall should be restored as needed so that there is no more than 6 feet retained height. All necessary excavation to construct the work is included in the

“Unclassified Excavation” bid item. Backfilling shall be included in the “Furnish and Install

Precast Concrete Lagging Per Plan, Complete in Place” bid item.

Page RBQ-3 Specification No. 3890

10. Question: Does the unclassified excavation include excavating for the precast concrete lagging panels? If not, can you please create an item to excavate for the installation of the precast lagging panel.

Response: Please refer to response to question 9.

11. Question: If the steel beams are 32' long each per scaled sheet 9, the concrete embedement for the piles should be more than what is shown on Detail 1 of sheet 7. Please advise on pile concrete depth.

Response: Please refer to response to question 5.

12. Question: Looking at the plans, we show a quantity of 49 lagging panels equaling to 1328

SF assuming just one layer at the top. We are unsure if this is correct as the Schedule of Bid

Prices show 3,100 SF for bid item#l4. Could you please confirm the correct quantity, quare footage, and dimensions of the precast lagging?

Response: Please refer to question 6.

13. Question: I have a question about the steel soldier beam. The plans do not show the depth or how wide we need to dig. Can you please advise on the size and depth of the beams so we can bid accordingly. Is there a plan that shows the profile listing top of elevation to bottom elevation?

Response: Please refer to response to question 5.

14. I want to make sure that the road can be temporarily closed while we are drilling.

Response: Per Special Conditions Section 6.01 of the Project Specification, it is the contractor’s responsibility that a minimum of one traffic lane be made available to vehicular traffic during construction and that, at the end of each work day, two lanes of traffic (one lane in each direction) be restored for vehicular traffic. However, at the discretion of the city, the contractor may propose providing alternate means of access to residents during construction, such as Low Speed Vehicles (LSVs) and licensed drivers to transport residents to and from their vehicles parked outside of the construction zone and their homes. These services would need to be available between 7:00 am to 7:00 pm to allow residents time to leave and return home. All costs involved in providing alternate means of access to residents, including the payment of insurance, wages, and all other fees, shall be considered as paid for in the various related items of work and no additional compensation shall be made therefore.

BID FORMS

SCHEDULE OF BID PRICES

Specification No. 3890

BID FORMS

F-7R

12.

CONSTRUCT 8-INCH P.C.C PAVEMENT (LOCAL

DEPRESSION, LONGITUDINAL & CROSS

GUTTERS, BUS PAD).

301 SF

13.

FURNISH AND INSTALL STEEL PILE PER PLAN,

COMPLETE IN PLACE.

49 EA

14.

FURNISH AND INSTALL PRECAST CONCRETE

LAGGING PER PLAN, COMPLETE IN PLACE.

3,100 SF

15.

CONSTRUCT CONCRETE BLOCK SLOUGH

WALL PER SPPWC 622-4, H=3'.

40 LF

16.

REMOVE AND DISPOSE EXISTING GUARDRAIL

SYSTEM (INCLUDES POSTS, DISPOSAL OF

TREATED WOOD, CONCRETE FOOTING).

375 LF

17.

INSTALL MIDWEST GUARDRAIL SYSTEM PER

CALTRANS STANDARD PLAN A77L2 (WITH

STEEL POSTS).

748 LF

18.

INSTALL MIDWEST GUARDRAIL SYSTEM END

ANCHOR ASSEMBLY PER CALTRANS

STANDARD PLAN A77S1.

4 EA

19.

ADJUST GWP WATER VALVE TO NEW

FINISHED GRADE.

1 EA

20.

ADJUST/REPLACE GWP WATER METER BOX

AND COVER AND SET TO NEW FINISHED

GRADE.

3 EA

21. ADJUST MANHOLE FRAME AND COVER SET. 4 EA

22. RECONSTRUCT/REMODEL CURB DRAIN. 8 EA

23. FURNISH AND INSTALL NEW SIGN AND POST. 14 EA

24.

INSTALL THERMOPLASTIC 6-INCH-WIDE SOLID

DOUBLE YELLOW CENTERLINE SEPARATED

BY A 3-INCH-WIDE SOLID BLACK STRIPE WITH

TYPE D TWO-WAY YELLOW R.P.M. PER

CALTRANS STANDARD PLAN NO. A20A.,

DETAIL 22.

150 LF

25 LANDSCAPING PER PLAN NO. 18-112. 1 LS

26.

FURNISH AND INSTALL IRRIGATION SYSTEM

PER PLAN NO. 18-112.

1 LS

27. ADJUST/REPLACE CENTERLINE TIE.* 1 EA

28. ADJUST/REPLACE PROPERTY CORNER.* 1 EA

29. ADJUST/REPLACE BENCH MARK.* 1 EA

BID FORMS

Specification No. 3890

BID FORMS

F-8R

30.

ADJUST/REPLACE SURVEY WELL

MONUMENT.*

1 EA

31.

REGRADE AND CONSTRUCT BRICK

DRIVEWAY TO MATCH EXISTING.*

100 SF

BID TOTAL $____________________

If there is a difference between the amount shown in words for a bid and the amount shown in numbers, the amount in words shall have precedence.

Bidder shall exclude the cost of Permit Fees from Bidder’s Base Bid price. Base Bid price shall include the cost of administration and coordination of Governmental Approvals and Utility Fees.

Items marked with a (*) indicates that quantities shown are for bidding purposes only. These items and quantities may or may not be used, at the discretion of the engineer. The Engineer shall determine the exact locations and quantities, if any, where the above quantities will be needed.

PAYMENT ITEMS

PI-3R

transverse joints, inserting a cord (backer rod) at uniform depth of 5/8” below the surface of pavement and sealing the joints with Dow Corning No. 888 Silicone Sealant or equal, light gray color to match concrete pavement.

13. Payment for “Furnish and Install Steel Pile Per Plan, Complete in Place” will be made at the contract unit price for Item No. 13, per Each, which shall include all labor, materials, equipment, and tools necessary to construct steel pile, complete in place. The work shall include potholing to verify utility locations and depths, ensuring slope safety, hole drilling, concrete, reinforcement, structural steel, painting, and all other work necessary to construct pile complete in place, and all incidentals, as directed by the Engineer.

14. Payment for “Furnish and Install Precast Concrete Lagging Per Plan, Complete in Place” will be made at the contract unit price for Item No. 14, in Square Foot, which shall include all labor, materials, equipment, and tools necessary to construct precast concrete lagging, complete in place. The work shall include potholing to verify utility locations and depths, ensuring slope safety, preparation, materials, reinforcement, forms, placement, protection, backfill as needed, and all other work necessary to construct the precast concrete lagging, complete in place. Precast concrete lagging shall be to the dimensions as shown on the plans, modified as necessary to fit actual conditions in the field and as approved by the Engineer. Precast concrete lagging shall be rectangular shaped for best fit.

15. Payment for “Construct Concrete Block Slough Wall per SPPWC 622-4, H=3’” will be made at the contract unit price for Item No. 15, in Linear Foot, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in construction of concrete block slough wall per SPPWC 622-4, H=3’, complete in place, as shown on the plans, including trench digging for wall base, compaction and leveling of base pad, furnishing and installing earth tone color “Key Legacy Stone” blocks or approved equal to match existing, furnishing and installing gravel backfill, removing and hauling away excess earth material, replacing existing irrigation lines and sprinklers (if necessary), joining to adjacent existing structure, and all incidentals, as directed by the Engineer.

16. Payment for “Remove and Dispose Existing Guardrail System (Includes Posts, Disposal of Treated Wood, Concrete Footing)” will be made at the contract unit price for Item No. 16, in Linear Foot, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in dismantling, removal, and disposal all existing elements of the guardrail system, including guardrail metal beam, guardrail hardware, guardrail posts, disposal of posts and treated wood, end treatments and concrete footing, complete in place, as shown on the plans, and all incidentals, as directed by the Engineer

17. Payment for “Install Midwest Guardrail System per Caltrans Standard Plan A77L2 (With Steel Posts)” will be made at the contract unit price for Item No. 17, in Linear Foot, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in furnishing and installing a completely new Midwest Guardrail System with steel posts per Caltrans Standard Plan A77L2, complete in place, as shown on the plans, and all incidentals, as directed by the Engineer.

18. Payment for “Install Midwest Guardrail System End Anchor Assembly per Caltrans Standard Plan A77S1” will be made at the contract unit price for Item No. 18, per Each, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in furnishing and installing Midwest guardrail system end anchor assembly per Caltrans Standard Plan A77S1, including potholing to verify utility locations and depths, complete in place, as shown on the plans, and all incidentals, as directed by the Engineer.

19. Payment for “Adjust GWP Water Valve to New Finished Grade” will be made at the contract unit price for Item No. 19, per Each, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in adjusting GWP Water valve to new finished grade per GWP Standard Drawing 1590-Sheet 1 in Appendix C, complete in place, as shown on the plans, including vacuuming of debris in the valve box, repaving around the adjusted valves, temporary locators, permanent markers, valve shaft

PI-4R

extensions, painting the valve caps (blue for main lines, yellow for hydrant laterals, and purple for recycled lines), and all incidentals, as directed by the Engineer.

20. Payment for “Adjust/Replace GWP Water Meter Box and Cover and Set to New Finished Grade” will be made at the contract unit price for Item No. 20, per Each, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in replacing and/or adjusting the existing water meter box and cover to new finished grade, complete in place, as shown on the plans, per GWP Standard Plan 1660-A Sheet 1 & 2 in Appendix C, including removal and proper disposal of the existing water meter box and cover (if necessary), furnishing pipe of size and material to match existing pipe, new water meter box and cover (if necessary), restoration of disturbed improvements, and all incidentals, as directed by the Engineer.

21. Payment for “Adjust Manhole Frame and Cover Set” will be made at the contract unit price for Item No. 21, per Each, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in adjusting existing water, electrical, storm drain, sanitary sewer manhole and cleanout frame and cover sets to the new finished surface grade, complete in place, as shown on the plans, including re-paving around adjusted manholes, and all incidentals, as directed by the Engineer.

22. Payment for “Reconstruct/Remodel Curb Drain” will be made at the contract unit price for Item No. 22, per Each, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in reconstructing existing roof/curb drains from the curb to 5’ behind the right-of-way, complete in place, as shown on the plans, including one twelve-inch length of cast iron pipe of a size required to match existing pipe (up to 4 inches I.D.), connection to existing pipe, outlet through curb, and all incidentals, as directed by the Engineer. Restoration of curb and sidewalk to the nearest score lines shall be paid for under the related bid items.

23. Payment for “Furnish and Install New Sign and Post” will be made at the contract unit price for Item No.

23, per Each, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in furnishing and installing new sign and new post, complete in place, as shown on the plans, including the sign as specified on plans, 2-inch galvanized square tubing sign pole, concrete foundation, any strapping or bolting for attachment, and all incidentals, as directed by the Engineer.

24. Payment for “Install Thermoplastic 6-Inch-Wide Solid Double Yellow Centerline Separated by a 3-

Inch-Wide Solid Black Stripe with Type D Two-Way Yellow R.P.M. per Caltrans Standard Plan No.

A20A, Detail 22” will be made at the contract unit price for Item No. 24, in Linear Foot, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in furnishing and installing Thermoplastic 6-Inch-Wide Solid Double Yellow Centerline Separated by A 3-Inch-Wide Solid Black Stripe with Type D Two-Way Yellow R.P.M. per Caltrans Standard Plan No. A20A, Detail 22, complete in place, as shown on the plans, as specified in the Standard Specifications and the Special Provisions, and all incidentals, as directed by the Engineer.

25. Payment for “Landscaping per Plan No. 18-112” will be made at the contract unit price for Item No. 25, per

Lump Sum, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in removing existing trees and shrubs 12-inch or smaller in diameter, removing existing trees larger than 12-inch in diameter, removing existing dead tree stumps, removing existing dead or alive bushes, planting 15 gallon trees planting 1 gallon ground cover shrubs, planting ground cover shrubs from Liners, planting 5 gallon screening shrubs, installing jute netting for erosion control in all planted areas, complete in place per Plan No. 18-112, including saw-cutting and disposing of trunk, limbs and roots, backfilling as necessary, grading and compacting the area, protecting in place existing adjacent areas and structures from potential falling branches and limbs, protecting in place overhead and underground utilities, removing and hauling away excess excavated material and construction debris, excavation, tree stakes, ties, mulch, planting mix, soil amendments, 90-day maintenance period (watering, weeding, trash removal), as specified in the Special Conditions, and all incidentals, as directed by the Engineer.

PI-5R

26. Payment for “Furnish and Install Irrigation System per Plan No. 18-112” will be made at the contract unit price for Item No. 26, per Lump Sum, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in the installation of a fully functioning irrigation system, complete in place and operational per Plan No. 18-112, including irrigation isolation valve point of connection equipment, reduced pressure backflow preventer (see Appendix C), PVC schedule 40 irrigation pressurized mainline buried 18-inch deep, PVC schedule 40 irrigation non-pressurized lateral lines buried 12-inch to 18-inch deep, automatic irrigation controller (see Appendix C), spray irrigation system with rotary sprinkler nozzles on 12-inch pop-up bodies, automatic irrigation valve, quick coupler valve and valve box, sprinkler heads, flow meter/master valve assembly, coordinating with GWP inspection (48-hours advance notice required), and all auxiliary equipment, as specified in the GWP Standards and Standard Drawings, Special Conditions, and all incidentals, as directed by the Engineer.

27. Payment for “Adjust/Replace Centerline Tie *” will be made at the contract unit price for Item No. 27, per Each, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in replacing and/or adjusting the existing centerline tie to new finished grade, complete in place, as shown on plans, including excavation, saw cutting, removing and disposing of all construction debris, repaving, perpetuation and reestablishment of all survey markers including filing documents (corner records, tie sheets, etc.) with the County of Los Angeles, and all incidentals, as directed by the Engineer.

28. Payment for “Adjust/Replace Property Corner *” will be made at the contract unit price for Item No. 28, per Each, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in replacing and/or adjusting the existing property corner to new finished grade, complete in place, as shown on plans, including excavation, saw cutting, removing and disposing of all construction debris, repaving, perpetuation and reestablishment of all survey markers including filing documents (corner records,

29. Payment for “Adjust/Replace Bench Mark *” will be made at the contract unit price for Item No. 29, per

Each, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in replacing and/or adjusting the existing bench mark to new finished grade, complete in place, as shown on plans, including excavation, saw cutting, removing and disposing of all construction debris, repaving, perpetuation and reestablishment of all survey markers including filing documents (corner records,

30. Payment for “Adjust/Replace Survey Well Monument *” will be made at the contract unit price for Item No.

30, per Each, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in replacing and/or adjusting the existing survey well monument to new finished grade, complete in place, as shown on plans, including excavation, saw cutting, removing and disposing of all construction debris, repaving, perpetuation and reestablishment of all survey markers including filing documents (corner records, tie sheets, etc.) with the County of Los Angeles, and all incidentals, as directed by the Engineer.

31. Payment for “Regrade and Construct Brick Driveway to Match Existing *” will be made at the contract unit price for Item No. 31, in Square Foot, which shall include all costs for furnishing all labor, materials, tools, and equipment, and for doing all the work involved in grading, backfilling, and installing brick driveway, complete in place, as shown on the plans, including removing and hauling away excess excavated material and construction debris, removing litter, debris and vegetation, providing brick to match existing driveway, removing and regrading adjacent landscape area, retaining curbs, new landscaping, modification of irrigation system, and all incidentals, as directed by the Engineer.

Items marked with a (*) indicates that quantities shown are for bidding purposes only. These items and quantities may or may not be used, at the discretion of the engineer. The Engineer shall determine the exact locations and quantities, if any, where the above quantities will be needed.