Viewing inquiries for 04-294944

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Inquiry #1: Sheet RC-10 states "Remove Exotic or Invasive Brush and Shrubs (See Special Provisions). I can locate nothing about this in the Special Provisions. Can you please direct me where I can find this information.
Inquiry submitted 05/05/2014

Response #1:Submitted for consideration.
Response posted 05/06/2014


Response #2:The following sections of the SSPs contain information regarding Noxious Weed removal:

Page 18, reference to Section 20-1.01B
Page 19, Add to Section 20-1.03C(3)

Please also see the Information Handouts for identification of noxious weeds.

Response posted 05/09/2014




Inquiry #2: An error shows when downloading the plans. Please upload good plans.
Inquiry submitted 05/06/2014

Response #1:I did not encounter any errors or problems downloading the plans.

May I suggest doing the following:

1) Download the file before viewing it. Right-click on the link below and save it in your computer. Open the file with your pdf viewer, like Adobe Readear.



2) Ensure you have the latest pdf viewer.
Response posted 05/06/2014




Inquiry #3: The Special Provisions on page 5, bid items 42 to 43, show two irrigation controller, 24-32 and 12 stations, respectively. The irrigation plan on sheet 29, IP-5, shows the 24 and 12 station controllers. The irrigation plans on sheet 28, IP-4, also show an irrigation controller at approximately line "R",station 195. However, the plans do not specify how many stations are require for the controller .
Please clarify the number of stations required for the controller. Is this controller part of this project? Under what item will this controller be paid?

Inquiry submitted 05/08/2014

Response #1:Submitted for consideration.
Response posted 05/09/2014


Response #2:There is an irrigation controller symbol that was mistakenly left on IP-4, Sheet number 28.
Response posted 05/15/2014




Inquiry #4: The Special Provisions on page 5, bid items 55 to 60, call for a total final quantity of 68,704 LF of plastic pipe. However, I counted over 78,000 LF of plastic pipe.
Please clarify if the pipe quantities need to be increased. Should the pipe quantities be over 78,000 LF?

Inquiry submitted 05/15/2014

Response #1:Submitted for consideration.
Response posted 05/16/2014


Response #2:Pipe quantity for the irrigation system is shown in the List of Bid Items (items 44 to 46, and 55 to 60) and on the Irrigation Quantity sheets of the plan set. Pipe for irrigation systems will be final pay. Bidders are instructed to bid accordingly.
Response posted 05/21/2014




Inquiry #5: The Special Provisions on page 14 call for risk level 2 project.
Please clarify for how long is the contractor required to perform SWPPP inspections. Are the SWPPP inspections/reports end at the end of construction or does it continue for the duration of plant establishment? Is the contractor required to inspect and report SWPPP weekly during plant establishment?

Inquiry submitted 05/29/2014

Response #1:Submitted for consideration.
Response posted 06/02/2014


Response #2:If at the end of construction (planting work and associated soil disturbance) the project receives Water Board approval on the notice of termination from coverage under the Construction General Permit, then inspections/reports would cease for the remainder of the Plant Establishment Period. If the notice of termination is not obtained, then, inspections would continue during plant establishment until a notice of termination is obtained.
Response posted 06/03/2014




Inquiry #6: The irrigation plans on sheets 25 to 34, IP-1 to IP-10, show 8 cam couplers. The irrigation sheet on 28 also show an existing 2 inch water meter on the Oakland side of the project. However, all of the water trucking for the cam couplers will be done for the Orinda side.

Please clarify if there will be any restrictions on water usage from the existing water meter for the construction and 3 years of plant establishment given the state drought.

Inquiry submitted 05/30/2014

Response #1:Submitted for consideration.
Response posted 06/02/2014




Inquiry #7: Pop up sprinkler on irrigation legend ISS-1 does not show height of pop up nor does it show swing joint type that is called out in special provisions 20-2.10B(2) Pop up sprinkler.

Please clarify this bid item:

Inquiry submitted 06/02/2014

Response #1:Submitted for consideration.
Response posted 06/02/2014


Response #2:Desired pop-up height for shrub spray is 12". Swing joints are per pop-up detail for sprinkler assembly (Type II) as shown on Standard Plan RSP H6.
Response posted 06/03/2014




Inquiry #8: Rock Blanket has two details shown in plans. Sheet LD-1 shows rock blanket and sheet H9D shows rock blanket layout.
these two detail have different call out's for base of concrete and depth of excavation? which detail is correct?

Inquiry submitted 06/02/2014

Response #1:Submitted for consideration.
Response posted 06/02/2014


Response #2:The detail shown on sheet LD-1 for Rock Blanket takes precedence over the one included on Standard Plan sheet.
Response posted 06/03/2014




Inquiry #9: There are several reference's made in the special provisions regarding the use of reclaimed water markings. We have seen nothing to indicate the use of reclaimed water at this site. Is this correct?
Inquiry submitted 06/02/2014

Response #1:Submitted for consideration.
Response posted 06/02/2014


Response #2:The project includes an existing potable water meter located at the Caldecott Tunnel complex, and is assumed to be the primary water source for the project. If recycled water is used for truck watering to irrigate planting on the Orinda side of the project, then all irrigation facilities that receives recycled water must be identified as noted in the special provisions.
Response posted 06/03/2014




Inquiry #10: The Roadside Clearing Plans from sheet 14 to 23, RC-1 to RC-10, show the limits of the roadside clearing. The standard Specifications on page 59 of 324 also call for roadside clearing by doing the following:
1. Removing and disposing of trash and debris
2. Controlling the following pests:
2.1. Rodents
2.2. Insects
2.3. Weeds
3. Removing existing plants as described
We like to point out that the roadside clearing is over 104 acres and on a very congested traffic area.
Please confirm that we are required to remove trash and debris regardless whether or not it was generated by the construction activities. How is the contractor required to control rodents if no rodenticides are allow?

Inquiry submitted 06/02/2014

Response #1:Submitted for consideration.
Response posted 06/03/2014


Response #2:Project plans and special provisions for Roadside Clearing are to be followed as shown and written.

Rodents may be controlled by mechanical means such as traps or ultrasound devices or by construction of exclusionary structures such as foliage or root protectors. Rodenticides are not permitted on this project to avoid accidental or secondary poisoning of nontarget wildlife species.

Response posted 06/04/2014




Inquiry #11: There is very little information given regarding the new irrigation controllers, except for stations required? What type of controllers are they using currently in the area, Rainbird, Rainmaster, Calsence, wheathermatic? If were all just bidding the standard specifications, the bids will be all over the place. Normally Caldot projects at least specify the controller type and equipment required for the project.
Inquiry submitted 06/03/2014

Response #1:Submitted for consideration.
Response posted 06/03/2014


Response #2:Requirements for irrigation controllers is noted in section 20-7 of the Revised Standard Specifications (RSS).
Response posted 06/04/2014




Inquiry #12: Wood Mulch needs to be clarified, which type of mulch is required on this project. Special provisions under materials 20-5.03E (a,b,c,d) List all mulch type's. If it is contractors choice of course we will bid and supply tree trimming (green waste) type mulch as its the cheapest, Why would the state not list the type required??
Inquiry submitted 06/03/2014

Response #1:Submitted for consideration.
Response posted 06/03/2014


Response #2:Mulch type is described in the Plant List.
Response posted 06/04/2014




Inquiry #13: Query 1
Bid Item 38 gives a total of 11 3/4" Remote Control Valves but I count only 7 on the plans. Similarly, Bid Item 40 for 2" RCV has a quantity of 2 but there is only 1 and Bid Item 52 for Drip Zone Assembly has a quantity of 12 but there are 13 on the plans.
Also Bid Item 49 for Flow Sensor has a quantity of 1 But there are actually two, and there is no bid item for the two RCVM shown on Plan Sheet IP-4.

Query 2
Is the 620 LF of 3" Galvanized Steel Pipe shown on Plan Sheet IP-5 Which is NOT being attached to the tunnel structures intended run on grade or to be buried? The slopes above the tunnels seem to be mostly rock.

Query 3
On Page 26 of the Special Provisions states:
Replace the 2nd sentence in the 1st paragraph of section 20-3.01B(3) of the RSS for section 20
with:
Soil amendment must be medium or coarse particle size compost under section 21-1.02M.
Section 20-3.01B(3) of the RSS states:
Soil amendment must comply with the requirements in the Food & Agri Code. Soil amendment must be
one or a combination of the following:
1. Sphagnum peat moss
2. Nitrolized fir bark
3. Vermiculite
4. Perlite
Is it the intent that everything past "Soil amendment must comply with the requirements in the Food & Agri Code" in Section 20-3.01B(3) of the RSS be deleted?
Is it the intent that the soil amendment meet the specifications of 21-1.02M in it's entirety, or only the particle size limits given for medium and coarse compost show on the table?



Inquiry submitted 06/04/2014

Response #1:Submitted fcr consideration.
Response posted 06/04/2014




Inquiry #14: The rock blanket detail on sheet 35, LD-1, shows expansion joints. However, it does not give any other information.
Please clarify the thickness of the expansion joint. What depth is the expansion jointed required?

Inquiry submitted 06/04/2014

Response #1:Submitted for consideration.
Response posted 06/05/2014


Response #2:Expansion joints are covered under Section 73 of the Standard Specifications.
Response posted 06/05/2014




Inquiry #15: The rock blanket detail calls for mortar between the cobbles. However, is does not show any other information.
Please clarify the thickness of the mortar layer between the cobbles.

Inquiry submitted 06/04/2014

Response #1:Submitted for consideration.
Response posted 06/05/2014


Response #2:Expansion joints are covered under Section 73 of the Standard Specifications.
Response posted 06/05/2014




Inquiry #16: The irrigation plans on sheet 25 to 34, IP-1 to IP-10, require to install a 3 inch galvanized steel pipe from one side to the other side of freeway. The plans also call for the pipe to be attach to the structure. In addition, the Special Provisions on page 5, items 44 and 45, both call for 3 inch galvanized steel pipe.
Please clarify if we all the galvanized steel pipe on items 44 and 45 are to be install on the bridge. Is there a conduit on all along the galvanized steel pipe? Or is just partially install on parts of it? If item 45 is pipe on bridge, where is item 44 pipe install? Is item 44 also pipe on bridge? Will the contractor have top access to the bridge at night when most likely the pipe will be install on bridge?

Inquiry submitted 06/04/2014

Response #1:Submitted for consideration.
Response posted 06/05/2014




Inquiry #17: It looks like there is some rock blanket already install on some of the locations required.
Please clarify if the contractor has to remove the existing rock blanket in order to install the new one. Under what item will the removal be paid?

Inquiry submitted 06/04/2014

Response #1:Submitted for consideration.
Response posted 06/05/2014




Inquiry #18: The Special Provisions on page 5, bid item 54, calls for 11 each 3 inch gate valve. Note 3 on the irrigation plans on sheet 25, IP-1, states the following: Ball valves and gate valves must be 3" unless otherwise shown. The irrigation plan on sheet 33, IP-9, calls for the installation of 2 gate valves and 2 ball valves for a total of 13 gate valves.
Please clarify if there should be 13 gates valves. Are the two extra gate valves different sizes?

Inquiry submitted 06/04/2014

Response #1:Submitted for consideration.
Response posted 06/05/2014




Inquiry #19: Bid item #22 Rock Blanket: Legend on Page LQ-1 indicates rock blanket on page 5 OL2 Line 228+40 to 234+10 has an area of 2,000 SQYDs. Roadway Excavation column indicates excavation of 1166CY of material(which is mostly small rock cobble). To excavate this qty in this area 18,000SF, We would have to excavate 21" of Material to equal this QTY. If we bid this job per plans and details, Detail shows we only have to excavate 7" of material to make base line pour for the rock installation. This indicates that you want us to re-grade this area to facilitate the installation of the rock blanket more on a flattened plane. If this is correct, you need to add a bid item for the re-grading and export of this entire area. There are no grading plans attached to this contract that show existing or future finished surface elevations. Please Clarify this issue. As to the depth of the excavation for the placement of the Rock Blanket
Inquiry submitted 06/05/2014

Response #1:Submitted for consideration.
Response posted 06/05/2014




Inquiry #20: Special Provisions provides Clearing and Grubbing Spec section. There is no pay item for that work. Are you going to provide a pay item or will this work be placed under the Roadside Clearing pay item?
Inquiry submitted 06/09/2014

Response #1:Submitted for consideration.
Response posted 06/09/2014


Response #2:In Section 19-1.01A, "Earthwork activities include clearing and grubbing, developing a water supply, and finishing the roadway. Comply with sections, 16, 17-2 and 22." Earthwork is covered under Rock Blanket.
Response posted 06/10/2014




Inquiry #21: Plan sheet 55 "In EC Type 1 areas fiber rolls must be installed after RECP (Netting) and before hydroseed." I can find no reference in the specs or plans as to what type Netting should be used A,B or C?
Inquiry submitted 06/30/2014

Response #1:Submitted for consideration.
Response posted 06/30/2014


Response #2:If there is no item for hydroseed or netting, ignore the sequence instructions on plan sheet #55.
Response posted 07/01/2014






The information provided in the responses to bidder inquiries is not a waiver of Section 2-1.03, “Examination of Plans, Specifications, Contract, and Site of Work,” of the Standard Specifications or any other provision of the contract, nor to excuse the contractor from full compliance with the contract. Bidders are cautioned that subsequent responses or contract addenda may change a previous response.