22-09_Information_Letter_No._5.pdf

STATE OF CALIFORNIA – CALIFORNIA NATURAL RESOURCES AGENCY GAVIN NEWSOM, Governor

DEPARTMENT OF WATER RESOURCES

P.O. BOX 942836

SACRAMENTO, CA 94236-0001

TO ALL HOLDERS OF

BIDDING DOCUMENTS ON

EMERGENCY RELEASE FACILITY

LAKE PERRIS

STATE WATER FACILITIES

CALIFORNIA AQUEDUCT

EAST BRANCH

SANTA ANA DIVISION

RIVERSIDE COUNTY

CALIFORNIA

SPECIFICATION NO. 22-09

CONTRACT NO. C51632

INFORMATION LETTER NO. 5

The following questions have been received for clarification. The Department of Water

Resources (DWR) answers are given immediately following the questions.

Question No. 1: What Stage is RW-2 (and right side of Abutment 1) at Lake Perris

Drive to be constructed in? It does not appear that the Temporary

Access Road accommodates this work.

Answer: RW-2 can be constructed during Stage 3 after the temporary road is removed. The Contractor may propose different staging plans if desired.

Question No. 2: Please confirm diameter of Class 90/140 Piles. Note on Sheet 325 calls out 1’-2” Pipe Pile, and Detail A2 on Sheet 334 calls out 1’-

4”OD.

Answer: Class 90 and Class140 Piles are 14" (1'-2") Piles. Please see

Addendum No. 1 Sheet No. 334, Detail A2, for revised pipe pile

OD.

Question No. 3: Please confirm Barrier Rail quantities/descriptions. On Sheet 310 end of RW2 (only location for Type 842A) calls out 53.85’ Rt and

35.5’ Rt which would make RW3 length and barrier quantity 18’.

This wall appears to be only around 8’ long which is consistent with

Item 165 quantity. Should Item 171 be described as Type 732SW

Docusign Envelope ID: 3A584689-2F5E-4A89-A42F-DDB304EC6591

8/2/2024

Specification No. 22-09

Information Letter No. 5

MOD D to be consistent with Items 168-170 as called out on Sheet

087?

Answer: Bid Item No. 165, Concrete Barrier Type 842A is correct. The right distance called out is with respect to different reference line. Bid

Item No. 171, Concrete Barrier Type 732SW is as shown on Sheet

No. 310.

Question No. 4: Re: 02525-4 – Steel Casing Pipe

We are asking to allow polyurethane coating per AWWA C222 be allowed as an alternate to AWWA C213 and C214 Exterior surfaces of welded steel pipe shall be cleaned and coated in conformance with the requirements in ANSI/AWWA C213 or at the option of the

Contractor, cleaned, primed, and coated in accordance with specifications of ANSI/AWWA C214.

Answer: No.

Question No. 5: Please confirm that the Rigid Metal Conduit in the Barrier is paid with Barrier.

Answer: Yes, please refer to Section 03340 – Concrete Barriers and

Handrailing, Paragraph 1.01 B.

Question No. 6: Is class 1 surface finish required on the underside of the slab deck for Lake Perris Drive Bridge and Evans Road Bridge?

Answer: Class 1 surface finish is not required for undersurfaces of bridge deck for Evans Road Bridge & Lake Perris Drive Bridge. Ordinary surface finish is acceptable for the bridge deck undersurfaces, as stated in Specification Section 03345 – Concrete Finishing and

Curing (Bridges), Paragraph 3.02 B.

Question No. 7: Is Bid Item 154 TEMPORARY SUPPORTS intended to be for a falsework system for the closure pour? If not, will this be paid under bid item 153 FALSEWORK?

Answer: Temporary support is a localized falsework system that will be used for Evans Road Bridge deck closure pour, as shown on Drawing

Sheet No. S-501. Payment for Temporary Support will be under

Bid Item No. 154, Temporary Support.

Question No. 8: Is the reinforcing steel for the general structural concrete paid under bid item 160 STRUCTURAL CONCRETE – GENERAL or bid item 156 REINFORCING STEEL BARS?

Answer: Reinforcing steel for the general structural concrete will be paid under Bid Item No. 156, Reinforcing Steel Bars.

Question No. 9: Are sump pads paid for under bid item 160 STRUCTURAL

CONCRETE – GENERAL?

Answer: The Equipment Pads at the new sump location are paid under Bid

Item No. 160, Structural Concrete - General as specified in

Specification Section 03300 – Cast-in-Place Concrete, Paragraph

1.01 B.

Question No. 10: What is the method of installation for the steel casing items? The standard detail shown on Drawing No. C-815 states "The steel casing shall be installed by means of jacking or dry boring, except where specifically noted on the plans to be installed by open trench construction". Although not specifically called out, the type of installation may be better suited as "Open Trench Construction".

Answer: Steel casing may be installed by open trench construction.

Awarded contractor shall submit casing installation plan for review and approval. Section 02525 – Steel Casing Pipe will be revised in a forthcoming Addendum No. 2.

Question No. 11: Please consider making the bid due at 2PM so that contractors have ample time on bid day.

Answer: No, bids are due no later than 11:00 AM on Bid Opening Day.

Question No. 12: Per section 00220, is the contractor required to submit escrow documents for this project?

Answer: Yes, as specified in Document 00220 - Instructions for Depositing

Bid Documentary Information, Paragraph 1.D.2) The apparent low responsive and responsible bidder shall deliver documents within three days, excluding Saturdays, Sundays and holidays after the bid opening. The second and third apparent low responsive and responsible bidders shall deliver documents within three business days, excluding Saturdays, Sundays and holidays from the date of written notification by the Department.

Question No. 13: Please confirm that the drop structure may not be poured monolithically, and that the contractor will pour one step at a time.

Answer: The drop structure shall be placed with construction joints as shown on Drawing No. S-202 and Drawing No. S-207.

Question No. 14: Can DWR provide a summary of the Drawing changes in

Addendum No. 1?

Answer: Addendum No. 1 reflects changes made to 88 contract drawings.

The majority of changes were required based on recent roadway improvements made along Evans Road north of Ramona

Expressway and comments received from Eastern Municipal Water

District (EMWD). In addition, contours were updated for C-300s and

C-400s drawings based on updated topography and the vertical alignment of the Penstock Drain Line shown on C-1800s was revised. Other changes include miscellaneous items such as typos and general clean up.

If there are additional questions, please send to doe_specs@water.ca.gov.

Sincerely, Judy Li, Manager Contract Coordination Section Division of Engineering mailto:doe_specs@water.ca.gov