Addendum 1 - Final~1.pdf

Ivy Morton Water Line – Project 2014-04

Addendum 1

Part 1 – Bid Submission

Throughout document, replace date of bid submission shown as Tuesday, December 5th to Tuesday, December 19th. All other information to remain the same (time, location, methodology, contacts).

Part 2 – Surveying

A line item has been added to the bid schedule for survey work. For this project the Contractor is expected to perform all survey work, to include right of way and easement marking, pipeline route marking and as built survey (location and depth).

Please modify language in the Oregon Standard Specifications as follows:

Section 00150 – Control of Work

Comply with Section of 00150 of the Standards Specifications modified as follows and as shown elsewhere in the Special Provisions.

00150.15(b) Agency Responsibilities - Replace this subsection, except for the subsection number and title, with the following:

The Engineer will perform the Agency responsibilities described in the Construction Surveying Manual for Contractors, Chapter 1.5 (see section 00305). Note that existing datum provide sufficient information for Contractor to establish horizontal and vertical control and no further work for Agency is envisioned to establish such control.

00150.15(c) Contractor Responsibilities – Replace this subsection except for the subsection number and title, with the following:

The Contractor shall perform the Contractor responsibilities described in the Construction Surveying

Manual for Contractors, Chapter 1.6 (see section 00305).

The Contractor shall perform slope staking, including intersections and set stakes defining limits for work area limits which approximate Right-of-way, easement and pipeline alignment. Contractor shall also perform an as built survey to include pipeline route (including blow off valves and hydrants) and burial depth.

Part 3 – Rock Clause

If hard rock, defined as material which can not be loosened with a pick or removed by a backhoe or similar equipment and which is larger in size than .5 cu yards is encountered, Contractor shall cease work and immediately notify Engineer or their designated representative on site. Upon agreement with

Engineer or their designate that hard rock has been encountered, removal of such rock shall be paid according to the unit rate established in the bid schedule. Volume of rock removed under the bid schedule shall be agreed upon at the time of removal by Contractor and Engineer and appropriately documented. No additional payment for removal of hard rock shall be made.

Part 4 – Cut and Fill, Ivy Lane to Top of Pipeline

It is understood that some type of accessway will need to be constructed from the current end of Ivy

Lane to the top of the slope at which the pipeline will turn and run down hill to Waterline Rd. Contractor shall endeavor to minimize the size of this accessway. Construction shall adhere to the requirements of the Ashland Municipal Code. Sections of the Ashland Municipal Code attached below may not fully encompass the requirements of the work and Contractor shall be responsible for reviewing all of the

Ashland Municipal Code to confirm adherence to requirements.

Excerpts from the Ashland Municipal Code

18.3.10.090.B.4.b. Exposed cut slopes, such as those for streets, driveway accesses, or yard areas, greater than seven feet in height shall be terraced. Cut faces on a terraced section shall not exceed a maximum height of five feet. Terrace widths shall be a minimum of three feet to allow for the introduction of vegetation for erosion control. Total cut slopes shall not exceed a maximum vertical height of 15 feet. The top of cut slopes not utilizing structural retaining walls shall be located a minimum setback of one-half the height of the cut slope from the nearest property line. See Figure 18.3.10.090.B.4.b.

https://ashland.municipal.codes/LandUse/18.3.10.090.B.4.b#Fig18.3.10.090.B.4.b

Figure 18.3.10.090.B.4.b. Cut and Fill

18.3.1.090.B.5. Grading – Fill. On all fill slopes on lands classified as Hillside Lands, the following standards shall apply:

a. Fill slopes shall not exceed a total vertical height of 20 feet. The toe of the fill slope area not utilizing structural retaining shall be a minimum of six feet from the nearest property line.

b. Fill slopes shall be protected with an erosion control netting, blanket or functional equivalent.

Netting or blankets shall only be used in conjunction with an organic mulch such as straw or wood fiber.

The blanket must be applied so that it is in complete contact with the soil so that erosion does not occur beneath it. Erosion netting or blankets shall be securely anchored to the slope in accordance with manufacturer’s recommendations.

Part 5 – Tree Protection

A unit rate has been added to the bid schedule for installation of protective fencing around trees designated as protected by the Engineer.

Part 6 – Update Bid Schedule

Below is an updated bid schedule reflecting changes made in this addendum. The form below shall be submitted with the bid. Use of the previous bid schedule will be considered non-responsive.

Bid Item Spec No Item Description Unit

Unit

Quantity

Unit

Price

Total

Price

1 210

MOBILIZATION/DEMOBILIZATION (5% OF

CONSTRUCTION COST) LS 1

2 221

TEMPORARY PROTECTION AND DIRECTION OF

TRAFFIC LS 1

3 280 EROSION AND SEDIMENT CONTROL LS 1

00280

02320 CONSTRUCTION ENTRANCE, TYPE 1 EA 1

5 1160 HYDRANT ASSEMBLY EA 2

6 1150 DUCTILE IRON 12" GATE VALVE EA 7

7 1140

12" DIAMETER DUCTILE IRON POTABLE WATER PIPE

WITH CLASS B BACKFILL LF 1885

8 645 RECYCLED ASPHALT PRODUCTS IN BASE, 6" THICK SQYD 105

9 1140 BLOWOFF ASSEMBLY, 2" EA 1

10 NA PIPE SUPPORT PIER CUYD 0.8

11 620 COLD PLANT ASPHALT REMOVAL, 3" DEEP SQYD 20

12 445 CONCRETE PIPE SLOPE ANCHORS EA 13

13 330 14" PIPE REMOVAL LF 507

14 330 FILL ABANDONED 14" PIPE WITH CLSM CUYD 30

15 610

RECONDITION EXISTING ROADWAY BY CAPPING

ROAD SURFACE WITH 3" OF 1"-0 MINUS CRUSHED

ROCK & ADDITIONAL FILL TON 190

16 1140

DUCTILE IRON REDUCER 12" CONNECTION TO 8"

CONNECTION EA 1

17 1140

DUCTILE IRON REDUCER 12" CONNECTION TO 6"

CONNECTION EA 1

18 1140 DUCTILE IRON PIPE TEE, 12" X 12" EA 2

19 1140

INSTALL HAND TRACER WIRE HANDHOLE ACCESS

POINT EA 1

20 1140

WATERLINE PIGGING, HYRDO-TESTING, BACTERIAL

TESTING AND DISINFECTION EA 1

21 290 REMOVE EXISTING TREES EA 15

22 NA POTHOLES EA 60

23 NA REMOVAL OF HARD ROCK CUYD 10

24 150 PERFORM SURVEY WORK LS 1

25 290.42 TREE PROTECTION FENCING LF 500