|
ITEM: |
CONSENT
CALENDAR |
||||
|
|
|||||
|
3. |
CONSIDER EXPENDITURE
TO CONTRACT FOR CONSTRUCTION AND RELATED SERVICES TO COMPLETE THE CARMEL
RIVER BANK STABILIZATION AT RANCHO SAN CARLOS ROAD PROJECT (CEQA: An Addendum for this project was
approved by the Board on March 19, 2018.) |
||||
|
|
|||||
|
Meeting
Date: |
July
16, 2018 |
Budgeted: |
Yes,
partially |
||
|
|
|||||
|
From: |
David J. Stoldt, General Manager |
Program/ |
Protect
Environmental Quality
|
||
|
|
|
Line
Item No.: |
2-2-1 |
||
|
|
|||||
|
Prepared
By: |
Larry
Hampson |
Cost Estimate: |
Up
to $907,000 |
||
|
|
|||||
|
General
Counsel Review: N/A |
|||||
|
Committee
Recommendation: The Administrative
Committee reviewed this item on July 10, 2018 and recommended approval. |
|||||
|
CEQA Compliance: An Addendum for this project was approved by the Board on March
19, 2018. |
|||||
SUMMARY: Staff
proposes to complete a streambank stabilization project along the Carmel River
downstream of the Rancho San Carlos Road Bridge, about four miles east of the
Pacific Ocean. Project work includes 300 cubic yards of excavation,
225 cubic yards of imported fill, import and placement of 950 tons of rock
riprap, installation of 160 lineal feet of log crib wall, installation of 60
lineal feet of logs and boulders, seeding and installation of erosion control
fabric. The District advertised
for bids during the month of June 2018 and received three bids, with the lowest
bidder being Empire Landscaping, Inc. at a cost of $517,365 as shown in Exhibit 3-A. Additional work and the total estimated costs
to construct the project with the low bidder are $632,000, which includes a
contingency amount of $82,635 or about 15% of the project cost. The cost of completing the project with the
next highest bidder is estimated at $907,000, which is $107,000 more than the
FY 2018-19 budget for the project.
RECOMMENDATION: The Board of Directors should take the
following action:
1. Authorize the
General Manager to enter into a contract with Empire Landscaping, Inc., for
construction of the Carmel River Bank Stabilization at Rancho San Carlos Road
Project at a cost of $517,365.
2. Authorize the
General Manager to approve service contracts for associated tasks for up to $32,000.
3. Authorize the
General Manager to approve change orders to the construction and service contracts
or for new service contracts for the Project to allow for unforeseen items up
to a total amount of $82,635.
4. Should the District
be unable to contract with Empire Landscaping, Inc, and need to contract with
the next highest bidder, the General Manager would be authorized to execute
contracts for up to $907,000.
DISCUSSION: The proposed Carmel River Bank Stabilization
at Rancho San Carlos Road Project (RSC Project) is located at River Mile 3.8
(measured from the Pacific Ocean) just downstream of the Rancho San Carlos Road
Bridge. The project area contains two eroding stream banks almost opposite from
each other. Concern for the stability of the right bank (looking downstream) on
APN 015-251-027, Moratz Property started in 2011 and
interim measures such as jute netting, willow planting, and irrigation were
carried out in an effort to stabilize the bank. In February of 2017, during a
high flow event of 9,570 cubic feet per second at the U.S.G.S Near Carmel gage,
the left bank along APN 157-121-027, Quail Lodge Property experienced
significant erosion and up to about 55 feet of streambank was eroded along 300
lineal feet.
During the high flows, numerous large
cottonwood trees toppled out of the river bank and culturally significant Santa
Barbara Sedge beds were lost. Currently, the left bank is vulnerable to erosion
from high flows because it has lost its protective vegetative cover and is on
the outside of a meander bend in an area that can erode during high flows. Because these vulnerable streambanks are so
close together, work on one bank can impact the other. Therefore, a
comprehensive project addressing both banks is being proposed.
A log crib wall will protect the most
severely damaged portion of the left bank.
Logs with rootwads and boulders will be placed
along the right side of the project area to protect the streambank. Disturbed areas will be seeded and replanted
with native riparian cuttings. An
irrigation system will be installed and maintained by the District.
Staff has applied for necessary permits from
local, state and federal agencies. At
their March 19, 2018 meeting, the Board of Directors adopted findings and
certified an Addendum to the Carmel River Management Program Environmental
Impact Report. MPWMD has requested affected
property owners enter into a 10-year maintenance and access agreement to carry
out the project. All authorizations will
need to be complete before the Contractor is given a Notice to Proceed with the
Project.
Table
1 – Summary of Costs for Low Bidder
|
$ 517,365
|
|
|
Establish Survey
Control |
$ 2,000 |
|
Inspection/testing |
$ 5,000 |
|
Record Drawings |
$ 25,000 |
|
Contingency
(15%) |
$ 82,635 |
|
Total |
$
632,000 |
The District received two additional bids
from the Mercer-Fraser Company for $794,980 and from Graniterock
for $799,677.50. The low bidder, Empire
Landscaping, Inc., clarified bid documents by informing the District about
which firms would be used for archeological monitoring and testing services.
Should the District be unsuccessful in
executing a contract with Empire Landscaping, Inc., the District could elect to
contract with the next highest bidder. The estimated costs of the project for
contracting with the Mercer-Fraser Company would be $827,000 and would include
a 10% contingency as shown in Table 2 below.
Table 2 – Summary
of Costs for Next Highest Bidder
|
Construction |
$
794,980 |
|
Establish Survey Control |
$ 2,000 |
|
Inspection/testing |
$ 5,000 |
|
Record Drawings |
$ 25,000 |
|
Contingency |
$ 80,020 |
|
Total |
$
907,000 |
IMPACTS ON STAFF AND RESOURCES: The FY 2018-19 budgeted amount for this
project is $800,000. Several District
staff will be involved in the project assisting with project management,
inspections, permit compliance, fish rescue, revegetation, and monitoring. The
work will be performed under the direction of the District Engineer.
EXHIBITS
3-A Bid for
Construction from Empire Landscaping, Inc.
3-B Email
correspondence concerning services
U:\staff\Boardpacket\2018\20180716\ConsentClndr\03\Item-3.docx