HomeMy WebLinkAbout12 - CC-8 - Professional Engineerring Services for - 7/1/2014CITY COUNCIL AGENDA REPORT
MEETING DATE: JULY 1, 2014 ITEM NUMBER:
SUBJECT: PROFESSIONAL ENGINEERING SERVICES FOR THE DESIGN OF ARLINGTON DRIVE
BIOSWALE AND DRY WEATHER DIVERSION PROJECT
DATE: JUNE 19, 2014
FROM: PUBLIC SERVICES DEPARTMENT/ENGINEERING DIVISION
PRESENTATION BY: ERNESTO MUNOZ, PUBLIC SERVICES DIRECTOR
FOR FURTHER INFORMATION CONTACT: FARIBA FAZELI, CITY ENGINEER, (714) 754-5335
RECOMMENDED ACTION:
Award a contract to KABBARA Engineering, 121 North Harwood Street, Orange, CA 92866, in an
amount not to exceed $208,863.00 for design services, and authorize the Mayor and the City
Clerk to execute the Professional Services Agreement (Attachment 1).
BACKGROUND:
The City's Master Drainage Plan was last updated and adopted by the City Council in August
2006. As part of the update, a hydrology analysis was conducted for the entire City that
identified several watersheds for which existing storm drain systems are in need of upgrade.
The watershed bounded by Fair Drive, Fairview Road, Newport Frontage Road (southbound),
and Arlington Drive (part of watershed 17) has been identified by the Master Drainage Plan as
one of the drainage areas in need of upgrade.
The existing system was constructed decades ago and is undersized for the current volumes of
runoff produced during wet seasons, which lead to frequent flooding in this area. Staff applied
for and captured approximately $1.8 million for this project from the Orange County
Transportation Authority (OCTA) Measure M2, Environmental Cleanup, Tier 2 Grant Program.
This project proposes construction of a linear park -like area with a vegetated bioswale and a
multipurpose bike trail along the south side of Arlington Drive from Newport Frontage Road for
approximately half a mile to the west (towards Fairview Road). Where feasible, Arlington Drive
will be narrowed to two lanes, one lane on each direction. The removal of asphalt will reduce
runoff caused by the impervious roadway, collect it in the bioswale, and infiltrate it into the soil.
Vegetated swales are open, shallow channels with vegetation covering the side slopes and
bottom that collect and slowly convey runoff flow to downstream discharge points. They are
designed to treat runoff through filtering by the vegetation in the channel, filtering through a
subsoil matrix, and/or infiltration into the underlying soils. Swales can be natural or manmade,
and trap particulate pollutants (suspended solids and trace metals), promote infiltration, and
reduce the flow velocity of storm water runoff. Vegetated swales can serve as part of a storm
water drainage system and can replace curbs, gutters and storm drain systems.
ANALYSIS:
Staff advertised the project for the engineering phase and received two proposals on April 25,
2014. The proposals were reviewed for compliance with the City's Request For Proposals
(RFP), and the consultants were evaluated based on project understanding, depth of
experience, technical expertise, ability to meet the schedule, and associated factors.
The scope of services consists of preparation of construction documents (plans, specifications
and cost estimates) for a landscaped linear park -like open space with a multipurpose bike trail
and a bioswale; conducting community meetings and public outreach; soil testing, design
survey, hydrology study, hydraulic calculation, asphalt and concrete work, landscaping, street
parking study and proposed street parking layouts on Junipero Drive, striping plans,
environmental processing and all other pertinent work as required.
After careful review of the proposals, staff has selected Kabbara Engineering as well qualified
to perform the work. The firm's Project Manager exhibited a thorough understanding of the
project and documented technical ability and experience with similar projects in the City, as well
as other jurisdictions. Staff has determined the proposed cost for consultant services,
$208,863, to be reasonable for meeting the City's requirements as listed in the Scope of
Services.
ALTERNATIVES CONSIDERED:
The alternative to this Council action would be to not award a preliminary engineering services
contract for the stated project and perform the preliminary engineering work with City staff. Due to
the volume of work and the large number of projects currently being handled by the Engineering
Division, a significant delay in implementing this project would be experienced if staff were to
perform the engineering in-house. Delays are estimated to be from twelve to fifteen months and
will jeopardize the grant requirement of awarding the construction contract before July 1, 2015.
Therefore, this alternative is not recommended.
FISCAL REVIEW:
In Fiscal year 2014-2015 City Council allocated $2.09 million from Drainage Fees and Measure
M Funds towards the design and construction of this project.
LEGAL REVIEW:
The City Attorney has reviewed and approved the attached Professional Services Agreement
(Attachment 1) as to content and form.
CONCLUSION:
It is recommended that the City Council award the design services contract to KABBARA
Engineering in an amount not to exceed $208,863 and authorize the Mayor and City Clerk to
execute the Professional Services Agreement.
FARIBA FAZELI
City Engineer
ERNESTO MUNOZ
Public Services Director
E
Attachment: 1- Professional Services Agreement
Distribution: Chief Executive Officer
Assistant CEO
Economic & Dev. Director/Deputy CEO
City Attorney
Finance Director
City Clerk