89-R-31RESOLUTION NO. 89-R-31
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
EDGEWATER, FLORIDA, AUTHORIZING THE APPROPRIATE
OFFICIALS OF THE CITY OF EDGEWATER, TO EXECUTE
AMENDMENT NO. 1989-9, "ENGINEERING SERVICES ASSOCIATED
WITH THE DEVELOPMENT OF A STORMWATER MASTER PLAN FOR
THE CITY OF EDGEWATER" WITH DYER, RIDDLE, MILLS 5
PRECOURT, INC.; REPEALING ALL RESOLUTIONS IN CONFLICT
HEREWITH AND PROVIDING FOR AN EFFECTIVE DATE.
NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE
CITY OF EDGEWATER, FLORIDA:
SECTION 1. That the City Council of the City of Edge-
water, Florida, authorizes the appropriate officials of the City
of Edgewater, Florida, to execute Amendment No. 1989-9, "Engineer-
ing Services Associated With The Development of a Stormwater
Master Plan for the City of Edgewater" with Dyer, Riddle, Mills &
Precourt, Inc.
SECTION 2. A copy of said Amendment is attached to this
Resolution and by reference incorporated herein as if fully set
forth and marked Exhibit "A".
SECTION 3. That all resolutions or parts of resolutions
in conflict herewith be and the same are hereby repealed.
SECTION 4. That this Resolution shall take effect immedi-
ately upon its adoption by the City Council of the City of Edge-
water, Florida, at a special meeting of said Council
held on the 15th day of May , 1989, and ap-
proved as provided by law.
This Resolution was introduced and sponsored by Councilman
Fish , and was read and passed by a vote of the
City Council of the City of Edgewater, Florida, at a special
meeting of said Council held on the 15th day of May ,
1989, and approved as provided by law.
ROLL CALL VOTE AS FOLLOWS -
Mayor
Counci man- on ne
ounci fman-Zone Two
Counm an-Zonnee Three
C cilman-Zone Four
1989.
This Resolution Prepared by:
City Attorney
AMENDMENT NO. 1989-9
ENGINEERING SERVICES ASSOCIATED WITH THE
DEVELOPMENT OF A STORMWATER MASTER PLAN
FOR THE CITY OF EDGEWATER
This AMENDMENT made and entered into tlis 15th day of May, 1989, amends
the consulting engineering AGREEMENT for professional services between the CITY
COUNCIL OF THE CITY OF EDGEWATER, FLORIDA (hereinafter referred to as
"CITY"), and DYER, RIDDLE, MILLS 6r PRECOURT, INC. (hereinafter referred
to as "CONSULTING ENGINEER") to perform engineering services relative to the
development of a Comprehensive Stormwater Master Plan for the CITY;
WHEREAS, this AMENDMENT shall incorporate all of the conditions and
requirements of the original CONTRACT between the CONSULTING ENGINEER
and the CITY, dated October 19, 1987;
Provisions delineated in the October 19, 1987 AGREEMENT shall remain in
full force without modification. In case of conflict this AMENDMENT shall prevail.
This AMENDMENT provides for certain professional ccrsulting engineering services
relative to the CITY's stormwater system. The services provided in this AMENDMENT
include, but are not limited to, providing data collection and analysis, stormwater
system simulation modeling, report preparation and submittal and recommendations
to the CITY regarding stormwater system improvements required.
As directed by the designated CITY representative to the CONSULTING
ENGINEER, confirmed by the CITY's work order, the scope of services and
professional engineering compensation as delineated in Exhibit A, "DAMP Work
Order Description" are made part of this AMENDMENT.
DRMP #87-400.20
IN WITNESS WHEREOF, the parties hereto have accepted, made and executed
this AMENDMENT No. 1989-9 upon the terms and cenditions stated in the
AGREEMENT dated October 19, 1987,
Dyer, Riddle, Mills & Precourt, Inc.
Witn C -
_1pQ E
Witness Vi a President
D 4 CITY OF EDGEWATER, FLORIDA
Witness
E
Witness Mayor
EXHIBIT A
FOR CITY OF EDGEWATER
DRMP WORK ORDER DESCRIPTION
Project Title: Edgewater Stormwater Master Plan
Project Objective: Dyer, Riddle, Mills & Precourt, Inc., (DRMP) will provide the
services as outlined below for the stormwater section of the Edgewater Capital
Improvement Program. This scope consists of an overview of the City's existing
drainage infrastructure and evaluation of needs within the City to alleviate or
minimize flooding conditions. In this process, DRMP will examine known problem
areas as well as anticipate drainage impacts from future development to ensure a
comprehensive approach by the City in stormwater management.
The three major objectives that will be achieved by proposing an overall Stormwater
Master Plan for the City are the following:
(1) Identify potential problem areas and possible causes of existing flooding within
the City and recommend modifications to existing drainage systems to minimize
the potential for flooding in the City.
(2) Establish Master Drainage Basin Boundaries and establish design criteria for
future development parcels or lots. This will provide the City with a basis for
review and the management of stormwater runoff from new developments and
help alleviate future flooding problems or avoid compounding flooding conditions
in existing problem areas.
(3) Secure the appropriate conceptual permit for an overall Master Drainage Plan
from the St. Johns River Water Management District (SJRWMD) and other
applicable regulatory agencies.
In order to accomplish these major goals the following phases and tasks are
presented:
Project Scope:
Task A - Data Gathering
Data gathering will consist of 4 separate collection methods, each designed to obtain a
broad range of useful information to adequately determine the hydrologic and
hydraulic functioning of the City's existing drainage systems.
Al Cit Records
The city Iles will be researched to seek out design information for all man-made
canals, ditches, swales, pipes, box culverts and other conveyance facilities.
Topographic information will also be sought, especially any existing drainage
boundary delineations.
A2 Interview Local Residents
Long time City residents will be interviewed to give their account of various
flooding events that they have encountered to help confirm problem areas within
the City.
A3 State h Federal __ta Records
Many state and federal agencies provide information that is very useful, such as
USGS maps, FIRM-FEMA maps, tidal records, rainfall hydrologic data, F.D.O.T.
as builts, USDA-S.C.S. soil maps, vegetative cover, and aerial maps.
A4 Survey Master Drains e System
a Static water elevations shall be determined in all ditches and canals. Spot
elevations shall be given wherever there: (i) appears to be a change in head
or water level due to obstructions; (ii) a distance interval of 5,000 feet is
exceeded or; (iii) as directed by the Engineer. If an obstruction is present,
it will be described and surveyed in detail. All elevations will give date
and time of day.
b) All water bodies, lakes, ponds, pits, etc., shall be surveyed for: (i) water
surface elevation giving date and time of day; and (ii) a few select top of
bank elevations as directed by the Engineer.
c) Any wetlands involved in the Master Drainage System shall be surveyed as
deemed necessary. Elevations will be required for normal standing water
levels and bottom of wetland elevations. The outfall path will be
established by survey if practical.
d) All pipes, culverts, and other major conveyance facilities of all ditches and
canals as they cross any roadway, right-of-way, easement etc., shall be
surveyed. Size, material length, invert elevations, physical condition and
water elevation shall be obtained at each location.
e) Cross sections of all ditches approximately 30 locations, will be provided
giving: (i) bottom elevation; (11) water elevation; (iii) top of bank elevation;
(iv) bottom width; and (v) top width.
f) Topographic spot elevations will be provided to verify Master Drainage
Basin boundary limits in areas of the City where record information is
insufficient.
A5 Soil Borings
In selected areas some shallow soil borings will be performed to establish an
estimated seasonal high ground water elevation.
A6 Field Investigation
The Engineer will conduct field trips to many actual locations to verify
vegetative cover and runoff characteristics of the watersheds. Visual
observations will be recorded and photographs taken.
Task B - Data Analysis
All data gathered will be analyzed using appropriate mathematical and computer
models to simulate basin runoff characteristics, staging in all reservoirs and ditches,
verifying flooding areas, and identifying where future problems may be anticipated.
BI Determine Static Floodin Areas
The areas that are chronically flooded because of poor design, high groundwater
table or adverse receiving water elevation will be identified. DRMP will propose
methods to modify the existing drainage systems to provide positive outfall for
all swales, ditches, and ponds.
B2 Determine Duna, a Flooding Areas
The areas that are flooded due to inadequate conveyance facilities during storm
events will be identified and conceptually designed to provide proper head loss
allowances.
Potential conveyance problems may include: improperly sized pipes, pipes
constricted by sediment, hydraulically "rough" material, swales and ditches
overgrown with vegetation, inverts of structures at adverse elevation,
inadequate cross -sectional area for swales, ditches, and canals, and others.
Dynamic flooding analysis will consist of two major computer -based models:
(a) Existing flood stages in all existing canals for major design storm events
prior to any modifications.
(b) Proposed flood stages in canals based on the implementation of the options.
Task C - Recommendations
After all data has been analyzed, several options will be formulated to manage the
overall drainage systems as well as specific trouble areas not managed in Phase 1. An
overall solution will be to correct static flooding on a "city wide" basis. Several
options will be discussed for correcting dynamic flooding in specific areas. Order of
magnitude cost estimates will be prepared in order to determine the most cost
effective solution. These recommendations and cost estimates will be presented in a
report in which the City may use to select appropriate future action.
COMPENSATION
The Stormwater Master Plan will be invoiced on a monthly basis in accordance with
the conditions and requirements of the original contract between DRMP and the City,
dated October 9, 1987. The total upset limit for this project is $193,000.00. See
Attachment 1 for estimated cost distribution.
NOTICE TO PROCEED
Engineering services shall occur within 10 days of award of contract and will proceed
for six (6) months.
r
ATTACHMENT 1
STORMWATER MASTER PLAN
COMPENSATION SUMMARY
Data Gathering $ 18,600
Drainage System Surveying 92,000
Data Analysis and Simulation Modeling 73,400
Static Conditions 10,400
Dynamic Conditions 63,000
Recommendations and Report Preparation 9,000
TOTAL $ 93,000