R2017-072 2017-04-10RESOLUTION NO. R2017-72
A Resolution of the City Council of the City of Pearland, Texas, authorizing the
City Manager or his designee to enter into a contract with Halff Associates, in
the amount of $266,335.00, for professional services associated with the City
of Pearland and Brazoria Drainage District No. 4 Joint Master Drainage Plan
Project — Phase II.
BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF PEARLAND, TEXAS:
Section 1. That certain contract by and between the City of Pearland and Halff
Associates, a copy of which is attached hereto as Exhibit "A" and made a part hereof for all
purposes, is hereby authorized and approved.
Section 2. That the City Manager or his designee is hereby authorized to execute and
the City Secretary to attest a contract with Half Associates, for professional services associated with
the City of Pearland and Brazoria Drainage District No. 4 Joint Master Drainage Plan Project —
Phase II.
PASSED, APPROVED and ADOPTED this the 10'" day of April. A.D., 2017.
ATTEST:
FING,
Y S:' RETARY
APPROVED AS TO FORM:
DARRIN M. COKER
CITY ATTORNEY
TOM REID
MAYOR
Resolution No. R2017-72
Exhibit "A"
CONTRACT FOR PROFESSIONAL SERVICES
THIS CONTRACT is entered into upon final execution by and between the City of Pearland
("CITY") and Halff Associates, Inc. ("CONSULTANT").
The CITY engages the CONSULTANT to perform professional services for a project known and
described as City of Pearland & Brazoria Drainage District No. 4 Master Drainage Plan
("PROJECT"). (Project # DR1501)
SECTION I - SERVICES OF THE CONSULTANT
The CONSULTANT shall perform the following professional services to CITY standards and in
accordance with the degree of care and skill that a professional in Texas would exercise under
the same or similar circumstances:
A. The CONSULTANT shall prepare a Drainage Master Plan. See Exhibit A,
attached, for a detailed SCOPE OF WORK and PROJECT schedule. The
PROJECT schedule shall be submitted in digital and hard copy form in the
Microsoft Project for Windows format.
B. The CONSULTANT shall prepare and submit a detailed opinion of estimated cost
of the PROJECT.
C. The CONSULTANT acknowledges that the CITY (through its employee
handbook) considers the following to be misconduct that is grounds for
termination of a CITY employee: Any fraud, forgery, misappropriation of funds,
receiving payment for services not performed or for hours not worked,
mishandling or untruthful reporting of money transactions, destruction of assets,
embezzlement, accepting materials of value from vendors, or consultants, and/or
collecting reimbursement of expenses made for the benefit of the CITY. The
CONSULTANT agrees that it will not, directly or indirectly; encourage a CITY
employee to engage in such misconduct.
D. The CONSULTANT shall submit all final construction documents in both hard
copy and electronic format. Plans shall be AutoCAD compatible and all other
documents shall be Microsoft Office compatible. The software version used shall
be compatible to current CITY standards. Other support documents, for example,
structural calculations, drainage reports and geotechnical reports, shall be
submitted in hard copy only. All Record Drawings electronic files shall be
submitted to the CITY in TIF format.
E. The CONSULTANT recognizes that all drawings, special provisions, field survey
notes, reports, estimates and any and all other documents or work product
generated by the CONSULTANT under the CONTRACT shall be delivered to the
CITY upon request, shall become subject to the Open Records Laws of this State.
Design 1 of6 D1. Revised 1/14
F. The CONSULTANT shall procure and maintain for the duration of this
Agreement, insurance against claims for injuries to persons, damages to property,
or any errors and omissions relating to the performance of any work by the
CONSULTANT, its agents, employees or subcontractors under this Agreement,
as follows:
(1) Workers' Compensation as required by law.
(2) Professional Liability Insurance in an amount not less than $1,000,000 in
the aggregate.
(3)
Comprehensive General Liability and Property Damage Insurance with
minimum limits of $1,000,000 for injury or death of any one person,
$1,000,000 for each occurrence, and $1,000,000 for each occurrence of
damage to or destruction of property.
(4) Comprehensive Automobile and Truck Liability Insurance covering
owned, hired, and non -owned vehicles, with minimum limits of
$1,000,000 for injury or death of any one person, $1,000,000 for each
occurrence, and $1,000,000 for property damage.
The CONSULTANT shall include the CITY as an additional insured under the
policies, with the exception of the Professional Liability Insurance and Workers'
Compensation. Certificates of Insurance and endorsements shall be furnished to
the CITY before work commences. Each insurance policy shall be endorsed to
state that coverage shall not be suspended, voided, canceled, and/or reduced in
coverage or in limits ("Change in Coverage") except with prior written consent of
the CITY and only after the CITY has been provided with written notice of such
Change in Coverage, such notice to be sent to the CITY either by hand delivery to
the City Manager or by certified mail, return receipt requested, and received by
the City no fewer than thirty (30) days prior to the effective date of such Change
in Coverage. Prior to commencing services under this CONTRACT,
CONSULTANT shall furnish CITY with Certificates of Insurance, or formal
endorsements as required by this CONTRACT, issued by CONSULTANT'S
insurer(s), as evidence that policies providing the required coverage, conditions,
and limits required by this CONTRACT are in full force and effect.
Design 2 of6 DI. Revised 1/14
G. The CONSULTANT shall indemnify and hold the CITY, its officers, agents, and
employees, harmless from any claim, loss, damage, suit, and liability of every
kind for which CONSULTANT is legally liable, including all expenses of
litigation, court costs, and attorney's fees, for injury to or death of any person, for
damage to any property, or errors in design, any of which are caused by the
negligent act or omission of the CONSULTANT, his officers, employees, agents,
or subcontractors under this CONTRACT.
H. All parties intend that the CONSULTANT, in performing services pursuant to this
CONTRACT, shall act as an independent contractor and shall have control of its
own work and the manner in which it is performed. The CONSULTANT is not to
be considered an agent or employee of the CITY.
SECTION II - PERIOD OF SERVICE
This CONTRACT will be binding upon execution and end April 30, 2018.
SECTION III - CONSULTANT'S COMPENSATION
A. The total compensation for the services performed shall not exceed the total noted
in Section B.
B. The CITY shall pay the CONSULTANT in installments based upon monthly
progress reports and detailed invoices submitted by the CONSULTANT based
upon the following:
1. Basic Services (Lump Sum) $266,335.00
2. Additional Services shall require independent and specific authorization
and shall be billed as (Lump Sum):
3. Bid Phase Services (Hourly Not to Exceed)
4. Construction Phase Services (Hourly Not to Exceed)
5. Reimbursable Expenses (Not to Exceed)
6. Total:
$266,335.00
C. The CITY shall make payments to the CONSULTANT within thirty (30) days
after receipt and approval of a detailed invoice. Invoices shall be submitted on a
monthly basis.
Design 3 of 6 D1. Revised 1/14
SECTION IV - THE CITY'S RESPONSIBILITIES
A. The CITY shall designate a project manager during the term of this CONTRACT.
The project manager has the authority to administer this CONTRACT and shall
monitor compliance with all terms and conditions stated herein. All requests for
information from or a decision by the CITY on any aspect of the work shall be
directed to the project manager.
B. The CITY shall review submittals by the CONSULTANT and provide prompt
response to questions and rendering of decisions pertaining thereto, to minimize
delay in the progress of the CONSULTANT'S work. The CITY will keep the
CONSULTANT advised concerning the progress of the CITY'S review of the
work. The CONSULTANT agrees that the CITY'S inspection, review,
acceptance or approval of CONSULTANTS work shall not relieve
CONSULTANT'S responsibility for errors or omissions of the CONSULTANT or
its sub-consultant(s) or in any way affect the CONSULTANT'S status as an
independent contractor of the CITY.
SECTION V - TERMINATION
A. The CITY, at its sole discretion, may terminate this CONTRACT for any reason -
- with or without cause -- by delivering written notice to CONSULTANT
personally or by certified mail at 14800 St. Mary's Lane, Suite 160, Houston, TX
77079. Immediately after receiving such written notice, the CONSULTANT shall
discontinue providing the services under this CONTRACT.
B. If this CONTRACT is terminated, CONSULTANT shall deliver to the CITY all
drawings, special provisions, field survey notes, reports, estimates and any and all
other documents or work product generated by the CONSULTANT under the
CONTRACT, entirely or partially completed, together with all unused materials
supplied by the CITY on or before the 15th day following termination of the
CONTRACT.
C. In the event of such termination, the CONSULTANT shall be paid for services
performed prior to receipt of the written notice of termination. The CITY shall
make final payment within sixty (60) days after the CONSULTANT has delivered
to the CITY a detailed invoice for services rendered and the documents or work
product generated by the CONSULTANT under the CONTRACT.
D. If the remuneration scheduled under this contract is based upon a fixed fee or
definitely ascertainable sum, the portion of such sum payable shall be
proportionate to the percentage of services completed by the CONSULTANT
based upon the scope of work.
Design 4of6 DI. Revised l/14
E. In the event this CONTRACT is terminated, the CITY shall have the option of
completing the work, or entering into a CONTRACT with another party for the
completion of the work.
F. If the CITY terminates this CONTRACT for cause and/or if the CONSULTANT
breaches any provision of this CONTRACT, then the CITY shall have all rights
and remedies in law and/or equity against CONSULTANT. Venue for any action
or dispute arising out of or relating to this CONTRACT shall be in Brazoria
County, Texas. The laws of the State of Texas shall govern the terms of this
CONTRACT. The prevailing party in the action shall be entitled to recover its
actual damages with interest, attorney's fees, costs and expenses incurred in
connection with the dispute and/or action. CONSULTANT and CITY desire an
expeditious means to resolve any disputes that may arise between under this
CONTRACT. To accomplish this, the parties agree to mediation as follows: If a
dispute arises out of or relates to this CONTRACT, or the breach thereof, and if
the dispute cannot be settled through negotiation, then the parties agree first to try
in good faith, and before pursuing any legal remedies, to settle the dispute by
mediation of a third party who will be selected by agreement of the parties.
SECTION VI — ENTIRE AGREEMENT
This CONTRACT represents the entire agreement between the CITY and the CONSULTANT
and supersedes all prior negotiations, representations, or contracts, either written or oral. This
CONTRACT may be amended only by written instrument signed by both parties.
SECTION VII — COVENANT AGAINST CONTINGENT FEES
The CONSULTANT affirms that he has not employed or retained any company or person, other
than a bona fide employee working for the CONSULTANT to solicit or secure this
CONTRACT, and that he has not paid or agreed to pay any company or person, other than a
bona fide employee, any fee, commission, percentage brokerage fee, gift, or any other
consideration, contingent upon or resulting from the award or making of the CONTRACT. For
breach or violation of this clause, the CITY may terminate this CONTRACT without liability,
and in its discretion, may deduct from the CONTRACT price or consideration, or otherwise
recover, the full amount of such fee, commission, percentage brokerage fee, gift, or contingent
fee that has been paid.
Design 5 of 6 Dl. Revised 1/14
SECTION VIII- SUCCESSORS AND ASSIGNS
This CONTRACT shall not be assignable except upon the written consent of the parties hereto.
n\_
OF EARLAND, TEXAS
.(17
(1
DATE
03 /30/2o17
DATE
Design 6 of 6 D1. Revised 1/14
CITY OF PEARLAND & BRAZORIA DRAINAGE DISTRICT NO.4
MASTER DRAINAGE PLAN
SCOPE OF WORK — Phase 11
March 17, 2017
Preface
Over the last several decades, the City of Pearland (City) and Brazoria Drainage District No. 4 (BDD4) have
experienced significant growth and development throughout. The last decade alone has seen a two -fold
increase in the area's population. With development comes an increased risk of flooding from streams as
well as other sources, which can present hazards to the public and impede growth. In an effort to more
effectively plan drainage improvements to bayous and ditches and to consider regulatory measures aimed
at minimizing negative development impacts, the City and BDD4 have taken a proactive approach. As
such, the City of Pearland and Brazoria Drainage District No. 4 have selected Halff Associates to prepare a
drainage master plan update for the combined area. The services and products resulting from the study
shall be referred to as the City of Pearland/Brazoria Drainage District No. 4 Master Drainage Plan.
The Pearland/Brazoria DD4 Drainage Master Plan is located within the shared boundary of the City and
BDD4, which encompasses a combined area of nearly 97 sq. mi. The project is generally bound by Clear
Creek to the north and FM 521 to the west. The eastern and southern boundaries are Tess clearly
demarcated, with a portion of the City extending into Harris County on the east side of Clear Creek. The
Galveston County line serves as the remainder of the eastern boundary. A majority of BDD4 is located
north of SH6, with the exception of the area near the Fort Bend County line, which includes portions of
Iowa Colony and Manvel.
Streams included in the study are Clear Creek, Hickory Slough, Mary's Creek, Cowart Creek and related
ditches and diversions, Chigger Creek, Mustang Bayou, and the West Fork Chocolate Bayou. The specific
tasks to be completed for each stream will be detailed in subsequent sections of the scope. The study
area lies within fourteen (14) FEMA FIRM panels in three counties; Brazoria, Harris, and Fort Bend. Panels
include those in Brazoria (48039C 00101, 0020H, 00301, 00351, 00401, 0045J, O110H), in Harris (48201C
1010L, 1030L, 1035L, 1055L), and in Fort Bend (48157 0305L, 0315L, 0455L). The effective dates vary.
Project Purpose
The purpose of the Master Drainage Plan is to conduct a two-phase update to the existing drainage master
plans for both the City and BDD4. The focus of this effort will be on the bayous and ditches that drain the
City and BDD4. The Phase 1 effort included data collection, development of data inventories, review of
models and data, field reconnaissance, and recommendations for the Phase II effort.
Phase II is intended to establish the baseline conditions modeling and mapping for the major bayous and
tributaries and identify the capacity of many of the smaller ditches within the combined jurisdiction. Flood
reduction alternatives will be identified and evaluated for the 100 -year Level of Service (LOS) as well as a
lesser LOS if the 100 -year is infeasible. Cost -benefit analysis will be conducted and the projects will be
evaluated and prioritized in several categories based on their effectiveness, affordability and acceptability.
In addition, an implementation plan will be prepared such that the proposed projects can be programmed
into the City and BDD4 CIP and the information is accessible digitally.
11 Page
While the focus is on bayous and ditches, the information developed during the MDP process will help
identify areas where localized flooding may be the result of limited storm sewer or neighborhood ditch
capacity. Improvements to receiving ditches recommended through the MDP will provide the outfall
capacity to accommodate local drainage improvements. In addition, small area studies may be
recommended as part of the MDP effort if it is determined that the ditches are not the source of flooding.
Project Scope
Task 1: Project Management/ Coordination
1. Attend one (1) project kickoff meeting with staff from both the City and BDD4. The meeting will
be coordinated by the Halff Project Manager and is intended to discuss key items such as project
schedule, budget, and any specific directives. Halff will provide a preliminary schedule of tasks.
2. Attend up to eight (8) progress meetings throughout Phase II to discuss specific tasks such as data
collection, outreach, baseline and future condition modeling, flood mitigation alternatives,
project costs, etc. Meeting notes shall be submitted to the City and BDD4 Project Managers within
five (5) working days after each meeting.
3. Develop a Project Management Plan (PMP) for the City and BDD4. This is a planning and
communication document that will include specific information regarding to the scope and
budget, as well as schedule, team resources, discussion of quality control procedures, and a
communication plan. PMP shall be completed after the project kickoff meeting. Within the PMP,
the project schedule will be provided. Any delays to the project schedule shall be discussed with
the City and BDD4 for review and approval.
4. Coordinate project activities with the City and BDD4 as well as internally. This includes phone and
email communication.
5. Monthly project status reports shall be provided to the City and BDD4 with the monthly invoices.
Separate monthly invoices will be provided for each agency, but the same project status reports
will be provided. Progress shall include notes regarding work completed in the preceding billing
cycle, work expected to be completed in the next cycle, and any outstanding questions or issues
for discussion.
Task 2: Outreach
1. Coordinate with City and BDD4 staff and key stakeholders from other departments to refine the
short-term and Tong -term vision for primary system drainage improvements within the shared
jurisdiction. Align this vision with the mission and goals of both the City and BDD4.
a. One (1) combined (City and BDD4) visioning meeting will be conducted. The specific date
and location will be determined by the City and BDD4.
b. Engineer will assist with the development of necessary exhibits and/or presentation.
2. Conduct public meetings to inform the public about the MDP effort, identify citizen issues, provide
public information regarding the current drainage conditions and potential improvement
alternatives, and increase public understanding of the MDP planning process.
a. A maximum of three (3) public meetings will be attended by the Engineer
b. Engineer will assist with the development of necessary exhibits and/or presentation.
3. Attend one (1) City Council Meeting and one (1) BDD4 Board Meeting to present the Master
Drainage Plan update findings and recommendations. Prepare a presentation and the requisite
exhibits for the meeting.
21 Page
Task 3: Additional Data Collection and Inventory Updates
1. New information that has been submitted to the City and BDD4, projects that have been
completed within the last year, data on more recent flood events, and other relevant information
should be collected and evaluated. In the case of reports and modeling, that information will be
incorporated into the data and model inventories developed in Phase I. The data and model
inventories will be updated a maximum of two (2) times during the MDP process. Additional
updates after the completion of the MDP are considered additional services.
2. Additional field reconnaissance will be done before and/or during the modeling phase of the MOP.
Site visits will be documented using the Halff Mobile Applications. Documentation will include
the location, feature type, dimensions (if applicable), general condition, and photographs. Data
points collected will be added to the existing Field Reconnaissance geodatabase developed during
Phase I of the MDP update. Measurements will be taken for bridges/culverts not surveyed.
3. Field survey will be collected at bridges and culverts along the major bayous based on the level of
detail as discussed in Task 4. Survey will include approximately 40 bridge/culvert structures
including the siphon at Rodeo Palms ditch.
Task 4: Base Model Update and Hazard Identification
1. Existing Conditions Hydrology:
a. Existing hydrologic models provided by the City and BDD4 will be updated. The Clear
Creek hydrologic model (includes Hickory Slough, Mary's Creek, Cowart Creek, Chigger
Creek) will be revised based on the updated basin delineation provided in Phase I. This
update will include revision of TC&R parameters, channel routing, diversions relationship,
storage -discharge relationships, and any other parameter as required. These updates will
be used for the MDP only. Changes to the Clear Creek model for a FEMA submittal will
require coordination with HCFCD and other jurisdictions under a separate contract.
b. Existing HEC -1 models for Mustang and Chocolate Bayou will converted into HEC -HMS
format. Drainage areas, TC&R parameters, and channel routing will be updated.
c. Update storage routing of HEC -HMS models using HEC -RAS models developed in Task 4.b.
d. Output flows will be compared against effective or best available flows.
2. Existing Conditions Hydraulics:
a. Existing HEC -RAS models for Hickory Slough, Mary's Creek, Cowart Creek, Chigger Creek,
and Town Ditch will be updated based on the most current terrain dataset (2008 HGAC
LiDAR) and field survey at major bridge/culvert locations. FEMA models will be updated
to reflect changes in channel layout, fill placement, new regional detention ponds, and
new storm sewer connections. The hydraulic models for Mary's and Hickory Slough will
be extended further west to include additional inline storage structures. In some
instances unsteady modeling may be utilized to model complex hydraulic situations.
b. New HEC -RAS models will be developed for Mustang Bayou, West Fork Chocolate Bayou,
and portions of the Cowart Creek system. The Cowart Creek Diversion Ditch will be
included in the FEMA Mapping update for Brazoria County.
c. Preliminary hydraulic models will be prepared for several streams including Country Place
Ditch, CR 383, Mustang Spur, New Corrigan Ditch, Resort Park Ditch, Rodeo Palms Ditch,
and Weatherford Ditch. Preliminary models will be developed based on LiDAR
information but no survey will be included with the exception of Rodeo Palms Ditch.
Survey at the structures and canal siphon along Rodeo Palms Ditch will be included.
d. Evaluate existing flood hazards based on updated modeling and mapping.
31 Page
Table 1. HEC -RAS Models
Ditch ID
Stream Length (miles)
New Model I Preliminary I Update
C107-03-00
Cannon
Cannon Ditch Spur
Chigger Creek
Chigger Creek By -Pass
Cold River Ranch Ditch
Country Place Ditch
Cowart Creek
Cowarts Creek (CR 413 Ditch)
CR 383
CR 413 Ditch
CR383
Dare Ditch
Diversion Ditch
E103-00-00
East Fork of Chocolate Bayou
HickorySlough
Hood Ditch
Hospital Ditch
LeClair Ditch
Mary's Creek
Mary's Creek Bypass
McCu tch e n
Moore Rd. Ditch
Mustang Bayou
Mustang Spur
New Corrigan Ditch
North Fork Mary's Creek
North Fork of Mary's Creek
Resort Park Ditch
Rodeo Palms Ditch
Shadow Creek Ranch
South Fork Mary's Creek
South Fork of Mary's Creek
Town Ditch
Villarreal
Weatherford Ditch
West Fort of Chocolate Bayou
1.2
2.8
7.7
2.5
0.5
2.3
1.1
0.6
1.1
3.7
1.1
0.5
1.1
1.5
0.5
1.5
1.2
3.5
2.5
0.5
3.6
0.4
1.2
1.0
0.9
3.6
1.2
2.6
1.2
4.6
1.1
0.9
1.3
0.2
8.0
1.9
0.5
1.5
9.0
2.4
1.9
Total 142
29.4 1 42.8
41Page
3. Ditch Capacity Analysis
a. The remainder of channels with in the study area will be studied based on the Rational
Method in order to determine their flow capacity. No hydraulic models will be prepared
for these reaches. A total of 91.8 miles will be evaluated by capacity only. Table 2 shows
a list of the total mileage of each modeling category by major watershed.
i. Calculate Peak Discharges for each ditch using the Rational Method.
ii. Evaluate the capacity of each ditch using Manning's Equation (LiDAR topo)
iii. Determine an approximate level of service based on the ditch capacity
Table 2. Ditch Modeling Summary
Ditch ID
Stream Length (miles)
Capacity Only
New Model
Preliminary
Update
Totals
Chigger Creek 7.0 1.7 3.8 12.5
Chocolate Bayou 4.7 4.6 0.2 9.6
ClearCreek 34.1 4.8 2.4 41.3
Cowart Creek 18.5 4.0 17.1 39.6
Hickory Slough 13.0 8.0 21.0
1Mary's Creek 11.3 12.5 11.3 35.1
I Mustang Bayou 1.5 7.7 1.1 10.3
West Fork Chocolate Bayou 1.6 2.5 4.7 8.8
Total I 91.8 I 14.2 I 29.4 42.8 178.1 _ _,
Task 5: Future Condition Analysis and Hazard Identification
Consider a variety of strategies to reduce flooding within the shared jurisdiction of Pearland and BDD4.
This effort will consider the expected future growth of the area in the development of these alternatives.
Improvement options may include traditional approaches such as conveyance and storage improvements,
as well as other strategies such as multi -use facilities and green approaches. Consider one (1) additional
level of service, such as the 10 -year or 25 -year where 100 -year capacity projects are financially or
physically impractical. Technical memorandums detailing the future condition hydrology approaches and
the alternatives to be considered will be provided to the City and BDD4 before the modeling begins.
1. Develop Future Conditions Hydrology
a. Determine expected development levels using land use data for the City/BDD4 where
available. The use of future land use data and how to estimate areas with no data will be
discussed with the City/BDD4. Future thoroughfares may also be considered in the
development of the future scenario.
b. Update the hydrologic parameters including the loss parameters (% impervious cover) as
well as the hydrograph parameters (TC, R). Soil parameters will remain consistent with
the existing conditions as they are not expected to change. Storage routing may be
updated if needed.
c. Update the HEC -HMS models with the updated parameters, execute and troubleshoot
the models. The future conditions model will not include any changes to the channels or
additional detention. It will be used as a comparison to existing conditions to determine
the expected increases in discharges due to future development and to size
improvements.
5IPage
d. Compare revised results to effective or best available models to determine changes.
2. Flood Reduction Alternatives Analysis
e. Identify flood prone areas using the existing and future conditions modeling and
preliminary mapping (RASMapper).
f. Identify specific locations and determine appropriate criteria for flood reduction
alternatives. This includes determining what types of projects will be evaluated, specific
configurations for channels and detention projects, detention service areas, and what
types of multi -use projects are preferred.
g. Conduct hydrologic and hydraulic modeling of proposed channel improvement
alternatives to achieve a 100 -year level of service based on the future conditions
modeling completed in Task 5.1. A location map will be developed for each project which
includes the extents and information regarding the proposed channel configuration.
h. Conduct hydrologic and hydraulic modeling of proposed channel improvement
alternatives to achieve one (1) alternative level of service (10 -year, 25 -year, etc.) based
on the future conditions modeling completed in Task 5.1. The specific level of service will
be discussed with the City/BDD4 prior to modeling the scenario. A location map will be
developed for each project which includes the extents and information regarding the
proposed channel configuration.
i. Conduct hydrologic and hydraulic modeling of proposed regional detention improvement
alternatives to achieve a 100 -year level of service based on the future conditions
modeling completed in Task 5.1. A location map will be developed for each project which
includes the extents and information regarding the proposed detention configuration.
j. Consider improvements to small ditches based on the capacity analysis.
Recommendations will include basic channel configurations and minimum culvert sizes.
3. Planning Level Concepts
a. Develop planning level concepts for the proposed channel improvements, including any
channel sections that may include trails. Concept sketches may be used for the public
meetings.
b. Develop planning level concepts for the proposed detention improvements, including any
improvements that may have multiple uses such as parks and recreational uses. Concept
sketches may be used for the public meetings.
Task 6: Conduct Cost Benefit Analysis
1. Benefit -Cost Analysis — Compare the cost of proposed improvements to the estimated reduction
in damages (benefits) on an annualized basis. Specific subtasks include:
a. Develop Planning Level cost estimates for selected alternatives that reduce flooding and
are considered acceptable by the City/BDD4. During the public meeting, some input may
be gathered from the public regarding the acceptability of alternatives as well.
b. Flood Damage Analysis — Average annual damage estimates will be evaluated using the
HEC -FDA (Flood Damage Assessment) software with USACE depth -damage curves. The
tool will be run for each feasible alternative for a defined range of flows. A damage
analysis will also be conducted for the existing conditions as a baseline for comparison.
Annual Damages will be brought to present value using an acceptable discount rate and
6IPage
project life. Flood depths at structures will be based of the calculated WSEL and an
assumed finished floor elevation (FFE). Given the number of structures in the project
area, the FFE will be estimated from the LiDAR and field observation. If surveyed FFE are
available, that data can be incorporated into the analysis.
c. Benefit Calculation — Benefits for each alternative will be calculated by subtracting the
alternative flood damages from the existing (without project) damages. The difference
between the two will be considered the benefit.
d. Benefit -Cost ratios will be developed based on the present value basis and will be used to
determine the economic viability of each feasible alternative.
2. Other non -monetary benefits will be considered in the recommendation process. These include,
improved mobility and emergency access due to reduced roadway flooding, area of floodplain
reduced, number of habitable structures, removed from floodplain, etc. These will not be
included in the calculation of the benefit -cost ratio.
Task 7: Prioritize and Implement Future Projects (Capital Improvement Plan)
1. Evaluate and Prioritize Projects
a. Develop prioritization metrics and weighting specific to City of Pearland and BDD4.
b. Select projects identified and evaluated in the alternatives analysis task based on
acceptability to the public, effectiveness with respect to flood reduction, and cost-
effectiveness given current and projected future funding constraints. Consider several
categories of projects, including O&M projects, small CIP, large CIP, and reserve, or
"opportunity" projects.
2. Consider alternative funding sources, such as utility fees, impact fees, grant opportunities and
other mechanisms to help fund recommended projects.
3. Implementation Plan — Develop a planned approach for implementation of recommended
projects based on identified constraints.
a. Develop project classification and assign a priority score based on the criteria developed
in Task 7.1.a.
b. Identify project constraints and associated costs including:
i. Utility relocation including public utilities as well as pipelines and other private
utilities
ii. Land acquisition and associated cost
iii. Environmental permitting and mitigation, including estimated costs
c. Develop fact sheets for prioritized projects. Fact sheets will include information such as
project name, project location map, description including design configuration specifics,
estimated cost for design and construction, timeframe, and other information. Fact
sheets will be linked to a GIS feature.
Task 8: Update Drainage Criteria and Policies
a. Provide a review and benchmarking of current City drainage criteria and ordinances relative to
other local stormwater programs. Policies regarding the submittal process, basic hydrologic
methodologies, detention, and other high-level drainage policy will be considered. Specific
criteria such as street grading, inlet and pipe sizing, and other detailed items will not be included.
7IPage
b. Review City and BDD4 criteria and policies with the intent of improving regulatory practices, and
in some cases avoid the pitfalls surrounding communities have experienced.
c. Based on internal discussions, the Phase I criteria review, and the benchmarking task, provide
recommendations to assist with improvements to create concise, consistent, and up-to-date
criteria and policies. This is limited to small adjustments to the criteria. A large-scale update
including public input will require additional scope and fee.
Task 9. Deliverables
The Phase II submittal will include the project deliverables; a detailed narrative discussing the data
collection and inventory process, compilation of all the data collected and evaluated, updated digital
information, including GIS, H&H models, photos, and recommendations for Phase II. Specific tasks relating
to the Phase I Submittal preparation include the following:
1. Master Drainage Plan Report Deliverable
a. Prepare a detailed narrative discussion of the procedures and findings of each task
b. Prepare Exhibits that provide relevant information including but not limited to drainage
areas and hydrologic parameters, hydraulic modeling information such as channel
alignments and cross sections, revised flood mapping, proposed improvement alternative
locations and dimensions, limits of inundation for improved conditions, etc.
c. Relevant figures and tables, including hydrologic and hydraulic calculations and results,
meeting notes project decisions.
d. Planning -Level cost estimates for recommended flood reduction alternatives.
e. Information and exhibits used for the public outreach effort.
2. Digital Data Deliverable
a. Copies of the digital information will be included on CD/DVD with the report, including a
pdf copy of the report itself.
b. Update the MDP Geodatabase developed in Phase I with modeling and mapping
information developed in Phase II. The Geodatabase will include the updated feature
classes relating to the model inventory and report/plan inventory developed as part of
Phase I as well as additional field data collected. Among other data fields, ownership of
features will be identified. Other relevant digital data collected will be organized into the
Geodatabase as well.
c. Provide all models collected as well as any model updates. The models will be catalogued
and include the location, date prepared, and any other information available. The
associated GIS features will be included in the Geodatabase. The evaluation will be
provided as part of the narrative; but notes will be included in the GIS.
3. Respond to City/BDD4 Comments
a. Review comments from the City and BDD4 relating to the hard copy report or digital data
delivery. Coordinate with City and BDD4 and attend meetings as needed to discuss.
Task 10. Quality Assurance/Quality Control
Each task will be subjected to internal QA/QC by a separate water resources team at Halff. Associated
documentation will be provided with the Final Phase I Report. Specific tasks relating to the QA/QC process
include the following:
81 Page
1. The QA/QC program will include a multi-level approach to ensure that senior members review,
comment, and approve the completed work. Quality control check lists shall be created for the
data collection, GIS data development, and final report elements of the work. Each checklist shall
include milestone review events that describe the items to be reviewed and include
documentation of the comments by the reviewer and responses from the Project Manager. All
project materials presented to the City and BDD4 as draft or final products will be accompanied
by QA/QC certification. QA/QC will be performed for the following specific tasks:
a. Existing Conditions Modeling — Includes new modeling (detailed and preliminary) as well
as model updates and the capacity analysis to be completed for smaller local ditches.
b. Proposed Improvement Modeling — Includes new modeling for the proposed flood
improvement alternatives and calculations for small ditch and culvert improvements.
c. Phase 11 Report — Including the narrative, exhibits, figures and tables. In addition, cost
estimates, GIS information, fact sheets and other information will be reviewed.
2. The ENGINEER shall retain all work products generated and information gathered and used during
the course of the project. This includes, but is not limited to, base data as well as intermediate
work products.
Task 11. Additional Services
The following services are NOT included in the Phase 11 MDP contract; however, they may be added at a
later date as needed to facilitate updates to the Brazoria County FEMA maps at the discretion of the City
and/or BDD4.
1. Floodway Analysis and Remapping
a. Update the floodway mapping for Clear Creek on the Brazoria County side of the creek.
This does NOT include changes to the encroachment analysis completed for the Clear
Creek (A100-00-00) Effective Model, which is managed by Harris County Flood Control
District.
b. Update the encroachment analysis for Hickory Slough, Mary's Creek, Cowart Creek and
other necessary analysis using the modeling developed as part of the Pearland/BDD4
MDP Phase 11.
c. Update the floodway mapping for Hickory Slough, Mary's Creek, Cowart Creek and other
necessary analysis using the encroachment analysis developed as part of Task 11.1.c
above.
Wage
Project Phases and Tasks'
CITY OF PEARLAND & BRAZORIA DRAINAGE DISTRICT NO. 4
MASTER DRAINAGE PLAN
LEVEL OF EFFORT ESTIMATE
February 9, 2017
oa
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Administrative
Direct Costs
5300.00
$225.00 $200.00 5165 00 5150.00 $105 00
5150.00
$120.00
$80.00 $80.00
Hours
Task 1: Project Management & Coordination
Project Kickoff Meeting & Minutes (1)
Project Update Meetings & Minutes (8)
Development of Project Mangement Plan
Project Coordination
Project Status Reports and Invoicing (8)
Subtolal Task 1
2
4
3
16
8
2
32 4 24
8 4 12
Task 2: Community Outreach
Internal Visioning Session
Preparation of Materials
Meeting Attendance
Public Meetings (2)
Preparation of Materials
Meeting Attendance
City CouncilBDD4 Board Meeting
8
,4 23
12
8
8
8
'2
51.645
55.280
53.060
$18,380
53.420
540
$321.
51.685
55.600
53.060
518.380
53,420
14 531.785 5362 S32.150
81.050
51,980
56.420
55.820
53.840
Subtotal Task 2
20
516.170
340
51.950
52.020
56,420
55.900
S3.920
520,210
Task 3: Additional Data Collection and Inventory Updates
Data Collection
Collect additional reports and modeling data
Webmap Updates
Historical Rainfall and Stroam Gage Data
Field Reconnaissance
Field Survey Data
subtotal task 3
2
0 8
2
2
4
4
24
56
32 72
16
4
$1,890
$3,710
5750
$10,700
$300.00
560,000.00
20 0 $17,050 ,3111
51.890
53.710
5750
511,000
560.000
577,350
Project Phases and Tasks'
CITY OF PEARLAND & BRAZORIA DRAINAGE DISTRICT NO. 4
MASTER DRAINAGE PLAN
LEVEL OF EFFORT ESTIMATE
February 9, 2017
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dministrative
Task 4: Baseline Conditions Modeling
Hydrologic Modeling
Update Clear Creek Watershed Model 4
Import/Update Mustang, Chocolate, Chigger Models 8
Update Storage Routing 4
Results Analysis & Comparison 2
Hydaulic Modeling
Update Hickory, Marys, Cowart, Town Ditch Models 6
Models for Mustang, Chocolate, Chigger
Preliminary Modeling (LiDAR Only)
Evaluate Existing Flood Hazards
Ditch Capacity Analysis
Rational Method Calculations
Ditch Capacity Analysis
Level of Service Determination
JUo1Oral l asK 4
16
16
4
2
2
2
16
24
24
8
40
64
40
16
50
S7.740
512.460
59.060
53.453
57,740
512.480
59,060
S3.450
24
64
64
40
160
128
4 8 16
8 32
16 64
4 8 16
104
168
616
4
8
S9.510
530,000
527,760
54.440
55.010
$9,570
$3,990
59.510
530.000
527,760
$4,440
55,010
S9,570
S3,990
5123,0i0 SO 5123.010
Task 5: Drainage Improvement Alternatives
Develop Future Conditions Hydrology
Determine Expected Development Levels
Update Hydrologic Parameters
Updare and Execute HEC -HMS Models
Compare Results to Existing and Evaluate
Flood Reduction Alternatives Analysis
Identify Specific Areas for Improvement
Determine Improvement Criteria
H&H Modeling for 1% LOS Channel Improvements
H&H Modeling for Alt. LOS Channel Improvements
H&H Modeling for Regional Detention
Small Ditch Improvement Analysis
Planning Level Channel Scenarios
Planning Level Detention Scenarios
ovvrvcm Jabsir.
2
2
2
2
4 8
4 16 32
2 4 16
6 12 32
8
4 4 4 4
4 8 8 16
12 80 200 16
12 80 200 12
6 12 40 120 12
2 8 16 40
46 u
(
8 24
8 24
128 ( 11 668 16 48
$2,270
$7,510
$2,610
$6,600
62,580
$5,700
$36,980
$37,860
$22,890
$8,370
$4,080
$4,080
5141.530
SO
S2.270
S7,510
S2.610
S6.600
52.580
55.700
S36.980
S37.860
522,890
$8.370
54,080
54,080
$141.530
CITY OF PEARLAND & BRAZORIA DRAINAGE DISTRICT NO. 4
MASTER DRAINAGE PLAN
LEVEL OF EFFORT ESTIMATE
February 9, 2017
Project Phases and Tasks'
Principle -In -
Charge
Senior Project
Manager
U Q
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O i
Senior
Professional
Engineer
Professional
Engineer
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Landscape
Architect
0
C7
8
m
to
5
0
Administrative
Effort Subtota
Direct Costs
Project Total
Task 6: Benefit Cost Analysis
Benelt-Cost Analysis
Develop Planning Level Cost Estimate
4
16
32
40
512,540
512,540
Flood Damage Assessment
2
4
8
16
80
2
3
$14.500
514,500
Calculation of Benefits
2
2
4
12
24
56.030
56,030
Benefit -Cost Ratios
2
8
51.395
51.395
Identify Non -Monetary Benefits
2
4
8
16
53.990
$3,990
Subtotal Task 6
4
13
0
34
68
168
0
2
6
0
$38.455
50
538.455
Task 7: Prioritize and Implement Projects (CIP)
Evaluate and Prioritize Projects
Develop Prioritization Criteria
2
4
4
4
52,760
52,760
Select Projects for Project Categories
2
4
8
8
16
55.700
55,700
Condor Alternative Funding Sources
4
4
4
53.780
53,780
Develop Implementation Plan
Develop Project Classification and Priority
2
8
8
24
56.240
56,240
Identify Project Constraints and Costs
2
4
2
o
' T
55.700
55,700
Develop Project Fact Sheets and GIS Information
1
4
4
6
s
' 8
56,980
56,980
Subtotal Task 7
13
28
0
36
32
76
0
8
16
0
531.160
50
531,160
Task 8. Update Drainage Criteria/Policy
Review and Augment City Benchmarking
2
4
5975
5975
Review Criteria and Policies
2
4
8
51.995
51,995
Make Recommendations for Updates
.-
2
2
4
4
S2.400
52.400
Subtotal Task 8
2
4
0
6
8
16
0
0
0
0
55.370
Sr
85,370
CITY OF PEARLAND & BRAZORIA DRAINAGE DISTRICT NO. 4
MASTER DRAINAGE PLAN
LEVEL OF EFFORT ESTIMATE
February 9, 2017
Project Phases and Tasks'
Principle -In -
Charge
Senior Protect
Manager
a
G
Q W
Sc
Senior
Professional
Engineer
Professional
Engineer
Engineer in
Training
Landscape
Architect
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4
Administrative
O
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=
o
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Direct Costs
Project Total
Task 9: MDP Phase II Submittal
Master Drainage Plan Report Deliverable
Narrative Development
16
8
8
32
S9.480
S9,480
Exhibit Propralion
4
8
16
16
4
40
$9,860
59,860
Tables 8 Figures Preparation
4
16
32
66.660
56.660
Cost Estimate Exhibits
4
12
'F
54.380
64.380
Community Outreach Information
1
2
6
51,395
51.395
Digital Submittal
Prepare PDF copy of report
1
4
4
$965
S965
Finalize Goodatabase
4
4.
8
$2.00S
62.005
Compile Calculations. Models. Etc.
1
4
6
$1.665
61.665
Respond to Comments and Update Report
6
8
16
32
''2
$10.080
510.080
Subtotal Task 9
40
14
44
116
I i
ti
'w
4
646.490
50
S46.490
task 10: Quality Assurance/Quality Control
Existing Conditions Modeling OA/QC
4
12
8
4
$5.220
65.220
Proposed Conditions Modeling QA/OC
4
12
16
8
4
$5.220
65,220
Phase II MDP Report and GIS QA/OC
r.
4
12
8
4
16
66.500
66,500
Sub:_'.: .•'
0
12
36
48
24
2
2
12
16
0
$16,940
50
616.940
>ROJJECT TOTALS
25
310
40
417
596
1783
52
90
168
18
5436.800
$60.860
5532,670
NAN-HOUR PERCENTAGES
1
0.79
8.9.0
1 1%
11.9`%,
17.0%
51.04,,
1.5%
2.6%
4.8%
0 54,
ID Task Name
1 )ask 1- Project Management
2 BDD4 Project Authorization
3 Pearland Project Authorization
4 Project Kickoff Meeting
5 Internal Project Planning
6 Project Management
7 /ask 2 - Community Outreach
8 Internal Visioning
9 Public Meeting No. 1
10 Public Meeting No. 2
11 Pearland City Council Presentation
12 BDD4 Board Presentation
13 task 3 - Additonal Data Collection
14 Data Collection
15 Collect Additional Reports/Data
16 Webmap Updates
17 Historical Rainfall and Gage Data
18 Field Investigation
19 Channel/Structure Survey
20 Survey Needs Identification
21 Set Control
22 Field Survey Structures
23 `ask 4 - Baseline Conditions Modeling
24 Hydrologic Model Update
25 Update Clear Creek HEC -HMS Model
26 Convert HEC -1 Models to HEC -HMS
27 Revise Drainage Areas
28 Update Loss and UH Parameters
29 Update Storage Routing
30 Evaluate Results and Comparison
31 Hydraulic Model Updates 40 days
32 Develop Preliminary Models 20 days
33 Update RAS Models (Hickory, Mary's, Etc 20 days
Duration (Start
days 4ue 4/4/17
0 days Tue 4/4/17
0 days Mon 4/10/17
0 days Mon 4/17/17
10 days Mon 4/17/17
265 days Mon 4/17/17
200 days Mon 5/1/17
5 days Mon 5/1/17
0 days Fri 9/1/17
0 days Fri 1/5/18
0 days Fri 2/2/18
0 days Fri 2/2/18
35 days Mon 5/1/17
25 days Mon 5/1/17
5 days Mon 5/1/17
S days Mon S/8/17
20 days Mon 5/8/17
10 days Mon S/1/17
35 days Mon 5/1/17
5 days Mon 5/1/17
10 days Mon 5/8/17
20 days Mon 5/22/17
85 days Mon 5/8/17
60 days Mon 5/8/17
10 days Mon 5/8/17
5 days Mon 5/8/17
5 days Mon 5/15/17
10 days Mon 5/22/17
10 days Mon 7/3/17
10 days Mon 7/17/17
Mon 6/5/17
Mon 6/5/17
Mon 6/5/17
Project. Pearland_B0D4_MDP Ph
Date: Fri 3/24/17
Task
Split
Milestone
Summary
•
ti•1=11p
(Finish
Fri 4/20/18
Tue 4/4/17
Mon 4/10/17
Mon 4/17/17
Fri 4/28/17
Fri 4/20/18
Fri 2/2/18
Fri 5/5/17
Fri 9/1/17
Fri 1/5/18
Fri 2/2/18
Fri 2/2/18
Fri 6/16/17
Fri 6/2/17
Fri 5/5/17
Fri 5/12/17
Fri 6/2/17
Fri 5/12/17
Fri 6/16/17
Fri 5/5/17
Fri 5/19/17
Fri 6/16/17
Fri 9/1/17
Fri 7/28/17
Fri 5/19/17
Fri 5/12/17
Fri 5/19/17
Fri 6/2/17
Fri 7/14/17
Fri 7/28/17
Fri 7/28/17
Fri 6/30/17
Fri 6/30/17
CIty of Pearland/8razoria Drainage District No. 4
Master Drainage Plan Update - Phase II
Qtr 2,2017
Mar Apr 1
L 8004 Project Authorization
110 . Pearland Project Authorization
4/17 Project Kickoff Meeting
Ion
Project Summary r
External Tasks
External Milestone G
Inactive Task
Qtr 3, 2017
May 1 Jun I Jul I Aua
■
Qtr 4, 2017
I
Seo Oct 1
9/1 ♦ Publ c Meeting No. 1
Task 3 - Addkonal Data C..ection
Data Collection
Channel 'Structure Survey
Halff Survey
Halff Sury
I Qtr 1,2018
Nov 1 Dec Jan
Qtr 2, 2018
Feb 1 Mar Aar i 1 v Iun
ask 1F Ottititt Manage
i..sk 2 - Community Outreach
1/5 t Public Meeting No. 2
2/2 t Pearland City Council Presentation
2/2 .BDD4 Board Presentation
Task 4 - Baseline Conditions Modeling
Hydrologic Node' Update
4 Hydraulic lei del Updates
Imigml
Hig=gigj
Inactive Milestone
Inactive Summary
Manual Task
Duration -only
Page 1
Manual Summary Rollup
. Manual Summary
Start -only
Finish -only
C
Deadline
Progress
Manual Progress
ID
ask Name
City of Pearland/Brazoria Drainage District No. 4
Master Drainage Plan Update - Phase 11
Duration Start Finish I Qtr 2, 201'
Mar Aor
34 Models for Mustang, Chigger, Chocolate b
days
35 Evaluate Existing Flood Hazards
36 Ditch Capacity Analysis
37 Rational Method Calculations
38 Ditch Capacity Analysis
39 Level of Service Determination
40 Data and Model Update QA/QC (Task 9)
41 Respond to QA/QC Comments
42 Submit Existing Conditions Memorandum
43 /ask 5 - Drainage Improvement Altematives
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
Future Conditions Hydrology
Determine Expected Development
Update Hydrologic Parameters
Update HEC -HMS Models
Future Conditions Storage Routing
Compare Results to Existing
Flood Reduction Alternatives
Identity Areas for Improvement
Determine Improvement Criteria
H&H Modeling for 1% LO5 (Channels)
H&H Modeling for Alt. LOS (Channels)
H&H Modeling for Regional Detention
Small Ditch Improvement Analysis
Planning Level Concepts
Planning Level Channel Scenarios
Planning Level Detention Scenarios
Review Planning Level Scenarios
Alternatives Analysis QA/QC
Respond to QA/QC Comments
Submit Alternatives Analysis Memo
64 /ask 6: Benefit Cost Analysis
65 Develop Planning Level Cost Estimates
66 Flood Damage Assessment
Project. Pearland_BDD4_MDP Ph
Date: Fri 3/24/17
Task
Split
Milestone
Summary
on 6/5/17 ri 6/30/17
10 days Mon 7/17/17 Fri 7/28/17
45 days Mon 5/8/17 Fri 7/7/17
15 days Mon 5/8/17 Fri 5/26/17
15 days Mon 5/29/17 Fri 6/16/17
15 days Mon 6/19/17 Fri 7/7/17
10 days Mon 7/31/17 Fri 8/11/17
15 days Mon 8/14/17 Fri 9/1/17
0 days Fri 9/1/17 Fri 9/1/17
90 days Mon 9/4/17 Fri 1/5/18
65 days Mon 9/4/17 Fri 12/1/17
10 days Mon 9/4/17 Fri 9/15/17
5 days Mon 9/18/17 Fri 9/22/17
10 days Mon 9/25/17 Fri 10/6/17
10 days Mon 11/6/17 Fri 11/17/17
10 days Mon 11/20/17 Fri 12/1/17
S0 days Mon 9/4/17 Fri 11/10/17
10 days Mon 9/4/17 Fri 9/15/17
5 days Mon 9/18/17 Fri 9/22/17
10 days Mon 9/25/17 Fri 10/6/17
10 days Mon 10/9/17 Fri 10/20/17
10 days Mon 10/23/17 Fri 11/3/17
5 days Mon 11/6/17 Fri 11/10/17
35 days Mon 10/2/17 Fri 11/17/17
15 days Mon 10/2/17 Fri 10/20/17
15 days Mon 10/16/17 Fri 11/3/17
10 days Mon 11/6/17 Fri 11/17/17
10 days Mon 12/4/17 Fri 12/15/17
15 days Mon 12/18/17 Fri 1/5/18
0 days Fri 1/5/18 Fri 1/5/18
90 days Mon 7/31/17 Fri 12/1/17
30 days Mon 10/9/17 Fri 11/17/17
30 days Mon 7/31/17 Fri 9/8/17
Pay
IQtr 3,201'
•
Ditch :apacltyAtrrsls
Qtr 4, 2017 I Qtr 1, 2018 I Qtr 2, 2018
Are l Sep Oct 1 Nov 1 Dec Jan 1 Feb 1 Mar Aor 1 May 1 Jun
Halff ten/QC
9/1 Existing Conditions Memorandum
Task 5 - Drainage Improvement Alternatives
Future Conditions Hydrology
action AkematMs
ping Level Concepts
Project Summary 1 1 Inactive Milestone Manual Summary Rollup
.— External Tasks ..._z: - Inactive Summary Manual Summary
• External Milestone 6, Manual Task Start -only
111, Inactive Task Duration -only uMeliMM Finish -only
Page 2
Half, QA/QC
1/S . Subrrilt Alternatives Analysis Mama
Task 6: Benefit Cost Analysis
C
3
Deadline
Progress
Manual Progress
a
ID Task Name
Duration Start Finish
days 67 Calculation of Benefits on 11/20/1' Fri
11/24/17
68 Benefit -Cost Ratios 5 days Mon 11/27/17 Fri 12/1/17
69 Identify Non -Monetary Benefits 10 days Mon 11/20/17 Fri 12/1/17
70 /ask 7: Prioritize and Implement Projects 45 days Mon 12/4/17 Fri 2/2/18 I
71 Evaluate and Prioritize Projects 30 days Mon 12/4/17 Fri 1/12/18
72 Develop Prioritization Criteria 10 days Mon 12/4/17 Fri 12/15/17
73 Select Projects 10 days Mon 12/18/17 Fri 12/29/17
74 Consider Alternative Funding 10 days Mon 1/1/18 Fri 1/12/18
75 Develop Implementation Plan 25 days Mon 1/1/18 Fri 2/2/18
76 Develop Project Classification 10 clays Mon 1/1/18 Fri 1/12/18
77 Identify Project Constraints and Costs 5 days Mon 1/15/18 Fri 1/19/18
78 Develop Project Fact Sheets 10 days Mon 1/22/18 Fri 2/2/18
'.-Task 8: Update Drainage Criteria/Policy 80 days Mon 5/8/17 Fri 8/25/17
80 Review and Augment City Benchmarking 20 days Mon 5/8/17 Fri 6/2/17
81 Review Criteria and Policies 30 days Mon 6/5/17 Fri 7/14/17
82 Make Recommendations for Updates 30 days Mon 7/17/17 Fri 8/25/17
83 Task 9: MDP Phase II Submittal 165 days Mon 9/4/17 Fri 4/20/18
84 MDP Report Deliverable 110 days Mon 9/4/17 Fri 2/2/18
85 Narrative Development 110 days Mon 9/4/17 Fri 2/2/18
86 Exhibit Preparation 110 days Mon 9/4/17 Fri 2/2/18
87 Tables and Figure Preparation 110 days Mon 9/4/17 Fri 2/2/18
88 Cost Estimate Exhibits 55 days Mon 11/20/17 Fri 2/2/18
89 Community Outreach Information 110 days Mon 9/4/17 Fri 2/2/18
90 Digital Data Submittal 30 days Mon 2/5/18 Fri 3/16/18
91 Prepare PDF copy of report 5 days Mon 2/5/18 Fri 2/9/18
92 Finalize Geodatabase 5 days Mon 2/12/18 Fri 2/16/18
93 Compile Calculations, Models, Etc. 5 days Mon 2/12/18 Fri 2/16/18
94 Deliverable QA/QC 10 days Mon 2/19/18 Fri 3/2/18
95 Respond to QA/QC Comments 10 days Mon 3/5/18 Fri 3/16/18
96 Submit Draft Report 0 days Fri 3/16/18 Fri 3/16/18
97 Pearland/BDD4 Review 15 days Mon 3/19/18 Fri 4/6/18
98 Respond to Comments and Update Report 10 days Mon 4/9/18 Fri 4/20/18
99 Submit Final Report 0 days Fri 4/20/18 Fri 4/20/18
Project: Pearland_BDD4_MDP_Ph
Date. Fri 3/24/17
Task
Split
Milestone
Summary
City of Pearland/Brazoria Drainage District No 4
Master Drainage Plan Update - Phase II
Qtr 2, 2017 I Qtr 3, 2017
Aor Mav 1 Jun Jul 1 Aue
Qtr 4, 2017 Qtr 1, 2018
Seo Oct 1 Nov 1 Dec Jan 1 Feb 1 Mar
111,
Leis. Evaluate and Prioritize Projects
Qtr 2, 2018
Aor 1 May Jiro _
Task 7: Prioritize and Implement Projects
, T isk 8: Update Drainage Criteria/Polley
Project Summary u i Inactive Milestone Manual Summary Rollup
External Tasks Inactive Summary 1 Manual Summary
• External Milestone • Manual Task Start -only
1111 Inactive Task Duration -only 11111110111111111111111118 Finish -only
Page 3
1 Develop Implementation Plan
I
tint)
3
MDP Report Deliverable
Task 9: MDP Phase II St
Digital Dais Submittal
Half( QA/QC
3/16 Submit Draft Report
Pearland/BDD4
4/20 irSubmIt Final Report
Deadline
Progress
Manual Progress
i
HARRIS COUNTY
SHADOW CREEK•PKWY
PEARLAND
CITY OMIT
FORT BEND COUNTY
C• w1C,
OAch
GALVESTON COUNTY
LEGEND
=Pearland/BDD4 MDP Area
Brazona DD4
Pearland
Pearland ETJ
-111111 Alvin
Brookside Village
Iowa Colony
Manvel
PROJECT AREA
Soo,ces EsnritERE\OaQrn e. USGS.
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Esn Japan, METI, Esn China (Hong
Kong). Esn (Thailand), Mapmylnea.
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CITY OF PEARLAND
BRAZORIA DD4
MASTER DRAINAGE PLAN
PROJECT LOCATION
MAP
February 2017
0 3,500 7,000 14,000
eet
1 inch = 7,000 feet
Notes.
1) Aerial imagery for Pearland. TX
and surrounding ares provided by
Landiscor 2014.
2) Project area includes the City of
Pearland and Brazoria DD4 Portions
of other cities including Brookside
Village, Manvel, Iowa Colony, and
Alvin are also located within the
project area as well.
:C: HALFF
HALF ASSOCIATES. INC.
14600 SAINT MARY'S LN. SUITE 160
HOUSTON. TX 77079-2943
WWW.HALFF.COM