1. Project
State Road 434 Outfall Ditch to the Little Wekiva River
FDOT Project Manager: Dennisse Zornan
Little Wekiva
River
SR 434 Outfall Ditch
Good evening and welcome to tonight’s Public Information Meeting for the State Road 434 Outfall Ditch at the Little Wekiva River.
My name is Dennisse Zornan and I am the Florida Department of Transportation’s Project Manager for this project.
The purpose of tonight’s meeting is to share information about the proposed project and to provide time to answer questions with interested parties. I will give a brief overview and afterwards you are encouraged to view the exhibits and ask questions.
If you did not receive a Project Information Flyer or a Frequently Asked Questions Fact Sheet, please feel free to take one from the sign in table.
Tuesday, May 17, 2011

2. Civil Rights Statement
This meeting is being held to afford all citizens the right to understand the project and comment on concerns to the Florida Department of Transportation (FDOT). The meeting is being held to comply with Title VI of the Civil Rights Act of 1964, and Title VIII of the Civil Rights Act of 1968, as amended.
Public participation is solicited without regard to race, color, national origin, age, sex, religion, disability or family status. Persons wishing to express their concerns relative to FDOT compliance with Title VI and/or Title VIII may do so by contacting the FDOT, District Five, Title VI and VIII Coordinator Lorie Matthews, 719 South Woodland Boulevard, Deland, Florida or the Florida Equal Opportunity Office, 605 Suwannee Street, Room 260, Mail Station 65, Tallahassee, FL All inquiries or complaints will be
handled according to FDOT procedure and in an expeditious manner.
This meeting is being held to afford all citizens the right to understand the project and comment on concerns to the Florida Department of Transportation. The meeting is being held to comply with Title VI of the Civil Rights Act of 1964, and Title VIII of the Civil Rights Act of 1968, as amended.
Public participation is solicited without regard to race, color, national origin, age, sex, religion, disability or family status. Persons wishing to express their concerns relative to FDOT compliance with Title VI and/or Title VIII may do so by contacting the FDOT, District Five, Title VI and VIII Coordinator Lorie Matthews, 719 South Woodland Boulevard, Deland, Florida or the Florida Equal Opportunity Office, 605 Suwannee Street, Room 260, Mail Station 65, Tallahassee, Florida All inquiries or complaints will be handled according to FDOT procedure and in an expeditious manner.
SR 434 Outfall Ditch FPID No

3. Website Information www.cflroads.com
For project information please visit This website is the FDOT’s living platform to keep you and the public informed of on-going and future projects.
I encourage you to visit this website which now contains hot links for easy access to online information and to stay current with the status of the State Road 434 Outfall Ditch at Little Wekiva River project.
SR 434 Outfall Ditch FPID No

4. Project Location Rio Ala Mano Drive Little Wekiva River State Road 434
Outfall Ditch
Little Wekiva River
State Road 434
Existing
The project is located in Seminole County, Florida within the limits of the City of Altamonte Springs.
The existing State Road 434 Outfall Ditch includes a triple box culvert and a man-made ditch stream that discharges approximately 970 feet downstream to the Little Wekiva River. It is located within a 40-foot wide right-of-way and bordered on both sides by single-family homes.
Toledo Drive
SR 434 Outfall Ditch FPID No

5. Project History Routine Maintenance
Several Attempts Over the Past Decade to Correct/Prevent Further Erosion
Previous Project (Project No )
Constructed in 2002
Included Plantings, Erosion Control Mats, Sand-Cement Ditch Blocks, a Gabion Basket, and Rubble Rip-Rap
January 2006
Removal of Overgrowth; Inclusion of Additional Sand-Cement Bags
Within the past 10 years, several major maintenance activities have been performed by FDOT to correct and prevent further ditch erosion.
In 2002, placement of planting materials, erosion control mats, rubble rip-rap, and construction of sand cement ditch blocks and gabion basket were done for slope protection.
In 2006, removal of overgrown planting materials and garbage and inclusion of additional sand cement bags were performed.
SR 434 Outfall Ditch FPID No

6. Existing Vegetation Growth
Existing Conditions
Ditch has Deepened, Causing Severe Bank Erosion on Both Sides
Erosion is Encroaching on the Surrounding Residents’ Backyards
Neighbors have Built Retaining Walls
Residential Fences are Beginning to Lean and Lose Stability
Ditch is Difficult for Florida Department of Transportation to Maintain
Hard to Access
Costly to Maintain
Currently, the ditch bottom and steep side slopes experience erosion due to frequent storm events causing increased maintenance issues, potential impacts to adjacent residential properties, and long term maintenance costs to FDOT.
Maintenance within the ditch is performed manually since access is very limited.
Headwall at SR 434
Concrete Block Wall
Existing Vegetation Growth
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7. Existing Conditions (Additional Photos)
Steep Bank Slopes
Active Stream
Existing Fence Line
Here are some additional photographs of the existing conditions at different locations within the outfall ditch.
Existing Ditch Block
Slope Protection (Sand-Cement)
Slope Protection (Erosion Mats)
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8. Existing Conditions Slope Protection
Provided at Various Ditch Bank Locations
Gabion Basket
Last Structure Prior to Discharge to Little Wekiva River
Structure is Failing
Primary Reason for Current Design Project
The photo shown here is the gabion basket in its present condition located just upstream of the Little Wekiva River. The structure has failed and water is flowing around the structure causing slope erosion.
The primary reason for the current design project is to replace this failed structure as soon as possible and protect the ditch slopes from further erosion.
Please keep in mind, FDOT does not own the ditch. It is owned by the Developer – The June Realty Corporation. FDOT only has the right to use the ditch via a drainage easement to make sure water crosses under SR 434 and drains the SR 434 roadway. FDOT is just like you, a user of the ditch but willing to make the ditch better for all users of the ditch. FDOT will need your assistance and cooperation to make this project a success.
SR 434 Outfall Ditch FPID No

9. Proposed Design Improvements
January 2011
Design Project Underway
Install Sheet Piling to Replace Existing Drainage Structures
Reduction in Soil Loss and Erosion Prevention
Allows Ditch Bottom to Build Up Over Time
Geotextile Improvements
New Landscape/Maintenance Plan
Minimization of Wetland Impacts
Permitting Through St. John’s River Water Management District
The Florida Department of Transportation is currently working on the following new design methodologies to address the concerns perviously mentioned.
Design improvements include installing new sheet pilings to replace the four existing drainage structures, reduce soil loss and erosion, allow the ditch bottom to build back up over time, add geotextile materials to strengthen ditch slopes, and develop new landscaping and maintenance plans.
The goal of this project is to perform all of these improvements with no impacts to the residents, minimal disturbance to the existing plant materials, and achieve permit approval from the St. John’s River Water Management District.
SR 434 Outfall Ditch FPID No

10. Proposed Design Improvements
Toledo Drive
Little Wekiva River
Construct Sheet Piling
830
832
836
834
816
820
818
826
824
828
814
805
803
809
807
811
817
815
813
610
801
State Road 434
Rio Ala Mano Drive
This slide shows the four locations were new sheet pilings will be installed to replace the existing structures currently found in the ditch. For added protection, articulating block will be placed upstream and downstream of the sheet piles.
At the terminal end where the ditch meets the Little Wekiva River, new sheet pilings will also be installed longitudinally to reinforce the ditch slope and provide added protection.
The following slide provides a cross sectional view of the proposed design.
LEGEND:
Sheet Piling
Erosion Protection
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11. Proposed Design Improvements
Articulating Block
Articulating Block
Existing Ground Line 2’
Articulating block material will be used for added erosion control protection.
Geotextile material will be installed to strengthen ditch slopes.
Sheet pilings will only be installed within the 40-foot wide ditch right-of-way at the locations were the existing drainage structures are currently found. The tops of the sheet pile will be capped and will follow the existing ground elevations closely. They will be embedded into the ground approximately feet deep and 2-4 feet will be left exposed above ground.
Steel Sheet Piling
Geotextile
SR 434 Outfall Ditch FPID No

12. Proposed Design Improvements
Slope Protection – Landscape Plantings
Wiregrass (Aristida stricta)
Sand Cord Grass (Spartina bakeri)
Pickerel Weed (Pontedaria cordata)
New landscape plantings such as Wiregrass, Sand Cord Grass, and Pickerel Weed will be installed within the ditch for additional erosion control and slope protection where needed.
Wiregrass
Sand Cord Grass
Pickerel Weed
SR 434 Outfall Ditch FPID No

13. Proposed Design Improvements
Slope Protection - Geotextile Material
Articulating Block
Articulating block will provide additional strength and stability to the steep slopes.
This material will be placed immediately upstream and downstream of each sheet piling location.
Articulating Block Samples
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14. Proposed Challenges Access Access from State Road 434
Potential Access via Existing Easements
Construction Equipment
Construction Material Delivery
Current access to all residential properties will be maintained. Essentially this means existing traffic patterns will not be affected and existing driveways will remain open during and after construction.
Construction equipment will access the project site from State Road 434. Construction materials will be delivered to the site from State Road 434 and existing easements.
SR 434 Outfall Ditch FPID No

15. Construction Access Into Ditch
Toledo Drive
Little Wekiva River
830
832
836
834
816
820
818
826
824
828
814
805
803
809
807
811
817
815
813
610
801
SR 434
Rio Ala Mano Dr
Shown on this slide are the construction access points from State Road 434 and from the five existing easements which are available for use to construct this project.

16. Public Information Meeting
Project Schedule
Activity
Date
Begin Design Phase
January 24, 2011
Public Information Meeting
May 17, 2011
90% Plans Submittal
June 24, 2011
Design Complete
Spring 2012
Begin Construction
Early 2012
Project Costs
Design Cost - $196,000
Construction - $459,000
The project is currently in the preliminary design. The design cost is approximately $196,000. Design phase started January of 2011.
The construction cost for this project is approximately $459,000 with an anticipated start of construction Early 2012.
No additional Right-of Way is anticipated for this project.
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17. We Want Your Input Please Turn in the Comments Cards Tonight Mail the
completed card by
May 29, 2011
Comment Cards are provided if you would like to make a comment or question and become a part of the project file.
Please place your comment cards at the sign in table near the doorway or mail them to the contact listed on the card by May 29, 2011.
I would like to stress the importance of receiving your input on how we (the users of this ditch) can work together to make things better. For example, we will need the owners cooperation on how we can address the encroachments such as fences that will prohibit construction and to put back the fences at the right property lines. We will also need to address harmonizing the properties if the flow of water has adjusted the ditch beyond The June Realty’s ditch boundary line.
We welcome your comments and input to make this project a true success.
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18. Thank You For Attending!
We appreciate all who attended tonight’s
Public Information Meeting
Stephanie Ghezzi
The LPA Group Incorporated
615 Crescent Executive Court , Suite 200
Lake Mary, Florida 32746
(407)
Dennisse Zornan
FDOT Project Management
719 South Woodland Boulevard
Deland, Florida 32720
(386)
This concludes our presentation of the State Road 434 Outfall Ditch at Little Wekiva River project.
The project team members with name tags will be happy to answer any questions or comments at the tables.
Please feel free to review the exhibits, ask questions, or fill out a comment card with your comments or questions and leave it at the sign-in table, or mail it to the contact listed on the form by May 29, 2011.
Thank you for your interest in this project. We appreciate you taking the time to attend tonight’s Public Information Meeting.
The Website for the Project can be Located Under the “Future Projects” Tab
For Additional about other FDOT Projects and Programs:
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