2023-08-17 V. A. #23-010-TRC, Exhibit 1, Initial Response Letterumner Engineering & Consulting, Inc. EC S4
Agriculture, Civil, Land & Water Resources
August 16, 2023
City of Okeechobee
Attn: Patty Burnette, General Services Director
(via email)
RE: Mallard Landing
23-010 Technical Review Comments
Ms. Burnette:
410 NW 2nd Street
Okeechobee, FL 34972
863.763.9474
Please let this letter serve as "in process" responses to the Technical Review comments provided on the
Mallard Landing project. Our hope is that this will assist our team and the Technical Review Committee
during tomorrow's meeting. As stated throughout the letter, most of the items have not yet been fully
addressed, but we continue to work toward resolution of each comment raised. Our responses below
include a general status of where we are in that process. For clarity, I have repeated the comments in
italics, with our response provided in bold.
PLAT COMMENTS
Our project surveyor, Ricky Barnes, has met with City staff to discuss the plat comments. All comments
are being addressed.
CONSTRUCTION PLAN COMMENTS
Comment 1: Provide detectable warning strips for proposed sidewalks.
Response: Agreed. Detectable warning strips will be added to the design drawings in accordance with
City, FDOT or other appropriate standards.
Comment 2: Sidewalk locations should be based on City of Okeechobee Typical Rural (Non -Guttered)
Section adjacent to right of way (Appendix E Chapter 11 — Construction Standards and Details).
Response: Agreed. The plans are being modified to relocate the sidewalk to 1' from the right-of-way
line per the standard detail referenced. Revisions to the swale configurations, in both plan and cross-
section views, are also underway. The applicant requests that Certificates of Occupancy (COs) be
predicated upon construction of sidewalks — i.e. sidewalks should be constructed concurrent with
house construction. This will avoid damage to sidewalks during house construction, and ensure proper
placement of a thickened sidewalk section at each driveway per City requirements.
Comment 3: Common detention areas for subdivision should be depicted as "general purpose areas"
outside of the proposed lots on the plat.
Response: The language on the plat is being modified as requested. Previous discussions with City staff
have included an agreement in principle that the stormwater detention areas will be maintained by
the City. The rationale for this agreement is that public (City) road right's of way will provide all
drainage conveyance from the area, and sol common maintenance seems warranted.
Comment 4: Label lots and tracts on Lot Geometry plan as depicted on the proposed plat. The plat and
Lot Geometry Plan labels do not match.
Response: Agreed. Once the plat document has been finalized to take into account all TRC comments,
we will revise the Lot Geometry Plan accordingly.
General note regarding comments 5 through 11: Since the submittal of the preliminary plat
document and construction plans, we have been able to receive more accurate locations of
existing water and wastewater facilities form OUA, and are continuing to develop as accurate
information as possible in that regard. Our future plan submittal will reflect that information.
Comment 5: Provide horizontal dimensions between proposed water and sewer mains from existing and
proposed mains.
Response: Agreed. Horizontal separation between water and sewer mains (proposed and existing) will
be added to the drawings, meeting Okeechobee Utility Authority (OUA) and Florida Department of
Environmental Protection (FDEP) standard separation requirements.
Comment 6: Provide for Fire Hydrant locations.
Response: Hydrant locations will be added to the utility drawings, at a maximum spacing of 500' as
the hose lays. We are also adding surveyed locations of three existing hydrants within the project
area.
Comment 7: Due to numerous conflicts of storm pipes, water and sewer mains, provide plan and profile
plans for proposed water and sewer main.
Response: Full plan and profile utility drawings are being prepared.
Comment 8: Provide locations of proposed water service laterals and sewer service laterals to the right of
way limits.
Response: Water service and sewer service laterals are being added to the drawings per OUA
standard drawings and specification.
Comment 9: Provide proposed lot numbers on utility plans matching the proposed plat numbers to allow
for better reference of water and sewer service locations.
Response: Once the plat document has been finalized to take into account all TRC comments,
we will include lot numbers in plan view of the utility drawings.
Comment 10: Prior to construction commencement, provide a sewage collection/transmission system
construction permit from Florida Department of Environmental Protection and approval from local sewer
authority.
Response: Agreed. Appropriate FDEP applications will be signed by OUA and submitted to FDEP.
Permits will be provided to City staff prior to construction.
Comment 11: Prior to construction commencement, provide a water main extension construction permit
from Florida Department of Environmental Protection and approval from local water authority.
Response: Agreed. Appropriate FDEP applications will be signed by OUA and submitted to FDEP.
Permits will be provided to City staff prior to construction.
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Comment 12: Provide for typical driveway design with culverts for future driveways (see also Chapter 46
Article 2) Include calculations for typical driveway culvert size.
Response: Agreed. Typical driveway culvert configurations, including culvert size with appropriate
calculations, will be provided.
Comment 13: Provide Fire Hydrant locations not more than 500 feet as the fire hose lays.
Response: Agreed. Please see response to Comment 6, above.
Comment 14: Provide correspondence from Fire Marshall that the location and number of fire hydrants
as proposed are sufficient for the development.
Response: Agreed. We will provide a draft of the proposed hydrant layout to the City Fire Marshall for
review and comment prior to finalizing.
Comment 15: Please provide additional spot elevations of proposed roadside ditches and intersection
edge of pavements.
Response: Additional spot grades are being added to the drawings as requested, and may be
supplemented with a typical intersection grading detail.
Comment 16: Please provide additional information for the discharge and flow direction of runoff that
sheet flows east of the centerline of NW 3RDAve and south of the centerline of NW 11tn Street.
Response: Existing and proposed routing of off -site flows will be documented in the updated design
drawings.
Comment 17: Please provide additional signage and striping design to Department of Public Works for
approval prior to construction. Remote note 2 from sheet D.1.1 requiring the contractor to provide. The
Engineer of Record is to provide Signage and Striping Details. Also, include speed limit and directional
street name signs.
Response: Understood — formal signing and striping plans will be included in the full construction
drawing submittal, removing note 2 from Sheet 131.1. Note that the crosswalk configurations currently
shown will be modified somewhat to account for the sidewalk revisions discussed in Comment 2,
above. Stop and directional street signs will be added to the drawings. We request that the City
provide speed limit criteria for the development for inclusion in the drawings.
Comment 18: Please provide radius of proposed cul-de-sac.
Response: The plans are being revised to accommodate a cul-de-sac radius of 36 feet, as required.
Thank you for your continued assistance with this project. We look forward to fully addressing the
comments presented, and working with the City in developing this quality residential project.
Sincerely,
Sumner Engineering & Consulting, Inc.
Jeffrey M.
Digitally signed by Jeffrey M.
Sumner
Sumner
Date: 2023.08.16 16:48:24
04'00'
Jeffrey M Sumner, PE
President
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