CN-370000-CN331-T16CO1.pdf

Florida Department of Environmental Protection

TASK ASSIGNMENT CHANGE ORDER FORM

(Revised 9-26-2018) Page 1 of 1

Required Signatures: Adobe Signature

FDEP Contract No.: Task Assignment No.: Change Order No.: Project No.:

Project Location: Project Name:

Consultant Name:

Consultant Representative: Phone: Email:

FDEP Contract Manager: Phone: Email:

Description and Justification of Change:

Change in Task Amount:

Item Reimbursement Fixed Fee Total

Original Task Amount:

Task amount including all previous Change Orders:

Net increase/decrease in task amount for this Change Order:

Total Amounts with all Change Orders:

Change in Task Time:

Original Task Execution Date:

Original Task End Date:

Present Task End Date:

Net Change in Days:

New Task End Date:

Approval Signatures:

Budget Representative, FDEP Signature Date

Project Manager, FDEP Signature Date

Contract Manager, FDEP Signature Date

Consultant Signature Date

Contract Authority, FDEP Signature Date

Project # Grant # Org Code Cat/Year Fund Module Object Code EO Amount

29 Digit FLAIR Code: Total:

CN331 16 01 61338C

Mizell-Johnson State Park Seawall Improvements

Humiston & Moore Engineers

Matthew Fleming 239-566-0649x105 MFleming@humistonandmoore.com

Ralph Perkins 850-245-2460 Ralph.Perkins@FloridaDEP.gov

Additional services per the attached proposal dated 12/1/2022.

$ 2,000.00 $ 57,982.11 $ 59,982.11 $ 2,000.00 $ 57,982.11 $ 59,982.11 $ 3,500.00 $ 49,184.61 $ 52,684.61 $ 5,500.00 $ 107,166.72 $ 112,666.72

7/13/2021

6/24/2023

6/24/2023

6/23/2025

Tamika Bass Tamika Bass Digitally signed by Tamika Bass Date: 2023.02.22 15:50:35 -05'00'

Theresa Carron T.Carron Digitally signed by T.Carron Date: 2023.02.22 15:53:29 -05'00'

Ralph Perkins Ralph M Perkins Digitally signed by Ralph M Perkins Date: 2023.02.22 16:51:02 -05'00'

Matthew Fleming Matthew Fleming Digitally signed by Matthew Fleming Date: 2023.02.23 09:14:23 -05'00'

Bryan Bradner Bryan Bradner Digitally signed by Bryan Bradner Date: 2023.02.28 10:47:51 -05'00'

61338C 37505000107 080039/22 423001 U3200 131500 QK $ 52,684.61

$ 52,684.61

01 December, 2022 Theresa Carron, Project Manager Bureau of Design and Construction Florida Department of Environmental Protection 3900 Commonwealth Boulevard, MS 520 Tallahassee, FL 32399

RE: DEP Agreement CN331 ‐ Humiston & Moore Engineers

Seawall Replacement – Von D. Mizell – Eula Johnson State Park Task Assignment Number – 16 Change Order Number ‐ 1

Dear Ms. Carron, Permit applications for this project to replace approximately 250 linear feet of seawall were submitted in June, 2022. Since that time, site meetings were held in August and follow‐up discussions through October.

Regulatory agencies have determined that mitigation is required for the wetlands that have become established landward of the seawall. This change order includes mitigation plan development, a Jet Probe geotechnical investigation to reduce contractor’s risk in bidding, and construction administration (CA) services, including bid support, surveys, and final certifications. These are briefly described below.

Mitigation Plan The land behind the seawall has subsided due to deterioration of the existing wall. The lower land elevation resulted in development of wetland habitats landward of the wall. This includes several mangroves and other indicator species. The vegetation must be removed and suitable runoff restored for construction of the new wall. Federal, State, and local agencies have determined that this represents impacts to protected wetlands that must be offset by mitigation. Humiston & Moore (H&M) has negotiated an agreement that mitigation bank credits will be acceptable in combination with sufficient documented, ongoing wetland and habitat enhancement programs at the park. This change order includes tasks necessary to develop impact assessments and mitigation plans to satisfy agency requirements. Impact assessments will be developed by Pinnacle Ecological in consultation with H&M and the regulatory agencies. The impact assessments are then used by the agencies to determine the quantity of mitigation credits required.

Jet Probes The geotechnical investigation for this project encountered bedrock at an elevation of approximately ‐13.5’ in one test hole and ‐17.5’ in the other. Due to poor soil conditions at the site, the sheet pile design requires embedment into bedrock. The observed variability in bedrock elevation raises the potential of ordering excess steel at unnecessary additional cost. Jet probes will be collected at several locations along the water side of the wall. This will document the depth to refusal to allow the contractor to better estimate the lengths of sheets needed at various locations and reduce the contractor’s risk in bidding. Jet probes and refusal elevations will be conducted and compiled by Terraquatic.

Construction Administration (CA) Bidding, contractor selection, and construction administration services are included with this change order to ensure swift transition into construction phases after permits are issued. H&M will assist the BDC during the bid process and contractor selection period with responses to questions, requests for additional information, a pre‐bid meeting and other support as necessary. Due to the sensitive nature of the environment and the difficult soil conditions encountered, frequent progress meetings on site are recommended during construction in addition to pre‐construction and post‐construction punch‐list meetings for final certification. Construction observation by our structural engineer and a post‐ construction topographic survey will also be required.

The initial task assignment for this project consisted of work up to and including completed permit applications, RAI responses and construction documents. The initial task assignment provided a target completion date of June 24, 2023 for those tasks. The target completion date has been revised by 720 days to June 23, 2025 due to the added complexity of permitting projects that include a mitigation component, and the addition of bid support, construction administration, and final certifications to the scope of work. Note that this includes assumptions regarding permit review timelines, bid process and construction which will be monitored as the project progresses.

H&M has prepared the attached task assignment change order proposal summary and labor‐hour documentation to provide the professional services described above.

Sincerely, HUMISTON & MOORE ENGINEERS

Matthew Fleming

Mitigation Plan, Bedrock Investigation and Construction Administration Services for

Seawall Replacement

Von D. Mizell – Eula Johnson State Park

CN331 ‐ TA #16 – CO #1

Subtask 8: Mitigation Plan

Description: A functional assessment and mitigation plan is required by the South Florida Water

Management District (SFWMD) for assessed impacts to wetlands associated with this project. Mitigation will also be required by the US Army Corps of Engineers and Broward County. This task will provide a functional assessment using the Wetland Assessment Technique for Environmental Review (WATER) methodology. The assessment forms the basis of the purchase of mitigation credits as agreed with the agencies. This task also includes a summary of ongoing wetland habitat enhancement at the park and coordination with permitting agencies throughout the mitigation assessment and permitting process.

Additional application fees are also included. The mitigation credits to be purchased will be determined based on the work included in this item. Purchase of mitigation credits is not included in this subtask.

Deliverable:

Mitigation Plan including functional assessment of existing wetlands using WATER method and cumulative impact analysis will be provided to DEP in .pdf format.

Performance Measure: Deliverables will be reviewed by the Department to confirm they are complete, accurate, and timely.

Subtask 8

Firm Name Position Classification Hourly Rate Hours Total Fixed Price Cost

Humiston & Moore Engineer III 123.00 50 6,150.00

Humiston & Moore AutoCAD Tech II 85.00 4 340.00

Pinnacle Ecological Principal Scientist 85.47 42 3,589.74

Pinnacle Ecological Senior Scientist 71.68 68 4,874.24

Pinnacle Ecological Field Scientist 63.41 82 5,199.62

Pinnacle Ecological Biological Technician 44.11 8 352.88

Subtotal for Subtask 8: $20,506.48

Subtask 8 Reimbursable Price ‐ Not to Exceed:

Application Fees $3,500.00

Subtask 8a Reimbursable Price: $3,500.00

Subtask 9: Jet Probes

Description: The geotechnical investigation at this site identified weak, compressible organic soils several feet in thickness, overlaying sand and bedrock. The seawall design for this project will require embedding steel sheets into the bedrock. Jet probes will be used to identify refusal (typically top of bedrock) at several points along the proposed wall alignment. This information can be useful to reduce contractor’s risk during bidding and minimize waste due to excess sheet length.

Deliverable: Report of refusal elevations along the proposed wall alignment will be provided to DEP in

.pdf format.

Subtask 9

Price Cost

Humiston & Moore Engineer III 123.00 8 984.00

Humiston & Moore Administrative 62.00 1 62.00

Terraquatic Prof. Surveyor & Mapper 135.00 1 135.00

Terraquatic GPS Crew – 2 person 127.35 16 2,037.60

Terraquatic Computer / CAD 110.00 8 880.00

Terraquatic GPS Unit Per Day 50.00 1 50.00

Terraquatic Gas Powered Jet Pump 95.00 2 190.00

Total for Subtask 9: $4,338.60

Subtask 10: Bid Support

Description: H&M and our structural subconsultant will support BDC with review of bid documents, attend a pre‐bid meeting, responses to questions/RFIs, and contractor selection.

Deliverable: Responses to contractor RFIs will serve as the deliverable for this item.

Subtask 10

Price Cost

Humiston & Moore Project Manager 206.00 2 412.00

Humiston & Moore Engineer III 123.00 15 1,845.00

Humiston & Moore AutoCAD Tech 85.00 5 425.00

Humiston & Moore Administrative 62.00 1 62.00

Reuben Clarson Consulting Vice President 220.00 5 1,100.00

Total for Subtask 3: $3,844.00

Subtask 11: Construction Administration

Description: Construction administration to consist of site visits for construction observation, coordination with contractor and BDC staff, preparation of as‐built drawings and final certifications for environmental compliance are provided for under this task assignment. An assumed construction period of three months has been used to develop this task. Frequent site visits are required due to the sensitive nature of the wetland impact permitting and difficult soil conditions.

Deliverable: The deliverable for this task will be final certifications for environmental regulatory agencies, which will also be provided to DEP in .pdf format.

Subtask 11

Price Cost

Humiston & Moore Project Manager 206.00 7 1,442.00

Humiston & Moore Engineer III 123.00 26 3,198.00

Humiston & Moore Engineer II 96.00 54 5,184.00

Humiston & Moore AutoCAD Tech II 85.00 7 595.00

Humiston & Moore Administrative 62.00 1 62.00

Reuben Clarson Consulting Vice President 220.00 31 6,820.00

Reuben Clarson Consulting CAD 75.01 3 225.03

Reuben Clarson Consulting Clerical 50.00 3 150.00

Total for Subtask 11: $17,676.03

Subtask 12: Post Construction Survey

Description: A post construction survey will be required for final certifications.

Deliverable: Signed and Sealed survey by a Professional Surveyor and Mapper will be provided to BDC in

.pdf format. Linework will also be provided in native AutoCAD format.

Subtask 12

Firm Name Position Classification Hourly Rate

Hours Total Fixed Price Cost

Humiston & Moore Engineer III 123.00 3 369.00

Humiston & Moore Administrative 62.00 1 62.00

Terraquatic Prof. Surveyor and Mapper 135.00 1 135.00

Terraquatic GPS Crew – 2 Person 127.35 10 1,273.50

Terraquatic Computer / CAD 110.00 8 880.00

Terraquatic GPS unit per day 50.00 2 100.00

Total for Subtask 12: $2,819.50

Project Schedule:

Activity Duration (Max. Calendar Days from Authorization)

Subtask 8: Mitigation Plan 90

Subtask 9: Jet Probes 90

Subtask 10: Bid Support 270

Subtask 11: Construction Administration 630

Subtask 12: Post Construction Survey 730

Summary of Fees:

Subtask Subtask Fixed Price Cost Subtask Reimbursable

Subtask 8: Mitigation Plan $20,506.48 $3,500.00

Subtask 9: Jet Probes $4,338.60 $0.00

Subtask 10: Bid Support $3,844.00 $0.00

Subtask 11: Construction Administration $17,676.03 $0.00

Subtask 12: Post Construction Survey $2,819.50 $0.00

Total Fixed Price Cost: $49,184.61

Total Reimbursable Cost: $3,500.00

Overall Total Cost: $52,684.61

Payment will be made upon approval of deliverables for each subtask by the FDEP in the amount specified.