Presentation is loading. Please wait.

Presentation is loading. Please wait.

Project Scope Photogrammetry Survey Geotechnical Roadway Design Drainage Design Permitting Pavement Design Traffic Control Plans Lighting Justification.

Similar presentations


Presentation on theme: "Project Scope Photogrammetry Survey Geotechnical Roadway Design Drainage Design Permitting Pavement Design Traffic Control Plans Lighting Justification."— Presentation transcript:

1

2 Project Scope Photogrammetry Survey Geotechnical Roadway Design Drainage Design Permitting Pavement Design Traffic Control Plans Lighting Justification SUE Utility Coordination Support Contamination Assessment Cultural Resource Assessment Right of Way Mapping Public Involvement Quantities Long Range Estimates Specifications Quality Deliverables Constructable/Biddable Deliverables Electronic Deliverables Schedule Control

3 Project Team

4 Management Team

5 Staff Availability

6 PD&E Study Commitments – Eastern Indigo Snake Protective Measures – Bald Eagle Nest Survey Prior to Construction – Gopher Tortoise Survey Prior to Construction – Re-Initiate Section 7 Florida Panther Consultation – Mitigate Net Loss of Wetlands for Wood Stork Continuation of Public Involvement Process

7 Project Issues Typical Section Pond Location Historic Drainage Pattern Wetland Impacts Floodplain Impacts Threatened & Endangered Species Permitting Requirements Access Management

8 Project Description Project Location and Limits – From the Lee/Hendry County Line to the Hendry/Collier County Line Roadway Classification – Rural Minor Arterial – Emerging SIS Facility – Hurricane Evacuation Route Existing Typical Roadway Section – Two-Lane Rural – Open Ditch Drainage – 200-foot Right-of-Way Posted Speed = 60 MPH Existing Horizontal Geometry – No Horizontal Curves – Two Deflection Points Land Usage – North Side – Mining Facility – Rural Agricultural Land – South Side – Mining Facility – Residential Property

9 Design Speed PPM Maximum for 6-Lane High Speed Suburban – 50 MPH (PPM, Vol. I, Section ) PD&E Study – 55 MPH (Approved Ultimate Typical Section) Scope of Services – 55 MPH (Interim Typical Section) Posted Speed – 60 MPH Operating Speed > 60 MPH Recommended Design Speed = 55 MPH – Consistent with Adjacent Projects

10 Design Criteria

11 Proposed Interim Typical Section Four-Lane Divided – Expandable to the Ultimate PD&E Recommended Six-Lane Typical Section – Includes Multi-Use Path – Elevated Sidewalk and Path – Reduced Outside Shoulder Width (Cost Savings) – Optimized Swale Size (Cost Savings) – Typical Section Meets Scope

12 Proposed Interim Typical Section Four-Lane Divided – Expandable to the Ultimate PD&E Recommended Six-Lane Typical Section – Includes Multi-Use Path – Elevated Sidewalk and Path – Reduced Outside Shoulder Width (Cost Savings) – Optimized Swale Size (Cost Savings) – Typical Section Meets Scope

13 Outside Shoulder Reduce Outside Shoulder Width to Eight-feet Provides Added Width for Harmonization & Multi- Use Path Reduces Stabilization Cost

14 Interim Typical Section Benefits Provides for Three-Feet Base Clearance Accommodates Multi-Use Path Accommodates Off-Site Drainage Reduce Construction Cost – Cost Savings Reduces Right-of-Way Acquisition – Cost Savings

15 End of Project Transitions Objectives – Construct Full Width of Pavement – Construct Necessary Drainage Elements Optimizes Future Construction in Collier County 660’1485’ End Project FPID

16 Pavement Design Considerations Pavement Type Selection Report Pavement Design – Use FC-5 – Base Clearance Variation – Resilient Modulus Reduction – Elevated Estimated Seasonal High Groundwater

17 Drainage & Permitting Attenuate and Maintain Historical Flows Patterns and Outfalls Maintain Hydro Periods of Viable Wetlands FDEP Basin Assessment Water Quality and DEP Nutrient load Management Pond Design Floodplain Impacts and compensation Manage Offsite Drainage Culvert Extension Electronic Permitting

18 Drainage & Permitting Attenuate and Maintain Historical Flow Patterns and Outfalls Issues No apparent basin outfall Undefined ditch grades Flat grades, high water table No distinct historical flow directions Design Solutions Design Storm Management System as a Closed basin Partially replace ditch on south Utilize SFWMD credits for systems with inlets in grassed areas (Interceptor swales) Prevent concentrated Post Development Pond Point Discharges Slow Recovery of Detention Volume back into the R/W

19 Drainage & Permitting Maintain Hydro Periods of Wetlands Issue Prevent alteration of hydrology to adjacent wetlands Secondary Impacts and buffer zones Design Solutions Eliminate deep offsite collector ditches along wetlands Maintain 25ft buffer beyond construction limits where feasible to minimize secondary impacts Use Ordinary High Water (OHW) for Surface water limits impacts instead of top of bank

20 Drainage & Permitting FDEP Basin Assessment Issues R/W Needs Critical FDEP Classification TMDL Status Nutrient Loading Calculations Coocolahatshee and Everglades “South” West Coast watershed WBID 3259X WBID 3259 X

21 Drainage & Permitting Water Quality and DEP Nutrient load Management Issues FDEP Statewide Storm water Rule SFWMD interpretation and application of the rule Wet detention water quality standards Design Solutions Statewide Storm water rule is not adapted but is currently enforced in various water management districts. Conformance with the rule will be demonstrated in the Pond design using the District one Event Mean Concentration (EMC) values below Wet detention Total Phosphorus removal Wet detention Total Nitrogen removal.

22 Drainage & Permitting Pond Design Design solutions Evaluate dilution with offsite runoff to reduce Post- development Nitrogen removal efficiency and reduce the need for a expensive treatment train design Utilize various treatment credits (Natural conservation area, site reforestation, Florida Friendly landscaping, etc. Increase nutrient removal, by increasing permanent pool volume and resident time Select Treatment volume (TV) depth based on available hydraulic head

23 Drainage & Permitting Floodplain Impacts and compensation Design solutions SR 82 is a designated hurricane evacuation route and will need to provide flood free access (Travel lanes above the BFE) We will assess and discuss the need for an expensive compensation site with SFWMD, given the vast size of the floodplain, relative small impact and insignificance of the rise The rise calculates +/ feet or inches in a highly undeveloped rural area

24 Drainage & Permitting Culvert Extension Issue Only cross culvert (double 30”RCP) in the project area was extended around Flow line elevation appears to be higher than the adjacent ditch and impedes positive drainage. Solution The structural condition, historical and future function within the basin will be assessed during final design and evaluated for extension or replacement.

25 Permitting Requirements and Coordination Understand District One Electronic Permit Preference Environmental Resource Permit (SFWMD) Section 404 Dredge & Fill Permit (USACE) NPDES (FDEP) Coordinate with USFWS (Florida panther) FWC Gopher Tortoise Relocation Permit prior to Construction (unlikely)

26 Wetlands Mainline (within 200 ft of existing roadway) Approximately 8 acres of wetlands and 4 acres of surface waters Surface waters are unlikely USACE jurisdictional Pond Sites No additional impacts anticipated Mitigation Wetland mitigation available at Panther Island, Big Cypress, and Corkscrew Regional (send out for competitive bid process) Senate Bill (not preferred option)

27 Protected Species Florida Panther PD&E commitment - re-initiate USFWS Section 7 Consultation Entire project within the secondary zone Habitat analysis required for any proposed impacts for new ROW and/or SMF and FPC sites Biological Assessment Anticipated Panther mortality approx. 1.5 miles southeast of project on Corkscrew Rd in 2010 Project limits do not meet criteria for wildlife crossings Mitigation for impacts available at PIMB, BCMB, and CRMB

28 Protected Species Crested Caracara PD&E stated MANLAA, therefore, no further coordination anticipated Wood stork Within the CFA of three wood stork colonies Foraging Analysis required if impacts to surface waters and wetlands are greater than 5 acres combined Bald Eagle Nearest nest is greater than 5 miles to southeast Will survey appropriate nesting habitat prior to document submittal Eastern Indigo Snake Standard FDOT Construction Precautions Gopher Tortoise Suboptimal habitat Survey appropriate habitat

29 Traffic Control Plan Phase I

30 Traffic Control Plan Phase II

31 Traffic Control Plan Phase III

32 Utility Coordination Support Support District One Prepare utility conflict matrix Attend Utility Conference Present plans

33 Access Management

34 Geotech Considerations Establish ESHW Cap Rock Confirm sub-surface condition

35 Noise Single isolated residence Noise barrier not reasonable abatement Re-evaluate during design

36 LRE Review Roadway Pavement Width FDOT LREKHA LRE $1,529,400$1,265,700 Median Component – Type E Curb $144,200 $0 Element Total Difference $407,900 10%

37 Unique Concepts Cost Savings Reduce Shoulder Width Eliminate Floodplain Comp Site Demonstrate No Impaired Water Body Total Cost Savings $ 11,000 $ 150,000 $ 20,000 $ 191,000 5%

38 Project Schedule R/W Mapping – 18 Months Design Schedule – 20 Months Will provide defined schedule 10 days after NTP

39 Quality Control KHA QA/QC Manual All Documents Seasoned staff Subconsultants required to follow Peer/Constructability Review

40 Reasons for Selecting KHA Thorough understanding of project issues Experience to develop and implement cost savings solutions Staff is available to start immediately Complete understanding of District One Preferences Extensive experience with District One staff

41 Questions?

42 Extra Slides

43 Awareness of District Procedures Plans/Reports Submittal Process Electronic Review Comments Meeting Protocol Subject Line Invoicing Procedures SUE All Sign Posts De-Silting and Video Inspection of all Cross Drains Projection of Plans for Utility Meeting

44

45

46

47


Download ppt "Project Scope Photogrammetry Survey Geotechnical Roadway Design Drainage Design Permitting Pavement Design Traffic Control Plans Lighting Justification."

Similar presentations


Ads by Google