Okaloosa County BOCC — May 17, 2013 — MLK scope proposal — reading text

ONE COMPANY | Many Solutions» April 4, 2013 Mr. Jason Autrey Okaloosa County Public Works 1759 South Ferdon Boulevard Crestview, FL 32536 Re: TO #66 Contract C06-1346-PW; Pavement Rehabilitation of Martin Luther King Blvd. and Green Acres Road Mr. Autrey: Thank you for the opportunity to propose on the above-referenced task. We propose to perform design services identified in the attached scope for a not to exceed fee of $136,413. If you have any questions or comments, please do not hesitate to contact me at 850- 429-1598 (office) or 850-525-7069 (cell). We look forward to serving Okaloosa County on this important project. Sincerely, rh ohn Wimberly, P.E. HDR Engineering, Inc. 25 West Cedar Street Phone: (850) 432-6800 Suite 200 Fax: (850) 432-8010 Pensacola, FL 32502-5945 www.hdrinc.com PAVEMENT REHABILITATION OF MARTIN LUTHER KING JR. BOULEVARD AND GREEN ACRES ROAD INTRODUCTION This scope describes the Design, Geotechnical, Surveying and Environmental services HDR will perform related to pavement rehabilitation on Martin Luther King Jr. Blvd. (MLK), and Green Acres Road in Fort Walton Beach, FL. The project limits are MLK from Butler Drive to Green Acres Road, and Green Acres Road from MLK to Lewis Turner Boulevard, a distance of 3.1 miles. An exception exists for the curve at MLK and Freedom Way from approximately 400’ south to 950’ north of Freedom Way, which will be reconstructed by others. A southbound left turn lane is proposed on MLK at Florence Avenue. The pavement surface of MLK and Green Acres Road is failing throughout the project limits, and initial investigation suggests varying types and severity of failure. In this regard, the project will be phased as follows: e Phase I consists of geotechnical analysis of the roadway, pavement design, cost estimating, and recommendations for corrective measures. e Phase II includes the development of design plans to implement recommended corrective measures and detail the left turn lane at Florence Avenue. Assumptions: 1. Phase I analysis will evaluate corrective measures such as milling and resurfacing, and full depth reclamation. No design will be performed in Phase I other than pavement design. 2 Phase II will involve the preparation of design plans to include plan view only. No easements or right-of-way acquisition is required for the project. Correction of roadside slopes and other roadside safety issues are not included. Okaloosa County will supply AADT counts for pavement design. No wetland impacts are anticipated. 5. This project is assumed to qualify for an ERP exemption under 62-346.051(4)(c) F.A.C. Services required to provide improvements beyond the qualification for this exemption are not included in this Scope of Services. This project is assumed to comply with the Okaloosa County LDC without ponds. 100-Scale Plan Sheets will be prepared for the full length of the project, and no profiles. A FDOT connection permit may be required for this project at Beal Parkway. No special driveway profile designs are required for this project. Driveways will be handled using FDOT standards and/or typical sections to the extent impacted. 10. The following standards and specifications shall be used on the project: a. Florida Department of Transportation Design Standards, 2013 b. Florida Department of Transportation Standard Specifications for Road and Bridge Construction, 2013 c. Florida Greenbook, 2011 11. Construction observation is not included in this scope and fee. > 0 9 ND MLK and Green Acres Road Page ii 4/5/2013 PAVEMENT REHABILITATION OF MARTIN LUTHER KING JR. BOULEVARD AND GREEN ACRES ROAD PHASE I TASK 1 —- PHASE I PROJECT MANAGEMENT Subtask 1-1 Project Management Subtask 1-2 Kickoff Meeting Subtask 1-3 Phase I Design Meeting TASK 2 - GEOTECHNICAL INVESTIGATION (PHASE I) Subtask 2-1 Conduct Ground Penetrating Radar (GPR) Survey Subtask 2-2 Investigate Anomalies Identified in GPR Survey TASK 3 - ROADWAY REPAIR ANALYSIS AND MEMORANDUM (PHASE I) Subtask 3-1 | Geotechnical Coordination Subtask 3-2. Memorandum Preparation PHASE II TASK 4 —- PHASE IT PROJECT MANAGEMENT Subtask 4-1 Phase II Project Management Subtask 4-2. Utility Coordination Meetings Subtask 4-3 County Staff Progress Meetings TASK 5 —- SURVEY (PHASE II) Subtask 5-1 Alignment Subtask 5-2 Horizontal Location Survey (2.8 Miles) Subtask 5-3 Full DIM Topographic Survey (700 linear feet) TASK 6 — DESIGN ANALYSIS (PHASE IT) Subtask 6-1 Roadway Analysis/Design TASK 7 — PLANS PREPARATION (PHASE ID) Subtask 7-1 60% Design Plans Subtask 7-2 90% Design Plans Subtask 7-3 100% Plans TASK 8 —- BID ASSISTANCE (PHASE ID MLK and Green Acres Road Page ili 4/5/2013 TASK 1 —- PHASE I PROJECT MANAGEMENT Subtask 1-1 Project Management Objective: Maintain communication, coordination, and documentation with Okaloosa County Project Manager during Phase I services (3 months). HDR Activities: « HDR will provide County PM a monthly status report to accompany invoices. = HDR will maintain an organized project filing system to retain documentation. HDR Deliverables: Monthly status reports during Phase I. Subtask 1-2 Kickoff Meeting Objective: Establish communication protocol, strategies and action plans with Okaloosa County personnel. HDR Activities: Conduct a kickoff meeting with Okaloosa County. « Discuss overall project objectives and purposes. « stablish schedule. HDR Deliverables: Draft meeting minutes and distribute. Subtask 1-3 Phase I Design Meeting Objective: Coordinate recommendations following geotechnical investigation. HDR Activities: « Present preliminary findings. =" Coordinate remediation alternatives and cost. HDR Deliverables: Draft meeting minutes and distribute. TASK 2 —- GEOTECHNICAL INVESTIGATION (PHASE I) Subtask 2-1 Conduct Ground Penetrating Radar (GPR) Survey Objective: To conduct ground penetrating radar (GPR) studies of the existing roadway using Environmental and Geotechnical Specialist’s Inc. (EGS) high speed profiling unit to identify areas of subgrade/pavement deficiencies. Activities: =" EGS will conduct a GPR and Geotechnical Survey of the existing roadway in the following manner: a. Runa GPR Transect line in each shoulder and each travel lane (the EGS GPR unit is vehicle mounted such that data can be gathered near existing roadway speeds to reduce disruption to traffic). b. Install 2 pavement cores and a 10 feet deep auger boring for each mile of roadway (total of 6 cores). c. At each core install 1-10 feet deep auger boring to evaluate subgrade, groundwater, and general subsurface conditions (6 borings x 10 feet/boring = 60 feet). d. Grout soil borings and patch roadway surface. = EGS will conduct the following Laboratory testing: a. Perform 1 grain-size classification per 10 feet of boring (6 tests). b. Perform 1 plasticity test per 20 feet of soil boring (3 tests). c. Perform 1 organic content test per 10 feet of soil boring (6 tests). d. Perform 3 LBR tests to provide strength data for pavement design (3 tests). » EGS will prepare a Geotechnical Memorandum that includes the following: a. Summary of field and laboratory testing. b. Depths to measured groundwater and estimated “normal” seasonal high groundwater. c. Plan view of the existing roadway showing the thickness of structural asphalt, thickness and type of base material, condition of subgrade, location of buried organics (if present), location of underdrain (if present), and anomalies that may impact the performance of the roadway (if present). Deliverables: Geotechnical Memorandum Subtask 2-2 Investigate Anomalies Identified in GPR Survey Objective: To investigate and assess the existing condition of the roadway, and develop recommendations for remedial measures necessary to repair subgrade deficiencies. Activities: # EGS will perform the following field investigation: a. Install 1-15 feet deep soil boring at each anomaly identified in the GPR Survey (maximum of 3 borings). b. Install pavement cores at anomaly locations (3 cores). c. Grout soil borings and patch roadway surface. « EGS will conduct the following laboratory analysis: a. Perform 1 grain-size classification per 10 feet of soil boring (4 tests). b. Perform 1 plasticity test per 20 feet of soil boring (2 tests). c. Perform 1 organic content test per 10 feet of soil boring (4 tests). « EGS will prepare a Final Geotechnical Report that include the findings in Subtask 2-1 and the following: a. Discussion of possible causes of existing pavement distress. b. Recommendations for remediation of distress. c. Construction considerations and recommendations. Deliverables: « Final Geotechnical Report TASK 3 - ROADWAY REPAIR ANALYSIS AND MEMORANDUM (PHASE I) Subtask 3-1 Geotechnical Coordination Objective: Coordinate with EGS to facilitate the most plausible corrective measures along the corridor. HDR Activities: = Coordinate with EGS to investigate possible failure causes. " Prepare pavement designs for corrective measures based on _ geotechnical investigation and traffic counts (e.g. Milling and resurfacing, Full Depth Reclamation). « Prepare cost estimates (SY basis) of corrective measures (e.g. Milling and Resurfacing and Full Depth Reclamation). Deliverables: = Cost Estimates to be utilized in preliminary design meeting « Pavement Designs Subtask 3-2. Memorandum Preparation Objective: Prepare a recommendations memorandum for proposed improvements along project to be utilized as basis for design. HDR Activities: Prepare a final memorandum with updated cost estimates and final recommendations after completion of Phase I Design Meeting (Subtask 1-3). Deliverables: Final Memorandum TASK 4 — PHASE IT PROJECT MANAGEMENT (PHASE II) Subtask 4-1 Phase II Project Management Objective: Maintain communication, coordination, and documentation with Okaloosa County Project Manager during Phase II services (6 months). HDR Activities: » HDR will provide County PM a monthly status report to accompany invoices. « HDR will maintain an organized project filing system to retain documentation. HDR Deliverables: Monthly status reports. Subtask 4-2 Utility Coordination Meetings Objective: Coordinate proposed improvements with utility owners. HDR Activities: Conduct two utility coordination meetings to discuss proposed improvements with utility owners. HDR Deliverables: Draft meeting minutes and distribute. Subtask 4-3 County Staff Progress Meetings Objective: Maintain and track progress on coordination issues. HDR Activities: Conduct two meetings with Okaloosa County to coordinate project. HDR Deliverables: Draft meeting minutes and distribute. TASK 5 —- SURVEY (PHASE IT) Topographical survey will be conducted by Nobles Consulting Group, Inc. (NCG). Subtask 5-1 Alignment NCG will determine an alignment along 3.1 miles of MLK Drive and Green Acres Road from a legal description on file with the Engineering Department of Okaloosa County and a AutoCadd dwg in NCG’s files. NCG will utilize existing found control in the existing database as previously provided from Okaloosa County Engineering Dept. NCG will re-check and re-tie secondary control points as set on prior project of MLK. NCG will extend the alignment along MLK to the South for 2800 linear feet, to south of the transition point at NW Butler Drive. NCG will back station the existing alignment, so it matches with existing data on MLK. NCG will create a new alignment from the North end of MLK Drive, East along Green Acres Road to the centerline of Lewis Turner Blvd, consisting of approx. 4100 linear feet. NCG will create a station equation at the intersection of MLK Drive and Green Acres Rd. NCG will not have the Right of Way determined with this alignment. It will be an approximation or referenced in by Okaloosa County GIS shape files. NCG will not stake alignment or place reference points in the field. Subtask 5-2 Horizontal Location Survey (2.8 Miles) NCG will