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Table of Contents <br />Description Page <br />A.Introduction ...................................................................................................................................... 1 <br />A.1.Project Description .............................................................................................................. 1 <br />A.2.Site Conditions..................................................................................................................... 2 <br />A.3.Purpose ................................................................................................................................ 3 <br />A.4.Background Information and Reference Documents .......................................................... 3 <br />A.5.Scope of Services ................................................................................................................. 3 <br />B.Results .............................................................................................................................................. 4 <br />B.1.Geologic Overview .............................................................................................................. 4 <br />B.2.Ground Penetrating Radar (GPR) ........................................................................................ 5 <br />B.3.Pavement Core Results ....................................................................................................... 6 <br />B.4.Boring Results ...................................................................................................................... 7 <br />B.5.Groundwater ....................................................................................................................... 8 <br />B.6.Laboratory Test Results ....................................................................................................... 8 <br />C.Recommendations ........................................................................................................................... 8 <br />C.1.Design and Construction Discussion ................................................................................... 8 <br />C.1.a. Rehabilitation Methods .......................................................................................... 9 <br />C.1.b. Karth Lake Park Trail ............................................................................................... 9 <br />C.1.c. Reuse of Pavement Materials ................................................................................ 9 <br />C.1.d. Reuse of On-Site Soils ........................................................................................... 10 <br />C.1.e. Groundwater ........................................................................................................ 10 <br />C.1.f. Construction Disturbance..................................................................................... 10 <br />C.2.Site Grading and Subgrade Preparation ............................................................................ 10 <br />C.2.a. Utility Subgrade Stabilization ............................................................................... 10 <br />C.2.b. Corrosion Potential .............................................................................................. 11 <br />C.2.c. Excavation Oversizing ........................................................................................... 11 <br />C.2.d. Excavated Slopes .................................................................................................. 11 <br />C.2.e. Excavation Dewatering ......................................................................................... 12 <br />C.2.f. Engineered Fill Materials and Compaction .......................................................... 12 <br />C.3.Full-Depth Reclamation ..................................................................................................... 13 <br />C.3.a. Full-Depth Reclamation Preparation .................................................................... 13 <br />C.3.b. Full-Depth Reclamation Design Section ............................................................... 14 <br />C.3.c. Bituminous Pavement Materials and Compaction .............................................. 14 <br />C.3.d. Performance and Maintenance ........................................................................... 14 <br />C.3.e. Miscellaneous Bituminous Recommendations .................................................... 15 <br />C.4.Mill-and-Overlay ................................................................................................................ 15 <br />C.5.Karth Lake Park Trail .......................................................................................................... 16 <br />C.5.a. Base Grade Proofroll ............................................................................................ 16 <br />C.5.b. Design Sections .................................................................................................... 16 <br />D.Procedures...................................................................................................................................... 17 <br />D.1.Ground Penetrating Radar ................................................................................................ 17 <br />D.1.a. Data Collection ..................................................................................................... 17 <br />D.1.b. GPR Analysis ......................................................................................................... 17 <br />D.2.Pavement Coring and Hand Auger Borings ....................................................................... 17 <br />D.3.Penetration Test Borings ................................................................................................... 18 <br />D.4.Exploration Logs ................................................................................................................ 18