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5. Observe and record any grade breaks (swales, berms, slopes, etc.). 6. Observe and record all above ground utilities (power poles, water meters, water valves, riser boxes, cleanouts, etc.). 7. Observe and record all storm water drainage structures (pipe/culvert inverts, catch basins, spillways, etc.), including inverts of associated pipes outside of the right of way. 8. Observe and record all above ground visual sanitary sewer. systems (gravity flow or force mains), including inverts of associated pipes outside of the right of way. 9. Observe and record all wood lines, tree lines and Oak trees 6 inches .and larger within the subject right of way. (Locations of Pine trees, Brazilian Pepper trees or cabbage palms are not included in this proposal) 10. Cross-sections will be observed at 100 foot intervals and spot elevations 20 feet either side of right of way limits. IV. I.R.F.W.C.D. Lateral and Sub -Lateral Right of Way Topography — Top of banks adjacent to all roads surveyed within the corridor will be located at each cross-section. A one-half (1/2) canal cross-section (west top of bank, bottom of bank, toe and centerline of ditch) willbe taken every 500 feet. Including the following items: 1. Observe and record all paved and unpaved roads used for access by the I.R.F.W.C.D. within the corridor. 2. Observe and record all drainage structures (pipe culvert inverts, catch basins, spillways, etc.), including inverts of associated pipes outside of the right of way. 3. For the I.R.F.W.C.D. Sub -Lateral Canals C-5 and C-6, observe and record cross-sections at 100 foot intervals. 4. All elevations will be referenced to the North American Vertical Datum of 1988 (N.A.V.D. 88) and tied to Indian River County or National Geodetic Survey (N.G.S.) benchmarks. Any Indian River County or N.G.S. benchmark within the project's corridor will be observed, recorded and indicated upon the survey. 5. The Right of Way Topographic Survey will be based upon the 1983 North American Datum (NAD83), 2011 adjustment and projected in the Florida State Plane Coordinate System, East Zone. All horizontal control points will be tied to the Indian River County Real -Time Kinematic Global Positioning System Control Network. V. Computations and Drafting - Road and I.R.F.W.C.D. Right of way Topography Maps: 1. Data reduction, computation/verification of right of way limits (as furnished), horizontal and vertical control, computation and ties to sections, tracts and / or adjacent parcels. 2. Drafting of topographic right-of-way maps depicting the existing road right of way and ultimate right of way, as provided, of a portion of 74th Avenue and existing above ground features (No title work, review or research included). 3. Data reduction, computation of right of way limits, horizontal, vertical control and drafting of I.R.F.W.C.D. right- of-way depicting the existing specific features and cross section transects requested of a portion of the Indian River Farms Water Control District Lateral `C'/Range Line Canal, Sub -lateral Canal's `C5' and `C6' all within parts of Sections 25, Township 33 South, Range 38 East, Indian River County, Florida. General Information: 1. Indian River County to furnish boundary surveys, recorded plats, Right of Way Maps and/or relevant information helpful to the positioning of the project from Indian River County files. 2. Indian River County will provide owner/encumbrance and title search reports of adjacent parcel bordering and/or within the established limits along the corridor. 3. If required - Indian River County Surveying Division will coordinate and/or notify adjacent parcel owners along the specific route of the possible commencement dates of survey services and, if necessary, the possible access by the contractor to the respective adjacent parcels to perform their duties. J•\SURVEY WORK AUTHORIZATIONS\IRC Survey 2014-2015\15-234S_IRC_W0_74th Av ROW (Oslo to 17thStSW)-Amend # 1.doc 3 of 4