Attachment2_Site Survey Requirements for Rynne Day-Use Area.pdf

Site Survey Requirements for Rynne Day-Use Area Site Renovation (P25-3586-D1A)

1. SCOPE OF WORK

A. The scope of work shall consist of doing all field work and office work necessary to furnish accurate base maps and existing conditions plans, suitable for construction drawings. The intent is that the work produces a field verified compiled survey with locations of critical elements and regulatory limits.

B. The work shall be done under the supervision of an Engineer or Professional Land Surveyor (PLS), registered in and licensed by the Commonwealth of Massachusetts, who shall certify under their seal the accuracy of the survey.

C. Survey Limit Line: Per the attached plan/map.

D. The survey should include all information needed to support the construction of the new, replacement, playground, and related site work: such as site demolition and preparation, paving, planting, electrical and utilities, as noted in the RFP.

E. DCR will provide any existing plans for the site.

1.1 TOPOGRAPHIC AND EXISTING CONDITIONS SURVEY

A. Pre-Survey:

1. Property Lines: Obtain property lines from recorded land and survey references from the Registries of Deeds, as well as DCR legal/acquisition records and any relevant DCR historic plans.

2. Right of Way Research: Confirm location of any Rights-of-Way within the survey area from record layout plans.

a. If a layout plan is not available, confirm the Right-of-Way is shown graphically from research at the City and Registry.

b. Confirm property lines are shown graphically from existing city layouts or Assessor maps, including abutter names. Abutter names shall be shown on the base plan with recording and Assessor information.

c. Any monuments found shall be shown on the base plan.

3. Utility Research: Obtain plans of record from all relevant utility companies. Add underground utilities to base plans and confirm that underground utilities are as shown on plans of record.

B. Contours: Contours for the entire site shall be accurately plotted at one-foot (1') contour intervals.

C. Spot Grade Elevations: Spot grade elevations shall be oriented in the same direction and read from left to right. Spot grades shall be provided in areas of bumpy or inconsistent slopes between contours and in areas of high use, such as active lawns, pavement and paths. Elevations shall be provided for the top and bottom of all considerable breaks in grade.

1. Within natural ground, lawn and planted areas, spot grades shall be shown to one-tenth of a foot (0.1').

2. Within all areas of built-up improvements such as pavements, curbs, steps, walls, utilities or other site improvements, spot grades shall be shown to one-hundredth of a foot (0.01').

D. Locate the following manmade site and building features:

1. Buildings: Show building outlines, entranceways, areaways, roof overhangs, downspouts, significant architectural projections and other pertinent data for the buildings on site, including finished floor elevation (FFE).

2. Drives, walks, ramps, curbs, curb cuts, gutters and culverts. Indicate type and/or surface material.

3. Public streets and/or roads through or adjacent to property.

4. Fences, walls, steps, handrails, signs and site furnishings.

E. Locate the following natural site features:

1. All trees which have a trunk diameter of four inches (4") or greater, and all multi-stemmed trees.

a. Locate live trees and standing deadwood trees.

b. Indicate trunk diameter at breast height (DBH) and species.

c. Show extent of woodland areas.

2. All shrub massing; show full spread and dominant species.

3. Extent of lawn areas.

4. Floodplains, hazard areas, wetlands and wetland boundaries and setback lines.

5. Delineate and include ground plane characteristics of note, such as areas of bared tree roots, erosion, rocky soil, etc.

6. Other site and project specific information, such as boring locations or soil types, as directed by the Project Manager.

F. Utilities:

1. Locate all catch basins, drain inlets, manholes, leaching fields, etc., on or adjacent to the site and indicate the following:

a. Type and function of the structure; connections; sizes; direction of flow; and elevations (Rim/surface, invert and bottom).

b. For multiple connections, identify inverts by compass point headings (e.g.

100.01 NE, 98.50 SW, etc.).

2. Locate all utility poles, electric and telephone lines, fire and police call boxes, and indicate ownership, including any easements. Include overhead and buried lines.

3. Locate all surface and subsurface utility lines, valve boxes, handholes, meter boxes, hydrants, tanks, potable water wells, etc. and indicate the following:

a. Ownership; type; and size.

b. Any required setbacks or easements around utilities.

c. Locate and include abandoned utilities.

G. Elevations Required:

1. Buildings: FFE and ground grade at all corners and at all entrance, exit, or access points, as relevant to the scope of the project.

2. Roads, Drives, and Sidewalks:

a. Provide center of the street elevations (max. of twenty-five-foot (25') intervals).

b. Indicate high and low sides of existing sidewalk, top of curb and bottom of gutter (max. of twenty-five-foot (25') intervals).

c. At road intersections show all elevations necessary to construct a roadway profile and curb ramps (max. of twenty-foot (20’) intervals).

d. All intersections of drives, sidewalks and roads.

i. Cross slopes of all walks must be checked at two-foot (2’) intervals, and where over 2%, noted as such on plan.

ii. Sidewalk and path running slopes shall be checked at intervals sufficient to include all slope changes.

3. Trees: One spot at the base of the trunk. Provide multiple elevations at cardinal points if they vary more than an inch around the tree.

4. Steps, Walls, and Curbs:

a. Indicate elevations at the base, top, corners, and at cheek walls for all steps. If step risers are not equal, provide the elevation of each step. If steps are pitched more than 2%, provide rear and nose of tread elevations.

b. Indicate elevations at the top and bottom of walls and curbs, and as needed where breaks in consistent slope occur (max. of twenty-five-foot (25') intervals).

5. Rim elevations of all utility structures.

6. Inverts at all sewers, storm drains and culverts.

7. Unusual site characteristics, such as rock outcroppings, areas of erosion, etc.

H. Environmental Considerations: Surveyor shall obtain the services of a Massachusetts-licensed

Environmental Scientist who shall field-flag the following resource areas, as applicable to existing site conditions:

1. Wetlands Protection Act limits and buffer zones (according to local, state and federal definitions).

2. FEMA floodplain.

3. Other environmental jurisdictions, including historic tidelands, areas of critical environmental concern (ACECs), area use limitations (AULs), vernal pools, etc.

4. Environmental Scientist shall deliver a brief environmental report and a copy of the field transects.

I. All surveyor field marks shall be temporary and removed by the Surveyor at completion of the field work (excepting two (2) permanent Benchmarks).

1. Under no circumstance shall site features be marked with spray paint or other permanent materials.

2. Surveyor shall be liable to remove and restore any damage to site features at direction of the Project Manager.

1.2 DELIVERABLES

A. All survey plans shall conform to the provisions of 250 CMR 1.00 – 6.00 – Board of Registration of Professional Engineers and Land Surveyors regulations.

B. Base Map and Existing Conditions Plan:

1. Drawings from surveys shall be electronic files in DWG format. Applicable .ctb or .shx files used in the .dwg file shall also be provided.

2. A draft survey in PDF format shall be emailed to the Project Manager for review.

3. The final survey, in both DWG and PDF formats, shall be emailed or sent to DCR via file transfer once complete.

4. A hard copy of the survey shall consist of ink on paper.

a. The hard copy shall be stamped with the professional stamp of the Surveyor or

Engineer, signed and dated.

C. Survey shall be referenced to the State Plane Coordinate System using the North American Datum of 1983 (NAD 83) and the National Geodetic Vertical Datum of 1988 (NGVD 88).

Datum reference is Boston City Base (BCB datum elevation of 5.65 feet equals 0.00 NAVD 1988).

1. Provide two (2) permanent benchmarks on site, (one to the north end of the property and one to the south end of the property), clearly identified on the survey plan, for use during construction.

D. Drawing scale shall be 1” = 20’-0”.

E. Drawings shall be oriented with True North at the top of the sheet.

F. Suitable line types, line weights and symbols shall be used to designate property lines, buildings, contours, walls, utilities, boundaries and physical objects on the site. A legend or key containing all lines and symbols shall be included on each Drawing.

G. All text, except contour numbers, shall be oriented to read with North at the top of the sheet.

Contours shall be indicated as dashed lines with five-foot (5') contour lines weighted more heavily than one-foot (1') contour lines. Number all contours on the high side of the contour line.

H. Sheet size and orientation: 36” x 24”, Landscape

I. The title shall contain:

1. Scale and Date

2. True North point

3. Datum

4. Address of property

5. Signed and certified by Surveyor

6. Surveyor contact information

7. Book and Page citations from the County Registry of Deeds