Attch_13_Survey_Specs.pdf

3.7 LAND SURVEYING REQUIREMENTS

Land surveying, to include all projections and datum points, shall be required for all modifications affecting civil site plans (e.g., utilities, additions, new construction or storm water modifications). The survey shall be performed by a State of Florida Professional Licensed Surveyor (PLS) and shall be submitted by the Contractor in digital and hard copy format.

3.7.1 Contractor Provided Survey Support

Record drawings shall reflect all civil site developments such as new facility and/or land modifications, external structural changes to aboveground structures, and changes to underground structures and utilities external to facilities located on lands owned by or held in leasehold interest of the federal government.

Information in record drawings shall include, but not be limited to:

Location of all new lines, conduits, valves, fittings, fire hydrants, meters, terminal points using at least two ties to permanent points (manholes, power poles, curbs, or storm water inlets), or GPS coordinates with accuracy to 1 foot or better unless more stringent accuracy requirements are specified in other sections of this contract. Locate manhole, catch basin, and storm water control structures noting top of rim, inverts, weirs, dimensions and conduit sizes and material entering the structure. An acceptable station and offset system may be used for service lines and fittings only.

Location of new lines from property easement lines or edges of pavement at intervals of 300 feet.

All utility routing and interface changes shall be reflected on the drawings to scale and defined with sufficient dimensions.

Locate with elevation all improvements constructed or modified including but not limited to pavement, striping, curbs, sidewalks, signs, gutters, walls, fences, buildings, pads, open stormwater conveyance systems, stormwater retention/detention ponds, etc. Elevation information should be adequate to illustrate flow patterns, retention capacity and overflow levels. Ground contours at intervals of 1 foot in elevation shall be shown on unpaved areas of the site on the sketch of survey.

Contractor shall facilitate the receipt of surveyed coordinates for facility footprint corners coordinates and underground structures and utilities external to facilities by submitting digital data using the spatial reference identified below to 45 CES through the Contracting Officer within five (5) working days of foundation construction, or open excavation.

Record drawing prints will be drawn at a minimum scale of 1 inch = 100 feet. Areas requiring additional detail shall be enlarged as necessary.

Record drawings shall be provided in digital format. Information should be provided in separate layers/levels as specified by GIS and in at least the same degree of separation as the design drawings that were provided. Designation for naming of layers/levels shall adhere to current DOD, A/E/C CAD Standards with strict adherence to layer format. https://cadbim.usace.army.mil/. New like items shall be contained in the same levels to permit easy conversion to GIS layers.

All lines, letters, and details shall be sharp, clean, and fully legible.

5 (Five) reproducible print and one digital copy in an electronic storage media of the Contractor Survey Record Drawings are required for submittal.

3.7.1.1 Horizontal Reference Datum

All surveys shall be referenced to Florida State Plane Coordinate System, East Zone, North American Datum 1983/2011 adjustment based on Second order Class II horizontal control monument.

Addendum to Specifications for 07-1562 Repair F, G and J Lines 20 Apr 2017

3.7.1.2 Vertical Reference Datum

All surveys shall be referenced to North American Vertical Datum (NAVD) 1988. The survey shall include a description of the reference benchmarks from which the NAVD has been determined.

(End of Addendum)