SPECIFICATIONS FOR SURVEYS FOR PRIMARY AND SECONDARY HIGHWAYS Flipbook PDF

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STATE OF OKLAHOMA DEPARTMENT OF TRANSPORTATION SURVEY DIVISION

SPECIFICATIONS FOR SURVEYS FOR PRIMARY AND SECONDARY HIGHWAYS OCTOBER, 2010

PREFACE

These Specifications are written for projects utilizing the United States Survey Foot as the unit of measurement. For each specific project, additional requirements and/or amendments to these specifications may be provided by the Oklahoma Department of Transportation’s, Survey Division (ODOT, SD), and shall be covered by Survey Special Provisions written at the time of contract negotiation and/or during the survey scope definition.

I. GENERAL

A. The scope and coverage of the field survey to be accomplished are as necessary to prepare Functional, Right of Way, and Construction Plans and shall be made in accordance with; - the standard practices of the Department of Transportation, Survey Division; - these Survey Division Specifications for Primary and Secondary Highways; - any detailed instructions furnished by the Survey Division in the form of Survey Special Provisions, etc.; - The Oklahoma Minimum Standards for Land Surveying. - generally accepted Professional Land Surveying practices. B. All field surveys, computer files, and other documents shall be complete in every respect, and the information shall be set forth in a professional manner. C. All reference points for survey monuments shall be of a permanent nature, such as a #4 rebar/iron pin, “x” on concrete walk, approved monument, R.R. spike in a tree or any accessible permanent object with a precise measuring point. Bearings and distances shall be shown between all reference points and the points they are referencing. All points and reference points set in cultivated fields shall be buried a minimum of 12” deep. All reference points shall be set on or outside the anticipated Right of Way Lines so they will not be disturbed or destroyed by construction, if possible. The maximum distance between reference points shall be 100 feet, where practical. D. The following equations shall be shown with and to existing Highway Projects (Plans) or Surveys, as necessary to accurately convey the mathematical relationships between them: 1. Station Equations, 2. Bearing Equations, and 3. Elevation Equations

II. CONTROL

A. GENERAL There are two distinct accuracies for Horizontal and Vertical Control: 1. Network Accuracy: Accuracy that is relative to the National Spatial Data Infrastructure (NSDI); typically, the NGS Continuously Operating Reference Stations (CORS). 2. Local Accuracy: Accuracy that is relative to the specific project itself. 1

Both accuracies will be expressed as Circular Root Mean Square Error (RMSE) at 2 Sigma (95% Confidence). These accuracy definitions are currently used by the National Geodetic Survey, and are better suited to modern three dimensional survey control networks than the older, Linear Accuracy definitions (1st Order, 2nd Order, etc). The following Survey Control Data notation is contained in the ODOT, Survey Division Microstation® Design File Standard, as part of the first Survey Data Sheet. This notation must appear on the Survey Data Sheets and on the title sheets of Functional, Right of Way, and Construction plans.

SURVEY CONTROL DATA 1. HORIZONTAL CONTROL: A. Horizontal control for this survey is the NGS Oklahoma State Plane Coordinate System, NAD83 (CORS), (_________Zone).* B. ESTIMATED NETWORK ACCURACY – North: 0.10 Ft. East 0.10 Ft. Ellipsoid: 0.3 Ft. C. LOCAL ACCURACY (CONFIRMED BY RTK OR TRAVERSE) – North: 0.03 Ft., East 0.03 Ft., Ellipsoid: 0.06 Ft. (Note these values are the maximum allowable Root Mean Square Error (RMSE) at the 95% Confidence Level. Actual values will vary by project). 2. BEARINGS: The bearings shown herein or hereon are grid bearings derived from the NGS Oklahoma State Plane Coordinate System and are not Astronomical. The angle of variance between grid north (GN) and the astronomical true north (TN) is depicted diagrammatically. 3. VERTICAL CONTROL: A. Level datum is NGS, NAVD 88.** B. ESTIMATED NETWORK ACCURACY: GPS Network Adjustment: 0.10 Ft. - orGPS Double OPUS Solution: 0.20 Ft. -orDirect Differential Leveling, Double Loop: 0.10 Ft. LOCAL ACCURACY: Direct Differential Leveling (through the length of the project): 0.02 Ft. (Note these values are the maximum allowable Root Mean Square Error (RMSE) at the 95% Confidence Level. Actual values will vary by project). * Project specific. Show only that which applies. ** Project specific as specified by the Oklahoma Department of Transportation, Survey Division. B. HORIZONTAL CONTROL 1. The survey is to be placed on the NGS Oklahoma State Plane Coordinate System, NAD83(CORS), unless express prior approval is granted by ODOT, Survey Division to use a different horizontal datum. Primary Control will be derived from a fully constrained, Three Dimensional Static GPS Network Adjustment (NOT an OPUS Solution), utilizing a minimum of two NGS CORS and also including the nearest hard monument in the NAD83(1993) HARN Network. This will confirm consistency between the CORS and local monumentation. To ensure the highest accuracy, the Network will be fully constrained vertically, by inclusion of at least 4 acceptable benchmarks (The CORS in the Network Adjustment count as acceptable benchmarks). These may be Published NGS or USGS Monuments, or may be taken from previously completed ODOT Projects, as approved (in advance) by ODOT, Survey Division. Double OPUS Solutions (different days, different times of day) will also be obtained, and will serve as a general confirmation of the integrity of the adjustment results. NOTE: The use of OPUS as a stand alone source for Primary Survey Control will NOT be permitted, unless it is specifically authorized by ODOT, Survey Division, in the Survey Scope and Special Provisions.

2. X and Y coordinate values shall be shown to a minimum of four (4) positions to the right of the decimal point.

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Example:

X = 2,892,532.0695 Y = 240,246.7353

3. Bearings shall be based on the NGS Oklahoma State Plane Coordinate System, NAD 83(CORS), and shall be computed and shown to two (2) decimal places of a second (nearest 0.01”) for all tangents of the survey centerline and all land and property lines.

C. VERTICAL CONTROL 1. Levels are to be tied to not less than two (2) bench marks (acceptable to ODOT, SD) at each end of the level line, unless otherwise authorized by ODOT, SD, or tied to not less than four (4) benchmarks, if elevations are derived from GPS. NOTE: Authorization to utilize GPS for elevations will appear in the Survey Scope and Special Provisions. Otherwise, all benchmark elevations will be derived by direct differential leveling from published NGS, USGS, or ODOT benchmarks, without exception. 2. A Double Run (Loop) of Check Levels, independent of the cross sections or Digital Terrain Model (DTM) levels, will be run and the results submitted with the completed survey. The Check Level Loop must be accomplished by Direct Differential Leveling with a spirit level or digital level (i.e., trigonometric leveling or GPS leveling shall not be acceptable for determining bench mark elevations, except as defined above). Source Benchmarks MUST be denoted in the Check Levels and Benchmark List, with complete description, including Station and Offset. Benchmarks falling outside the Survey Stationing will be described by narrative. The unadjusted vertical differences between intermediate benchmarks, for each Level Run, are to be shown in the Check Levels and Benchmark List. The Adjusted Elevations for each benchmark will be derived by distributing the error between Source Benchmarks, equitably along the entire length of the Level Loop, with each intermediate benchmark receiving a proportional share of the error. Adjusted Elevations will be the source for all Digital Terrain Modeling, and Topography. 3. In towns, benchmarks shall be set not greater than one block (or 300 feet) apart, and in rural sections benchmarks shall be set approximately 700 feet apart, where practical. 4. Benchmarks shall be on points of permanent or semi-permanent nature on, or outside, the anticipated Right of Way, where reasonably possible. Benchmarks in utility poles are considered temporary. Where iron pins are used for benchmarks, the iron pin shall not be less than #6 by 30” long. Nails smaller than 60d shall not be used for benchmarks. For benchmarks in trees, 80d nails or railroad spikes shall be used. 5. The Vertical Control shall meet or exceed the following accuracy criteria: NETWORK ACCURACY (FROM GPS OR LEVELING): 0.10 FOOT LOCAL ACCURACY (CONFIRMED BY LEVELING): 0.02 FOOT NOTE: Even on projects where GPS-Derived Elevations are not permitted for the establishment of benchmark elevations, controlling benchmarks must be included in the GPS Network Adjustment, and their elevations held as Fixed. The Estimated Network Accuracy of new benchmarks will be compared against the results of the leveling. This will ensure that leveling results are consistent with the vertical component of National Spatial Data Infrastructure (NSDI) i.e., CORS. If substantial differences between elevations derived from GPS and those obtained by leveling are encountered, ODOT Survey Division should be consulted for guidance in how to proceed.

III. CENTERLINE / ALIGNMENT

A. Surveys along an existing highway must use the Centerline of the Highway, as reestablished from existing ODOT Surveys or Highway Plans. A careful examination of those documents, and recovery of monuments and/or Reference Points, are essential to the accurate establishment of the Highway Centerline. Bridges and other massive drainage structures depicted

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on the plans may also be used to determine the exact location of the Centerline of the Highway. Note that the Centerline of Highway may, or may not be coincident with the Centerline of the Existing Paving, or with the Section Line. B. Survey centerline stationing shall run from South to North and from West to East, where practical. The Consultant shall submit a plan to the Department of Transportation, Survey Division, for approval of the stationing to be used on the Survey Centerline. C. Stationing will be U.S. Survey Foot based. “Stations” are established every 100 feet from a point of beginning. Stationing for Points on Tangent (POT’s), Points of Intersection (PI’s), Points of Curvature (PC’s), Points on Sub-Tangent (POST’s), etc. shall be shown to the nearest 0.01 of a foot. Example: 339+34.27 D. All new curves shall be computed on the arc definition based on the length of the radius, rounded as follows: R = ≤ 999.99’, round to nearest 10’ R = 1,000’ – 1,999.99’, round to nearest 50’ R = ≥ 2,000’, round to nearest 100’ All computed functions shall be computed to the nearest 0.001’. Curve data will be shown as: Example:

P.I. Sta. 104+87.999 X= Y= ∆= (degrees, minutes, seconds) D = (degrees, minutes, seconds) T= (feet) L= (feet) R= (feet) E= (feet) C= (degrees, minutes, seconds) NOTE: Oklahoma Minimum Standards now require the Chord Bearing, even on Tangent Curves. Existing curves which were originally defined by the radius of curve using Metric (SI) units of measurements will be converted by a straight mathematical conversion of the radius value, then rounded to the nearest degree of curve divisible by four (4), i.e., 1˚15’00”, 2˚30’00”, etc.. The curve data will then be recomputed based on the converted degree of curve. D. The intersection points of the Centerline of Survey with all Section Lines, Quarter Section Lines, Subdivision Lines and Centerline of Streets shall have points set on them and referenced. In addition to the Reference Point information, these points of intersection shall have the following shown; stationing, coordinates, intersecting angles and distances each direction to the land corners. E. All P.O.T.’s, P.I.’s, P.C.’s, P.T.’s, and P.O.S.T.’s or any other principal control point shall be iron pins, approved monuments or well defined crosses cut in concrete and shall be referenced to permanent points. In no instance will wooden stakes be accepted. The maximum distance between Centerline control points shall be 1,000 feet, where practical. A minimum of three reference points shall be set on each point referenced and arranged so that, at least two of the reference points shall fall on a true line passing through the point being referenced, either by both reference points being on the same side or on both sides, with the angle from the line or lines to be as great as practical (near perpendicular to one another, for maximum strength of figure). Reference points shall be set and described so as to make them as easily recoverable as possible.

IV. TOPOGRAPHY

A. In urban or platted areas all topography shall be obtained for a minimum of one-half block on both sides of the centerline of survey or approximately 150 feet beyond the anticipated Right of Way. In rural areas all topography within and approximately 200 feet beyond the anticipated Right of Way Lines shall be obtained. In addition, any other topography that might affect the acquisition of Right of Way or the preparation of the plans shall be obtained. Typical examples are homes or businesses that are located beyond the normal distance that topography is obtained. If there is an

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existing driveway, used to access to such structures, then the buildings must be located and identified in the survey. B. Topography to be located/identified includes, but is not limited to; existing paving, roads, trails, bridges/drainage structures, utility lines, buildings, driveways, gates/field entrances (show width of gates), mail boxes, gas pumps, storage tanks (both above and below ground), and any other manmade cultural or topographic feature that might affect proper design and/or impact Right of Way acquisition. C. If aerial mapping is utilized, all topographic items that cannot be determined with sufficient accuracy from the aerial mapping shall be located by field methods and the data merged into the aerial mapping data. D. If any topographic features are discovered during the course of the survey, that are suspected to be of historical, archaeological, or cultural significance, such as Native American Graves, or other evidence of occupation by prehistoric peoples, notification must be sent immediately to ODOT’s Environmental Programs Division, so they can investigate the site in question. At no time will such sites be depicted on the Survey Data Sheets. In the Historical Letter and Written Report, they should be described as “Potential Cultural Resource Sites” with no specific information given, as to the exact location or nature of the sites. E. Areas such as private dumps, underground fuel storage tanks, etc. should be identified on the Survey Data Sheets as “Potential Environment Contamination”. Specific details of these sites are to be included in the Historical Letter and Written Report.

V. DIGITAL TERRAIN MODELING

A. Digital Terrain Model (DTM) data shall be taken to a minimum of 150 feet right and left of the centerline of survey or to a minimum of 50 feet beyond the proposed new right-of-way lines, whichever is greater. If cross-sectioning is used, in addition to other necessary level readings, readings shall be taken right and left of centerline of survey at 25 feet intervals out to 150 feet, then at 50 feet intervals beyond 150 feet, if necessary. B. Whether cross sections or DTM are obtained by photogrammetric methods, break line method using total stations or RTK GPS, or by Lidar, the data shall be compiled into Microstation® proprietary .DGN Files, as detailed in the Survey Scope and Special Provisions, written at the time of contract negotiations, and detailed in the ODOT Survey Division Standards. C. The following level readings shall be taken and recorded on all drainage structures crossing the Survey Centerline: Beginning with a reading on centerline and going right and left: Top of Box/Pipe, Top of Headwall, Top of Opening, Box/Pipe Flowline, End of Apron, and/or Dirt Flowline. These readings shall be to create a three dimensional depiction of the structure in the Microstation® Design File. D. For Roadway-Size Drainage Structures (culverts less than 20 feet in length), a separate flowline profile (3 dimensional breakline depicting horizontal and vertical location) of the stream shall be obtained for a distance of 500 feet upstream and downstream. For Bridge-Sized Structures (Double 10 foot culverts or larger) flowline profiles will be obtained for a distance of 1000 feet upstream and downstream. Intervals between individual readings will be a maximum of 25 feet for the first 150 feet, then 50 feet beyond, with care being taken to obtain readings at significant horizontal breaks or vertical “head-cuts” in the flowline. E. At Section Line Road or other road crossings, the DTM and topography limits will be extended to a distance of 500 feet on each side of the Centerline of Survey, beginning 150 feet before the crossing, and extending 150 feet after the crossing. On skewed Section Line Road Crossings, these limits will need to be extended to limits that will be defined in the Survey Scope and Special Provisions. Where the survey crosses existing State or Federal projects (highways), complete surveys shall be made on the alignment of the crossing project for not less than 500 feet

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on each side of centerline of survey with profiles of the paving and road ditches extending a minimum of 1,000 feet on each side of the Main Centerline of Survey. F. In Urban Areas, at Street Intersections, 3 dimensional breaklines shall be obtained at the Centerline of Streets, edges of paving, and ditch flowlines, for a distance of one block, or 300 feet, whichever is less. Additionally, if curbs are present, breaklines will be obtained on tops of curbs, and in gutters lines, for not less that one block or 300 feet, whichever is less. G. On all streams that require structures of bridge classification, (20 feet long or longer) a complete bridge survey shall be made. Stream banks and flowlines are to be located a minimum of 500 feet left and right of centerline of survey. H. From a minimum of 500 feet before, to 500 feet after the bridge location, DTM and Topographic Data will be extended to a minimum of 250 feet right and left of centerline of survey. I. Additional information shall be obtained when requested by ODOT, Survey Division, and set out in the Survey Scope and Special Provisions.

VI. UTILITIES

A. All public and privately owned utilities, such as pipe lines, gas lines, water mains and service lines, underground cables, power lines, telephone lines, storm sewers and sanitary sewers, to a minimum of 500 feet beyond the anticipated Right of Way, shall be located and identified, showing location, size, kind and ownership with name, address, and telephone number of owner. Elevations shall be shown on the top of all water meter boxes, manholes and valve boxes. The source of utilities information shall be denoted in the Survey Data Sheets, whether located by the owning company, or by a contracted locating company. The name of the owning companies, address, and contact telephone number will be shown on the Survey Data Sheets. B. On storm sewers and sanitary sewers that cross the centerline of survey, manholes, lamp holes, inlets and outfalls shall be located, extending to include to the first such feature falling outside the anticipated Right of Way, on each side of Centerline of Survey. On those paralleling (or near paralleling) centerline, all manholes, lamp holes, inlets and outfalls shall be located within 500 feet of the anticipated Right of Way.

VII. LAND SURVEYS

A. All work pertaining to Land Survey points that are calculated, monumented, or otherwise used in the survey will be performed under the responsible charge and direct supervision of a Professional Land Surveyor (PLS) licensed in the State of Oklahoma. The PLS shall prepare and certify the documentation required by Oklahoma Statute Title 65:3 – 119 and file the required documents as prescribed by this statute. Copies of all documents filed are to be submitted to the Survey Division, in digital (Adobe .PDF) format. The PLS shall also certify all other documents or maps required by these specifications or amendments thereto. B. All Public Lands Survey System (PLSS) Sections crossed by the Centerline of Survey and /or from which Right of Way is to be acquired, shall be completely bounded and all Section Corners and Quarter Section Corners shall be duly recovered or remonumented, as necessary. Mathematical Ties shall be made in both directions from the Centerline of Survey, and distances will be shown to the nearest Section Corner and Quarter Section Corner. All Section Corners and Quarter Section Corners monumented or found in place shall be referenced by a minimum of three Reference Points, as required by the Corner Perpetuation and Filing Act. A detailed diagram, depicting the Corner Monuments and their associated Reference Points will be shown on the Survey Data Sheets. The size and type of monument will be described in detail. A brief narrative, describing the history and pedigree of each corner, as well as justification for using a particular corner location will also be shown. The same is to apply to Original GLO/BLM/USGS Survey Meander Lines and Corners and all Original Government Survey Subdivision Lines and Lot Lines.

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C. All non-original corners shall be set in accordance with the Bureau of Land Management’s “Manual of Surveying Instructions” (Revised: 2009). D. All unplatted property ownership boundaries shall be accurately determined, based on a combination of Record Evidence and Field Evidence, with points calculated (not monumented) at the intersection with the Centerline of Survey, along with distances shown Left and Right, to the Existing Right of Way, and beyond, to the next Property Corners outside the Existing Right of Way. All distances shown on land ties shall be shown to the nearest one hundredth (1/100)(0.01) of a foot. NOTE: Existing Right of Way Lines are included in this definition of Property Lines. E. Where curves are involved, distances and bearings shall be shown between all Land and Subdivision Lines, and the Centerline Curve Tangents, as well as the distance between the Centerline Curve Tangent and the Centerline Curve. F. All platted Subdivision Lines, Block Lines, distances to Block Corners, distances from points on Centerline of Streets to Street Intersections, and distances to Subdivision Corners shall be accurately determined and depicted on the Survey Data Sheets. All lots and blocks partially within the anticipated New Right of Way limits shall be closed by a complete boundary, with dimensions shown for the Lots and Blocks. As a minimum, the Curve Radius, Length, and Chord Bearing must be shown on all curved Property Lines, Subdivision Lines, or Right of Way Lines. This is required by the Oklahoma Minimum Standards for Land Surveying. G. POT’s, POC’s, PI’s or POST’s, as applicable, shall be calculated for all street intersections (not monumented), and if the Centerline of Survey is not coincident with the Centerline of Street, the distance between them will be shown on the Survey Data Sheets.

VIII. DRAINAGE

A. Divide Lines for all drainage areas shall be determined by field ties, or obtained from aerial photographs, existing topographic maps and/or United States Geological Survey (USGS) topographic maps. Data obtained from such mapping products must be verified in the field. B. Drainage information shall include sufficient information to determine the runoff by the Rational method as set out in current Oklahoma Department of Transportation Design Policy. All drainage information shall be depicted within the Microstation® Design File, according to the current ODOT, Survey Division Standards. Typically, the following drainage information will be required: 1. Drainage Areas of 3 acres to 500 acres a. Show complete Rational Data b. Show Extreme high water elevation and historical information 2. Drainage Areas of 501 acres to 1500 acres a. Show complete Rational Data b. Show Extreme high water elevation and historical information c. Ravine sections right & left of Centerline of Survey (See Section 4, below) 3. Drainage Areas larger than 1500 acres a. Ravine sections ONLY (See Section 4, below) 4. Ravine Sections a. ODOT Bridge Division and Roadway Design Division will extract Ravine sections from the Digital Terrain Model, as needed on structures that are 350 feet or less in length. b. Ravine sections on bridges over 350 feet in length should be discussed with Survey Division. Additional survey width, including cross-flights along the waterway (Photogrammetric and Aerial Lidar Surveys only) may be required, and will be specified in the Survey Scope and Special Provisions. c. Ravine sections on longer structures WITHOUT additional flight coverage will need to be obtained by CONVENTIONAL FIELD METHODS. 1. Ravine sections should be located from Centerline a minimum distance of:

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2 x the length of the Proposed Structure 2. Both Upstream and Downstream d. When Ravine Sections are NOT obtained by the CONVENTIONAL METHOD, the following NOTE is to be placed in the Survey Data with the Rational Drainage Data: NOTE: RAVINE SECTIONS ARE TO BE EXTRACTED BY BRIDGE DIVISION OR ROADWAY DESIGN DIVISION FROM THE DIGITAL TERRAIN MODEL C. Extreme High water elevations shall be taken for all bridge structures and other major streams. Extreme care shall be taken in obtaining this information The location shall be shown where the reading was taken, (Bridge Seat, visible drift, or other spot delineated by witnesses), date on which the High Water Event occurred and the source of information. If the information is provided by a local resident, the name and address of the witness shall be shown. The Drainage Data shall be placed in the Microstation® Design File, according to the current ODOT, Survey Division Standard. Typically, the Drainage Data will include the following items: a. Centerline of Survey b. Stationing c. Section, Township and Range numbers d. Location and description of cross drains e. Drainage divides f. Drainage areas g. Vicinity and receiving waters identified/named h. Scale and north arrow 2. For each specific project, additional requirements may be provided by the Oklahoma Department of Transportation, Survey Division, and shall be covered by Survey Scope and Special Provisions prepared at the time of contract negotiation. G. City drainage maps shall be made when the survey is within the Corporate Limits of towns or within platted subdivisions. Detailed requirements will be defined in the Survey Scope and Special Provisions.

IX. PROPERTY OWNERSHIPS AND RIGHT OF WAY A. Copies of all recorded plats or subdivisions adjacent to the survey or through which the survey passes shall be submitted with the survey data, in digital (Adobe .PDF) Format. If available, plats of any unrecorded sub-divisions shall also be furnished. B. Recorded deeds and easements shall be used in determining Existing Right of Way. Existing Highway Plans shall also be utilized as a supplemental source of information. In most instances, the Deeds of Record will prevail. However, any conflicts between the two data sources should be discussed with ODOT, Survey Division, prior to completion of the project, with the goal of finding an equitable solution, agreeable to all parties.

X. RAILROADS A. At all railroad crossings complete surveys shall be made on the railroads using the Railroad Alignment and Railroad Station Numbers for a distance not less than 500 feet on each side of Centerline of Survey. DTM Data shall extend to a minimum of 50 feet beyond the Railroad Right of Way Lines. A three dimensional breakline of the top of each rail shall be obtained at intervals not to exceed 100 feet, to a minimum distance of 1,000 feet each side of Centerline of Survey. The nearest Railroad Milepost will be identified, and shown in the completed survey. Where separations by underpass are proposed, survey width will need to be increased to enable the design of “shoo-fly” detours, including sufficient data for drainage computations.

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Where the Highway Right of Way Line adjoins a Railroad Right of Way Line (i.e., survey is parallel or near parallel to the Railroad): Elevations shall be obtained on the top of each rail at each fifth (5th) station along Centerline of Survey (i.e., 105+00, 110+00, etc.) either by extending the DTM or by obtaining spot elevations. the location, size and flowline profiles of all railroad structures shall be obtained; a typical end section shall be obtained on all railroad bridges; and all railroad structures shall be described and mathematically tied to the Centerline of Survey.

XI. SUBMITTAL A. Survey Data Sheets are to be compiled within the Microstation® Design File, according to the ODOT, Survey Division Standard. As a minimum, the Survey Data Sheets are to show: the Centerline of Survey all Original Government Survey Lines (Section Lines, Quarter Section Lines, Government Lot Lines, Meander Lines, etc.); platted subdivisions; right of way lines (highway and railroad); property lines; major utility easements; any other highway and railroad alignments; B. The information on the Survey Data Sheets, as a minimum, is to include the following: 1. Centerline Bearings, Stationing, complete Curve Data, PI’s, PC’s, PT’s, POT’s at intersections with Land Lines, Centerlines of Streets, etc., with Reference Points for each. A Coordinate Geometry (COGO) Number will be assigned to every point calculated on the survey, with a corresponding “COGO List” shown within the set of Survey Data Sheets. 2. Bearings and distances on all Land and Property Lines with Reference Points and COGO Numbers on all major Land and Property Corners. 3. A Primary Control Diagram, depicting the graphical relationship between the Survey Project and the Published Control Points used to derive the coordinates. This will include descriptions of Published Control Points, and the bearings, and distances between all Control Points used in the Network Adjustment.

C. A properly executed “Surveyor’s Certification”, as provided in the ODOT, Survey Division Standard Microstation® Design File, is to be placed on the first Survey Data Sheet. The first Survey Data Sheet in the set, with the Surveyor’s Certification, will need to be plotted as a hardcopy, and then signed and sealed by the Land Surveyor, and submitted with the completed survey. D. Survey Data Sheets shall contain a statement that the requirements of the “Oklahoma Minimum Standards For the Practice of Land Surveying”, as adopted by the State Board of Licensure for Professional Engineers and Land Surveyors, have been met. This statement appears in the ODOT, Survey Division Standard Microstation® Design File, which will be provided to the consultant, and is to be used as a template when compiling the Survey Data Sheets. E. The Primary Deliverables will be submitted in the form of various Microstation® Design Files, according to the ODOT, Survey Division Standards. Additional Coordinate Geometry Files and Digital Terrain Files will be submitted in their proprietary digital formats. Additionally, all coordinates, elevations, and Alignment Definitions used on the survey will be delivered in ASCII (.TXT) format. The Historical Letter and Written Report, and other supporting documents will be submitted in the form of Adobe .PDF Files, on CD, DVD, Flash Drive, or other media, as approved by ODOT, Survey Division. The ODOT, Survey Division will provide its Standard Microstation® Seed Files (prototype drawings), Cell Libraries, and other resource files. The use of these files will help to ensure proper CADD symbology, and conformity with ODOT’s Level Naming Standard.

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F. For each specific project, additional requirements and/or amendments to these Specifications may be provided by the Oklahoma Department of Transportation, Survey Division, and shall be covered by Survey Scope and Special Provisions written at the time of contract negotiation. G. Survey Deliverables, in any format, submitted to the Department of Transportation, Survey Division, for approval shall be accompanied by a letter stating that the survey has been done and the data checked in compliance with: the State of Oklahoma, Department of Transportation, Survey Division: SPECIFICATIONS FOR SURVEYS FOR PRIMARY AND SECONDARY HIGHWAYS (Revised: October, 2010); any applicable survey Special Provisions; generally accepted Professional Land Surveying practices; and the “Oklahoma Minimum Standards For the Practice of Land Surveying” as adopted by the State Board of Licensure for Professional Engineers and Land Surveyors.

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