Statement of Work with Exhibits.pdf

R8 - SOUTHERN REGION

Ouachita and Ozark – St. Francis National Forests

STANDARD CONTRACT SPECIFICATIONS

FOR

CADASTRAL AND ROAD DESIGN

SURVEYS

DESCRIPTION/SPECIFICATION/WORK STATEMENT

SECTION C: SPECIFICATIONS

DIVISION 100 – GENERAL SPECIFICATIONS

C.110 – Scope of Contract

The intent of this contract is to obtain professional surveying services for cadastral boundary location projects and for road design and right-of-way acquisition projects. The contractor shall furnish all labor, materials (except government-furnished materials), transportation, instruments, equipment, materials, tools, operating supplies, and incidentals to complete the work in accordance with these specifications and exhibits.

All work shall be performed under the direct supervision of a person licensed to practice land surveying in the state in which the boundaries are located. All work shall meet or exceed the respective state’s minimum standards for the practice of land surveying. The work may include, but is not limited to:

A. Recovering, restoring, and perpetuating USPLSS controlling corners, and locating and monumentalizing property corners.

B. Locating and marking Forest Service (FS) property and other designated boundary lines.

C. Refurbishing previously marked Forest Service property corners and boundary lines, and obliterating moot or misplaced corner and boundary markings.

D. Establishing Geodetic Coordinates for some corners.

E. Preparing survey plats and reports, suspected encroachment sketches, and state and FS corner documents.

F. Completing road design profile and cross section surveys and right-of-way acquisition surveys.

Award of this contract will not restrict the FS from having surveying services performed by government employees or other contractors during the contract period.

C.120 – Description and Location

The work to be performed is all that necessary to complete either cadastral boundary or road design and right-of-way surveys for the for the Ouachita National Forest located in Arkansas and Oklahoma, or the Ozark - St. Francis National Forest located in Arkansas. Each forest has five project work zones as shown on the vicinity maps in the attached exhibits. Supplemental exhibits for project work sites will be provided with each project task order issued by the Government.

C.130 – Government Furnished Materials

The Government shill furnish the following listed items:

A. Aluminum pipe monuments with aluminum caps and cross pins, and aluminum tablets suitable for placement in concrete or stone.

B. Deep-1 magnetic memorials.

C. Blank corner cards, FS Form 7100-52.

D. Boundary signs (#54-2), Monument signs (#54-9), and Bearing Tree Tags (#54-3) and all other signs designated by the COR.

E. Red Boundary Marking Paint on Ouachita National Forest

F. Aluminum sign posts.

G. Copies of title documents, tract maps, and current corner cards

C.140 – Contractor Furnished Materials

The Contractor shall provide all labor, equipment, research, supplies, and tools necessary to accomplish the work, including the following:

A. Rebar for marking certain property corners.

B. Aluminum nails for attaching signs and tags to trees.

C. Pan-head sheet metal screws for attaching signs and tags to aluminum posts.

D. Red Boundary Marking Paint on Ozark – St. Francis National Forests.

E. Paint brushes for application of oil based boundary paint.

F. Durable detectable control point markers.

C.150 – Definitions

Boundary Line: The record title property boundary between two property corners that may be either a straight line or an irregular line such as along creeks, ridge lines, roads, or trails. This also includes administrative boundaries within the Forest such as wilderness and other congressionally designated area boundaries.

Boundary Line Maintenance: Refurbishing previously marked boundary line corridors to FS standards. Nominal additional surveying may be required to accomplish this level of line maintenance.

Conflict: Any situation encountered during the course of contract work indicating an issue adverse to either USA or adjoining land owner property interests with regard to a corner or boundary being located or refurbished.

Control Survey: A survey that provides relative horizontal position data for coordinate geometry in support of corner and boundary locations.

Corner Maintenance: Refurbishing and perpetuating existing monumentalized corners and accessories. This may involve resetting a monument based upon evidence of the missing or disturbed record monument, and establishing new corner accessories upon evidence of missing previously established record corner accessories.

P-Line: Preliminary road centerline flagged for road design survey.

Survey Tie Line: The straight line distances interconnecting controlling corners and property corners in an efficient network designed to comply with appropriate surveying procedures and standards, and derived from a control survey.

C.160 – Work Progression

The Contractor shall notify the Contracting Officer’s Representative (COR) prior to beginning the field work for each project. When more than one project area is involved, the work shall be substantially complete in each area prior to beginning work in another area unless otherwise directed by the COR.

DIVISION 200 – TECHNICAL SPECIFICATIONS

C.205 – Notification of adjoining property owners

The contractor shall notify all abutting land owners of intent to locate by survey the requested FS boundaries or to perform boundary maintenance as applicable before beginning the fieldwork. A certified letter along with a postage paid return response card is required to be sent to abutting land owners prior to beginning work on any contested boundary line. All landowner contacts are to be documented and furnished to the COR.

C.210 – Surveying

The contractor shall follow proper boundary surveying procedures, credible positioning methods, and reliable observation techniques to insure the requirements specified herein are met. The contractor shall provide quality control evidence sufficient for quality assurance to the COR.

The contractor may utilize geodetic/survey grade Global Navigation Satellite System (GNSS) equipment and methods for control network positioning only in locations having optimum signal reception. Contractor shall comply with the GNSS standards expressed in Exhibit 1. The use of GPS equipment does not relieve the Contractor from the responsibility to search and evaluate all evidence of relevant previous surveys and to tie evidence of apparent encroachment and occupation onto government land.

The contractor shall provide on each survey plat at least one controlling corner and one property corner position tied to the National Spatial Reference System, at a positional tolerance not to exceed 0.50 meters. Positional data, including datum and method of acquisition, shall be noted on each plat.

C.211 – Practices

The respective state’s minimum standards for the practice of land surveying along with these specifications and exhibits shall govern the contractor’s surveying practices. In case of a conflict, notify the COR as soon as practically possible so the issue can be evaluated. Generally, the stricter, higher standard shall apply.

The contractor shall evaluate the record and any physical evidence of all controlling corners prior to use and acceptance as the true corner position. This shall include, but is not limited to, General Land Office (GLO)/Bureau of Land Management (BLM) and Forest Service (FS) records as well as those of any pertinent subsequent surveys. Procurement of survey notes, plats, and record title documents of abutters shall be the responsibility of the contractor.

The position of each corner tied or established by survey shall be determined as part of a closed survey traverse or a point positioning procedure that meets the standards noted above.

Contractor shall mark all control system positioning points with a durable magnetically detectable object so as to be reliably recoverable for quality control, quality assurance, and blunder detection and correction.

The marking, painting, and posting of boundary lines and the placement of corner monuments and marking of corner accessories shall be in accordance with FS standards exhibited.

All bearings shall be referenced to the true (astronomic) meridian with the method of determination noted in the field books and on the plats. All distances shall be expressed as ground distances on the plats.

C.212 – Controlling Corners

All surveys shall be tied to the appropriate controlling corners (GLO/BLM, grant, lot, mineral survey, or tract). If an original controlling corner marker is missing, it shall be replaced as directed by the COR. At least one controlling corner position must be referenced to the National Spatial Reference System using GNSS or traverse method to a positional tolerance not greater that 0.50 meters.

C.213 – Property Corners FS property corners shall be marked using the type of monument provided by the Forest Service.

FS property corners identified as meander or metes and bounds corners shall be marked using contractor provided 1/2” diameter rebar either 24” (standard) or 18” (shortened) in length, depending on ground conditions, with stamped aluminum caps. Driven rebar corner markers shall be placed vertically into the ground in two equal length segments, one above the other, instead of the placement of a magnetic memorial. The caps on all types of monuments shall be stamped to include corner identification, year placed, and surveyor’s license number. Corner identification shall follow the 2009 BLM Manual of Surveying Instructions (BLM Manual) for the United States Public Land Survey System (USPLSS). Non-USPLSS corner identification shall be marked as directed by the COR. All monuments shall be solidly placed so they are not easily pulled from the ground, and shall not extend more than 4” above the natural ground line.

If a corner location falls within a living tree, that tree shall be marked by blazing, scribing, and referenced as directed by the COR.

C.214 – Witness Corners and Reference Monuments

When a corner falls in either an inaccessible or dangerous-to-occupy location, a witness corner monument shall be placed as directed by the COR. When natural corner accessories are impracticable, reference monuments shall be set at the direction of the COR

C.215 – Corner Accessories

Not less than 2 and not more than 3 corner accessories (bearing trees, bearing objects, reference monuments in order of preference) shall be established or refurbished at each corner utilized during this contract, in addition to the detectable memorial beneath the monument, the cairn around the monument, and the signpost beside the monument cairn. Accessories evidence the position of the corner and shall be selected based on their likely longevity. The true bearing to ±½ºand the horizontal distance to ±0.05’ from each monument to accessory shall be observed and recorded.

Each bearing trees shall be ≥ 6 inches diameter at breast height (DBH) and base blazed with scribed letters BT facing the corner. The centerline measuring point of each bearing tree shall be marked by a notch with protruding aluminum nail.

C.220 - Clearing, Blazing, Painting, and Posting of Boundaries

Clearing of brush and blazing shall not be performed on private property without prior permission of the landowner. Under no circumstance shall fruit, shade or ornamental trees, shrubs or hedges in residential or developed areas be blazed, marked or severed.

A. Brushing and Clearing of Boundary Lines.

1. Boundary Lines shall be brushed, limbed and cleared of debris in such a manner as to enable the boundary to be readily recognized. The purpose of the brushing is to allow the painted blazes to be inter-visible. Clearing shall include trees, branches, and brush less than 2” in diameter.

2. All debris from brushing shall be scattered on the Government side of the line.

3. The brushing standards may be adjusted when deemed appropriate by the COR.

B. Blazes and Hacks.

1. Blazes may range in size from approximately 1”x 4” to 6”x 12” depending on the size of each tree within the boundary line corridor. Blazes are made by smoothing the bark to the appropriate length and width, then making a cut at the center of the blaze through the cambium layer into the heartwood that is approximately 1” to 2” in width and half the length of the blaze. Blazes are painted.

2. Hacks are single slightly upward cuts approximately 1 to 2 inches above and below the blazes that penetrate to the heartwood. Hacks are not painted.

C. Boundary Marking and Posting.

1. Line trees shall be blazed on the two sides of the tree the boundary line passes through.

2. Trees within 3 feet on the USA side of the boundary line shall be quarter blazed.

3. Trees within 3 feet on private land shall be face blazed. Blazing and painting on private land are to be in accordance with prior arrangements with property owners.

4. Property Boundary Sign 54-2 shall be placed on quarter blazed trees within 1.5 foot of the boundary.

5. Property Boundary Sign 54-2 shall be spaced along the boundary corridor between 50 to 100 feet from each corner and at intervals of 300 feet ±50 feet along the intervening length.

6. At road crossings, the contractor shall place on one side of the road just beyond the right-of-way or maintenance line a Property Boundary Sign 54-2 and a legibly etched Location Tag 54-6 on either a quarter blazed tree if available or an aluminum sign post.

7. All sign posts along any boundary, except at corner monuments, shall be set within 1 foot of the boundary.

C.222 – Boundary Line and Corner Maintenance

A. All existing boundary corridor blazes shall be scraped clear of lichen, moss, and loose bark, then repainted. No existing blazes shall be re-blazed or re-cut into or through the cambium layer.

B. Trees that previously were not marked but stand within the boundary corridor, are ≥6” in diameter, and enhance boundary corridor visibility shall be appropriately blazed and painted.

C. All damaged, faded or otherwise unreadable signs shall be replaced by the contractor. Any fallen signs shall be replaced.

D. The contractor shall insure that all posts (wood or metal) are secure, plumb, and serviceable.

The contractor shall replace damaged or deteriorated posts.

E. Brush along the boundary line shall be cleared and removed in accordance with section

C.220. Sensitivity to brushing on private property shall be in accordance with section C.220.

F. Brush and debris shall be removed within a 4 foot radius around the monuments.

G. Bark at bearing tree bands and base blazes shall be smoothed before the application of paint.

H. The contractor shall neatly note on the corner card record (FS-7100-52) the condition of the corner monument and accessories at each corner refurbished. The contractor shall report to the COR any missing, defaced, or moved corner monuments after verifying the disturbed condition with recovered record accessory evidence.

C.225 – Misplaced Corner Monuments and Boundary Lines

The discovery of misplaced corner monuments and boundary markings relevant to a contract boundary location or refurbishment project shall be reported immediately to the COR. Separate work orders may be issued for the obliteration of such misplaced items.

C.230 – Cadastral Survey Project Deliverables: Notes, Computations, Control Diagrams, Plats, Reports, Corner Cards, and State Certified Corner Records.

The contractor shall provide project deliverables within two weeks following completion of project field work. Initial project deliverables shall include the field book(s), data collector hardcopy report, survey computations, survey control diagram, and draft plat. All survey project submittals shall be neat and logical to insure legibility and direct interpretation by the COR.

A. Survey notes: The state licensed surveyor in responsible charge shall keep an accurate and complete record of each survey project in a standard hardbound surveying field book in an orderly and legible fashion. All information pertinent to the work shall be recorded including personal contacts with the adjoining landowners and other interested parties. Original project field books will become the property of the Forest Service at the completion of each project.

Immediately following the last page used in a field book, a proper statement of certification shall be made by the licensed surveyor responsible for the work.

B. Electronic Data Collectors: The Contractor may use an electronic data collector system in addition to traditional survey notes. The contractor shall provide a separate hardcopy report for each project to the COR that includes:

1. Original field data prior to any manipulation or adjustments.

2. Explanation of the format used, describing the data on the hardcopy by line and column, and defining all descriptor codes.

3. An unambiguous reference system which indexes the data to the Survey Control Diagram.

4. A proper statement of certification made by the licensed surveyor responsible for the work.

C. Survey Computations: A copy the survey computations for each project shall be furnished to the COR by the contractor. These computations shall include the determination of the accuracy of the control survey network and all other pertinent information.

D. Survey Control Diagram: The contractor shall provide a survey control diagram for each project on 11”x 17” (ledger) size plain paper with landscape orientation. It shall graphically relate to a standard engineering scale all survey control points relevant to the project.

E. Plats: Plats shall be prepared to comply with respective state minimum standards for land surveying and the FS standards reflected in these specifications. Any difference between the two standards shall be resolved in favor of the higher, stricter standard.

1. Plats shall be submitted on 11”x 17” sheets in landscape format.

a) Draft plats shall be on plain paper, shall be stamped or marked DRAFT, and shall be unsealed and unsigned.

b) Final plats shall be on vellum paper and shall be sealed, signed, and dated.

2. Plats shall manifest complete and concise clarity without ambiguity.

3. Each plat shall depict a single USPLSS section at an appropriate engineering scale with broken line ties beyond the section when needed for corner restoration.

4. Each plat shall list corner monument and accessory descriptions using the alpha-numeric shown on the FS Corner Record File Guide, FS-7100-55.

5. Each plat shall contain at a minimum the following information:

a) Caption identifying the plat as representing a retracement, subdivision, and partial monumentalizing of the particular section, township and range, county, and state.

b) North arrow with basis of bearings (astronomic).

c) Bar scale and scale ratio.

d) Legend of symbols used for corners, boundary lines, and pertinent USPLSS section and subdivision lines.

e) Astronomic bearings and ground distances along depicted boundary and boundary controlling USPLSS lines.

f) Sources of title (Name and deed book & page) for USA and abutting land owners.

g) Starting and ending dates of survey field activity.

h) Notes, in lieu of a separate surveyor’s report, stating pertinent, relevant facts of the survey.

i) Sheet Number, if multiple sheets.

j) Name, business address, contact information, and Oklahoma certificate of authorization number for firm of land surveyor in responsible charge.

k) Survey for USDA Forest Service, Ouachita National Forest, Oklahoma Ranger

Districts.

l) Both contract number and task order number.

m) Surveyor’s seal, signature, and date signed.

F. Corner Cards – Form FS-7100-52: One original FS-7100-52 Corner Card shall be completed for each corner monumentalized by the contract surveyor. All information placed on the card shall agree with information in the field books and a resource/mapping grade coordinate shall be reported in latitude/longitude datum format.

The provided, previously completed FS-7100-52 Corner Card shall be annotated to reflect the updated condition of each corner maintained by the contract surveyor.

These 7100-52 cards shall be printed in ink or typed and shall be signed by the surveyor and become property of the Forest Service.

G. State Certified Corner Records: The contractor shall provide a copy of all State Certified

Corner Records completed on each project with the final project plat.

H. Suspected Encroachment Sketches: When suspected encroachments onto USA land are encountered, the contractor shall notify the COR as soon as practically possible. In cases not settled prior to completion of the contract work order, the contractor shall prepare a sketch on 8.5”x11” paper with portrait orientation at an appropriate engineering scale showing at a minimum the following:

1. Caption identifying the plat as representing a suspected encroachment sketch onto the particular forty in a particular section, township and range, county, and state.

2. Date discovered

3. North arrow.

4. Bar scale and scale ratio.

5. Legend of symbols used for corners and boundary line(s) crossed by suspected encroachment.

6. Sources of title (Name and deed book & page) for USA and abutting land owner.

7. Graphic depiction of encroaching structures, objects, or evident activity across boundary(s) onto USA land.

8. Notes, in lieu of a separate surveyor’s report, stating pertinent, relevant facts of the suspected encroachment.

9. Name, business address and contact information of land surveyor submitting sketch.

10. Sketch for USDA Forest Service, Ouachita National Forest, Oklahoma Ranger Districts.

11. Both contract number and task order number.

12. Date sketch submitted.

C.240 – Boundary Conflicts and Suspected Encroachments

The C.O.R. will inform the contractor when issuing a task order of any known conflicts along any of the lines to be surveyed. The contractor shall survey, paint and post the boundary line according to the USA deed. Conflicts either found between USA and abutter deeds or discovered as suspected encroachments onto USA land shall be reported to the COR immediately. In cases where disputed boundaries become impossible to mark because of hostile abutting landowners, such lines and cases shall be reported as soon as practically possible to the COR. Those lines shall be staked on the ground with uncapped ½”rebar and a flagged local picket in lieu of blazing, painting and posts. If the case is settled prior to completion of the contract work order, the contractor will be notified and shall mark the line according to these specifications. Otherwise, the contractor will be paid as if the line had been marked.

C.250 – Road Design and Right-of-Way Surveys

A. Location and Description of the Work

1. Location

The location of each road will be set forth in the Task Order and on the Project Map.

The route to be followed will be shown on the Project Location Map and will be flagged on the ground with colored ribbon. The COR. and/or his/her representative will travel the flagged line with the contractor noting any special design requirements and/or answering any contractual questions.

2. Description

This specification covers the work to be performed to obtain a "P" line survey consisting of a surveyed and staked centerline referenced as described and with/or sufficient cross section data recorded for use in designing and construction staking of the road.

B. Government-Furnished Property.

1. Flagged line Location Flagged line location for all Forest Service Roads contained in the Task Order.

2. Location Map

Topographic map showing the location of all Forest Service Roads contained in this contract.

C. Contractor-Furnished sub-items.

The Contractor shall furnish all labor, equipment, instruments, tools and supplies necessary to perform the required work, including, but not limited to, the following sub-items:

1. Field Books.

Engineering field books approved by the C.O.R. shall be used for recording traverse, profile levels and cross sections for this survey.

2. Stakes, Markers and Reference Points

All hubs and stakes used on the project shall be made of good straight-grained pine or plastic and be of a type manufactured for the purpose. Stakes shall be minimum 1" x 2" x 18". Hubs shall be minimum nominal 2" x 2" x 8". All stakes and hubs shall be firmly anchored in the ground a minimum of 6". All stakes shall be red and legibly marked with a black ink permanent marker. Essentially the same size and type stakes shall be used for each application throughout. See Exhibits 13a-c.

3. Flagging Flagging used shall be fluorescent pink. It shall be used for marking the top of all stakes (except colored plastic stakes) on centerline and reference points.

D. Technical Specifications

1. Clearing

The survey line shall be cleared in such a manner so as to facilitate ease of travel and allow adequate sight distance for measurements. Material shall be cut within 3 inches of ground level when possible.

2. Survey Ties

a. Land Monument Ties. All land survey monuments or physical evidence of potential property corners within 300 ft. of the "P" line and/or indicated on the Vicinity and/or Location Map shall be tied by compass and cloth tape, at the very least, to the "P" line.

b. Ties to Existing Surveys. Where flagged routes start from an existing survey, the new survey will start from an existing station and tie to the next existing station back or forward in order to establish a bearing for the new survey.

c. Ties to Existing Roads. Existing roads, intersecting with the beginning or end of the proposed survey, shall be traversed, profiled and cross sectioned at 25 foot intervals for a distance of 100 feet each direction along the centerline of the existing roads. These traverse lines shall be tied to the appropriate surveys by direction, elevation and similar methods as described in Section C.8-e-special project specifications. See EXHIBIT 12a-g.

E. Survey Methods

1. Field Notes

All survey notes shall be kept in permanently fastened field books. The format shall be as shown in EXHIBIT 12a-g. Lettering shall be at least 0.15 inch high and legible at a distance of 2.5 feet. Errors shall be deleted by lining them out. All field books shall be signed by the surveyor. If errors are found in field notebooks, the C.O.R. will return them to the contractor for corrections at no expense to the Government.

The notes shall contain, but not be limited to, the following information:

Feature Record

Location Control Point Station

Wet areas, rock outcrops, physical Characteristics or changes.

Record station where P-line enters and exits these areas. Make sketches as needed.

Existing Roads or Trails. Record station where P-line crosses and record bearings both up and down the Road or Trail.

2. Horizontal Traverse

a. The survey line shall follow the previously established flagged line and shall not deviate more than 3 feet from the flagged line, except as required to comply with angle and chord restrictions noted below. Each station established is to be considered a point on a free flowing non-circular curve rather than individual PI's.

b. Each drainage encountered along the "P" line shall be stationed and the bearing or azimuth up and down the watercourse shall be recorded in the field book.

c. Horizontal distances shall be used, total length and station number is recorded in the field book and labeled on the stake at each survey point. The station distance shall face the beginning of the road segment. A steel chain, fiberglass tape or approved cloth tape shall be used to measure distances to the nearest foot.

Alignment shall be measured with a compass and shall be recorded in whole degrees as a bearing or N. azimuth. A foresight and backsight shall be taken and recorded at each station and shall not vary more than two degrees. See Exhibit 12a-g.

d. The angle points shall be located so that no deflection angle is greater than 30 degrees with connecting chord lengths of not less than 40 feet, except that for switchbacks and tight gully and ridge crossings the allowable deflection angle may be as large as 45 degrees with connecting chord length of not less than 40 feet or as low as 30 degrees with chord length of not less than 25 feet. The combination of angle and chord length must approximate a radius of 50 feet or more.

e. Stakes shall be used to mark stations on the surveyed line. Stakes shall be marked with plastic flagging within the top two inches.

f. Maximum distance between stations shall be 100 feet unless otherwise specified in the Task Order.

3. Profile

a. The profile of the "P" line shall be measured in percent-of-slope with either an

Abney hand level or clinometer.

b. H.I. (height of instrument) sticks will be required when taking a foresight and backsight between each station. The percent-of-slope measured by the foresight shall agree within + 2% with the backsight measurement. All percent slope measurements shall be recorded to the nearest whole percent. See Exhibit 12a-g.

c. All breaks in topography differing by more than two ft. from a straight line between traverse points shall be stationed.

4. Cross Sections

a. Sections shall be measured in percent-of-slope with a clinometer or Abney level and fiberglass tape, cloth tape, or steel chain. A cross section shall be taken at each station perpendicular to the surveyed line and up and down the centerline of drainages. Angles shall be bisected.

b. The minimum length of the downhill and uphill legs of the cross section shall be

30 feet. If the absolute value of the percent of slope exceeds the absolute value of the slope-distance from centerline, the cross section shall be extended until the absolute value of the slope-distance from centerline is equal to or less than the absolute value of the percent of slope not to exceed 100 feet.

c. Cross sections shall be slope-chained to the nearest foot and slopes shall be measured to the nearest whole percent. All distances are to be recorded from centerline. All points on the cross section, where there is a break in slope, shall be measured and recorded in the field book.

5. Referencing A station on the surveyed line shall be referenced a minimum of once every 10 stations and at the beginning and ending of each survey line. A hub and guard stake shall be established at each station requiring referencing. They shall be referenced by two swing ties made to 10D Aluminum nails driven into live trees, it being preferred that both trees be on the same side of centerline. Each RP shall be flagged. See EXHIBIT 13a.

DIVISION 300 – INSPECTION AND ACCEPTANCE

C.305 – Quality Control

The Contractor has sole responsibility for maintaining quality control for all aspects of work performed under this contract. The contractor will furnish a written plan of quality control procedures to the COR prior to a Notice to Proceed being issued.

C.310 – Inspections

The COR or his designated Inspector may make periodic inspections of each project as work progresses.

C.320 – Acceptance

No final approval of any project will be granted until all items specified are delivered to the COR and are determined by the COR to fulfill all specifications, terms and conditions of this contract.

DIVISION 400 – MEASUREMENT AND PAYMENT

C.410 – Measurement

All measurements for payment purposes will be as follows:

A. Controlling Corner Recovery - per each corner.

B. Survey Tie Line - per calculated mile to two decimal places.

C. Corner Monument Placement - per each corner.

D. Boundary Line Location, Marking, and Posting - per calculated mile to two decimal places.

E. Deliverables – per each survey project.

F. Corner Refurbishment – per each corner.

G. Boundary Refurbishment or Obliteration – per calculated mile to two decimal places.

H. Suspected Encroachment Sketch – per each sketch.

EXHIBIT LISTING

EXHIBIT 1a-f………………..GNSS Cadastral Survey Accuracy Standards

EXHIBIT 2….………………..Example Letter to Adjoining Land Owners

EXHIBIT 3…………………..Forest Service Boundary Management Signs

EXHIBIT 4…………………..Corner Monumentalizing

EXHIBIT 5…………………..Boundary Marking and Posting

EXHIBIT 6…………………..Forest Service Corner Cards System

EXHIBIT 7…………………..Oklahoma Certified Corner Certificate Example

EXHIBIT 8…………………..Survey Plat Example

EXHIBIT 9…………………..Possible Encroachment Sketch Example

EXHIBIT 10a-d……………...Right-of-Way Example Plat

EXHIBIT 11………………….Road Design Abbreviations

EXHIBIT 12a-g………………Road Design Field Book Example Notes

EXHIBIT 13a-c……………….Road Design Stacking Examples

Exhibit 1a

Global Positioning System (GPS)

Standards and Guidelines for Cadastral Surveys

Standards For the

Positional Accuracy of

Cadastral Surveys When Using

Global Navigation Satellite Systems

(GNSS)

February 23, 2009

Cadastral Survey Bureau of Land Management

Department of the Interior

Exhibit 1b

Preface

These Standards for the Positional Accuracy of Cadastral Surveys When Using Global Navigation Satellite Systems (Standards) were developed as an update to the positional standards originally defined in IM 2001-186, Standards and Guidelines for Cadastral Surveys Using Global Positioning System Methods, and are a product of a joint venture between the United States Forest Service and the Bureau of Land Management. The positional standards outlined in this updated document are intended to apply to all boundary surveys conducted under the authority of official Special Instructions or other survey-related instructions issued by the Bureau of Land Management (Cadastral Survey) when Global Navigation Satellite Systems (GNSS) technology is used. In addition to the positional standards, this document also describes how survey accuracies will be defined and computed. These positional accuracy standards are consistent with the current edition of the Manual of Surveying Instructions.

In 2001, when IM 2001-186 was originally issued, the use of Real-Time Kinematic (RTK) global positioning system (GPS) technology while conducting cadastral or other boundary surveys was still in its infancy. IM 2001- 186 was intended to provide instructions on the use of these technologies as well as provide guidance on the accuracy levels necessary to achieve acceptable results comparable to conventional terrestrial surveys. In the past few years, use of GPS/GNSS technological knowledge and methodology have become universal throughout the surveying profession making portions of IM 2001-186 no longer applicable or required.

The positional accuracy standards identified in IM 2001-186 were defined in terms of the 95 percent confidence error “circle” as called for in the Federal Geographic Data Committee’s (FGDC) document FGDC-STD-007.1- 1998, Geospatial Positioning Accuracy Standards Part 1: Reporting Methodology. However, this methodology has not been widely adopted or accepted and, as such, has proven difficult to implement. In this document the positional accuracy standards are defined in terms of the 95 percent confidence error “ellipse,” which can easily be computed using any contemporary GNSS software suite.

Cadastral Surveys are an important part of the National Spatial Data Infrastructure (NSDI), and the accuracy reporting requirements of this document are in accordance with accuracy reporting requirements of the FGDC Geospatial Positioning Accuracy Standards, July 1997. These standards do not require that cadastral surveys be performed to the higher accuracy and methodology required of geodetic control surveys. They are intended to provide sufficient observational, positional, and occupational redundancies to detect blunders and quantitatively demonstrate the stated accuracy of a survey has been achieved to ensure a certain level of acceptability and positional confidence.

The positional standards set forth in this document have undergone both internal and external review and scrutiny. All issues, comments, and concerns have been considered in the preparation of this document.

Exhibit 1c

Standards for Positional Accuracy Using GNSS Technology

The following standards are for Global Navigation Satellite System (GNSS) technology and will be used to define the minimally acceptable levels of positional accuracy required of any Department of the Interior, Bureau of Land Management, official cadastral or administrative boundary survey.

Local Accuracy Standards1

Semi-major axis 95 percent error ellipse Application

Less than 0.025 (m) Cadastral Project Control

Less than 0.050 (m) Cadastral Corner Measurements

Network Accuracy Standards2

Semi-major axis 95 percent error ellipse Application

Less than 0.050 (m) Cadastral Project Control Less than 0.100 (m) Cadastral Corner Measurements

1 See Appendix 1, items 3 and 4.

2 See Appendix 1, items 5 and 6.

Exhibit 1d

Appendix 1

Supporting Information

1. The standard is based on the magnitude of the semi-major axis of the 95 percent confidence level error ellipse.

2. A least squares adjustment or other multiple baseline data analysis should be used to verify that the required level of positional accuracy has been achieved.

3. The local accuracy of a control point established as part of a static GNSS project control network can be determined by performing a minimally constrained least squares analysis of the network and ensuring the magnitude of the semi-major axis of the 95 percent confidence level error ellipse is less than or equal to the values in Table 1.

4. The local accuracy of a cadastral corner measurement can be determined by performing a minimally constrained least squares analysis of the network and ensuring the magnitude of the semi-major axis of the 95 percent confidence level error ellipse is less than or equal to the values in Table 1.

5. The network accuracy of a control point established as part of a static GNSS project control network can be determined by performing a fully constrained least squares analysis of the network and ensuring the magnitude of the semi-major axis of the 95 percent confidence level error ellipse is less than or equal to the values in Table 2.

6. The network accuracy of a cadastral corner measurement point established by real time kinematic, fast static, or kinematic methods which meet the manufacturer’s specifications may be determined by performing a fully constrained least squares analysis of the network and ensuring the magnitude of the semi-major axis of the 95 percent confidence level error ellipse is less than or equal to the values in Table 2.

7. The National Geodetic Survey (NGS) program “OPUS – Static” (http://www.ngs.noaa.gov/OPUS/) returns the maximum peak-to peak separation for each component of the computed position. The maximum peak-to-peak separation of the computed position will be used to estimate the semi-major axis of the 95 percent confidence error ellipse for network accuracy determination for these standards.

8. The NGS program “OPUS – RS” (http://www.ngs.noaa.gov/OPUS/) returns the standard deviation for each component of the computed position. Two times the largest position component standard deviation will be used to estimate the semi-major axis of the 95 percent confidence error ellipse for network accuracy determination for these standards.

http://www.ngs.noaa.gov/OPUS/ http://www.ngs.noaa.gov/OPUS/

Exhibit 1e

Appendix 2

Glossary

Cadastral Corner Measurements - The measurements used to define the location of Public Land Survey System (PLSS) corners and boundaries. Cadastral Corner Measurements are based on the Cadastral Project Control coordinates or direct ties to the National Spatial Reference System (NSRS).

Cadastral Project Control - A network or series of the GPS/GNSS of control points that are tied to the NSRS, which is created to control all subsequent GPS cadastral corner measurements. The Cadastral Project Control is adjusted independently of other cadastral measurements

Fully Constrained Least Squares Adjustment - For the purpose of this document, a least squares adjustment performed by holding the horizontal coordinates of all control points and a minimum of one vertical control coordinate fixed and allowing all other points to be adjusted.

Local Accuracy - A value that represents the uncertainty at the 95 percent confidence level in the coordinates of a measured point relative to the coordinates of other directly connected and adjacent points in the survey.

Minimally Constrained Least Squares Adjustment - For the purpose of this document, a least squares adjustment performed by holding the coordinates of one control point fixed and allowing all other points to be adjusted.

Network Accuracy - A value that represents the uncertainty in the coordinates of a measured point at the 95 percent confidence level relative to the NSRS as determined in the survey.

OPUS-RS - An internet-located positioning program developed and supported by the NGS. This program allows the user to submit 15 minutes to 2 hours of GPS data to NGS. NGS will then compute and return, via email, the calculated coordinates of the position.

OPUS-Static - An internet-located positioning program developed and supported by the NGS. This program allows the user to submit a minimum of 2 hours of GPS data to NGS. NGS will then compute and return, via email, the calculated coordinates of the position.

Exhibit 1f

Appendix 3

CERTIFICATE OF APPROVAL AND ACCEPTANCE

These Standards for the Positional Accuracy of Cadastral Surveys When Using Global Navigation Satellite Systems have been properly vetted and, THEREFORE, are considered approved for use within the Bureau of Land Management when establishing or reestablishing boundaries, control networks, or other segregation lines necessary to meet realty needs.

Donald A. Buhler Surveyor General Department of the Interior Bureau of Land Management

EXAMPLE LETTER TO ADJOINERS

SAMP.LE SURVEYS, INC.

Hovtn>■r IS, l98J

E. F, Black 1407 til!T'Pton Road Seo lflela, CO 80701

Oe:e.r /1r. Blcclt:

REGISTERED LANO SURVEYORS

0..r f1r11 hu tl11n contractta by tnt USDA, forut. Sen lea to surv•y lf'IO 111111"1( thl bounaartes .-2Ja1ri lllg your pl"Op1rty. We pl 111 to b1 fn YOLIT' 1rt11 audng the ronth af O.c1iri>1r- aofng thh work.

There •rt prov1s1ons In the contra,t to 1111,rk your stde or tht line, 1f you ll«sir"'I, The Forut Servfca p,..rars to mark botn s1dH of t:he boun1Ury line, s� Forest users c.in ■n11y s11 t111 11111ts of Nat1ona1 Forut \and.

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Sh0t.1la th■ nHd 1rhe1 w Hk your pu,nisslon to erou your land to 911n access ta the proJ.::t.

P1us■ t1 l t out th■ ll'lclostd card concern Ing pr0Je,c: access anti bounc11r)' lint 111arklng1 ll"Q n:lum th■ ca� ta our afflu 1n tht tnclosed self•1de1r1ue, ::;�:: pt!.:'w:"� ln

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Thant ywJU for your cooper1tton.

Sinc■rely, THOIIAS WASHINGTOII

Enclosurw

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EXAMPLE REPLY CARD

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SAMPLI! SURVEYS, INC.

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Exhibit 2

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Cadastral Survey Contract Exhibits.pdf