Part II – Design Standards
Chapter 08 – Surveys
Requirements for coordinating, documenting, performing, verifying, and preserving survey work, control points, construction lines and grades, and monument data for CSU projects.
Revised – 2025.12.23
800 – Surveys
800.1 – General Requirements
A. General:
1. This Chapter covers the Project Team procedures and accuracy requirements for survey services for site and/or Project layout and field-measurement quantities determined by surveys.
2. Prior to beginning any field survey Work, the Project Team shall meet with the Project Representative to coordinate survey and reporting requirements.
B. Notice of Survey:
1. Before commencing any site and/or Project layout and surveys, the Project Team shall give the Project Representative 48 hours’ written advance notice so the Project Representative and/or GIS Services may witness such Work.
a. Refer to Part IV – Regulatory Requirements for utility-locate requirements.
C. Field Measurements:
1. The Consultant is responsible for performing Field Measurements to verify existing conditions unless this activity is specifically excluded from the Consultant’s Scope of Work by the Project Representative.
D. Field Measurements typically require, but are not limited to, the following:
1. As-Built Measurements of Vertical Work:
a. Provide field verification of measurements and elevations of existing facilities to verify and/or create accurate As-Built Drawings to be used for Project base data.
b. These measurements may be completed using modern technological equipment available at the time to acquire the most accurate survey data.
2. Field Verification of Horizontal Work:
a. As-built measurements for items that will be hidden or visible—including civil, mechanical, electrical, control Work, and utilities placed in concrete, earth, or behind walls—shall be made by and under the direction of a Colorado-licensed surveyor while the Work is exposed and submitted to the Project Representative.
b. Unless noted otherwise, measurements shall show the final location within ±1 inch, or as close as reasonably possible when Project or site safety conditions limit access, based on NAD83 Colorado State Plane – North Zone – US Foot and NGVD 29 elevation.
c. Items located within 5 feet of a building shall be referenced to the edge of the building foundation, building column lines, and finished-floor elevations, and shall be noted accordingly.
d. Special attention shall be given to items requiring service, sensors, moving parts, access points, junctions, elevation changes, and directional changes.
e. Survey notes shall be supplied to the Project Representative before the Work is covered, or the Work shall be considered defective.
3. Data Format:
a. All survey data shall be provided in digital form using the current version of AutoCAD and as hard copies to the Project Representative, GIS Services contact, Facilities Management Survey Technician, and FM Utility personnel.
b. The Consultant shall contact the Project Representative for a current list of these individuals.
c. Work shall be considered incomplete if the data is not provided to all required personnel.
800.2 – Site Work Surveys
A. Control Points:
1. The Project Team shall locate at the Project/Work site all control points shown on the Construction Drawings by coordinates and/or elevation.
2. The Project Team shall accurately survey control information to the points of application to ensure that all elements of the Work are correctly located.
B. Reference Location:
1. Requests by the Project Team to relocate survey reference or control points shall be submitted to the Project Representative at least 96 hours before the point will be disturbed.
2. The Project Team shall replace or relocate, at no charge to the Project, any survey reference point disturbed by the Project Team or others within three normal working days after the request is approved.
3. Any Work begun before reference points have been provided may be rejected.
4. If original reference points are obliterated or dislodged by operations controlled by the Project Team, the Project Team shall replace them at no charge to the Project for the re-survey.
800.3 – Project-Specific Control Markers
A. General:
1. One or more project-specific land-survey control markers shall be provided throughout the Project site. If these control markers, monuments, or benchmarks must be moved to accommodate the Project Team’s Work, the Project Representative shall receive written notice at least 96 hours before they are moved.
a. The Project Team shall perform this Work at no expense to the Project.
2. If the Project Team destroys or obliterates a monument or benchmark before contacting the Project Representative, the Project Team shall immediately notify the Project Representative in writing and shall pay all labor, material, and equipment costs assessed by the Project Representative for replacement.
800.4 – Permanent Control Markers
A. General:
1. A system of monuments, benchmarks, reference points, and control points exists throughout the Project site.
a. The Project Team shall protect and preserve all survey references within the Colorado State University Grid Control System.
2. Coordinates shown on the Drawings are based on the CSU Coordinate System unless noted otherwise.
3. If any element of the University Land Survey Control System must be moved to accommodate the Project Team’s Work, the Project Representative shall receive written notice at least 96 hours before the reference or coordinate point is moved.
B. Damaged or Destroyed Points:
1. Report damaged or destroyed reference points, CSU grid-coordinate points, and benchmarks to the Project Representative, GIS Services, and the FM Survey Technician.
2. The Project Representative shall reestablish damaged, moved, altered, or destroyed reference benchmarks and coordinate points.
3. When reference points, coordinate points, or benchmarks are damaged, moved, altered, or destroyed by the Project Team, the Project Team shall bear the Project’s cost of reestablishing those points.
4. The Project Representative shall not be responsible for increased costs or delays related to reference points, CSU grid-control points, or benchmarks damaged, moved, altered, or destroyed by the Project Team, its subcontractors, suppliers, agents, employees, or other Project Teams working on the site.
C. Errors:
1. Promptly report alleged errors in reference points, CSU grid-control points, or benchmarks to the Project Representative, GIS Services Technician, and FM Survey Technician.
2. Discontinue use of any reference point, CSU grid-control point, or benchmark alleged to be in error until its accuracy is verified or as otherwise directed.
3. Claims for extra compensation for alteration or reconstruction allegedly resulting from errors in reference points, CSU grid points, or benchmarks shall not be allowed unless the original points still exist or substantiating evidence proves the error, and the Project Team has reported the error as specified.
D. The following limitations and additional information apply to reference points, CSU grid-control points, and benchmarks:
1. Use of Control Monuments for construction surveying other than those shown on the Construction Drawings or furnished by or accepted by the Project Representative is prohibited. Use of other monuments is at the Project Team’s sole risk and is not recommended.
2. Elevations for Main Campus and surrounding areas are based on mean sea-level datum from NOAA-NGS benchmark “CSU2,” elevation 5271.518 feet, and shall be verified by the Project Team before surveying.
3. The CSU benchmark and coordinate-point data listed on the Construction Drawings or in the specifications are the only approved coordinate points and benchmarks for construction surveying.
4. The Grid System basis of bearing is NGS control points georeferenced to the North American Datum of 1983, Colorado State Plane, North Zone, US Foot Datum.
800.5 – Construction Lines and Grades
A. Reference Points:
1. CSU Reference Drawings with benchmarks shall be provided by CSU for reference only.
2. Other control points and benchmarks may be provided to the Project Team at the discretion of the Project Representative.
B. Preservation of Points:
1. The Project Team shall carefully preserve such points and shall be held responsible for them.
a. If it becomes necessary to remove or disturb a reference point or benchmark, the Project Team shall notify the Project Representative before doing so.
2. If, in the Project Representative’s opinion, stakes, monuments, marks, or points are carelessly or willfully disturbed by the Project Team, the replacement cost shall be charged to the Project Team and deducted from payment for the Work.
C. Project Team Surveys:
1. The Project Team shall perform surveys and layouts as necessary to delineate the Work.
a. The Project Team shall perform the surveys required for proper execution of the Work.
2. As part of these surveys, the Project Team shall furnish, establish, and maintain in good order the survey-control points required to complete its Work, subject to the Project Representative’s acceptance of their location, sufficiency, and adequacy.
a. Acceptance by the Project Representative does not relieve the Project Team of responsibility for the accuracy of its survey Work.
3. The Project Team shall be responsible for lines, grades, or measurements that do not comply with specified or proper tolerances, and for resulting defects in the Work.
4. The Project Team shall conduct re-surveys or check surveys to correct errors identified through review of field notebooks.
D. Quality Assurance:
1. The Project Representative has the right to check surveys and layouts made by the Project Team before accepting the Work.
2. The Project Team shall provide at least 48 hours’ advance notice to allow such checking before placing any Work.
3. The Project Team shall provide assistance required for checking when requested.
4. The Project Representative may identify errors or omissions in lines or grades, but failure to do so does not create a right or claim for the Project Team or relieve it of its obligations under the Agreement.
E. Quality Control:
1. The Project Team shall furnish skilled labor, instrument platforms, ladders, and other temporary structures necessary to establish and maintain survey points and lines.
2. Survey instruments and equipment shall be accurate, suitable for the required surveys, maintained in proper condition and adjustment, and used in accordance with recognized professional standards.
3. Surveys shall be performed under the direct supervision of a Colorado-licensed surveyor.
F. Field Notes:
1. The Project Team shall record surveys in field notebooks.
2. Copies of original record pages shall be furnished to the Project Representative at intervals required by the Project Representative.
3. Each field notebook shall be furnished to the Project Representative when filled or completed.
4. Field notes shall follow current approved surveying theory and practices and reflect the highest practicable level of accuracy and professionalism.
5. All electronic data collection, field notes, and AutoCAD survey files shall be provided to the Project Representative, GIS Services Technician, and FM Survey Technician.
a. Data shall be provided in Microsoft Word or a similar format and may supplement field books.
6. The Project Team shall use the same note-taking method throughout the Agreement duration.
7. If the Project Representative identifies errors in the field notes, the notes shall be returned to the Project Team for correction and resubmission.
a. This review does not relieve the Project Team of responsibility for maintaining accurate survey data.
800.6 – Larimer County Control Monuments
A. General:
1. Verify control-monument values with CSU Facilities GIS Services before beginning the survey.
Scroll horizontally to view the complete table on smaller screens.
| STATION DESIGNATION |
NAD 83/92 |
NAD 83/92 |
ORTHO |
ELLIPS. |
ORDER |
|---|---|---|---|---|---|
|
30508 |
40º24’54.24463″ N |
105º15’01.72114″ W |
1691.16 |
1676.25 |
B |
|
31503 |
40º25’55.16667″ N |
105º20’23.85075″ W |
1878.353 |
1864.436 |
C1 |
|
32908 |
40º45’54.43897″ N | 105º29’12.31258″ W |
2411.084 |
2398.675 |
C1 |
| 36 RMB | 40º52’12.77927″ N | 105º01’09.98237″ W |
1736.318 |
1720.711 |
C1 |
| 56 RMB | 40º46’20.04060″ N | 105º20’26.89750″ W |
1925.279 |
1911.800 |
C1 |
| “A” | 40º33’40.24373″ N | 105º09’05.97681″ W |
1757.646 |
1742.346 |
C1 |
| A 409 | 40º29’30.80498″ N | 105º04’37.72739″ W |
1536.021 |
1519.930 |
C1 |
| A 77 | 40º59’52.39735″ N | 105º24’43.22543″ W |
2298.816 |
2286.41 |
B |
| Allen | 40º16’41.59290″ N |
105º21’40.20722″ W |
2021.76 |
2007.47 |
B |
| Azari | 40º29’38.87965″ N |
105º06’57.95290″ W |
1566.014 |
1550.221 |
C1 |
| B 135 | 40º42’03.75660″ N |
105º33’45.56353″ W |
2164.74 |
2152.64 |
B |
| B 137 Reset | 40º43’11.40012″ N |
105º10’19.94409″ W |
1671.87 |
1656.98 |
B |
| B 357 | 40º40’07.24660″ N |
105º04’09.71538″ W |
1583.23 |
1567.52 |
B |
| Bartling | 40º19’42.26304″ N |
105º34’40.59657″ W |
2516.596 |
2504.402 |
C1 |
| Biggi | 40º44’49.29418″ N | 105º22’14.94338″ W |
2053.22 |
2039.81 |
B |
| Blue | 40º17’05.93092″ N | 105º16’50.64647″ W |
1742.512 |
1727.512 |
C1 |
| BNSF | 40º25’48.38728″ N | 105º04’54.98186″ W |
1531.01 |
1514.75 |
B |
| Bradshaw | 40º35’04.09139′ N | 105º02’08.32027″ W |
1500.4 |
1484.12 |
B |
| Bud | 40º37’22.72303″ N | 105º00’06.36473″ W |
1529.39 |
1513.16 |
B |
| C 409 | 40º33’10.07976″ N | 105º04’46.93017″ W |
1532.569 |
1516.664 |
C1 |
| Campton | 40º25’19.46764″ N | 105º27’53.79807″ W |
2440.161 |
2427.284 |
C1 |
| Clarke (DESTROYED) | 40º50’20.44402″ N | 105º18’58.63021″ W |
2014.393 |
2000.823 |
C1 |
| Collinson Az Mk | 40º22’23.84547″ N | 105º29’29.77941″ W |
2285.49 |
2272.62 |
B |
| Comstock | 40º51’00.20677″ N | 104º56’45.84399″ W |
1785.419 |
1769.341 |
C1 |
| Cook | 40º18’18.15752″ N | 105º03’35.96292″ W |
1520.340 |
1503.603 |
C1 |
| CSU (DESTROYED) | 40º34’33.45418″ N | 105º05’08.66359″ W |
1525.73 |
1509.89 |
B |
| CSU 2 | 40º34’32.69809″ N | 105º05’08.83804″ W |
1525.926 |
1510.141 |
B |
| Dailey | 40º41’05.74350″ N | 105º14’14.85657″ W |
1622.16 |
1607.73 |
B |
| Demosthenes | 40º24’07.53685″ N | 105º25’05.55820″ W |
2135.36 |
2121.96 |
B |
| Disney | 40º20’37.64477″ N | 105º31’48.04537″ W |
2454.547 |
2442.024 |
C1 |
| Duvall | 40º37’59.13607″ N | 105º11’53.63851″ W |
1644.521 |
1629.792 |
C1 |
| E 137 Reset | 40º47’19.36020″ N | 105º11’29.06979″ W |
1838.80 |
1824.14 |
B |
| E 20 | 40º23’09.47418″ N | 105º11’32.50084″ W |
1592.792 |
1577.280 |
C1 |
| E 27 | 40º17’20.01111″ N | 105º11’50.33028″ W |
1664.922 |
1649.183 |
C1 |
| E 357 | 40º33’58.65840″ N | 105º02’25.75188″ W |
1499.452 |
1483.308 |
C1 |
| E 53 | 40º46’18.78304″ N | 105º08’00.68772″ W |
1654.983 |
1639.918 |
C1 |
| E 7 | 40º25’05.46075″ N | 105º11’18.66272″ W |
1573.14 |
1557.67 |
B |
| Farren | 40º18’16.41176″ N | 105º09’00.60406″ W |
1573.446 |
1557.355 |
C1 |
| FC 1394 | 40º31’24.85370″ N | 105º01’12.08510″ W |
1503.303 |
1486.909 |
C1 |
| FC 2694 | 40º30’06.92556″ N | 105º03’29.34852″ W |
1502.186 |
1485.987 |
C1 |
| FC 923 | 40º36’07.30657″ N | 105º01’45.08342″ W |
1520.592 |
1504.470 |
C1 |
| Feather RM 1 | 40º47’22.39411″ N | 105º34’22.52649″ W |
2515.60 |
2503.62 |
B |
| Finley | 40º35’54.68774″ N | 105º10’26.71076″ W |
1660.804 |
1645.787 |
C1 |
| FNL C | 40º26’55.68980″ N | 105º00’31.30126″ W |
1525.8 |
1509.18 |
B |
| G 308 | 40º54’57.28480″ N | 104º59’57.22037″ W |
1817.587 |
1802.002 |
C1 |
| G 402 | 40º23’34.42310″ N | 105º04’34.34159″ W |
1515.464 |
1499.08 |
B |
| Goering | 40º41’01.37955″ N | 105º07’58.11480″ W |
1569.984 |
1554.772 |
C1 |
| Greer | 40º50’14.64088″ N | 105º09’48.23512″ W |
1814.42 |
1799.69 |
B |
| Guerrero | 40º32’22.62735″ N | 104º59’45.09076″ W |
1492.8 |
1476.32 |
B |
| Harding | 40º37’09.73323″ N | 105º49’08.45011″ W |
2640.90 |
2629.66 |
B |
| HAVEN 2014 | 40º27’4.91168″ N | 105º27′ 2.60862″ W |
2211.188 |
2198.348 |
C1 |
| Heiden | 40º47’54.46886″ N | 105º04’33.61801″ W |
1684.595 |
1669.169 |
C1 |
| Hipp | 40º41’47.88019″ N | 105º26’40.04767″ W |
1990.68 |
1977.79 |
B |
| Hoff | 40º31’55.59036″ N | 105º08’27.58732″ W |
1666.241 |
1650.763 |
C1 |
| I–25 MP 281.96 | 40º45’45.66118″ N | 104º59’31.87692″ W |
1646.23 |
1630.26 |
B |
| Inghram | 40º57’28.13567″ N | 104º58’35.06740″ W |
1869.190 |
1853.596 |
C1 |
| Johnson | 40º21’33.11482″ N | 104º58’57.64299″ W |
1524.1 |
1507.11 |
B |
| K 324 | 40º53’02.21695″ N | 105º55’53.01503″ W |
2449.87 |
2438.78 |
B |
| Keister | 40º29’14.53682″ N | 105º12’21.43185″ W |
1641.643 |
1626.576 |
C1 |
| Kerr | 40º29’00.98063″ N | 105º01’39.84114″ W |
1490.410 |
1473.955 |
C1 |
| Kirkpatrick | 40º19’20.65116″ N | 105º24’54.40357″ W |
2298.55 |
2284.93 |
B |
| L 135 | 40º41’01.80005″ N | 105º22’48.48352″ W |
1833.70 |
1820.35 |
B |
| L 410 | 40º17’26.17357″ N | 105º06’11.16976″ W |
1542.566 |
1526.09 |
B |
| Lancaster | 40º33’51.05869″ N | 105º13’41.01061″ W |
1806.305 |
1791.699 |
C1 |
| Lily Lake | 40º18’22.99905″ N | 105º32’16.95183″ W |
2724.02 |
2711.38 |
B |
| M 356 | 40º42’41.01036″ N | 104º56’29.71381″ W |
1621.998 |
1605.653 |
C1 |
| Macfarlane | 40º21’35.05112″ N | 105º16’14.57157″ W |
2067.474 |
2052.624 |
C1 |
| Miller | 40º15’42.08708″ N | 105º03’30.97896″ W |
1522.420 |
1505.571 |
C1 |
| Muscott | 40º37’18.68997″ N | 105º08’22.83527″ W |
1541.966 |
1526.698 |
C1 |
| Myhre | 40º33’51.04850″ N | 105º18’37.43705″ W |
1903.57 |
1889.60 |
B |
| N 311 | 40º53’05.55921″ N | 105º16’50.63011″ W |
1990.999 |
1977.33 |
B |
| Nelson | 40º40’06.68405″ N | 105º01’11.99022″ W |
1571.062 |
1555.041 |
C1 |
| Olson | 40º37’11.85668″ N | 105º21’04.27031″ W |
2243.985 |
2230.550 |
C1 |
| P 135 | 40º41’12.92478″ N | 105º18’27.64116″ W |
1731.26 |
1717.38 |
B |
| P 137 Reset | 40º57’11.96641″ N | 105º20’58.13751″ W |
2146.08 |
2133.05 |
B |
| Purdy | 40º25’55.15608″ N | 105º20’24.67100″ W |
1878.25 |
1864.23 |
B |
| R 308 | 40º51’23.05409″ N | 105º04’51.63595″ W |
1728.03 |
1712.80 |
B |
| Ragsdale | 40º52’53.17608″ N | 105º08’48.31283″ W |
1799.181 |
1784.509 |
C1 |
| Railroad ET | 40º48’54.99784″ N | 104º58’32.69280″ W |
1700.93 |
1684.97 |
B |
| Ranger | 40º34’51.65621″ N | 105º28’06.39119″ W |
2522.95 |
2510.31 |
B |
| Roach | 40º59’10.52745″ N | 106º08’23.59741″ W |
2699.75 |
2688.84 |
B |
| Rodenberger | 40º39’56.35752″ N | 104º57’46.33612″ W |
1571.052 |
1554.716 |
C1 |
| RP 65 | 40º21’00.26195″ N | 105º12’31.22488″ W |
1765.309 |
1749.850 |
C1 |
| Shockley | 40º31’21.72421″ N | 105º15’29.10248″ W |
1731.156 |
1716.691 |
C1 |
| Smith 97 | 40º45’16.26813″ N | 105º04’38.68448″ W |
1641.29 |
1625.79 |
B |
| Snell | 40º43’32.92509″ N | 105º08’01.20866″ W |
1615.453 |
1600.319 |
C1 |
| Spencer | 40º20’58.11410″ N | 105º09’15.07822″ W |
1571.815 |
1555.884 |
C1 |
| Sumpter | 40º38’32.52593″ N | 105º17’37.13268″ W |
2124.695 |
2110.808 |
C1 |
| Thompson | 40º15’40.94129″ N | 105º07’57.11917″ W |
1556.084 |
1539.733 |
C1 |
| Timm | 40º19’10.45282″ N | 105º12’33.26228″ W |
1741.860 |
1726.318 |
C1 |
| Touslee | 40º42’14.52878″ N | 104º59’53.54639″ W |
1591.73 |
1575.68 |
B |
| U 134 | 40º40’55.99031″ N | 105º46’23.02366″ W |
2390.004 |
2378.93 |
B |
| U 287 MP 369.85 | 40º49’38.81389″ N | 105º14’37.19769″ W |
1816.19 |
1802.00 |
B |
| U 311 | 40º56’45.11231″ N | 105º15’03.96273″ W |
2218.153 |
2204.538 |
C1 |
| U 356 | 40º42’41.02859″ N | 105º04’04.12339″ W |
1610.809 |
1595.179 |
C1 |
| V 401 | 40º36’25.60489″ N | 105º04’32.77631″ W |
1517.239 |
1501.447 |
C1 |
| Wall I | 40º33’36.67837″ N | 105º52’17.91215″ W |
3043.55 |
3032.25 |
B |
| Warwick | 40º39’31.00493″ N | 105º09’10.62370″ W |
1600.39 |
1585.25 |
B |
| X 134 | 40º41’46.57669″ N | 105º41’02.86245″ W |
2326.56 |
2315.09 |
B |
| X 402 | 40º34’00.21576″ N | 105º00’53.87659″ W |
1490.739 |
1474.433 |
C1 |
| Y 401 |
40º30’41.00149″ N |
105º04’37.23253″ W |
1515.457 |
1499.42 |
B |
End of Chapter