Dallas Water Utilities Benchmarks April, 2014 Purpose To communicate changes and additions to the Dallas Water Utilities Benchmark publication as part of the Dallas Water Utilities Elevation Control Network maintenance program. The City of Dallas has recognized that having a consistent elevation datum within the City provides necessary structure for any construction efforts. Additionally, having a freely available set of Benchmarks can reduce construction costs not only for City sponsored projects but for privately sponsored projects, as well. Caveats Neither the City of Dallas, any Department operated by the City of Dallas, City of Dallas employees, nor City of Dallas Contractors, assume any liability for the use or reliance on any data presented herein. In all cases, it is the responsibility of the user to verify the correctness or usefulness of this data for any purposes whatsoever. In Case of Errors: It is possible that errors exist in this document. Errors can include poorly written location descriptions, elevations that may be incorrect, coordinates or Latitudes and Longitudes that are in error, not found benchmarks, or anything else that would render a benchmark questionable. We encourage the users of this data to provide feedback on the information herein provided, and if errors are found, please forward your findings to: Anel Rodríguez Project Coordinator Dallas Water Utilities 2121 Main Street, Suite 401 Dallas, Texas 75201 (214) 948-4614 [email protected] Data Presentation The data presented in this document is as follows: cnt This column is a simple count and is issued by the database. The count for an individual Benchmark is likely to change with each version of the Dallas Water Utilities Benchmark List. It is on this report to facilitate communication between parties, so they can be sure that are discussing the same information. Final-Name This is the permanent and unique name for a Benchmark. This name is assigned by the most approximate MAPSCO™ grid. This name is not anticipated to change over time; however, there are no guarantees that a Benchmark’s name will not change. Also consider that a benchmark can be removed if it is not found or destroyed. * Denotes Benchmarks based on NAVD 88. There are only 83 BM based on this datum Location The location column is a listing of cross streets. This is a description of a street intersection on which, or near which, the Benchmark is located. In some cases, an actual address is given. In these cases, the benchmark will be located near that address. GPS-Date This is the date the benchmark was verified as still existing. Date Set This is the date the benchmark was first established. Description The Description is a written description of what the Benchmark looks like. State Plane The Northing ordinate of the State Plane Coordinate. This was developed through GPS Northing Software based on NAD83. State Plane The Easting ordinate of the State Plane Coordinate. This was developed through GPS Easting Software based on NAD83. Elevation This is the Elevation of the Benchmark, based on NGVD29, unless denoted with an (*). See description above. Latitude The Latitude is the latitude of the Benchmark as computers by the GPS software based on NAD83. Notice that the Latitude is always presented with an “N” as the last digit. Longitude The Longitude is the latitude of the Benchmark as computers by the GPS software based on NAD83. Notice that the Longitude is always presented with a “W” as the last digit. Preface to the April, 2014 Version of the Dallas Water Utilities Benchmarks This list of Dallas Water Utilities Benchmarks has been electronically available for about two years. During this time, there have been several versions submitted. The Dallas Water Utilities Automation and Integration Division continues to provide maintenance to existing benchmarks. Additionally, it has been reviewing the data for accuracy and correctness. The result of this effort is a new version of the Dallas Water Utilities Benchmarks. The main purpose of this update is to communicate that all benchmark descriptions are now available. Many benchmarks were added or re-instated. Also, we have eliminated the benchmarks that were found to be out of tolerance, lost due to construction or obliterated and placed as not reliable. This resulted on a net gain of more than 30 benchmarks in comparison with the previous edition. The April, 2014 listing of the Dallas Water Utilities Benchmarks has had numerous descriptions “cleaned” up and efforts were made to be sure the locations shown are shown on the correct Mapsco page and grid. During next year, we expect to provide an updated version with the addition of benchmarks re-instated or benchmarks that were existent but not recovered in past efforts. Also a possibility is the removal of benchmarks not found, destroyed or out of tolerance. Should you, as a user of this data find an error in a location, description, or elevation, please let us know and we will do our best to correct or eliminate the Benchmark in question. We encourage the participation of the public and feedback is always appreciated. Dallas Water Utilities Benchmarks Last Visit State Plane Northing State Plane Easting Elevation cnt Final-Name: Location Date Set Description Latitude Longitude 1. 02-T-1 Elm Fork Treatment Plant 6/5/2007 A Hex Bolt is set in concrete at Northwest of Gate 7,039,984.553 2,454,106.707 460.020 Well and East of Northeast corner of Pump Building. 1/1/1951 32° 58' 16.86317" N 96° 54' 59.14719" W 2. 02-T-3 Missouri, Kansas & Texas 6/5/2007 A square is cut on the Northwest corner of a 7,038,888.643 2,454,059.882 458.310 Railroad (M.K.&T.) - Whitlock concrete Headwall of Twin 30" concrete Culvert Road Under Missouri, Kansas & Texas Railroad (M.K.&T.) and Approximately 60' South of Whitlock Lane. 32° 58' 6.02709" N 96° 54' 59.89072" W 3. 03-D-1 Marsh Lane - Gainsborough 5/22/2007 A square is cut on North end of a concrete Headwall 7,052,895.208 2,472,114.712 600.080 on the East side of Marsh Lane and 100' North of 8/6/1985 33° 0' 21.86549" N 96° 51' 25.40319" W Gainsborough. 4. 03-G-1 Kelly Springfield Road - 6/19/2007 A square is cut on top of a concrete curb at the 7,049,519.700 2,469,292.106 556.450 Frankford Road Midpoint at Southwest corner of the Intersection. 5/5/1986 32° 59' 48.90378" N 96° 51' 59.16372" W 5. 03-G-2 Kelly Boulevard - Kelly Creek 11/16/2012 A square is cut on top of a concrete Headwall of a 7,050,224.272 2,469,808.033 558.140 Twin Box Culvert on the Northwest side of Kelly 9/30/1985 32° 59' 55.79539" N 96° 51' 52.97735" W Boulevard at Kelly Creek. 6. 03-G-3 Frankford Rd - Louisiana -San 6/5/2007 Square Cut in Center of Storm Sewer Inlet on The 7,049,531.012 2,467,568.315 544.040 Francisco R/R North Side of Frankford Rd. and 200' East of Louisiana & San Francisco Railroad 32° 59' 49.28047" N 96° 52' 19.40101" W 7. 03-G-6 Appleridge Road - Golden Grove 5/30/2013 A square is cut on top of a concrete curb on West 7,050,273.793 2,468,606.788 547.640 Circle side of Appleridge Road and 25' South of Northeast corner of North side of a Jr. High School Addition. 10/13/1986 32° 59' 56.47015" N 96° 52' 7.07265" W 8. 03-L-1 Kelly Boulevard - Seedling Lane 7/6/2011 A square is cut on top of a concrete curb on the East 7,047,648.127 2,469,178.497 562.910 side of Kelly Boulevard and 80' North of the 5/5/1986 32° 59' 30.40389" N 96° 52' 0.83925" W centerline of Seedling Lane. 9. 04-D-1 Pear Ridge Drive - 9/12/2007 A square is cut on back of curb on top of Inlet on the 7,052,817.856 2,482,023.190 636.520 Havenuerwood Drive East side of Pear Ridge Drive, 600' South of centerline of Havenuerwood Drive. 7/10/1985 Page 1 of 224 Dallas Water Utilities Benchmarks Last Visit State Plane Northing State Plane Easting Elevation cnt Final-Name: Location Date Set Description Latitude Longitude 10. 04-F-2S Frankford Road - Voss Road 5/22/2007 A Standard Water Department Bench Mark is set in 7,049,856.986 2,477,716.279 648.469 the concrete nose of median on West side of the 12/15/1989 32° 59' 50.93382" N 96° 50' 20.1918" W Intersection at the centerline of Frankford Road, 31' West of centerline of Voss Road. 11. 04-G-1 Spyglass Drive - Seapines Drive 5/22/2007 A square is cut on top of the East concrete curb of 7,049,000.635 2,481,290.502 638.400 Spyglass Drive at Alley North of Seapines Drive. 9/27/1988 32° 59' 41.89996" N 96° 49' 38.38631" W 12. 04-G-3S Frankford Road - Park Grove Lane 5/22/2007 A Standard Water Department Bench Mark is set in a 7,049,884.059 2,478,943.745 640.934 concrete nose of a median on the West side of the 32° 59' 51.0094" N 96° 50' 5.77484" W Intersection at the centerline of Frankford Road and 35.5' West of centerline of Park Grove Lane.