Records of the Cuyamaca Water Company, formerly the San Diego Flume Company, which was owned and operated by Colonel Ed Fletcher and Montana businessman James A. Murray from June 1, 1910, until its sale to the La Mesa, Lemon Grove and Spring Valley Irrigation District on January 4, 1926. The Cuyamaca Water Company Records contain typescripts of reports; water rights contracts transferred from the San Diego Flume Company; technical drawings of flumes, siphons, pumping stations, concrete pipes, and forebays; and maps of flume routes, dam locations, proposed dam locations, subdivisions, and the watershed of the San Diego River. A substantial number of the reports relate to the El Capitan Dam and Reservoir Project and the legal controversy surrounding that project. The strength of this collection, however, lies in the maps and technical drawings series, which cartographically documents the growth of the water company. The subdivision maps evidence the growth of the eastern central portion of San Diego as it developed from an agricultural province to a burgeoning residential area. This collection reflects material that was primarily generated and employed by the managers and engineers in the field, and is complemented by the material in the Fletcher Family Papers (MSS 81), which document the administration of the Cuyamaca Water Company.

Historical Background

On June 1, 1910, Colonel Ed Fletcher and Montana businessman James A. Murray purchased the San Diego Flume Company for $150,000, renaming it the Cuyamaca Water Company. The initial purchase transferred all water rights and properties owned and managed by the San Diego Flume Company to the Cuyamaca Water Company, including the Cuyamaca Reservoir and Dam, the Diverting Dam, Eucalyptus Reservoir, La Mesa Reservoir (later renamed Murray Reservoir), and the thirty-six mile Cuyamaca flume line, which ran parallel just east and south of the San Diego River from the Diverting Dam, located on the San Diego River just below the junction of the Boulder Creek, to the Eucalyptus Reservoir, located near present day La Mesa.

The Cuyamaca Water Company was one of several water companies servicing the greater San Diego area at this time. At the time of purchase from the San Diego Flume Company, the Cuyamaca Water Company was furnishing irrigation water to Ex-Mission Rancho, Rancho El Cajon and domestic water to a portion of the City of San Diego. Fletcher and Murray expanded the areas serviced by the Cuyamaca Water Company to include La Mesa, East San Diego and El Cajon; by 1924 the Cuyamaca Water Company was furnishing between 65,000 and 70,000 people with water, both for irrigation and domestic purposes.

Fletcher and Murray owned and operated the Cuyamaca Water Company for 15 years, making or planning several improvements to the existing system, including the construction of the San Vicente Dam and Reservoir, the El Capitan Dam and Reservoir, the Mission Gorge Dam and Reservoir (which was never realized) and the purchase of the El Monte Pumping Station. The most ambitious and controversial of these projects was the El Capitan Dam and Reservoir, which, from its conception, was met with resistence from the City of San Diego. After the Cuyamaca Water Company secured the land intended for the El Capitan Dam and Reservoir, the City of San Diego filed to condemn the Cuyamaca Water Company in an effort to stifle any further development, usurp its water rights and acquire the company at a nominal price. The City of San Diego appealled to the Rail Road Commission to fix a valuation on the Cuyamaca Water Company, which was determined to be $745,000. The City of San Diego, however, declined to exercise its right to purchase the company and dropped the suit. Despite the efforts of Fletcher and Murray, the El Capitan Dam and Reservoir project was not completed until 1935. Many of the projects initiated by the Cuyamaca Water Company were not completed until after the company was sold.

The initial financial arrangement between Murray and Fletcher saw Murray as the principal financier of the Cuyamaca Water Company, owning 5/6 of the company, and Fletcher owning the remaining 1/6 and managing the company. In 1915 William G. Henshaw, a San Diego businessman instrumental in helping to build the Lake Hodges Dam with Fletcher, purchased one half of Fletcher's 1/6 interest in the Cuyamaca Water Company. The three men attempted to sell the Cuyamaca Water Company to the City of San Diego and the La Mesa, Lemon Grove and Spring Valley Irrigation District on several occassions without success. Eventually, Colonel Ed Fletcher sold the Cuyamaca Water Company to the La Mesa, Lemon Grove and Spring Valley Irrigation District for $1,400,000 on January 4, 1926.

Scope and Content of Collection

The records of the Cuyamaca Water Company include typescript reports, contracts, water rights documents, technical drawings, and maps used for San Diego land and water development from the late 1800s to the mid-1930s. The Cuyamaca Water Company Records are arranged in three series: 1) REPORTS, STUDIES AND SUMMARIES; 2) WATER RIGHTS AND CONTRACTS and 3) MAPS AND TECHINICAL DRAWINGS.

The strength of this collection is the MAPS AND TECHNICAL DRAWINGS series with over three hundred twenty-five maps and technical drawings documenting the early development of San Diego County water resources. Of particular interest is the material, both maps and typescript reports, related to the condemnation suit brought against the Cuyamaca Water Company by the City of San Diego.

This collection complements the BUSINESS RECORDS series of the FLETCHER FAMILY PAPERS (MSS 81), which contain numerous folders relating to the Cuyamaca Water Company, such as correspondence, reports, studies, and summaries. The inclusive dates of the Cuyamaca Water Company Records are 1867-1938; however, the bulk of the material dates from 1910-1925.


This series contains typescript reports, arranged alphabetically, related to the operation and development of the Cuyamaca Water Company that describe and detail the structures and holdings of the Cuyamaca Water Company and efforts to expand and improve the system. A significant number of reports are related to the City of San Diego's attempt to have the Cuyamaca Water Company condemned, particularly the folders titled: "Act of Congress Granting El Capitan Land to the City of San Diego," "Data on El Capitan" and "El Capitan Dam Sites - Core Drill Records and Profiles," as well as the folders relating to valuation, depreciation, rate hearings, and the Rail Road Commission. Also of interest are the reports entitled "Original Cost of the Cuyamaca Water Company" and both folders titled "Description of the Cuyamaca Water System - Harritt," which relate the chronological history of the water system from 1886 to 1926 and the improvements made to this point as well as expected expansion of the system. The original titles of the reports were preserved whenever possible.


This series documents the extant riparian and water rights purchased by the San Diego Flume Company and later transfered to the Cuyamaca Water Company. The folders titled "Water Rights: Contracts and Deeds Book" document the water rights of the San Diego Flume Company and the Cuyamaca Water Company with their customers. The contracts and deeds are arranged in the original order they were filed with deed numbers often out of numerical order. Also included is an index, arranged alphabetically, that lists the name of the water rights owner and the page number location of the contract.


This series is comprised of seven subseries: A) General Systems; B) Subdivisions; C) Dams and Reservoirs Built; D) Dams and Reservoirs, Not Built; E) Flume Routes, Flumes, Siphons, and Tunnels; F) Technical Drawings; and, G) Pumps and Wells. The MAPS AND TECHNICAL DRAWINGS series is the most extensive series of the collection, and meticulously documents the watershed of the Cuyamaca Water Company and its improvements, whether actualized or anticipated. The maps are arranged in alphabetical order within subseries, and the map numbers, when provided, have been included. The map numbers can be cross referenced with an index located in box numbers 83 and 84 of the Fletcher Family Papers (MSS 81). The maps are generally blueprint, diazo photoprints, ink on paper, or ink on linen.

A) The General Systems subseries contains maps that provide the broadest overview of the Cuyamaca Water Company's watershed, including several maps that reveal the entire watershed of the Cuyamaca Water Company.

B) The Subdivisions subseries contains the greatest number of maps in this series and complements the General Systems maps offering detailed views of new residential development within the watershed of the Cuyamaca Water Company.

C) The Dams and Reservoirs Built subseries contains maps of dams and reservoirs that may or may not have been built during the tenure of the Cuyamaca Water Company, but were developed during this period and eventually completed. Included in this subseries are the following dams and reservoirs: El Capitan, Eucalyptus, Grossmont, La Mesa, Old Mission, and San Vicente. The El Capitan and San Vicente Dams and Reservoirs are the most notable projects that were developed but not completed until the company was sold.

D) The Dams and Reservoirs, Not Built subseries contains maps from projects that were being developed but never actualized. The most notable projects are the Boulder Creek Dam and Conduit and the Mission Gorge Dam and Reservoir.

E) The Flume Routes, Flumes, Siphons, and Tunnels subseries contains maps detailing the development, improvement and operation of the Cuyamaca Flume and its numerous siphons, trestles and tunnels. There are several maps of the El Capitan Dam and Reservoir site relating to the condemnation suit leveled against the Cuyamaca Water Company by the City of San Diego.

F) The Technical Drawings subseries contains drawings of equipment and structures developed and employed by the Cuyamaca Water Company. There are a number of drawings pertaining to flume construction, development and improvement.

D) The Pumps and Wells subseries contains maps relating to the development and construction of a number of pumps and wells within the Cuyamaca Water Company system.


The Fletcher Family Papers, 1870-1955 (MSS 81).


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Box Folder Oversize
1 1 About Diesel Engines, 1931 - 1938.
Includes catalogs, correspondence, maintenance reports, and photographs.
1 2 Act of Congress Granting El Capitan Land to the City of San Diego, 1919.
1 3 Available Water Supply from Cuyamaca System, 1922.
Correspondence from T. H. King, Chief Engineer of the Cuyamaca Water Company, to the Honorable, the Board of Water Commissioners.
1 4 Certified Copies of Water Plane Measurements on the San Diego River, 1913.
1 5 Computations Showing Duty of Water on Cuyamaca System, 1918.
1 6 Cost of Various Structures, 1913 - 1914.
Valuations of water systems and plants including cost analysis.
1 7 Cuyamaca Studies - F. M. Faude, 1917 - 1918.
Includes charts, correspondence and maps.
1 8 Data on El Capitan and Cuyamaca System - C. Harritt, 1915 - 1923.
Includes a report written by John Hatton, Acting District Forester; Charles Couch, Attorney; and, Indian Agent Hoffman.
1 9 Depreciation Reports, 1899 - 1915.
"Reasons for Using the Straightline Method in Arriving at the Depreciation of a Structure," "Depreciation and Rate Control," "Mulholland Report on Depreciation," and "Data on Depreciation."
1 10 Description of the Cuyamaca System - C. Harritt, 1914 - 1924.
Includes the following reports: "Elevation of Various Reservoir Sites along the Flume," "Area of Water Bearing Gravels," "Area and Capacity of: Murray Res., Cuyamaca Res., Mt. Helix Res., Fletcher Res., Bancroft Res., and Alvarado Res.," "List of Private Pumping Plants on the San Diego River," "La Mesa Ditch; map of Miles Res.," "System map showing drainage areas," "Boulder Creek Power Plant," and "Quantities of Concrete and Excavation in Grossmont Res."
1 11 Description of the Cuyamaca Water System - C. Harritt, 1924 - 1930.
Includes the following reports: "Brief Description of the Cuyamaca System" and "Description of the District System."
1 12 Diversion Dam Lake - Descriptions.
Parcel coordinates and descriptions for the diversion dam lake.
1 13 Dye Canyon Reservoir.
Estimates of materials, capacity calculation and map.
1 14 El Capitan Dam Sites - Core drill records and profiles, 1915 - 1924.
Includes charts, graphs and photographs, as well as two years of ten day progress reports detailing the City of San Diego's investigation of the El Capitan dam site.
2 1 Engineer's Report on the Condition of the Cuyamaca Flume, 1925 - 1931.
Includes an analysis of costs, expenses and income under terms of proposed agreement, as well as several newpaper clippings from the FREEMAN REPORT.
2 2 Flume Reports, 1914 - 1916.
Includes the following reports: "Classification of Main Flume," "Flume Line," "Service Conditions," "Flume Measurements," and "Flume Leakage."
2 3 Hydrographic Study of San Vicente Creek, 1923.
As reported by Fred Green to Colonel Ed Fletcher.
2 4 Mission Gorge Project - Mass Curve of Reservoir Operation, 1921.
As reported by T. H. King.
2 5 Net Safe Yield - Sweetwater Water Company.
Extract from a report.
2 6 Net Yield of San Diego River Reservoirs, 1923 - 1930.
2 7 Original Cost of the San Diego Flume Company Water System, 1912.
As reported by C. S. Alverson.
2 8 Rail Road Commissioner's Audit of Account of Cuyamaca Water Company, 1921 - 1924.
2 9 Rainfall Records, 1887 - 1932.
The following locales are included in the report: Cuyamaca Dam, Diverting Dam, Chocolate Sect. House, Los Coches, El Cajon (Sweetwater Pass), Eucalyptus Reservoir (Grossmont), Boulder Creek, East Cuyamaca, and Schilling Ranch.
2 10 Rate Hearing of Cuyamaca Water Company before the Rail Road Commission, 1920.
2 11 Recommendations of the Board of Water Commissioners of the City of San Diego, 1922.
2 12-13 Report on the Net Safe Yield of Mission Gorge Reservoir, 1887 - 1921.
As reported by T. H. King.
2 14 Report on the Safe Yield of Fletcher Lake and South Fork Reservoir, 1922.
2 15 Report on the Preliminary Inventory and Estimate of the Value of the Cuyamaca Water Company's Property, 1923.
As reported by C. Harritt to John Freeman. Also includes report data for John Freeman regarding the yield of the El Monte gravels.
3 1 Report on the Underground Waters of the San Diego River, 1912.
As reported by C. S. Alverson.
3 2 Report on the Water Pumped at El Monte Pumping Plant, 1921 - 1925.
As reported by C. Harritt to Colonel Ed Fletcher.
3 3 Report on the Water Situation to the Mayor and Common Council of the City of San Diego, 1924.
As reported by the City Manager Rhodes.
3 4 Report on the Water Supply Studies, San Diego River, 1920.
As reported by the U. S. Reclamation Service, includes maps, charts and graphs.
3 5 Report on the Watershed of the San Diego River, 1921.
Reported by M. M. O' Shaughnessey, San Francisco City Engineer, to John D. Spreckels and Colonel Ed Fletcher.
3 6 Report on the Water Tower for the La Mesa Reservoir, 1901.
As reported by Edwin Capps.
3 7 Report Outlining Logical Development of the Waters of the San Diego River and the Upper Santa Ysabel Creek, 1923.
As reported by T. H. King.
3 8 Report Regarding a Water Rate Increase for the Sweetwater Water Company, 1923.
As reported by City Manager Rhodes.
3 9 Safe Yield of City of San Diego, 1915.
As reported by Charles H. Lee and presented at the Rail Road Commission Hearing in 1915.
3 10 Small Tract Plats, 1915 - 1916.
Includes an index of small tracts and subdivisions.
3 11 Tabulated Water Data, 1886 - 1925.
Includes the following reports: "Paramount Rights Suit," "Cuyamaca Water Gage Heights - Cuyamaca Lake, 1899 -1912, and Cuyamaca Flood Waste Calculations, 1916," "1916 Flood Reports: La Mesa Reservoir," and numerous untitled reports.
3 12 Total Diversions of Cuyamaca Water Company, 1889 - 1921.
3 13 Valuation of Water Rights of Spring Valley Water Company, 1916.
Valuations - Cuyamaca Water Company.
3 14 Application No. 118 before the Rail Road Commission of California. Estimate of reproduction cost, present value and annual charges, 1912 - 1915.
3 15 Fulton Lane - Construction costs, 1912 - 1914.
3 16-17 Water Rates of Agencies from California, 1916 - 1923.


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Box Folder Oversize
4 1 Riparian Owners on San Diego River, 1887 - 1918.
Agreement with Murray, Henshaw and Fletcher.
4 2 Riparian Rights and Agreements on San Diego River, 1886 - 1935.
Notice of appropriation, grant of rights on El Capitan Reservation and correspondence.
4 3 Riparian Rights and Rights of Way, 1886 - 1928.
4 4 Water Appropriations and Notices of Water Appropriations on the San Diego River, 1867 - 1916.
4 5 Water Rights of Cuyamaca Water Company, 1914.
Water Rights: Contracts and Deeds Books.
4 6 Numbers 1 - 7, 1886 - 1887.
4 7 Numbers 7 - 8 and 10 - 17, 1887 - 1888.
4 8 Numbers 18 - 21, 1887 - 1889.
4 9 Numbers 22 - 35, 1887 - 1890.
Includes contract number 50; contract number 33 is missing.
4 10 Numbers 35 - 38 and 41, 1890.
4 11 Numbers 39 - 41 and 44, 1890 - 1892.
4 12 Numbers 42 - 43 and 45 - 46, 1890.
4 13 Numbers 46, 52, 33, and 54, 1890 - 1891.
4 14 Numbers 51, 56, 33, 55, and 57 - 58, 1891 - 1894.
4 15 Numbers 58 and 61 - 63, 1891.
4 16 Numbers 63 - 66, 69, and 70, 1891.
4 17 Numbers 71, 67, and 72 - 83, 1891.
4 18 Numbers 83 - 84, 68, and 85 - 88, 1891 - 1892.
4 19 Numbers 88, 90 - 94, 131, and 133 - 134, 1892.
4 20 Numbers 137 - 140, 142 - 144, 149 - 151, 154 - 158, 160, and 162, 1892 - 1893.
4 21 Numbers 159, 167, 172 - 175, 166, 176 - 177, 180, and 182 - 187, 1893.
4 22 Numbers 190, 189, 188, 191 - 194, 196 - 197, 195, and 198, 1893.
5 1 Numbers 198, 200 - 204, 206, and 205, 1893.
5 2 Numbers 207, 126, 208, 211, 213 - 219, 212, and 222, 1893 - 1894.
5 3 Numbers 224 - 231, 249, 233 - 239, and 232, 1893 - 1895.
5 4 Numbers 240 -243, 247, 244, 246, 245, 248, and 250 - 253, 1894 - 1895.
5 5 Numbers 254 - 258, 260 - 263, 159, and 266, 1895 - 1896.
5 6 Numbers 267 - 279, 265, and 281 - 283, 1895 - 1896.
5 7 Numbers 285 - 296, 1896 - 1897.
5 8 Numbers 297, 299a - 302, 298, 280, 299, 300, 301a, 264, 302a, and 299, 1897 - 1898.
5 9 Numbers 306 - 308, 303, and 309 - 313, 1898 - 1902.
5 10 Numbers 314 - 330, 1902 - 1903.
5 11 Numbers 331 - 339, 1904 - 1906.
5 12 Numbers 340 - 366, 1906 - 1909.
Includes an alphabetical index of names and assigned contract numbers.
5 13 La Mesa Colony Contract, 1887.
5 14 Blank contract.
5 15 Contract with Soutler and Crosby, 1890.
5 16 Numbers 367 - 383, 1909 - 1910.
5 17 Numbers 384 - 392, 1910.
5 18 Alphabetical index, indexed to page number.


General Systems

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Box Folder Oversize
MC-999-01 Cuyamaca Official System. Map number 2354.
MC-999-02 Cuyamaca Reservoir - Rainfall and Drainage Area. Map number 2454.
Cuyamaca Water Company.
MC-146-01 Map number 2446, 1914.
MC-999-03 Map showing actual area under irrigation below El Monte Pump Station and irrigation service area. Map number 2449, 1915.
MC-999-04 Distribution system. Map number 2709.
MC-146-02 Index map - Index sheet number 5. Map number 2709.
MC-999-05 Index map of distribution system plats. Map number 2709, 1913.
MC-146-03 Pumping plants, drainage areas and stream gaging. Exhibit "H." Map number 2498, 1915.
San Diego County, California.
MC-999-06 Map number 2355. Formerly number 2449B, 1915.
MC-999-07 Exhibit "A" and "B." Map number 2449, 1914.
MC-999-08 Exhibit "U." Map number 2449A. [Map number 2684 is written on the back of this map], 1915.
MC-999-09 Territory served. Map number 2737, 1921.
Cuyamaca Water System.
MC-999-10 Map number 2595, 1918.
MC-999-11 Showing service areas. Map number 2706, 1919.
La Mesa, Lemon Grove and Spring Valley Irrigation District.
Lippincott proposal.
MC-146-04 Map number 3002 (two identical maps).
MC-146-05 Blueprint version (two identical maps).
MC-146-06 Map showing boundaries. Map number 3055.
MC-146-07 Map showing properties involved in a proposed compromise agreement with the City of San Diego. Map number 3067 (three identical maps).
MC-146-08 Map showing structural properties. Map number 3057, 1914.
Map showing various points of diversion from the San Diego River.
MC-999-12 Map number 3030.
MC-999-13 Map number 3054, 1926.
MC-146-09 La Mesa, Lemon Grove Irrigation District and Source Supply. Map number 2577.
MC-146-10 La Mesa Reservoir and Pipeline - Eucalyptus Reservoir distribution lines. Map number 2290.
MC-146-11 Lemon Grove Flume Lines. Map number 2266.
MC-999-14 Mission Valley Pipeline. Map number 2185.
MC-146-12 Murray Hill Reservoir. Diagram showing elevation and distances. Map number 2279, 1911.
MC-999-15 North of San Diego River - Flume and Pipe Supply. Map number 2053, 1889.
MC-999-16 Rancho Mission. Map showing lands upon which the Cuyamaca Water Company owns the riparian rights. Map number 2785.
MC-999-17 San Diego County. Map showing drainage areas and reservoir sites. Map number 2108.
MC-999-18 San Diego Flume System. Map showing irrigated lands and distributing pipes. Map number 2321, 1908.
San Diego Flume System and General Location of Lands and Lots.
MC-146-13 Map number 2109.
MC-146-14 This map is identical to the previous map with a different map number. Map number 2287.
San Diego River.
AB-007-C From diverting dam to Mission Dam showing limits of riparian rights acquired. Map number 2752, 1913.
AB-007-C From diverting dam to Mission Dam showing limits of water bearing gravel. Map number 2647, 1913.
MC-146-15 San Diego River Case. Map number 3291, 1930.
Map attached to complaint in San Diego River case in Federal court. There is a handwritten note across the top of the map that reads, "Map showing that portion of San Diego County traversed by the San Diego River and the lands embraced within the watershed there of, containing appropriate markings of the Government and Indian lands situated there in together with water filings there on."
MC-146-16 San Diego River Drainage Areas and Safe Yield. Map number 3516.
MC-146-17 San Diego River, Stations for water plane. Map number 2644 (two identical maps), 1912.
MC-146-18 San Diego - Unidentified map. Map number 2311.
This map is similar to the left half of map number 2818 (MC-147-27) titled "Mission Gorge" located in the Dams and Reservoirs Built subseries.
MC-146-19 Unidentified graph map. Map number 2678.


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Box Folder Oversize
MC-146-20 Alhambra Park. Map number 2349, 1912.
MC-146-21 Belmont. Map number 2220, 1912.
MC-999-19 Boston Ranch. Map number 2824, 1890.
MC-146-22 Cardiff. Map number 2286.
MC-146-23 Carr's. Map number 2222.
MC-146-24 Chase Rancho. Map number 5104.
Chase Rancho - Plat.
MC-146-25 Pipe lines. Map number 2766.
MC-146-26 Subdivisions 1. Map number 2763.
MC-146-27 Choate's Addition. Map number 2193.
Cholla's Road Subdivision.
MC-146-28 Includes lots 1 - 23. Map number 2188.
MC-146-29 Includes lots 24 - 45. Map number 2188.
MC-146-30 City Heights. Columbian Realty Company. Map number 2223.
MC-146-31 Culverwell and Taggart's Addition to San Diego. Map number 2197, 1869.
MC-146-32 Eastgate - Tract number 14. Map number 2280, 1912.
MC-146-33 El Cajon Heights. Map number 2805, 1894.
MC-146-34 El Cajon Heights - Plat - Block 29. Map number 2119.
El Cajon Irrigation District.
MC-999-20 Present and proposed irrigation. Map number 2791 (two identical maps).
MC-999-21 Proposed addition. Map number 2791.
MC-999-22 Showing proposed boundaries of El Cajon. Map number 2791.
MC-999-23 Southern Title Company. "Office copy." Map number 2791.
MC-146-35 El Cajon Valley - Plat - Lot 100. Map number 2856.
MC-146-36 Eureka Lemon Tract. Map number 2123, 1893.
Ex-Mission Rancho.
MC-999-24 Lot number 12. Map number 2215.
MC-999-25 Lot number 12 - Subdivisions 1 and 4. [No map number].
MC-999-26 Lot number 12 - Tract "A". Portion of Tract "A." Map number 2689.
MC-146-37 Section 28. Map number 2277, 1892.
MC-146-38 Tract "A" - Lot 12. Map number 2482.
MC-146-39 Tract "A" - Lot 12. Map number 2482.
MC-146-40 Fanita Ranch and Mission Valley. Map number 2830.
MC-999-27 Grossmont, Mt. Helix, Hawley Heights, and a Portion of Section 20. Map number 2869, 1924.
MC-146-41 H. P. Whitney's Addition to San Diego. Map number 2221.
AB-007-C Lake Jennings - Highway 80 - Alpine. Map number 119, 1930.
MC-146-42 Lakeside Heights. Map number 2189, 1892.
La Mesa.
MC-999-28 Map number 2402.
MC-999-29 Includes La Mesa Colony. Map number 2402.
MC-146-43 La Mesa Acres - South of La Mesa Acres - Tract number 1391. No map number, 1911.
MC-146-44 La Mesa Colony - Amended map. Contour map. Map number 2329, 1891.
La Mesa Springs.
MC-146-45 Map number 2332 (two indentical maps).
MC-146-46 Westside addition. Map number 2386, 1908.
MC-146-47 La Presa and Adjourning Lands. Map number 2782.
MC-146-48 La Presa Colony. Map number 2181.
MC-146-49 Lemon Grove. No map number (two identical maps).
Lemon Grove and Vicinity.
MC-999-30 Map number 2608.
MC-146-50 Diazo photoprint. Map number 2592, 1915.
Lemon Grove Subdivisions.
MC-146-51 Map number 2608.
MC-999-31 Map number 2385.
MC-146-52 Linda Vista Mesa - Camp Kearny. Map number 2680.
MC-146-53 Marlett Tract. Map number 2027, 1913.
MC-146-54 Montecello. Map number 2272, 1908.
MC-148-83 Mount Helix Calavo Gardens. Map mounted on board. No map number, 1935.
MC-146-55 Murray Hill. Map number 2602.
MC-999-32 Murray Hill Number 2. Map number 2112, 1911.
MC-146-56 Nathaniel Smith and Erwin Laraway - Division of land. Map number 2195, 1909.
MC-146-57 New San Diego. Map number 2201.
MC-999-33 Normal Heights - Index map - Road improvement district 2. Map number 2323.
MC-146-58 Orien Tract. Map number 2386, 1912.
MC-999-34 Pacific Building - Distribution system. Map number 2260, 1913.
MC-146-59 Palmateer Tract. No map number, 1912.
MC-146-60 Perris. Map number 2226, 1886.
Rancho El Cajon.
MC-999-35 Portion of area. Map number 2807.
"S" tract.
MC-999-36 Map number 114, 1930.
MC-146-61 Map number 118 - 1 - F (two identical maps).
MC-146-62 Map number 2805.
MC-146-63 Boston Ranch. Map number 2773, 1923.
MC-146-64 Reed and Daley's Addition. Map number 2218.
MC-146-65 Roseland Heights. Map number 2386, 1912.
MC-146-66 San Diego, California. Map number 2224, 1910.
MC-146-67 San Diego Land and Town Addition. Map number 2205, 1886.
MC-999-37 San Diego to El Cajon Heights. Map number 2325.
MC-146-68 Silver Terrace - Amended map. Map number 2206, 1887.
MC-146-69 Spring Valley and Vicinity. Map number 2681.
MC-146-70 Spring Valley Heights. Map number 2388, 1911.
MC-146-71 Teralta. Map number 2183, 1887.
MC-146-72 Valley View. No map number, 1909.
Waterville Heights.
MC-146-73 Map number 2192, 1893.
MC-146-74 Lot number 1. Map number 2483, 1914.
MC-146-75 Lot number 26, East Redlands. Map number 2483, 1914.
MC-146-76 Lot number 283. Map number 2483, 1914.
MC-146-77 West Avondale. Map number 2208, 1910.

Dams and Reservoirs Built

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Box Folder Oversize
MC-999-38 El Cajon - Pipe lines. Map number 2486, 1915.
El Capitan Dam Site.
MC-147-01 Contour map. Map number 2521.
MC-147-02 Contour map. Map number 2809, 1915.
MC-147-03 Lands. Map number 3091.
MC-147-04 Lands. Map number 3103.
MC-147-05 Survey to locate the corners of the El Capitan Dam Site. Map number 2837, 1924.
MC-999-39 Test borings - Profile. Map number 2721 (two identical maps), 1921.
El Capitan Grande Indian Reservation.
MC-999-40 Map numbers 2619 - 2620.
MC-147-06 Map showing the diverting dam and flume. Map number 5171, 1930.
El Capitan Reservoir.
MC-147-07 Map number 2547.
MC-147-08 Operation. Map number 2840 (two identical maps), 1924.
MC-147-09 Eucalyptus Dam and Bridge - Map number 2152.
MC-999-41 Eucalyptus Pass to La Mesa - Flume. Map number 2081.
Eucalyptus Reservoir.
MC-147-10 Showing traverse of reservoir. Map number 2150, 1912.
MC-147-11 Plat. Showing various surveys. Map number 2150, 1912.
MC-147-12 Plat of pipelines. Map number 2149.
Grossmont Reservoir - Plan showing requirements for pump intake.
MC-147-13 Map number 2792.
MC-147-14 Blueprint version. Map number 2792.
La Mesa Dam.
MC-999-42 Contour map. Map number 2316.
MC-147-15 Map number 2493, 1915.
MC-147-16 Longitudinal section. Map number 2339, 1911.
Outlet system.
MC-147-17 Map number 2492, 1915.
MC-147-18 Blueprint version. Map number 2492, 1915.
MC-147-19 Plan. Contour line map. Map number 2312, 1911.
MC-147-20 Profile. Map number 2086.
MC-147-21 Sections for proposed dams. Map number 2552.
MC-147-22 La Mesa Reservoir - Capacity and area scale. Map number 2528.
Old Mission Dam.
MC-147-23 Just below the dam. Blueprint map. Map number 2729.
MC-999-43 Profile just below the dam. Map number 2730.
MC-147-24 San Diego River. Location of cable for stream measurement and automatic bristol gage. Map number 2243, 1912.
MC-147-25 San Diego Flume Company - Tower and stand. Plans and details for the Eucalyptus outlet. Map number 2151.
San Vicente Reservoir.
MC-999-44 Diazo photoprint. Map number 2801.
MC-999-45 Map number 2786.
MC-147-26 Pencil drawing. Map number 2081.

Dams and Reservoirs, Not Built

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Box Folder Oversize
MC-147-27 Albright Reservoir - Spring Valley, 1924.
MC-147-28 Alvarado Canyon Reservoir. Map number 2573, 1919.
MC-147-29 Bancroft Reservoir. Map number 2575.
Boulder Creek Conduit - Contour maps, Exhibit E-2-a.
MC-147-30 Sheet number 1. Map number 2429.
MC-147-31 Sheet number 2. Map number 2429.
MC-147-32 Sheet number 3. Map number 2429.
MC-147-33 Sheet number 4. Map number 2429.
MC-147-34 Sheet number 5. Map number 2429.
MC-147-35 Sheet number 6. Map number 2429.
Boulder Creek Dam Site.
MC-147-36 Cross-section, Exhibit E-1-b. Map number 2429.
MC-147-37 Plan, Exhibit E-1-c. Map number 2429.
MC-147-38 Boulder Creek Mining Claims. Map number 2783.
MC-147-39 Boulder Creek Plat Showing Power Project. Map number 2731, 1921.
MC-147-40 Boulder Creek Power Plant Site. Exhibit E-5. Map number 2429.
Boulder Creek Power Project.
MC-147-41 Conduit, pipeline and powerhouse site, sheet 1. Map number 2015.
MC-147-42 Conduit, pipeline and powerhouse site, sheet 2. Map number 2016.
MC-147-43 Reservoir, dam, conduit, and powerhouse. Map number 2014.
Boulder Creek Project.
MC-147-44 Map number 2044, 1913.
MC-999-46 Showing diverting dam, pipeline and power drop. Map number 2368.
MC-999-47 Together with the Cuyamaca Water Company system. Map number 2737, 1921.
Boulder Creek Reservoir.
MC-147-45 Exhibit E-1-a, map showing the waterline. Map number 2429.
MC-147-46 Map showing waterline. Map number 2377.
MC-147-47 Site number 5. Map number 2370, 1913.
MC-147-48 Sites - Topographic map. Map number 2367, 1913.
MC-147-49 Conduit System - Lands to be irrigated. Map number 2750.
MC-147-50 Conejos Dam Site. Map number 2697, 1919.
MC-147-51 Conejos Reservoir. Map showing waterline. Map number 2162, 1911.
Dye Canyon Reservoir.
MC-147-52 Map number 2409.
MC-999-48 Map number 2812.
MC-147-53 Map number 2450, 1914.
MC-147-54 Dye Canyon - Site number 11; Dye Canyon - Site number 12. Map number 2409, 1910.
MC-147-55 Inaja Reservation. Ownership map. Map number 2768, 1922.
MC-147-56 Inaja Reservoir Site - Cedar Creek. Map number 2469, 1914.
MC-147-57 Junipero Land and Water Company - Proposed Irrigation. Map number 2594, 1906.
MC-147-58 Kinnear Reservoir Site - El Capitan Grande Indian Reservation. Two identical maps, one with annotation. Map number 2267, 1911 - 1912.
MC-147-59 La Mesa, Lemon Grove and Spring Valley Irrigation District. Map of land required for reservoir purposes. Map number 3075, 1914.
MC-147-60 Magnolia Avenue Reservoir - Plan. Map number 2784.
MC-147-61 Miles Reservoir - Number 2. Map number 2452.
Mission Gorge.
MC-147-62 Comparative profiles of dam sites. Map number 2736.
MC-147-63 Constant angle dam. Map number 2761.
MC-147-64 Graphic comparison. Map number 2778.
Mission Gorge Reservoir.
MC-147-65 Map number 2716, 1921.
MC-147-66 Numbers 2 and 3. Map number 2818, 1920.
Mission Gorge Reservoir on the San Diego River.
MC-999-49 Map number 2713, 1921.
MC-999-50 Map number 2742, 1921.
MC-147-67 Mount Helix Reservoir. Map number 2574, 1919.
MC-147-68 New South Fork Dam. Topographic map. Map number 2708, 1920.
MC-147-69 Pine Valley Conduit. Map number 2451, 1914.
Pine Valley Reservoir - Proposed.
MC-147-70 Map, no number, 1914.
MC-147-71 Diazo photoprint. Map number 2237.
MC-147-72 Traced from Diazo photoprint. Map number 2237, 1914.
MC-147-73 Pine Valley Tunnel. Map number 2103.
MC-999-51 Poverty Gulch Dams and Reservoirs Sites. Map number 2324, 1911.
MC-147-74 Poverty Gulch Reservoir. Exhibit A. Map number 2371.
San Diego River.
MC-147-75 Dam and Reservoir. Map Number 2750, 1921.
MC-147-76 Statistics of undeveloped reservoir sites. Map number 2518, 1915.
MC-147-77 Tule Dam Plan. Exhibit E-1-cc. Map number 2429.
MC-147-78 Tule Dam Site - Cross-section map. Exhibit E-1-bb. Map number 2429.
Tule Reservoir.
MC-147-79 Connecting transit lines. Contour map. Map number 2427, 1914.
MC-147-80 Exhibit E-1-aa - Map showing waterline. Map number 2429.

Flume Routes, Flumes, Siphons, and Tunnels

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Box Folder Oversize
MC-999-52 Alvarado Siphon Replacement - Profile. Map number 3252, 1929.
MC-148-01 Alvarado Siphon to La Mesa Reservoir - Plat. Map number 2578, 1917.
MC-148-02 Capehorn - Tunnel number 4. Map number 2269.
Chocolate Canyon.
MC-148-03 Engine house for pump station number 2. Map number 2366.
MC-148-04 Original flume location. Includes present location of Chocolate Siphon. Map number 2868, 1925.
MC-148-05 Proposed flume - Line "B." Map number 2104.
Chocolate Creek Feeder.
MC-999-53 East side of canyon. Map number 2692.
MC-148-06 Proposed. Blueprint version. Map number 2691.
MC-148-07 Proposed. Tracing cloth version. Map number 2692.
MC-999-54 West side of canyon. Map number 2693.
MC-148-08 Chocolate Creek Siphon - Forebay entrance - East end. Map number 2514, 1911.
MC-999-55 Conejos Dam Site. Conejos Creek to junction with South Fork (two identical maps). Map number 2620, 1919.
Cresson Flume Line.
MC-148-09 Map number 2576.
MC-999-56 Profile. Map number 2580.
Cuyamaca Water Company - Lands involved in condemnation suit. Location of flume on the lands sought to be condemned west from Chocolate Creek Siphon.
MC-148-10 Map number 2866, 1925.
MC-148-11 Blueprint version. Map number 2866, 1925.
MC-148-12 El Cajon Grant - Flume location. Map number 2080.
MC-999-57 El Cajon Valley - Profile. Map number 2080.
MC-148-13 El Capitan and Chocolate Creek. Boundaries in red flags; white flags on contours. No map number, 1921.
MC-148-14 El Capitan Dam Site - Lands sought in San Diego condemnation suit. Map number 3295, 1931.
El Capitan Grande Indian Reservation.
MC-148-15 Flume line. Map number 2077.
MC-148-16 Lands granted to the City of San Diego by an Act of Congress. Lands involved in the condemnation suit. Map number 3280.
Pumping plant number 3.
MC-148-17 Map number 2417, 1914.
MC-148-19 Cloth version. Map number 2417, 1914.
MC-148-18 Blueprint version. Map number 2417, 1914.
MC-148-20 Township lines - Boundaries of number 15. Map number 2289, 1879.
El Capitan Reservoir.
MC-148-21 Dam site - Private lands and Indian reservation. Map number 2724.
MC-148-22 Showing dam. Map number 2685, 1921.
AB-007-C El Monte to La Mesa - Flume line. Map number 3158.
El Monte Tunnel and Lankersheim Tunnel.
MC-148-23 Proposal - Relocation between the two tunnels. Map number 2028, 1913.
MC-999-58 Proposed change of flume line. Map number 2028, 1913.
MC-148-24 El Monte Tunnel number 5 and 6. Map number 2269.
MC-148-25 El Monte Tunnel number 7. Map number 2269.
AB-007-C End of Flume Line to College Hill Tract - Profile of located pipeline. Map number 2071, 1889.
MC-999-59 Eucalyptus Reservoir - Section of flume to be replaced - Profile. Map number 3411.
MC-148-26 Kuehner Property. Hamilton, El Capitan Dam Site, including the flume and Chocolate Creek Pumping Plant. Map number 2546, 1915.
MC-999-60 Lakeside - Service area. Map number 2025, 1913.
AB-007-C Lakeview Siphon - Profile. Map number 2364, 1913.
La Mesa Dam.
MC-148-28 Experimental line for small flume. Map number 2081.
MC-999-61 Main wood pipe. Map number 2334.
La Mesa Ditch.
MC-148-27 Cut-off tunnel. Map number 2557, 1917.
MC-999-62 Profile. Map number 2318, 1895.
MC-999-63 Reconstruction. Map number 2503, 1915.
La Mesa, Lemon Grove and Spring Valley Irrigation District.
MC-148-29 Profile. Profile of cut-off siphon "B" and "C," flume section number 9. No map number, 1929.
AB-007-C Flume Replacement. Map number 2170, 1932.
MC-999-64 Los Coches Siphon. Diverting Dam to mile post number 1, tunnel number 6 to Los Coches Siphon. No map number.
MC-999-65 Morris Line - Profile. Map number 2301.
Murray Hill.
MC-148-30 Concrete pipe line. Map number 2114.
MC-148-31 Proposed water system using present pump. Map number 2262.
MC-148-32 Pumping Plant Number 2 - Profile. Map number 2512, 1915.
Quail Canyon Siphon.
MC-148-33 Land sought to be condemned. Map number 3060, 1926.
AB-007-C Map number 2363, 1913.
MC-999-66 San Diego River Bed. Map number 2090, 1913.
MC-148-34 Sand Creek - Flume from tunnel number 1. Includes proposed inverted siphon. Map number 2274, 1911.
Sand Creek Siphon.
MC-148-35 Plan showing forebays and connections, from South Fork to Mission Dam. Map number 2231, 1913.
MC-999-67 Reinfornced concrete pipe - Profile. Map number 2235, 1913.
MC-148-36 Tunnels number 1, 2, 3, and 8. Map number 2269.
South Fork Feeder.
MC-148-37 East end. Map number 2031, 1913.
MC-148-38 Main flume from outlet - Profile. Map number 2305, 1913.
MC-148-39 Main flume from outlet of South Fork Siphon - Profile. Map number 2404, 1913.
MC-999-68 Profile. Map number 2413.
MC-148-40 Standard trestle for metal flume. Map number 2038, 1913.
South Fork Siphon.
MC-148-41 Includes location of original flume. Map number 2867, 1925.
AB-007-C Profile of the second line of the South Fork Siphon. Map number 2581, 1916.
MC-999-69 Steel siphon. Map number 2227, 1911.
MC-999-70 To Chocolate Siphon. Map number 2303.
MC-148-42 Trestles crossing to South Fork Creek. Map number 2790, 1916.
MC-148-43 Sweetwater Siphon - Profile. Map number 2710, 1919.

Technical Drawings

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Box Folder Oversize
MC-148-44 Air valves and connection - Plan. Map number 2134, 1911.
MC-148-45 Chocolate Canyon Siphon - Proposal. Map number 2099.
MC-148-46 Chocolate Siphon - Flume Alignment - Tunnel number 3. Map number 2033.
MC-148-47 Conejos Canal - Map. Map number 2164, 1911.
MC-148-48 El Capitan Indian Reservation - Plant number 3. Map number 2034, 1913.
Flume Cross-section - Thomas and Post Flume Company.
MC-148-49 Letter addressed to "My Dear Colonel" relating to the four maps below. No number associated with this document, 1912.
MC-148-50 Proposal. Blueprint version. Map number 2660, 1912.
MC-148-51 Proposal. Tracing cloth version. Map number 2001, 1912.
Flume Elevation and Cross-section - Thomas and Post Flume System.
MC-148-52 Blueprint version. Map number 2661, 1912.
MC-148-53 Tracing cloth version. Map number 2002, 1912.
MC-148-54 Flume and Tunnel Section - Abandoned - Profile. Map number 2101.
MC-148-55 Flume in Earth Tunnel. Map number 2101.
MC-148-56 Flume on Grande Stretch. Map number 2101.
MC-148-57 Flume Siphon Forebays, on state highway at Grossmont, CA. Map number 3106, 1927.
MC-148-58 Flume - Tunnel - Plan. Flume in tunnel and upon trestle. Map number 2101.
MC-148-59 Flume under Roads - Plan. Map number 2365, 1913.
MC-148-60 Grossmont - Connection of 36" concrete pipe to forebay and flume. Map number 2133, 1911.
MC-148-61 Hammond Wood Pipe - Profile. Map number 2074.
MC-148-62 La Mesa Dam - Plan of valve tower. Map number 2078.
MC-148-63 Lowline Concrete Pipe Section "D." Map number 2165.
MC-148-64 Mould for Forming Concrete Arch Lining for Tunnels. Map number 2005, 1913.
MC-148-65 Pumping Plant Number 2. Sketch. Map number 2083, 1913.
MC-148-66 Sand Creek - Cement lined conduit. Map number 2023, 1913.
MC-148-67 Sante Fe Wells - Vacuum pump. Map number 2380.
South Fork Siphon.
MC-148-68 Proposal. Map number 2095.
MC-148-69 Flume Alignment - Tunnel Number 3. Map number 2018.
MC-148-70 Trestles - Details of special iron work. No map number, 1916.
MC-148-71 Standard Cement Lined Conduit - Plant number 2. Map number 2007, 1913.
MC-148-72 Standard Reinforced Concrete Conduit - Plant number 3. Map number 2011, 1913.
MC-148-73 Standard Sections Compared - Reconstruction showing proper grade relation for set-up. Map number 2008, 1913.
MC-148-74 Standard Trestles for Conduit - Plant number 1. Map number 2004, 1913.
MC-148-75 Standard Tunnel Cross-section - Reconstruction. Map number 2010, 1913.
MC-148-76 Standard Tunnel Portal Cross-section. Map number 2490 (two identical maps), 1898.
MC-148-77 Tunnels - Concrete arch lining. Map number 2006, 1913.
MC-148-78 Types of Structures Contemplated. Map number 2003, 1913.

Pumps and Wells

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Box Folder Oversize
El Cajon Valley.
MC-999-71 Map showing location of test wells, pumping plant, etc. Map number 2319, 1904.
MC-999-72 Alverson's investigation of wells. Map number 2634.
MC-148-79 El Monte Pumping Plant - Lands acquired from La Mesa Development Company. Map number 2383, 1913.
MC-148-80 La Mesa - Pumping Station. Map number 2634 (two identical drawings).
MC-148-81 Mission Valley. Sketch showing relative position of water before and after pumping season of 1899. Map number 2088.
San Diego River.
MC-148-82 Map showing station for water plane. Map number 2033, 1912.
MC-999-73 Diverting Dam to Mission Dam. Map showing water-bearing gravel. Map number 2105.
MC-999-74 El Monte to Fanita Ranch. No map number.
MC-999-75 Mission Dam to ocean. Map number 2410 (two identical maps).

Finding aid generated: 2014-02-19