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ADOT is assisting COT with an MUP extension project in Tempe, Maricopa County, Arizona. The new MUP provides a connection between Kyrene Road and the Western Canal for pedestrians and cyclists. The MUP is an extension of the ‘Brake’ bicycle boulevard corridor as outlined in the City of Tempe Transportation Master Plan. The ‘Brake’ bicycle boulevard runs from Tempe’s eastern limits bordering Chandler, to its western limits bordering the town of Guadalupe. The purpose of this project was to address the missing link in the MUP along the ‘Brake’ route, creating over seven miles of MUP and providing a safer environment for cyclists and pedestrians.

Booklet gives a brief overview of the history of SRP and the canal system. "The Salt River Project (SRP) began as a partnership between the federal government and landowners in Central Arizona – a partnership that has allowed the area to flourish. When landowners formed the Salt River Valley Water Users’ Association (the Association) over a century ago, it signaled a turning point in the rise of Phoenix as a major Southwestern city. SRP became one of the nation’s first reclamation projects in 1903. Working with the federal government, the Association built dams along the Salt and Verde rivers that fed an extensive canal system. This infrastructure provided a regular flow of water to farmers who had previously faced a vicious cycle of drought and flood. SRP grew and evolved to meet the needs of a growing and changing community. Between 1920 and 1930, SRP expanded its pioneering hydroelectric generation and built power lines to deliver electricity to people in rural areas of the Salt River Valley. Today, SRP’s water storage and delivery system delivers roughly 800,000 acre-feet to the Salt River Valley every year. For nearly 120 years, Arizonans have looked to SRP for community leadership and dependable water and power. Today, SRP is continuing its legacy – providing low-cost, reliable water and electricity to people in the Valley so our communities can continue to thrive."

The Salt River Project Diversion and Conveyance Historic District consists of nine main canals, the diversion dam that feeds water to those canals, and one hydropower plant situated on one of those canals. The contributing properties are: Granite Reef Diversion Dam (a structure); the Southside Gatekeeper���s house at the dam (a building); three canals serving land on the north side of the Salt River (the Arizona, Grand, and New Crosscut canals, all structures); six canals serving land on the south side of the Salt River (the South, Eastern, Consolidated, Tempe, Western, and Highline canals, all structures); and the Crosscut Hydro Plant (a building), situated at the downstream end of the New Crosscut Canal. All are part of an operationally interconnected system of 1,300 miles of canals, laterals, ditches, and drains, with appurtenant sub-structures, that supply water to farms and communities within an approximately 375 square mile water service area. The Crosscut Hydro Plant is one component of the larger Salt River Project power generation system that, collectively, provides electric service to a three county area of central Arizona that encompasses Phoenix and its satellite communities and area farms. The Salt River Project Diversion and Conveyance System exhibits statewide significance under Criterion A in the areas of Politics/Government, Community Planning and Development, and Agriculture. Under Criterion A it is associated with the evolution of the Salt River Project, one of the first five federally-sponsored western water projects authorized under the National Reclamation Act of 1902. Under Politics/Government and Community Planning and Development, it is associated with the growth of the Phoenix metropolitan area. Under Agriculture, it was pivotal in providing water to support the agricultural industry that was the economic foundation of local communities in the Salt River Valley.

Pursuant to a 2009 Programmatic Agreement between the Bureau of Reclamation, Phoenix Area Office, the Salt River Project, and the Arizona State Historic Preservation Office, the Bureau of Reclamation prepared documentation formally nominating the Salt River Project system of dams and main canals to the National Register of Historic Places (Register). The Salt River Project Multiple Property Submission (MPS) was formally accepted and listed on the Register on August 7, 2017. This is the Salt River Project Multiple Property Documentation Form, or cover document, which provides a historic context for nomination under this MPS, describes associated property types, and provides a list of major references.

The Salt River Valley consists of nearly half-million acres in central Arizona. It is a semiarid area with alluvial soils suitable for agriculture, but low rainfall makes irrigation a necessity for cultivation. Early settlers knew that a system of canals and laterals was necessary for agricultural production. For sustained growth, the farmers needed a water storage facility. With the passage of the National Reclamation Act in 1902, the federal government authorized the Salt River Project (SRP). As work progressed on the construction of Theodore Roosevelt Dam, the U.S. Reclamation Service acquired a system canals and laterals for SRP. While this report focuses on the SRP water delivery system, much of the information is also generic to the irrigation systems throughout Arizona. This context history of the Salt River Project water distribution system is arranged in four parts. The first section details the history of the irrigation system of the Salt River Valley with emphasis on the distribution system. The second piece looks at the various structures and associated works that make up the distribution system. The third section examines the impact of the urban landscape on the water distribution system. The last section contains two case studies examining two laterals and their history.

Water and power are foundational building blocks for the continual development of the greater Phoenix metropolitan area. On March 18, 1911, Theodore Roosevelt Dam was dedicated and the cornerstone was set for dependable water and power to the Salt River Valley. The vital resources from the dam now reliably serve one of the nation’s largest metropolitan areas. Standing for More Than a Century simultaneously celebrates Roosevelt Dam’s centennial and illustrates significant events in the Valley’s and SRP’s history. This book illustrates how Roosevelt Dam and SRP have endured for more than a century and, more importantly, have stood for essential principles during those 100 years of service. Roosevelt Dam stands for reclamation’s prime directive, developing lands by investing in water conservation infrastructure and incorporating power as the paying partner for the investments. The dam represents SRP’s purpose to deliver high-value electricity and water for the benefit of its customers, its shareholders and the communities it serves. Most importantly, Roosevelt Dam and SRP stand for the sustainability of the greater Phoenix metropolitan area in an arid environment. The construction of Roosevelt Dam was well-documented by photographers, engineers and the print media. For decades, the dam and the business of SRP have been featured in local newspapers and other media outlets because of the close ties to agricultural, municipal, commercial and residential interests. From laying the cornerstone of Roosevelt Dam to contracting for wind power, photographs of SRP’s activities have been captured by numerous entities because of SRP’s value to the communities it serves. The photographs in Standing for More Than a Century are the result of numerous SRP photographers past and present who have captured the activities of the organization and the development of the Valley. As those invaluable photographs have aged, the SRP Research Archives Department preserved the historical images and incorporated them into this book. Former and current SRP Research Archives historians share the authorship for each of the events throughout Standing for More Than a Century. In order to bring the photographs and text together in a vibrant way, the book received the creative support of SRP’s cartographers, copy editors, illustrators, and, most important, management and the Board and Council. On behalf of the talented SRP employees who created Standing for More Than a Century, we hope readers enjoy this historical tour as much as we took pleasure in putting it together. Through the ruggedness and beauty of the environment to the vision and wisdom of SRP’s leadership, this book provides a timeless journey into the Valley’s and SRP’s history.

This historical research report is designed to support mitigation for the relocation of Gates 7-13.4-41 and 7-13.4-42 (See Image 1) and Lateral 7-13.4 on the north side of Dobbins Road west of 55th Avenue, Laveen, Maricopa County. This report describes the findings of research into the historic use of the lateral and surrounding area in the south half of Section 5, Township 1 South, Range 2 East. The United States is relocating the lateral and turnout structures in a land exchange because of urban development. This is a memorandum.

In coordination with the Arizona Department of Transportation (ADOT) and the Federal Highway Administration (FHW A), the City of Tempe is planning to construct a six-mile-long multi-use path along alternating banks of the Western Canal. The multi-use path alignment, identified in the Tempe Multi-use Path System Detailed Plan (Plan) prepared in August 2000, will start on the west side of the Loop 101 Freeway halfway between Elliot and Guadalupe Roads and will extend west to the intersection of Priest Road on the north side of Arizona Mills Mall (Figure l ). The Western Canal is within a l 00-foot-wide right-of-way owned by the Bureau of Reclamation (Reclamation) and administered by the Salt River Project (SRP). The multi-use path would require at-grade crossings at Priest Road, Hardy Drive, Baseline Road, Guadalupe Road, Rural Road, and McClintock Drive. The canal and multi-use path are located within the limits of the city of Tempe, Maricopa County, Arizona. The scope of work for this project includes construction of a ten-foot-wide concrete multi-use path with 2-foot-wide decomposed granite shoulders. Placement of lighting fixtures and a steel-driven sheet pile retaining wall to prevent erosion will be determined at a later date during the design process. The project, which will take place on Reclamation lands, is using Congestion Mitigation and Air Quality (CMAQ) funds administered through FHW A It is therefore a federal undertaking that must meet the compliance requirements of Section l 06 of the National Historic Preservation Act. The City of Tempe asked HDR Engineering, Inc. (HDR) to conduct a cultural resources assessment to determine if significant cultural resources will be affected by the project. The Local Government Section of ADOT is coordinating the environmental compliance activities, including cultural resources, on behalf of the City of Tempe. Thus, ADOT will serve as the lead agency for the Section 106 process. The Western Canal right-of-way has been previously surveyed for cultural resources in its entirety (Aguila 1998; Andersen 1990). In addition, numerous surveys, monitoring, and excavation projects have taken place at various locations along and adjacent to the route. As a result, three archaeological sites and several isolated prehistoric canals have been documented in the current project area. The following report summarizes this past work in and adjacent to the current project area and provides management recommendations for the proper treatment of the identified cultural resources. In addition, suggestions for interpretive signs for the multi-use path are provided in Appendix A.

This report presents the results of a Class I cultural resources inventory of nearly 11 miles (mi.) of right-of-way (R/W) owned by the Arizona Department of Transportation (ADOT) along Interstate 10 (I-10) in Maricopa County, Arizona (Figures 1 and 2). Entranco completed the cultural resources inventory for DMJM+HARRIS under Contract No. 00-75, as part of an Environmental Impact Statement (EIS) for the I-10 Corridor Improvement Study. The purpose of the inventory was to determine whether significant cultural resources exist within the project corridor that could be negatively affected by future improvement projects. For purposes of this investigation, the term “cultural resources” refers to prehistoric or historic archaeological sites or objects and potentially significant historic buildings or structures. This project is funded by the Federal Highway Administration (FHWA) and is considered a federal undertaking as defined under 36 CFR § 800.16 (y) (as revised in 1999). ADOT’s Environmental Planning Group is reviewing this project on behalf of the FHWA. An evaluation of Traditional Cultural Properties was not undertaken as part of this investigation. This file contains a draft report.

Archaeological Consulting Services, Ltd. (ACS) conducted a Class III (Intensive), non-collection cultural resources survey on approximately 170 miles of the Arizona, Arizona Crosscut, Grand, Tempe, Tempe Crosscut, Consolidated, Eastern, South, Western, Highline, and Kyrene Branch Canals in Maricopa County, Arizona. The survey was undertaken at the request of Jon S. Czaplicki, U.S. Bureau of Reclamation (Reclamation) archaeologist and Contracting Officer's Technical Representative for Contract No.1425-2-CS-01820. The canals, which are owned by the federal government, are under the jurisdiction of Reclamation and are maintained and operated by the Salt River Project (SRP). The survey was performed to provide an inventory and assessment of cultural resources located within or immediately adjacent to the canals' right-of-way which may be impacted by future development. The work was conducted under authorization from the SRP and Reclamation. A portion of the Arizona Canal right-of-way from Granite Reef Dam to Pima Road is situated within the Salt River Pima-Maricopa Indian Community (SRPMIC) and was surveyed under SRPMIC Archaeological Permit dated October 29, 1996. A portion on the northern side of the South Canal right-of-way from Granite Reef Dam to the branch with the Eastern Canal was surveyed under SRPMIC Archaeological Permit dated November 12, 1996. Letter authorization from Barry W. Welch, acting Area Director of the Bureau of Indian Affairs (BIA) dated November 15,1996, granted permission to conduct non-collection survey on tribal lands under the Federal Archaeological Resources Protection Act (ARPA). The southernmost 4 miles of the Eastern Canal are under the jurisdiction of the Roosevelt Water Control District (RWCD) and were surveyed under a verbal authorization from Mr. Joe Nykas, RWCD field superintendent. The survey located 21 prehistoric sites, 2 historic properties, 1 possible prehistoric canal segment, 2 historic canal segments,and 59 isolated occurrences. Of the sites, 19 were previously recorded.

The document presents the results of archaeological monitoring at the Salt River Project (SRP) Lassen Substation in Tempe, Maricopa County, Arizona. The work was conducted by Northland Research, Inc. for SRP and entailed monitoring for their expansion of utility lines along the Western Canal beginning at Lassen Substation. The project area is located within La Ciudad de Los Hornos (Los Hornos), a Hohokam site. Lassen Substation is on land owned by SRP; the Western Canal and right-of-way is owned by the U.S. Bureau of Reclamation, but maintained and operated by SRP. Archaeological monitoring was performed from January 24 through February 10, 1995. Three archaeological features were encountered: a pithouse, a midden, and a canal (possibly historic). These features, observed only in trench profile, were recorded through profile drawings, photographs, and artifact collections. No human remains were encountered. As the trenching has been completed and all archaeological remains have been documented, no further work is deemed necessary at this time.

Together, Historic American Engineering Records (HAER) Nos. AZ-22 and AZ-23 present a written historical summary and relevant historical documentation about the construction and use of the Western Canal and the Highline Canal, which are waterways that serve Mesa, Chandler, Tempe, and parts of south Phoenix, Arizona on the south side of the Salt River. This report, Historic American Engineering Record (HAER) No. AZ-22, presents a narrative history of both canals and their infrastructure features. It also includes photographs, drawings, and maps of the Western Canal. HAER AZ-23 (see https://core.tdar.org/document/393530) presents photographs, drawings, and maps of the Highline Canal. The Western Canal provides water for agricultural, industrial, and municipal uses to portions of eastern Mesa, south Tempe, and south Phoenix, near the base of the Salt River (South) Mountains. The construction of the canal resulted from the Reclamation Service's inability to purchase the Tempe Canal, in an effort to improve drainage for south Tempe agricultural fields. From 1911 to 1912, Reclamation worked to connect feeders from the Consolidated Canal in Mesa (the Peck, Wallace, and Pine Feeders) to the Kyrene Branch Canal in south Tempe and the Wormser Branch Canal in south Phoenix. After a funding delay, the Western Canal Company completed construction under Reclamation's supervision. Simultaneously, in 1912, the Highline Canal Construction Company formed to build and mange a canal that would deliver water to agricultural interests and residents on the southern and eastern slopes of the Salt River (South) Mountains. From 1912 to 1914, the company constructed the Highline Canal and Pump. Both the Western and Highline Canals continue to supply water to the southeastern portions of the Salt River Valley, and are long-standing features on the landscape. The canal right-of-ways have also been transformed into recreational spaces, which include bike and pedestrian trails and canal-side parks.

Archaeological test excavations have been conducted at a portion of La Ciudad de los Hornos (AZ U:9:71 (ASM)), a prehistoric multicomponent Hohokam village. The field work for this project, sponsored by AMCOR Investment Company, was undertaken during the fall of 1989 by Northland Research, Inc. pursuant to the proposed redevelopment of the Casa Fiesta trailer park. The Casa Fiesta project area consists of a 55-acre (22-ha), triangular lot. Archaeological testing consisted of cutting a series of backhoe trenches, resulting in the excavation of 9,442 ft. (2,878 m, 221 trenches) of trench or a roughly one percent sample of the project area. Thirty-seven prehistoric cultural features were identified. The remains represent a Hohokam occupation dating primarily to the Sedentary and Classic periods. Although the Casa Fiesta project area has been subject to a great deal of disturbance by agricultural and construction activities, the cultural features identified do not appear to have been impacted substantially by these activitites, but instead are fairly intact. With the possible exception of hornos and a few surfaces, most features appear not to have been truncated by agricultural activities. Testing results suggest that there is a great potential for these features and as yet unidentified features to yield data significant to the interpretation of Hohokam habitation and subsistence practices during the late Sedentary and Classic periods. This report includes contributions by Jennifer W. Gish, T. Kathleen Henderson, and Johna Hutira.

Archaeological Consulting Services, Ltd. (ACS) monitored the excavation of an 11.73 mi (18.88 km) long trench for the El Paso Natural Gas (EPNG) pipeline in the cities of Mesa, Tempe, and Chandler. Archaeological monitoring was recommended because of the likelihood of crosscutting prehistoric irrigation canals and the close proximity of Alta Vista, a prehistoric Hohokam habitation site (AZ U:9:48 (ASM)). The monitoring was conducted in order to document these cultural resources when they became exposed in the pipeline trench. A total of seven canals and six subsurface features were revealed in the pipeline trench. Two additional canals were identified in a sewer trench that was open at the time of the EPNG monitoring and that abutted the EPNG line. The file includes a copies of Linda Scott Cumming's Pollen Analysis of Three Canals on the El Paso Natural Gas (EPNG) Project and Manuel R. Palacios-Fest's Report on Nonmarine Ostracodes from El Paso Natural Gas (EPNG) Project, Tempe, Arizona, as appendices.

When the Salt River Project (SRP) decided to build the Lassen Substation (LSS) along the Western Canal just east of Priest Drive in Tempe, they determined to recover the significant archaeological resources that would otherwise be impacted. Thus a 2-ac parcel of the Hohokam village site known as La Ciudad de Los Hornos was excavated in 1988 by Archaeological Consulting Services (ACS); 195 cultural features were recorded. SRP also contracted with the present authors to write an overview of previous archaeological work at Los Hornos and to interpret its community patterns during the millennium of Hohokam occupation. This study would thus provide a model of the larger cultural context of the SRPLSS/ACS 2-ac sample from a site that encompasses approximately 450 ac.