Data Collection Report - Flood Control District of Maricopa County

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TransportationThe I-10 Papago Freeway and the I-17 Black Canyon Freeway are bothlimited access highways which form the boundaries of the study area.The I-17 Black Canyon Freeway, the east boundary is a depressedfreeway section with interchanges in the vicinity of Grant Street andAdams Street. The I-10 transitions from an elevated freeway section atthe east side of the study area at 27th Avenue to a depressed sectionfrom 35th Avenue to 91st Avenue and then west of 91st Avenue thefreeway transitions back to an elevated section. Exits to the study areaoccur at 35th, 43rd, 51st, 59th, 67th, 75th, 83rd, 91st, 99th, and 115thAvenues. In addition there is a Park’n’Ride Lot located at the 79thAvenue off ramp.of the Buckeye Road alignment to a bridge over the Agua Fria on thewest boundary of the study area. The existence of the railroad line andits spurs has been a major factor in the development and growth ofindustrial land use in this area.Topography / Land FormThe Durango Study Area is relatively flat with a general slope towardsthe south and west. There is no significant land form within the studyarea itself however subtle changes of grade are evident in somelocations. A low area exists in the southwest corner of the study area.The flat terrain of the Durango area itself provides a sharp contrast tothe dramatic topography of the adjacent Estrella Mountains.varieties are typically found only at the homestead locations. There arehowever a few instances such as the area around 91st Avenue and LowerBuckeye where formal continuous wind rows of Pecan Trees edge thecrop areas. These large mature canopy trees form a very distinctivelandcape treatment for this area.Pecan Trees - 91stAvenue and LowerBuckeyeOther major roadways within the study area tie into the regional andmetropolitan roadway system with their general layout being on a onemile grid. Major east-west routes are Southern, Broadway, LowerBuckeye, Buckeye (State Route 85 - regional connector to California)and Van Buren. Major north south routes are 27th, 35th, 43rd, 51st,59th, 67th, 75th, 83rd, 91st, 99th, 107th, 115th, and El Mirage Roads.There is also a proposed South Mountain Freeway alignment whichtraverses the Durango Study Area in the vicinity of 59th and 51stAvenues. This planned Freeway section incorporates parkwayenhancement, landscape enhancement, and multi-use recreational trailsinto the design. This freeway section is currently unfunded.The Southern Pacific Railroad forms an east west corridor. The railroadline is located between Buckeye Road and Van Buren Street from theeast boundary of the study area to approximately one half mile west of99th Avenue where the line turns to the south and follows the north sideSome specific features within the study area display a grade differentialfrom surrounding lands. The Southern Pacific Railroad and BuckeyeFeeder Canal are both elevated linear features and are typicallyapproximately three to four feet above adjacent areas.VegetationThe majority of the Durango Study Area represents a landscape whichhas been heavily modified by man. Very little of the natural vegetationis in evidence. In many areas such as along the Salt and Gila Rivers theSalt Cedar has become established and is dominant. Some pockets of thenative Cottonwood Willow plant association can be seen in the floodplain and low areas of the Salt and Gila Rivers and adjacent areas.Similarly, there are only a few remote upland areas with characteristicDesert Scrub landscapes - Mesquite, Palo Verde, Saltbush, and Bursage.The agricultural areas are sparsely vegetated if at all other than thevarious crops themselves. Concentrations of larger trees of mixedLandscapes in the developed areas are mixed and varied. There is nosingle dominant theme. Plant palettes include both a “Sonoran DesertTheme” which utilizes more indigenous and arid region, desert varietyplant materials such as Mesquite, Palo Verde, and Acacia and a“Mediterranean Theme” which features species such as Bougainvillea,Palms, Oleander, and Ash. Many of the older areas within the study areaappear to represent the “Mediterranean theme” while the newerdevelopments typically feature more of a “Sonoran Desert Theme”HistoryThe prehistory and history of the Durango Study area is rich and varied.With its proximity to the rivers and relatively flat topography, the areahas proven to be conducive to the development of early townships whicheventually has led to a number of significant historical innovations. Thearea has featured Hohokam civilizations, early agriculture, early canals,irrigation and water companies, homesteaders, early surveyors,DIBBLE & ASSOCIATES 21 DURANGO ADMPDATA COLLECTION REPORT
construction of early railways and highways, WWI era cotton productionand WWII era defense plants. See Section V of this report for a moredetailed prehistorical and historical overview of the Study area. Thehistory of the area has the potential to influence the design in a numberof ways including the layout of the facilities; the type, design, and themeof proposed amenities; design details and materials; and by offeringnumerous subject material for potential public education opportunities.E. Visual Resources AssessmentThe Visual Resources Assessment is based on the evaluation of existinglandscape character, scenic quality, visual integrity, and future desiredlandscape character for the study area.DefinitionsLandscape Character is expressed in terms of Landscape CharacterUnits. A Landscape Character Unit is an area of land that has commondistinguishing visual characteristics. Distinguishing visual characteristicsmay be natural features such as landform, rock formations, water forms,vegetative patterns or man made / cultural features such as land use,building or structure types, scale and / or density. (Figure IV-2)Scenic quality is defined as the distinctiveness, visual dominance (scale,color, form), or variety of features within an area. Features of highscenic quality are distinctive or unique and should be protected.Opportunities to improve scenic quality represents opportunities toincrease variety or enhance landscapes low in diversity. Scenic qualityfor the project areas is evaluated in relative terms. In analyzing thescenic quality, natural and cultural features are studied taking intoconsideration the degree of variety or uniqueness of landscape features.( Figure IV-3).General AssessmentGenerally older developed areas within the study area are low in scenicquality and visual integrity. There is low visual interest, little continuityor harmony of elements and no strong unifying elements. These areasare characterized by sparse or no landscaping, large amounts ofhardscape, chain link fencing, and lack of screening of objectionableviews.Newer developments with more restrictive landscape requirements havemuch improved scenic quality and visual integrity, however are notparticularly distinctive. Newer developments incorporate a largerpercentage of landscape area and typically feature perimeter landscapebuffers, screen walls, a unified palette of materials.Overall agricultural areas are generally medium to high in scenic quality.The open feel of this area is unique and views of the adjacent EstrellaMountains and South Mountains to the south and White TankMountains to the north are distinctive and impressive.River areas have the highest potential for scenic quality as they featurean environment relatively unique to the Sonoran Desert.Visual integrity is defined as the degree of harmony among the featuresof an area with regards to line, color, form, texture, landform,vegetation, architectural features, and streetscape. Opportunities toincrease visual integrity represents opportunities to harmonize discordantfeatures.DIBBLE & ASSOCIATES 22 DURANGO ADMPDATA COLLECTION REPORT
Page 2 and 3: Durango Area Drainage Master PlanDa
Page 4 and 5: Durango Area Drainage Master PlanDa
Page 7 and 8: II. DATA COLLECTION RESULTSA. Exist
Page 9 and 10: multiple use benefits to the commun
Page 18 and 19: III. INITIAL HYDROLOGY REPORTA. Int
Page 21 and 22: IV. LANDSCAPE AESTHETICS & MULTI-US
Page 26 and 27: Existing Landscape Character UnitsA
Page 28 and 29: Residential P.A.D. UnitDescriptionT
Page 30: Scenic QualityScenic quality of the
Page 35: Future Desired Landscape CharacterA
Page 39 and 40: R1WR1ER1ER2E040302#0106050403 02010
Page 41 and 42: upstream, and downstream of the con
Page 43 and 44: upper and lower Salt and Verde rive
Page 45 and 46: introduced populations exist in Mar
Page 47 and 48: B. Historical and Pre-Historical Th
Page 50 and 51: Settlement Patterns and Site Develo
Page 52 and 53: R1WR1ER1ER2E0403020106050403 020106
Page 54 and 55: the Salt River valley and filled th
Page 56 and 57: 1922 map, Buckeye Road is shown as
Page 58 and 59: D. Social and Economic AssessmentTh
Page 60 and 61: According to the U.S. Census Bureau
Page 62 and 63: Table V-4. Block Groups With Signif
Page 64 and 65: E. Hazardous Waste InventoryThe eff
Page 66 and 67: System), PADS, RCRA-J (medical wast
Page 68 and 69: #####R1W R1E R1E R2E0302010605##04#
Page 70 and 71: VI. PLAN SET BIBLIOGRAPHYArizona De
Page 72 and 73: VII. REPORT BIBLIOGRAPHY & REFERENC
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1993 The Promotion of Phoenix. In P
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1985-88 The 1982-1984 Excavations a
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CURRENT AND PROPOSED DEVELOPMENTSDe
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STORM COMPARISON TABLES
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Storm ComparisonSTATIONSUBGAPEAKFLO
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WILDLIFE OBSERVED IN THE DURANGO DR
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Data Collection Report - Flood Control District of Maricopa County

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