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Letter from Carl Hayden to W. W. Bass informing him that his contribution for maintaining the roads at the Grand Canyon has been reduced to $50 per year. Hayden also notes that no further action on national park status will be taken until December 1917 during the regular session of congress.
Letter from attorney Thomas J. Croff to Carl Hayden informing him of the Atchison, Topeka, and Santa Fe railroad company's ownership of land inside the proposed national park boundaries.
Letter from Carl Hayden to C. T. Woolfolk thanking him for his support on the proposed bill. Hayden writes that the bill will not be introduced into the current session of Congress as any new legislation would be impossible to pass, but he is optimistic over the bill's future.
The objective of this Technical Data Notebook is to provide 100-yr peak discharges at a Concentration Point for the Unnamed 02 and 03 Washes, 100-yr floodplain boundary and erosion hazard information, using the most up-to-date topographic, hydrologic, and hydraulic data. This is a local study and has not been submitted to FEMA.
The objective of this Technical Data Notebook is to provide 100-yr peak discharges at Concentration Points for the Unnamed Wash 12, 100-yr floodplain boundary and erosion hazard information, using the most up-to-date topographic, hydrologic, and hydraulic data.
This Technical Data notebook has been prepared to study a portion of the Pegler Wash located in Pima County, Arizona. The objective of the TDN is provide regulatory discharge rates and floodplain limits along the Pegler Wash using better topographic, hydrologic, and hydraulic data.
This Technical Data Notebook has been prepared in support of a Letter of Map Revision submittal to amend the 100-year floodplain, or Special Flood Hazard Area associated with Finger Rock Wash in Pima County, Arizona. The purpose of this LOMR application is to revise the effective Flood Insurance Rate Map SFHA boundaries based on updated and more detailed information. No new hydraulic structures are present within the study limits.
This report documents the existing drainage conditions related to Silverbell Trails Estates roadways and 100-year flow depths and includes qualitative and quantitative analyses of the existing hydrologic and hydraulic conditions.
The purpose of this study is to determine the hydrologic and hydraulic impacts of the Aspen Fire of the summer of 2003 on the Sabino Canyon and Carter Canyon watersheds, which are in the vicinity of the Town of Summerhaven, located on Mount Lemmon in the Santa Catalina Mountains, Arizona.