 |
Water valve box cover at Huntington Beach, CA. Photo date July 2010.
Source: Jon Schladweiler, Historian, Arizona Water Association. |
|
 |
Sewer manhole cover (dated 1941), San Diego (Old Town area), CA. Photo date July 2010.
Source: Jon Schladweiler, Historian, Arizona Water Association. |
|
 |
Cast iron rim and cover assembly for a gas valve – San Diego Gas and Electric Co., San Diego (Old Town area), CA. Photo date July 2010.
Source: Jon Schladweiler, Historian, Arizona Water Association. |
|
 |
Sewer cleanout cover (precast concrete) in San Diego (Shelter Island area), CA. Photo date July 2010.
Source: Jon Schladweiler, Historian, Arizona Water Association. |
|
 |
Manhole cover, Grand Central Market, Los Angeles, California. Text reads "under your souls - 38,753 streets." Photo date 2001.
Source: Steve Harding, Pima County Wastewater Management Department, Tucson, Arizona. |
|
 |
Manhole cover, San Diego, California. Photo date 1995.
Source: Pima County Wastewater Management Department, Tucson, Arizona. |
|
 |
Manhole cover, San Diego, California. Photo date 1995.
Source: Pima County Wastewater Management Department, Tucson, Arizona. |
|
 |
Manhole cover, San Diego, California. Curb warning reads "No dumping - I live downstream." Photo date 1995.
Source: Pima County Wastewater Management Department, Tucson, Arizona. |
|
 |
Manhole cover, San Diego County, California, dated 1960. Photo date 2003.
Source: Jon Schladweiler, Pima County Wastewater Management Department, Tucson, Arizona. |
|
 |
Manhole cover, Solana Beach, California, dated 1950. Photo date 2003.
Source: Jon Schladweiler, Pima County Wastewater Management Department, Tucson, Arizona. |
|
 |
Manhole cover, Solana Beach, California. Photo date 2003.
Source: Jon Schladweiler, Pima County Wastewater Management Department, Tucson, Arizona. |
|
 |
Manhole cover, Del Mar, California. Photo date 2003.
Source: Jon C. Schladweiler, Pima County Wastewater Management Department. |
|
 |
Oval-shaped clean-out cover, Del Mar, California. Photo date 2003.
Source: Jon C. Schladweiler, Pima County Wastewater Management Department. |
|
|
|
 |
Manhole cover, Washington, D.C., cast in 1901. Photo date 1997.
Source: Pima County Wastewater Management Department, Tucson, Arizona. |
|
