An Evaluation of Trenchless Construction Crossings in San Diego County and Future Crossing for the City of San Diego Water Department

2001 ◽  
Author(s):  
Charlene K. Dennis ◽  
Jon Y. Kaneshiro ◽  
Oscar A. Khoury ◽  
George S. Freiha
Keyword(s):  
San Diego ◽  
San Diego County ◽  
Trenchless Construction ◽  
The City

An Archaeological Survey of San Vicente Lake Bed, San Diego County, California

1945 ◽  
Vol 10 (3) ◽  
pp. 255-264
Author(s):  
B. E. McCown
Keyword(s):  
Water Resources ◽  
San Diego ◽  
San Diego County ◽  
Archaeological Survey ◽  
Coast Range ◽  
The Village ◽  
The City

San Vicente Lake is being formed by a dam across San Vicente Creek four miles north of the village of Lakeside, California. The dam is being constructed by the Water Department of the City of San Diego as a unit of its broad plan to develop the water resources of the adjacent Coast Range. The waters of the lake, which are now rising rapidly, cover a very beautiful valley. The surrounding mountains, covered with massive granite boulders, create a picturesque setting.

scholarly journals First Report of Uromyces transversalis, Causal Agent of Gladiolus Rust, in San Diego County, California

Plant Disease ◽  
2007 ◽  
Vol 91 (9) ◽  
pp. 1202-1202 ◽  
Author(s):  
C. L. Blomquist ◽  
S. L. Thomas ◽  
J. M. McKemy ◽  
P. A. Nolan ◽  
M. Luque-Williams
Keyword(s):  
San Diego ◽  
Signs And Symptoms ◽  
The United States ◽  
San Diego County ◽  
Home Garden ◽  
Rust Disease ◽  
Bright Orange ◽  
Local Farmer ◽  
The City ◽  
Mycology Laboratory

In May 2006, signs and symptoms of a rust disease were observed on hybrid gladiolus plants in a home garden located in the city of San Diego, CA. Uredinial lesions were bright orange, variable in shape from globose to oval to transversely elongate, and measured 28 to 652 × 36 to 994 μm. Urediniospores measured 16 to 26 × 16 to 23 μm and had hyaline walls that were 2 μm thick and finely echinulate with recurved spines. Some uredinial lesions located primarily at the base of the leaves were surrounded by dark, irregular lesions (telia) by the epidermis. Telia contained nonseptate, light-to-chestnut brown teliospores that measured 20 to 30 × 13 to 20 μm with an apical thickening measuring 2 to 5 μm. Teliospore pedicels measured 3 to 33 × 2 to 5 μm. Groups of teliospores were separated into locules by upright, pale brown paraphyses. The rust was identified as Uromyces transversalis, the cause of gladiolus rust and a quarantine pest for the United States. An intensive 23 square mile survey was initiated and resulted in the detection of infected plants at one nearby residence 200 feet away, in a commercial nursery six miles east of the initial site of detection, and at a residence across the street from the infected nursery. Plants in the nursery were grown outdoors in three blocks, in which the disease incidences were 20, 80, and 100% with varying levels of severity. Telia were also found at this location. The nursery grows gladiolus flowers for sale at local farmer markets, sometimes supplemented by additional cut gladiolus from Mexico. U. transversalis is known to occur in Mexico (2). This rust is under eradication at all four sites. Gladiolus rust was reported in Florida in April 2006. To our knowledge, this is the first confirmed report of Gladiolus rust in California. References: (1) J. R. Hernández. Invasive Fungi. Gladiolus Rust. Systemic Botany and Mycology Laboratory, Online publication. ARS, USDA, 2004. (2) G. Rodríguez-Alvarado et al. Plant Dis. 90:687, 2006.

scholarly journals El papel de las redes de caminos en los desplazamientos laborales trasfronterizos de Tijuana a San Diego

2015 ◽  
Vol 27 (64) ◽  
Author(s):  
Alejandro Mungaray Moctezuma ◽  
José María Ureña Francés
Keyword(s):  
San Diego ◽  
Urban Community ◽  
Population Sample ◽  
Transportation Systems ◽  
San Diego County ◽  
La Red ◽  
The City

A través de una encuesta realizada en once secciones de Tijuana y una muestra representativa de su población total, que incluye a aquélla con empleo en ciudades del condado de San Diego, se analiza la red binacional y los desplazamientos laborales a través de sus principales puertos de acceso fronterizo. Se concluye que en el lado mexicano, la mayoría de los puntos de partida de los trabajadores trasfronterizos se ubica cerca de dichos puertos, y que la mayor parte de los sitios de trabajo del lado estadounidense se concentran en cinco municipios próximos a la frontera. La red es eficiente al permitir que las distancias entre ambos lados, incluso las pautas en los puentes sean accesibles tanto para peatones, que utilizan los sistemas de trasporte colectivo estadounidense y que laboran cerca de la frontera, como para quienes usan sus vehículos particulares, para acudir a lugares más lejanos. AbstractA survey was applied to 11 urban community sectors and one representative population sample from the city of Tijuana regarding border employment in cities within San Diego County, in order to study commuting phenomena via the main border ports of entry (BPE). It was concluded that most employees reside near the BPE, and the majority of workplaces are concentrated in five cities close to the border. The network commuters use to access their workplaces is efficient and includes pedestrians who use the collective transportation systems on the U. S. side to reach workplaces close to the border, to commuters who use vehicles to get to workplaces located farther away.

Preliminary Image Map of the 2007 Witch and Poomacha Fire Perimeters, Rodriguez Mountain Quadrangle, San Diego County, California

2008 ◽  
Author(s):  
Perry S. Clark ◽  
Wendy S. Scratch ◽  
Gaylord W. Bias ◽  
Gregory B. Stander ◽  
Jenne L. Sexton ◽  
...  
Keyword(s):  
San Diego ◽  
San Diego County
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