Il Territorio del Torrente Lura. La riqualificazione partecipata di una valleIniziativa 21058
La visione d'insieme supera i confini locali e attrivuisce al corso d'acqua principale e al suo bacino composto da spazi aperti naturali e agricoli, dal reticolo superficiale, dal sistema di raccolta e depurazione delle acque il ruolo di nuova infrastruttura territroriale." [Una visione al futuro per la Valle del Lura]
Il Progetto di Sottobacino del Lura descritto nelle pagine di questa pubblicazione (cfr art.55 bis della Legge 12/2005) rappresenta il primo e fondamentale risultato di un processo di co-pianificazione e integrazione di politiche sviluppate nella riqualificazione del bacino del torrente Lura.
This document provides information on infiltration rain gardens, including:
- Infiltration rain gardens are landscaped areas designed to temporarily pond and infiltrate stormwater runoff from roofs or pavement.
- They are sized to treat 10-20% of the upstream impervious area, commonly treating 250 square meters of impervious area with a 50 square meter garden.
- Design guidelines address pretreatment, dimensions, ponding depth and drawdown time, soil depth, outlets and overflows.
- Specifications are provided for materials like drainage rock, pipe, geosynthetics and growing medium.
Non Stormwater Treatment System Designmatthromatka
This conceptual design report proposes a storm water run-on bypass and temporary treatment system for tunnel excavation during the Caldecott Tunnel Project in Alameda and Contra Costa Counties, California. The system is needed to treat groundwater and storm water inflows during tunnel excavation in accordance with NPDES permit requirements. The proposed system includes pretreatment, pH adjustment, coagulation, filtration, and backwash water treatment to remove pollutants before discharging to San Pablo Creek. Monitoring and control systems will also be included to ensure effluent meets water quality standards.
The document provides guidance on best management practices for construction site stormwater pollution prevention. It discusses developing a Stormwater Pollution Prevention Plan and selecting temporary soil stabilization, sediment control, wind erosion control, tracking control, non-stormwater management, and waste management BMPs. Example BMPs included are silt fences, sediment traps, soil binders, stabilized construction entrances, concrete waste management, and material delivery and storage.
Technical Presentation explaining how siphonic (syphonic) drainage works and benefits from using this efficient roof drainage system.
Contact info@hydromax.com for further information.
Design of Effective Stormwater Treatment Systems for Water Qualitystrinkaus
This document discusses assessing pollutant loads from land development projects and designing effective stormwater treatment systems. It highlights current local focus on controlling peak flows rather than water quality. Various methods for assessing pollutant loads are presented, including the Simple Method equation. Key considerations for bioretention systems, infiltration basins, wetlands, swales, and ponds are outlined. Common design flaws are shown, emphasizing the importance of proper sizing, soil mix, and construction.
The document provides a geotechnical baseline report for the Caldecott Improvement Project's Fourth Bore tunnel (Bore No. 4) in California. It summarizes that Bore No. 4 will be constructed through sedimentary and volcanic rock formations between 13-8 million years old, including the Sobrante Formation, Claremont Formation, and Orinda Formation. The tunnel alignment crosses a seismically active region with major faults like the Hayward fault nearby. The report establishes ground classes that describe anticipated tunnel ground conditions to aid tunnel construction.
Il Territorio del Torrente Lura. La riqualificazione partecipata di una valleIniziativa 21058
La visione d'insieme supera i confini locali e attrivuisce al corso d'acqua principale e al suo bacino composto da spazi aperti naturali e agricoli, dal reticolo superficiale, dal sistema di raccolta e depurazione delle acque il ruolo di nuova infrastruttura territroriale." [Una visione al futuro per la Valle del Lura]
Il Progetto di Sottobacino del Lura descritto nelle pagine di questa pubblicazione (cfr art.55 bis della Legge 12/2005) rappresenta il primo e fondamentale risultato di un processo di co-pianificazione e integrazione di politiche sviluppate nella riqualificazione del bacino del torrente Lura.
This document provides information on infiltration rain gardens, including:
- Infiltration rain gardens are landscaped areas designed to temporarily pond and infiltrate stormwater runoff from roofs or pavement.
- They are sized to treat 10-20% of the upstream impervious area, commonly treating 250 square meters of impervious area with a 50 square meter garden.
- Design guidelines address pretreatment, dimensions, ponding depth and drawdown time, soil depth, outlets and overflows.
- Specifications are provided for materials like drainage rock, pipe, geosynthetics and growing medium.
Non Stormwater Treatment System Designmatthromatka
This conceptual design report proposes a storm water run-on bypass and temporary treatment system for tunnel excavation during the Caldecott Tunnel Project in Alameda and Contra Costa Counties, California. The system is needed to treat groundwater and storm water inflows during tunnel excavation in accordance with NPDES permit requirements. The proposed system includes pretreatment, pH adjustment, coagulation, filtration, and backwash water treatment to remove pollutants before discharging to San Pablo Creek. Monitoring and control systems will also be included to ensure effluent meets water quality standards.
The document provides guidance on best management practices for construction site stormwater pollution prevention. It discusses developing a Stormwater Pollution Prevention Plan and selecting temporary soil stabilization, sediment control, wind erosion control, tracking control, non-stormwater management, and waste management BMPs. Example BMPs included are silt fences, sediment traps, soil binders, stabilized construction entrances, concrete waste management, and material delivery and storage.
Technical Presentation explaining how siphonic (syphonic) drainage works and benefits from using this efficient roof drainage system.
Contact info@hydromax.com for further information.
Design of Effective Stormwater Treatment Systems for Water Qualitystrinkaus
This document discusses assessing pollutant loads from land development projects and designing effective stormwater treatment systems. It highlights current local focus on controlling peak flows rather than water quality. Various methods for assessing pollutant loads are presented, including the Simple Method equation. Key considerations for bioretention systems, infiltration basins, wetlands, swales, and ponds are outlined. Common design flaws are shown, emphasizing the importance of proper sizing, soil mix, and construction.
The document provides a geotechnical baseline report for the Caldecott Improvement Project's Fourth Bore tunnel (Bore No. 4) in California. It summarizes that Bore No. 4 will be constructed through sedimentary and volcanic rock formations between 13-8 million years old, including the Sobrante Formation, Claremont Formation, and Orinda Formation. The tunnel alignment crosses a seismically active region with major faults like the Hayward fault nearby. The report establishes ground classes that describe anticipated tunnel ground conditions to aid tunnel construction.
This document provides wage rates for construction projects in California. It lists rates for various construction types including building, heavy construction, highway construction, and dredging projects. The rates are broken down by county and cover occupations such as asbestos workers, boilermakers, bricklayers, carpenters, divers, electricians, modular furniture installers, sound and communication technicians, and terrazzo workers. The document was last modified on May 8, 2009 and provides an overview of construction wage rates across multiple northern and central California counties.
This document is an addendum to the contract for a highway construction project in Alameda and Contra Costa Counties in California. It provides revisions to various project plans, specifications, and documents. Key revisions include changing the maximum number of working days from 1,450 to 1,550, revising closure schedules and requirements, and adding provisions for safety training, water pollution control, and maintaining traffic. The addendum provides updated or new project information to incorporate into the contract for the highway construction work.
This document is an addendum issued by the California Department of Transportation regarding construction work on a state highway between Alameda and Contra Costa counties. It notifies contractors that the bid opening date has been changed from August 11, 2009 to September 16, 2009. It instructs contractors to consider the addendum fully when submitting bids and to acknowledge receipt of the addendum in their bid paperwork. The addendum is being distributed to all known holders of bid documents by fax and email.
This document provides revisions to plans and specifications for a highway construction project in Alameda and Contra Costa Counties, California. It revises several project plan sheets and sections of the special provisions related to sound control requirements, construction area signs, maintaining traffic, watering, radio systems, and the bid item list. A mandatory pre-bid meeting is also added to the special provisions. The bid opening date remains August 11, 2009.
This document is a notice to bidders for a highway construction project on Route 24 in Alameda and Contra Costa Counties from East Temescal Separation to 0.8 km east of Gateway Blvd. It provides special provisions that modify the standard specifications for the project, including requirements for disadvantaged business enterprises, contract execution, environmental protections, traffic control, and construction details. It contains tables of contents, lists of contents to be included in the bid, and summaries of changes made to standard specifications and processes for this project.
This document provides wage rates for construction projects in California. It lists rates for various construction types including building, heavy construction, highway construction, and dredging projects. The rates are broken down by county and cover occupations such as asbestos workers, boilermakers, bricklayers, carpenters, divers, electricians, modular furniture installers, sound and communication technicians, and terrazzo workers. The document was last modified on May 8, 2009 and provides an overview of construction wage rates across multiple northern and central California counties.
This document is an addendum to the contract for a highway construction project in Alameda and Contra Costa Counties in California. It provides revisions to various project plans, specifications, and documents. Key revisions include changing the maximum number of working days from 1,450 to 1,550, revising closure schedules and requirements, and adding provisions for safety training, water pollution control, and maintaining traffic. The addendum provides updated or new project information to incorporate into the contract for the highway construction work.
This document is an addendum issued by the California Department of Transportation regarding construction work on a state highway between Alameda and Contra Costa counties. It notifies contractors that the bid opening date has been changed from August 11, 2009 to September 16, 2009. It instructs contractors to consider the addendum fully when submitting bids and to acknowledge receipt of the addendum in their bid paperwork. The addendum is being distributed to all known holders of bid documents by fax and email.
This document provides revisions to plans and specifications for a highway construction project in Alameda and Contra Costa Counties, California. It revises several project plan sheets and sections of the special provisions related to sound control requirements, construction area signs, maintaining traffic, watering, radio systems, and the bid item list. A mandatory pre-bid meeting is also added to the special provisions. The bid opening date remains August 11, 2009.
This document is a notice to bidders for a highway construction project on Route 24 in Alameda and Contra Costa Counties from East Temescal Separation to 0.8 km east of Gateway Blvd. It provides special provisions that modify the standard specifications for the project, including requirements for disadvantaged business enterprises, contract execution, environmental protections, traffic control, and construction details. It contains tables of contents, lists of contents to be included in the bid, and summaries of changes made to standard specifications and processes for this project.