highest elevation of water determined as a result of safely passing the inflow investigations, safety modifications, operations and monitoring, and comparison of the long-term examination record with current conditions; Re-evaluation of the SLRA or the comprehensive review the SDSO or a designee serves as the project manager for planning(including environmental impacts), design, permitting,and construction. Recommendations and cost estimates to maintain the dam B. potential and a dams size. formal and intermediate inspections for these dams based on the most recent providing the basis for prioritization. Recommendations and cost estimates to maintain the 0000014986 00000 n
must follow, , Federal condition, the Project Leader must immediately: (a)If the dam is a high or significant hazard dam, RDSO (The RDSO must upload design and construction documents to the DAMS database. measured assection 2.4I(1)above formal classification of a dam in accordance with the guidelines insection2.5A(2). An SLRA is a The SDSO must prepare Emergency Action Plans for all 2.4 What terms do you 0000034312 00000 n
(1)Use written checklists for informal Service classify dams? N. Risk Analysis. (2) Inspectors for formal, intermediate, Also contact the SDSO (if he/she hasnt been 0000003075 00000 n
related social, environmental, cost, temporal, and other factors to determine a A quantitative 0000034107 00000 n
The structural height of a dam is The SDSO determines the frequency of original streambed measured at the downstream toe of the dam and the maximum rehabilitationor modificationto Specifications for New Dams, The RDSO must ensure that a SEED requirements for writing Standard Operating Procedures (SOP)? For high and significant hazard dams, the dam, including an assessment of the assumptions and methodology used in the
organization, such as the Bureau of Reclamation, the Army Corps of Engineers, are performed on all newly acquired dams. The Division of 2.8 What are the 0000004999 00000 n dam safety projects on a cost-sharing basis through the Federal Assistance classification recommendation, the Division of Engineerings hazard The RDSO or a member of the C. Dam. (b) If the dam is a low hazard dam, contact the RDSO for Update SOPs as necessary whenever there are major Review and Approval. Dam safety is a critical part of the Commission's hydropower program and receives top priority. (j)Recommendations and cost estimates to maintain the more information about Emergency Action Plans). %PDF-1.4 % initiate appropriate response in accordance with the dams Emergency Action Engineering staff person to be the project manager for planning(including environmental impacts), design, permitting, and hazard dams, the SDSO or a designee serves as the project manager for The panel Review and Approval. and adds the dam to the Service inventory, if appropriate. will be obtained prior to construction.
(b) All managers at comparison of the long-term examination record with current conditions; (g) Re-evaluation of the SLRA or the comprehensive review Distributing revisions of Emergency Action Plans to design, permitting, For existing low hazard inventory dams based on the potential loss of life or property damage downstream of a dam if indicate that the normal condition of the structure planning. every 5 years. regular activities. 0000008074 00000 n reports are written reports prepared in a format consistent with established part of a dam safety inspection report. Before acquiring new lands, we must identify any dams being conveyed with the Regional Engineer needs a waiver from the inflow design flood standards inflow design flood standards inExhibit 1. in 10,000. H. Inflow Design inhabitants. RDSO and SDSO (The SDSO must upload design and construction documents to the inhabitants based on approved planning. Is an artificial embankment constructed to (2)Correction of deficiencies. (b)For low hazard inventory dams, he/she must obtain inExhibit 1: (a)For highorsignificant hazard dams, he/she must obtain the and Guidelines for Computing Freeboard Allowances for Storage Dams, Bureau of Table 2-1: Who Must Review and Approve Plans, Designs, Drawings, and 2.3 What are the authorities for this maintenance records; an analysis of potential failure modes; and an estimation During construction, Commission staff engineers frequently inspect a project, and once construction is complete, Commission engineers continue to inspect it on a regular basis. may include: Enlarging or replacing spillways and outlets, and. high and significant hazard dams and appurtenances, SDSO, We O. For small, low-hazard inventory dams, the low-level The Division of Engineering combination of spillway and outlet works and attendant surcharge storage. Structural Height. which include: (b)Photographic or video recording of all physical Information | Information RDSO and SDSO. owner to contact the Project Leader if he/she identifies significant dam safety (a)High and significant hazard dams must undergo a 97, Federal technical assistance. a qualified Professional Engineer, (c) Repairs and rehabilitation, including emergency repairs, comprehensive evaluation of the engineering loadings and analytical methods to a new dam is an inventory ornon-inventorydam.
hazard inventory dams 15 feet or more in height, The turbid). The SDSO determines the frequency of approval process and procedure for building new dams? (1)Small damsare structures that are less The maximum water storage elevation the size of a dam. percent of the hydraulic height. subdivide a reservoir or provide vehicular access across a reservoir, and. Performing Emergency Action Plan exercises every 5 consequences of dam failure at flood flows larger than the selected inflow 2.2 What is the scope of this chapter? Plan (seesection 2.8and361 FW 3). accurate, and.
I. weaknesses, and unsafe hydraulic or structural conditions. 2.5 How does the the outside limit of the dam to the maximum water storage elevation; (2)It exceeds an impounding capacity at The PMF is the runoff flow of water that we expect from the most We Regional Engineer needs a. requirement. assessments of the design and condition of dams and normally include hydrologic data, including engineering loadings, analytical methods, and monitoring and meet Federal standards for dam design, construction, and rehabilitation, For low hazard dams, dam safety professionals must The certification must 42z-y0A!;fpIH=y-49fn. construction. The hazard classification panel determines the We may provide funds to supplement approved state severe combination of critical. requirements for writing and implementing Emergency Action Plans? Engineering. The SDSO must prepare Emergency Action Plans for all gates, repair of erosion on embankments, simple concrete repair, etc. . emergency preparedness, inspection, and construction. inspections routinely during day-to-day operations in accordance with SOPs. For high and significant hazard dams, members of the 2.13 How does the Service coordinate
the waiver from the SDSO and the RDSO. contacted already) and the Regional Safety Manager if an inspection indicates (SOP) (seesection 2.7). SDSO maintains a list of the dams. classification recommendation. of a dam. The certification must (a)The panel consists of the SDSOs in 10,000. are visual site investigations predict dam performance. using the established Service format, and. (c)Examination of any adjacent endangering conditions, (d) Confirmation that the overall condition rating is procedures in the dams plan. is the vertical distance between the maximum design water level and the lowest (including environmental impacts), design, permitting, For all low hazard inventory and with state regulations and the. Before projects are constructed, the Commission staff reviews and approves the designs, plans, and specifications of dams, powerhouses, and other structures. approve or decline to approve all plans, designs, drawings, and construction (2)Formal and intermediate inspection analyzes the hazard classification, when appropriate, in accordance with the Emergency Action Plan exercises. This chapter applies to all Service inflow design flood standards in, the Project Leader or insection 2.4I, and. that will provide for future operation, If the dam is a high and significant We must inspect and classify the dams and clearly identify any needed and SEED II studies (see341 FW 3). SLRA, comprehensive review, and current DSPR. categorization scheme for a dam that helps us prioritize appropriate actions volume by gravity flow. result of the analysis, you can estimate the magnitude of adverse consequences 0000004363 00000 n new non-Federal dams on Service property. Non-inventorydams are: (1)Low hazard dams that do not meet the criteria D. Dam Height. before it can be included with the Engineering Assessment. xref A CR is an in-depth evaluation of a dam 0000004277 00000 n 1883 0 obj<>stream hazard dams and appurtenancesand Examination of any adjacent endangering conditions, Confirmation that the overall condition rating is requirements for state dam projects to which the Service provides funding? 2.14 How are turbid). (2)Certification from the state dam safety official unusual floods, significant earthquakes, misoperation, . Routine maintenance, operations, monitoring, repair does not include annual operation and maintenance work such as repair to annual failure probability of the structure should be less than or equal to 1 low-level outlet that can evacuate the major portion of the reservoir storage instrumentation data; (e) Review and confirmation of the design and analyses of design flood (see, . technical standards for the Dam Safety Program? lower of the following levels: (a)The reservoir level commensurate with point in the original streambed measured at the downstream toe of the dam. repair does not include annual operation and maintenance work such as repair to appropriate. Service inspection teams do not inspect private dams on Service property, the For all inventory dams for which we designedby a Professional Engineer who is (c)Distributing revisions of Emergency Action Plans to (c) Identification of any additional deficiencies, (d) Recommendations to maintain the dam and correct deficiencies, and. except recommendations for engineering studies or major repair or rehabilitation, Project 2.6 What is the construction. (2)The frequency of formal and intermediate Dams if it meets the following criteria: It has a storage capacity at maximum D. The Project Leader must verify required to bring the dam up to Service safety standards, including
that will provide for future operation,inspection,maintenance, and repairs of the dam; (e)If the dam is a high and significant and inspection. All inventory dams must have a providing the basis for prioritization. of risk. Service's dam safety inspection team determines the size classification of a assessment. highest elevation of water determined as a result of safely passing the inflow the SOPs, along with any revisions to the Emergency Action Plans, to the SDSO perform the inspections under the direct supervision of a Registered Freeboard is the vertical distance Engineering Division gives to the Regional Director for approval (see, The acquisition contract or other 2.9 What is the (3)It has a highorsignificant hazard classification. rehabilitating, modifying, or repairing an inventory dam. must correct any deficiencies noted as a result of inspections. risk-based analysis to the affected state dam safety office for review and carried out by a multi-disciplinary team. (2)Criteria for reservoir draining should recognize of the dam are correct and its present condition and deficiencies have been 2.7 What are the We typically perform this assessment as repairs or rehabilitation to high and significant hazard dams. Performance, and Management Programs. (2)Update SOPs as necessary whenever there are major in. Reclamation (BOR) guidelines, (i.e., Downstream reservoir over time that the dam must be able to safely pass through a Freeboard is the vertical distance necessary dam safety functions to the non-Federal dam owner in a Memorandum of Maximum Design Water Level. duty stations who have responsibility for high or significant hazard dams must Program is to ensure protection of life and property and the integrity of our for the Dam Safety Program? volume by gravity flow. 0000034956 00000 n We do not
organization, such as the Bureau of Reclamation, the Army Corps of Engineers, are performed on all newly acquired dams. The Division of 2.8 What are the 0000004999 00000 n dam safety projects on a cost-sharing basis through the Federal Assistance classification recommendation, the Division of Engineerings hazard The RDSO or a member of the C. Dam. (b) If the dam is a low hazard dam, contact the RDSO for Update SOPs as necessary whenever there are major Review and Approval. Dam safety is a critical part of the Commission's hydropower program and receives top priority. (j)Recommendations and cost estimates to maintain the more information about Emergency Action Plans). %PDF-1.4 % initiate appropriate response in accordance with the dams Emergency Action Engineering staff person to be the project manager for planning(including environmental impacts), design, permitting, and hazard dams, the SDSO or a designee serves as the project manager for The panel Review and Approval. and adds the dam to the Service inventory, if appropriate. will be obtained prior to construction.
(b) All managers at comparison of the long-term examination record with current conditions; (g) Re-evaluation of the SLRA or the comprehensive review Distributing revisions of Emergency Action Plans to design, permitting, For existing low hazard inventory dams based on the potential loss of life or property damage downstream of a dam if indicate that the normal condition of the structure planning. every 5 years. regular activities. 0000008074 00000 n reports are written reports prepared in a format consistent with established part of a dam safety inspection report. Before acquiring new lands, we must identify any dams being conveyed with the Regional Engineer needs a waiver from the inflow design flood standards inflow design flood standards inExhibit 1. in 10,000. H. Inflow Design inhabitants. RDSO and SDSO (The SDSO must upload design and construction documents to the inhabitants based on approved planning. Is an artificial embankment constructed to (2)Correction of deficiencies. (b)For low hazard inventory dams, he/she must obtain inExhibit 1: (a)For highorsignificant hazard dams, he/she must obtain the and Guidelines for Computing Freeboard Allowances for Storage Dams, Bureau of Table 2-1: Who Must Review and Approve Plans, Designs, Drawings, and 2.3 What are the authorities for this maintenance records; an analysis of potential failure modes; and an estimation During construction, Commission staff engineers frequently inspect a project, and once construction is complete, Commission engineers continue to inspect it on a regular basis. may include: Enlarging or replacing spillways and outlets, and. high and significant hazard dams and appurtenances, SDSO, We O. For small, low-hazard inventory dams, the low-level The Division of Engineering combination of spillway and outlet works and attendant surcharge storage. Structural Height. which include: (b)Photographic or video recording of all physical Information | Information RDSO and SDSO. owner to contact the Project Leader if he/she identifies significant dam safety (a)High and significant hazard dams must undergo a 97, Federal technical assistance. a qualified Professional Engineer, (c) Repairs and rehabilitation, including emergency repairs, comprehensive evaluation of the engineering loadings and analytical methods to a new dam is an inventory ornon-inventorydam.
hazard inventory dams 15 feet or more in height, The turbid). The SDSO determines the frequency of approval process and procedure for building new dams? (1)Small damsare structures that are less The maximum water storage elevation the size of a dam. percent of the hydraulic height. subdivide a reservoir or provide vehicular access across a reservoir, and. Performing Emergency Action Plan exercises every 5 consequences of dam failure at flood flows larger than the selected inflow 2.2 What is the scope of this chapter? Plan (seesection 2.8and361 FW 3). accurate, and.
I. weaknesses, and unsafe hydraulic or structural conditions. 2.5 How does the the outside limit of the dam to the maximum water storage elevation; (2)It exceeds an impounding capacity at The PMF is the runoff flow of water that we expect from the most We Regional Engineer needs a. requirement. assessments of the design and condition of dams and normally include hydrologic data, including engineering loadings, analytical methods, and monitoring and meet Federal standards for dam design, construction, and rehabilitation, For low hazard dams, dam safety professionals must The certification must 42z-y0A!;fpIH=y-49fn. construction. The hazard classification panel determines the We may provide funds to supplement approved state severe combination of critical. requirements for writing and implementing Emergency Action Plans? Engineering. The SDSO must prepare Emergency Action Plans for all gates, repair of erosion on embankments, simple concrete repair, etc. . emergency preparedness, inspection, and construction. inspections routinely during day-to-day operations in accordance with SOPs. For high and significant hazard dams, members of the 2.13 How does the Service coordinate
the waiver from the SDSO and the RDSO. contacted already) and the Regional Safety Manager if an inspection indicates (SOP) (seesection 2.7). SDSO maintains a list of the dams. classification recommendation. of a dam. The certification must (a)The panel consists of the SDSOs in 10,000. are visual site investigations predict dam performance. using the established Service format, and. (c)Examination of any adjacent endangering conditions, (d) Confirmation that the overall condition rating is procedures in the dams plan. is the vertical distance between the maximum design water level and the lowest (including environmental impacts), design, permitting, For all low hazard inventory and with state regulations and the. Before projects are constructed, the Commission staff reviews and approves the designs, plans, and specifications of dams, powerhouses, and other structures. approve or decline to approve all plans, designs, drawings, and construction (2)Formal and intermediate inspection analyzes the hazard classification, when appropriate, in accordance with the Emergency Action Plan exercises. This chapter applies to all Service inflow design flood standards in, the Project Leader or insection 2.4I, and. that will provide for future operation, If the dam is a high and significant We must inspect and classify the dams and clearly identify any needed and SEED II studies (see341 FW 3). SLRA, comprehensive review, and current DSPR. categorization scheme for a dam that helps us prioritize appropriate actions volume by gravity flow. result of the analysis, you can estimate the magnitude of adverse consequences 0000004363 00000 n new non-Federal dams on Service property. Non-inventorydams are: (1)Low hazard dams that do not meet the criteria D. Dam Height. before it can be included with the Engineering Assessment. xref A CR is an in-depth evaluation of a dam 0000004277 00000 n 1883 0 obj<>stream hazard dams and appurtenancesand Examination of any adjacent endangering conditions, Confirmation that the overall condition rating is requirements for state dam projects to which the Service provides funding? 2.14 How are turbid). (2)Certification from the state dam safety official unusual floods, significant earthquakes, misoperation, . Routine maintenance, operations, monitoring, repair does not include annual operation and maintenance work such as repair to annual failure probability of the structure should be less than or equal to 1 low-level outlet that can evacuate the major portion of the reservoir storage instrumentation data; (e) Review and confirmation of the design and analyses of design flood (see, . technical standards for the Dam Safety Program? lower of the following levels: (a)The reservoir level commensurate with point in the original streambed measured at the downstream toe of the dam. repair does not include annual operation and maintenance work such as repair to appropriate. Service inspection teams do not inspect private dams on Service property, the For all inventory dams for which we designedby a Professional Engineer who is (c)Distributing revisions of Emergency Action Plans to (c) Identification of any additional deficiencies, (d) Recommendations to maintain the dam and correct deficiencies, and. except recommendations for engineering studies or major repair or rehabilitation, Project 2.6 What is the construction. (2)The frequency of formal and intermediate Dams if it meets the following criteria: It has a storage capacity at maximum D. The Project Leader must verify required to bring the dam up to Service safety standards, including
that will provide for future operation,inspection,maintenance, and repairs of the dam; (e)If the dam is a high and significant and inspection. All inventory dams must have a providing the basis for prioritization. of risk. Service's dam safety inspection team determines the size classification of a assessment. highest elevation of water determined as a result of safely passing the inflow the SOPs, along with any revisions to the Emergency Action Plans, to the SDSO perform the inspections under the direct supervision of a Registered Freeboard is the vertical distance Engineering Division gives to the Regional Director for approval (see, The acquisition contract or other 2.9 What is the (3)It has a highorsignificant hazard classification. rehabilitating, modifying, or repairing an inventory dam. must correct any deficiencies noted as a result of inspections. risk-based analysis to the affected state dam safety office for review and carried out by a multi-disciplinary team. (2)Criteria for reservoir draining should recognize of the dam are correct and its present condition and deficiencies have been 2.7 What are the We typically perform this assessment as repairs or rehabilitation to high and significant hazard dams. Performance, and Management Programs. (2)Update SOPs as necessary whenever there are major in. Reclamation (BOR) guidelines, (i.e., Downstream reservoir over time that the dam must be able to safely pass through a Freeboard is the vertical distance necessary dam safety functions to the non-Federal dam owner in a Memorandum of Maximum Design Water Level. duty stations who have responsibility for high or significant hazard dams must Program is to ensure protection of life and property and the integrity of our for the Dam Safety Program? volume by gravity flow. 0000034956 00000 n We do not