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πŸ”οΈ Geotechnical

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Geotech-101: Slope Stability Analysis

3 PDH | USACE EM 1110-2-1902

Public Domain | Instant Certificate

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Includes: 30-question HTML quiz β€’ Auto-certificate β€’ USACE EM 1110-2-1902 (Ch 1-6) [attached_file:1]

πŸ“– Course Preview

Learning Objectives
  1. Apply Spencer’s Method for general slope analysis (Ch 4-2c)
  2. Calculate FOS: 1.5 end-of-construction, 1.3 steady seepage (Ch 2-2)
  3. Size tension cracks to eliminate tensile stresses (Ch 2-3e)
  4. Perform infinite slope analysis for shallow failures (Ch 3-1)
  5. Select 8-15 slices minimum for method of slices (Ch 4-1b)
  6. Verify critical slip surface (lowest FOS) during construction (Ch 1-6j)
Factor of Safety Requirements (Table 2-1)
ConditionNew EmbankmentsExisting Dams
End-of-Construction1.51.2
Steady Seepage1.31.2
Earthquake1.00.9
Analysis Methods Hierarchy (Ch 1-6f)
1st: Spencer’s (force + moment equilibrium)
2nd: Bishop’s (force equilibrium)
3rd: Ordinary Slices (no interslice forces)
Quiz: 30 questions | 21/30 to pass (70%) [attached_file:1]
Source: USACE EM 1110-2-1902 Slope Stability (Public Domain). 21/30 passes for 3 PDH. Auto-grading + certificate included.

πŸ—οΈ Civil

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Civil-101: Earth & Rock-Fill Dam Design

3 PDH | USACE EM 1110-2-2300

Public Domain | Instant Certificate

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Includes: 40-page PDF β€’ 30-question quiz β€’ PDH certificate [attached_file:1]

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Learning Objectives
  1. Identify 5 embankment zones per USACE EM 1110-2-2300
  2. Calculate slope stability FOS (1.5 static, 1.0 seismic)
  3. Design chimney drains (3ft min width)
  4. Specify compaction (95% MDD core)
  5. Layout piezometers (500ft spacing)
  6. Develop EAP Level 1-3 plans
Embankment Zoning
ZoneMaterial% FinesFunction
1A CorePlastic Clay>30%Water Barrier
3 ShellGravel/Sand<12%Stability
4 Riprap6″-24″ Rock0%Erosion Control
Slope Stability Requirements
Static: 1V:2.5H upstream | 1V:2.0H downstream
FOS: 1.5 steady seepage | 1.0 earthquake [attached_file:1]

⚑ Electrical

🏭

Electrical-101: Hydroelectric Power Plants

3 PDH | USACE EM 1110-2-3006

Public Domain | Instant Certificate

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Includes: 75-page PDF (Ch 1-6) β€’ 30-question quiz β€’ PDH certificate [attached_file:1]

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Learning Objectives
  1. Design “unit” switching arrangements (min generation loss)
  2. Size generators for max turbine HP at 100% gate
  3. Specify GSU transformer ONAN/ONAF cooling
  4. Calculate fault currents (X”d, 7.5% impedance tolerance)
  5. Design low-impedance generator neutral grounding
  6. Layout 69kV+ switchyards w/ surge arresters [attached_file:1]
Unit Switching Arrangements (Ch 2)
ArrangementAdvantageFault LossCost
Unit SchemeMin generation loss1 unitHigh
2-Unit GSUSingle transmission2 unitsMedium
3-WindingLow through ZAll unitsLow
Generator Design (Ch 3)
Voltage: ≀13.8kV slow-speed | Class B/F insulation (75Β°C rise)
Short-Circuit Ratio: Higher = better stability, lower efficiency [attached_file:1]
Source: USACE EM 1110-2-3006 (Public Domain). Approved for public release [attached_file:1].

🚧 Construction

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Construction-101: Earth Levee Design

3 PDH | USACE EM 1110-2-1913

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Includes: 30-question HTML quiz β€’ Auto-certificate β€’ USACE EM 1110-2-1913 (Ch 1-8) [attached_file:1]

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Learning Objectives
  1. Levee design procedures: 10-step process (Ch 1)
  2. Embankment zoning & foundation treatment (Ch 4-5)
  3. Slope stability analysis for levee sections (Ch 7)
  4. Underseepage control & filter design (Ch 6)
  5. Construction sequencing & compaction specs (Ch 8)
  6. Levee reaches division by soil conditions (Ch 1-4)
Levee Design Procedures (Ch 1)
StepProcedure
1-3Preliminary sections & soil parameters
4-5Reach division & trial sections
6-7Stability/seepage analysis
8-10Final sections & slope protection
Analysis Requirements
Underseepage βœ“ Slope Stability βœ“ Settlement βœ“ Erosion βœ“
Quiz: 30 questions | 21/30 to pass (70%) [attached_file:1]
Source: USACE EM 1110-2-1913 Earth Levees (Public Domain) [web:11]

βš™οΈ Controls

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Controls-101: Dam & Levee Instrumentation

3 PDH | USACE EM 1110-2-1908

Public Domain | Instant Certificate

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Includes: 30-question HTML quiz β€’ Auto-certificate β€’ USACE EM 1110-2-1908 (Ch 1-10) [attached_file:1]

πŸ“– Course Preview

Learning Objectives
  1. Piezometers: Casagrande (negative pore pressure), vibrating wire (Ch 6)
  2. Inclinometers: 100ft max spacing for slope movement (Ch 6-3)
  3. Settlement plates at embankment-foundation interface (Ch 6-4)
  4. Weep drains monitor underseepage exit gradient (Ch 6-5)
  5. Data collection: Monthly normal, weekly reservoir filling (Ch 7-1)
  6. Annual instrument maintenance + calibration (Ch 9)
Instrumentation Reading Frequency (Ch 7-1)
ConditionFrequency
Normal OperationMonthly
Reservoir FillingWeekly
Heavy Rain/SeismicDaily
Alert ConditionsHourly
Piezometer Types Comparison (Ch 6-2)
Casagrande: Negative pore pressure βœ“ | Manual read
Vibrating Wire: Remote reading βœ“ | High accuracy
Standpipe: Positive pressure only | Low cost
Quiz: 30 questions | 21/30 to pass (70%) [attached_file:1]
Source: USACE EM 1110-2-1908 Instrumentation of Embankment Dams & Levees (Public Domain) [web:55]

⚑ Energy

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Energy-101: Hydroelectric Power Plants

3 PDH | USACE EM 1110-2-3006

Public Domain | Instant Certificate

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Includes: 75-page PDF (Ch 1-6) β€’ 30-question quiz β€’ PDH certificate [web:62]

πŸ“– Course Preview

Learning Objectives
  1. Unit switching: Minimum generation loss from faults (Ch 2)
  2. Generator sizing: Max turbine HP at 100% gate (Ch 3-1)
  3. GSU transformers: 7.5% impedance tolerance (Ch 4-2)
  4. Neutral grounding: Low impedance preferred (Ch 3-5)
  5. Switchyards: 69kV+ with surge arresters (Ch 5)
  6. Station service: 4.16kV preference (Ch 6-1)
Unit Switching Arrangements (Ch 2)
ArrangementAdvantageFault Loss
Unit SchemeMin generation loss1 unit
2-Unit GSUSingle transmission2 units
3-WindingLow through ZAll units
Generator Design Specs (Ch 3)
Voltage: ≀13.8kV slow-speed | Class B/F insulation (75Β°C rise)
PF: 0.9 lagging | SCR: Higher = better stability
Quiz: 30 questions | 21/30 to pass (70%) [web:62]
Source: USACE EM 1110-2-3006 Hydroelectric Power Plants (Public Domain) [web:62]

πŸ› οΈ Engineer

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Engineer-101: Reinforced Concrete Hydraulic Structures

3 PDH | USACE EM 1110-2-2104

Public Domain | Instant Certificate

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Includes: 80-page PDF (Ch 1-5) β€’ 30-question quiz β€’ PDH certificate [web:51]

πŸ“– Course Preview

Learning Objectives
  1. LRFD: 1.25D + 1.5L + 1.0S (Ο†=0.90 flexure) (Ch 2)
  2. Reinforcement: ρmin=0.01Ag, ρmax=0.025Ag (Ch 3)
  3. Crack control: fs ≀ 40 ksi service loads (Ch 4)
  4. Development: fy/40√f’c minimum (Ch 4-2)
  5. Class B splices: 1.3 Γ— tension length (Ch 4-3)
  6. Uplift: 2/3 full reservoir head (Ch 5)
LRFD Load Combinations (Ch 2-2)
CaseCombinationφ Flexure
Strength I1.25D + 1.5L + 1.0S0.90
Service ID + 0.7L + 1.0S1.00
Shear1.25D + 1.5L0.75
Reinforcement Limits
Flexure: 0.01-0.025 Ag | Temp: 0.003 Ag
Crack: fs ≀ 40 ksi | Concrete: f’c β‰₯ 3 ksi
Quiz: 30 questions | 21/30 to pass (70%) [web:51]
Source: USACE EM 1110-2-2104 (2025) – Reinforced Concrete Hydraulic Structures [web:51]

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