C05 Practical Exercise River Recon
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School
Concorde Career Colleges, Memphis *
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Course
12BALC
Subject
Industrial Engineering
Date
Feb 20, 2024
Type
docx
Pages
8
Uploaded by andrew_lamance
Course
052-12B30-C45 (DL) - Phase 1 - COMBAT ENGINEER ALC - FY24
Test
PE - C05: Conduct a River Reconnaissance Practical Exercise
Started
12/3/23 9:31 PM
Submitted
12/3/23 9:41 PM
Status
Completed
Attempt Score
100 out of 110 points Time Elapsed
9 minutes
Instruction
s
Overall Scenario:
On a mobility mission, your unit approaches a river to be crossed. Before your forces can cross the gap, a river reconnaissance must be completed to identify
essential information to ensure a safe and successful gap crossing. You are responsible for
collecting the river information to support operational planning and movement including gap
width, depth of the water, steam velocity, bank slopes, soil composition, and any potential obstacles. In addition to conducting the reconnaissance, you must complete and submit DD
Form 3016.
Conduct a River Reconnaissance Overview:
A River Reconnaissance is conducted to support engineer activities by identifying sites that may be suitable for military rafting, bridging, fording or swimming. The detailed technical information collected during the river reconnaissance is recorded on DD Form 3016. Identifying the characteristics of water-
crossing points along the line of advance is critical to ensure the mobility of the force. Tactical commanders and their staff use information gathered during River Reconnaissance to plan for and ensure the proper equipment and task organizations are in
place to maintain the momentum of the advance.
River Reconnaissance Activities:
Collect river reconnaissance data
Prepare and submit DD Form 3016
References:
ATP 3-34.81, Engineer Reconnaissance, 01 March 2016
DD Form 3016, River Reconnaissance Report, 01 Feb 2016
Results Displayed
Submitted Answers, Feedback, Incorrectly Answered Questions
Question 1
0 out of 10 points
Activity 1:
Collect river reconnaissance data.
Scenario:
On a mobility mission, your unit approaches a river to be crossed. Before your forces can cross the gap, a river reconnaissance must be completed to identify essential information to ensure a safe and successful gap crossing.
Task 1
: Which of the following are tasks you must perform prior to beginning a river reconnaissance?
Selected Answers:
b.
Measure river depth
c.
Conduct map reconnaissance of location
d.
Determine river approaches
Response Feedback:
Incorrect. The correct answers are now displayed. It is recommended
that you review the information to consider before you begin a river reconnaissance information to reinforce your knowledge in this area.
Question 2
10 out of 10 points
Task 2
: Which of the following are desirable characteristics that may make a river suitable for military rafting, bridging, fording, or swimming?
Selected Answers:
a.
Banks that permit loading without a great deal of preparation.
b.
Approaches that permit easy access and egress.
d.
Sites clear of mines and booby traps.
f.
Holding areas for vehicles awaiting passage.
Response Feedback:
Correct. Nice work, SSG. You selected the desirable characteristics that may make a river suitable for military rafting, bridging, fording, or swimming.
Question 3
10 out of 10 points
Task 3
: You should measure the depth at __-meter intervals along the planned stream crossing route.
Selected Answer:
c.
3
Response Feedback:
Correct. Nice work, SSG. You should measure the depth at 3-meter
intervals along the planned stream crossing route.
Question 4
10 out of 10 points
Task 4
: What is the approach slope of the river bank shown here?
Selected Answer:
d.
33%
Response Feedback:
Correct. Nice work, SSG. The approach slope for a river is calculated
by dividing the height of the slope by the length of the slope times 100. In this case, 2m/6m x 100 = 33%.
Question 5
10 out of 10 points
Task 5
: This soldier is measuring the velocity of the river. If the distance between point A and point B is
30 feet and the soldier drops a ball in the water that travels from him to point A in 4 seconds and then from point A to point B in 6 seconds, what is the velocity of the river?
Selected Answer:
5 ft/sec
Response Feedback:
Correct. Nice work, SSG. Velocity is
the distance between A and B (30 feet) divided by the time it takes an object to float between them (6 seconds), in this instance that is 5 ft/second.
Question 6
10 out of 10 points
Activity 2
: Prepare and submit DD Form 3016.
Scenario
: Collecting the data is important, but preparing and submitting the DD Form is how you’ll communicate the river reconnaissance data to higher headquarters. Your unit will not be able to move forward without accurate detailed reconnaissance information.
Task 1:
Which of the following information would go in the header field of DD Form 3016 shown here?
Selected Answer:
a.
20200801
Response Feedback:
Correct. Nice work, SSG. The data of the reconnaissance goes in the Date Ordered field of DD Form 3016.
Question 7
10 out of 10 points
Task 2
: Review the field notes your unit took down while conducting the river reconnaissance, then determine what information goes in the highlighted DD Form 3016 field shown below.
Field Notes:
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Reconnaissance date
: Aug 1, 2020, 8:00 am
Location
: AP Franklin 005, from TT 945212 to TT 938183
Grid
: Coordinates - 1:50,000 TT 945188
Map
: Series V7345, Sheet 5560 III, OPORD 1
Nearest town
: Jones Crossing (2 km SE)
River Crossing
: Brush Creek
Nearshore Characteristics:
Bank height is 1.7m with a slope of 7%. The bank has a firm, clay soil with no mines or obstacles. The slope to depth of 2m is 12%, where the soil is soft mud with no mines or obstacles.
Far Characteristics:
Bank height is 1.0m with a slope of 10%. The bank has a firm, clay soil with no mines or obstacles. The slope to depth of 2m is 9%, where the soil is soft mud with no mines. There is a stump obstacle located at 1m.
River Characteristics:
River has a gap width of 138m and a velocity of 1.5mps. Gap depth: ¼ - 4m; ½ - 6m; ¾ - 3.5m. The flow direction is SE. River bottom is soft mud across the entire gap. Anchorage suitability is good with no obstacles.
Comments
: Nearshore approach is130 m wide, and farshore approach is 80 m wide, both with firm soil and no overhead cover. Stump located at 1m from farshore measures 28 inches in diameter and will need to be removed before crossing. Crossing site has no history of flooding but heavy snow potential in winter months.
Selected Answer:
c.
Brush Creek
Response Feedback:
Correct. Nice work, SSG. The crossing name, which is Brush Creek, goes in this field of DD Form 3016.
Question 8
10 out of 10 points
Task 3
: Review the field notes your unit took down while conducting the river reconnaissance, then determine what information goes in the highlighted DD Form 3016 field shown below.
Field Notes:
Reconnaissance date
: Aug 1, 2020, 8:00 am
Location
: AP Franklin 005, from TT 945212 to TT 938183
Grid
: Coordinates - 1:50,000 TT 945188
Map
: Series V7345, Sheet 5560 III, OPORD 1
Nearest town
: Jones Crossing (2 km SE)
River Crossing
: Brush Creek
Nearshore Characteristics:
Bank height is 1.7m with a slope of 7%. The bank has a firm, clay soil with no mines or obstacles. The slope to depth of 2m is 12%, where the soil is soft mud with no mines or obstacles.
Far Characteristics:
Bank height is 1.0m with a slope of 10%. The bank has a firm, clay soil with no mines or obstacles. The slope to depth of 2m is 9%, where the soil is soft mud with no mines. There is a stump obstacle located at 1m.
River Characteristics:
River has a gap width of 138m and a velocity of 1.5mps. Gap depth: ¼ - 4m; ½ - 6m; ¾ - 3.5m. The flow direction is SE. River bottom is soft mud across the entire gap. Anchorage suitability is good with no obstacles.
Comments
: Nearshore approach is130 m wide, and farshore approach is 80 m wide, both with firm soil and no overhead cover. Stump located at 1m from farshore measures 28 inches in diameter and will need to be removed before crossing. Crossing site has no history of flooding but heavy snow potential in winter months.
Selected Answer:
b.
7%
Response Feedback:
Correct. Nice work, SSG. The bank slope, which is 7%, goes in this field of DD
Form 3016.
Question 9
10 out of 10 points
Task 4
: Review the field notes your unit took down while conducting the river reconnaissance, then determine what information goes in the highlighted DD Form 3016 field shown below.
Field Notes:
Reconnaissance date
: Aug 1, 2020, 8:00 am
Location
: AP Franklin 005, from TT 945212 to TT 938183
Grid
: Coordinates - 1:50,000 TT 945188
Map
: Series V7345, Sheet 5560 III, OPORD 1
Nearest town
: Jones Crossing (2 km SE)
River Crossing
: Brush Creek
Nearshore Characteristics:
Bank height is 1.7m with a slope of 7%. The bank has a firm, clay soil with no mines or obstacles. The slope to depth of 2m is 12%, where the soil is soft mud with no mines or obstacles.
Far Characteristics:
Bank height is 1.0m with a slope of 10%. The bank has a firm, clay soil with no mines or obstacles. The slope to depth of 2m is 9%, where the soil is soft mud with no mines. There is a stump obstacle located at 1m.
River Characteristics:
River has a gap width of 138m and a velocity of 1.5mps. Gap depth: ¼ - 4m; ½ - 6m; ¾ - 3.5m. The flow direction is SE. River bottom is soft mud across the entire gap. Anchorage suitability is good with no obstacles.
Comments
: Nearshore approach is130 m wide, and farshore approach is 80 m wide, both with firm soil and no overhead cover. Stump located at 1m from farshore measures 28 inches in diameter and will need to be removed before crossing. Crossing site has no history of flooding but heavy snow potential in winter months.
Selected Answer:
c.
SW
Response Feedback:
Correct. Nice work, SSG. The flow direction, which is SW, goes in this field of DD Form 3016.
Question 10
10 out of 10 points
Task 5
: Review the field notes your unit took down while conducting the river reconnaissance, then determine what information goes in the highlighted DD Form 3016 field shown below.
Field Notes:
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Reconnaissance date
: Aug 1, 2020, 8:00 am
Location
: AP Franklin 005, from TT 945212 to TT 938183
Grid
: Coordinates - 1:50,000 TT 945188
Map
: Series V7345, Sheet 5560 III, OPORD 1
Nearest town
: Jones Crossing (2 km SE)
River Crossing
: Brush Creek
Nearshore Characteristics:
Bank height is 1.7m with a slope of 7%. The bank has a firm, clay soil with no mines or obstacles. The slope to depth of 2m is 12%, where the soil is soft mud with no mines or obstacles.
Far Characteristics:
Bank height is 1.0m with a slope of 10%. The bank has a firm, clay soil with no mines or obstacles. The slope to depth of 2m is 9%, where the soil is soft mud with no mines. There is a stump obstacle located at 1m.
River Characteristics:
River has a gap width of 138m and a velocity of 1.5mps. Gap depth: ¼ - 4m; ½ - 6m; ¾ - 3.5m. The flow direction is SE. River bottom is soft mud across the entire gap. Anchorage suitability is good with no obstacles.
Comments
: Nearshore approach is130 m wide, and farshore approach is 80 m wide, both with firm soil and no overhead cover. Stump located at 1m from farshore measures 28 inches in diameter and will need to be removed before crossing. Crossing site has no history of flooding but heavy snow potential in winter months.
Selected Answer:
d.
Firm
Response Feedback:
Correct. Nice work, SSG. The bank stability, which is firm, goes in this field of DD Form 3016.
Question 11
10 out of 10 points
Task 6
: Using the field notes your unit took down while conducting the river reconnaissance, determine the best response for the Remarks field of DD Form 3016.
Field Notes:
Reconnaissance date
: Aug 1, 2020, 8:00 am
Location
: AP Franklin 005, from TT 945212 to TT 938183
Grid
: Coordinates - 1:50,000 TT 945188
Map
: Series V7345, Sheet 5560 III, OPORD 1
Nearest town
: Jones Crossing (2 km SE)
River Crossing
: Brush Creek
Nearshore Characteristics:
Bank height is 1.7m with a slope of 7%. The bank has a firm, clay soil with no mines or obstacles. The slope to depth of 2m is 12%, where the soil is soft mud with no mines or obstacles.
Far Characteristics:
Bank height is 1.0m with a slope of 10%. The bank has a firm, clay soil with no mines or obstacles. The slope to depth of 2m is 9%, where the soil is soft mud with no mines. There is a
stump obstacle located at 1m.
River Characteristics:
River has a gap width of 138m and a velocity of 1.5mps. Gap depth: ¼ - 4m; ½ - 6m; ¾ - 3.5m. The flow direction is SE. River bottom is soft mud across the entire gap. Anchorage suitability is good with no obstacles.
Comments
: Nearshore approach is130 m wide, and farshore approach is 80 m wide, both with firm soil and no overhead cover. Stump located at 1m from farshore measures 28 inches in diameter and will need to be removed before crossing. Crossing site has no history of flooding but heavy snow potential in winter months.
Selected Answer:
a.
Nearshore approach is 130m wide; farshore 80m wide, both with firm soil and no overhead cover. Stump located on farshore measures 28 inches in diameter and will need to be removed before crossing. Crossing site has no history of flooding but heavy snow potential in winter months.
Response Feedback:
Correct. Nice work, SSG. You correctly identified the important information that should be contained in this Remarks section of DD Form 3016.
It is recommended that you download and print
DD Form 3016
and practice completing the river sketch in blocks 15 and 16 based on the field notes gathered here.