Terminal Groin Construction Observation Report #041 03/25/2022

2021-2022 OCEAN ISLE BEACH —TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 25, 2022 Observation Report No.: 041
Observers: Adam Priest Commencement Date: November 16, 2021
Contract Date: 130
Arrival/Departure Times: 10:30— 16:45
Weather Conditions:
Wave Height & Direction
Wind Speed & Direction:
Marine Mattress Installed BTWN:
Armor Stone Installed BTWN:
Sheet Pile Installed BTWN:
Completed Armor Stone:
Completed Armor Stone:
Completed Marine Mattress:
Completed Sheet Pile:
2 Feet, S
10-25 MPH, SE
5+50 to 5+00
0+00 to 1+00 (concrete cap)
Today: 50 Tons (Size A)
Today: N/A Tons (Size B)
Today: N/A Sq. Ft.
Today: 0
To Date: 12,900 Tons (Size A)
To Date: 7,105 Tons (Size B)
To Date: 57,325 Sq. Ft.
To Date: 300 Ft.
OBSERVATIONS
Approach to Site Yes/No/NA
1. Is the contractor using the approved construction accesses and vehicle routes? Yes
Notes: N/A
2. Are construction warning signs in place? Yes
Notes: N/A
3. Are construction and staging areas fenced off to prevent public access? Yes
Notes: N/A
Resorts/Plans/Specifications
4. Are the construction plans and specifications located at the project site? Yes
Notes: N/A
5. Are the permits located and notices displayed at the project site? Yes
Notes: N/A
6. Has the contractor provided the Daily Reports for the previous day? Yes
If incomplete, list deficiencies of contractor's Daily Report: N/A
Protect Site
7. Are construction operations being conducted today? Yes
Notes: See Detailed Observation #1
8. Is the marine mattress foundation being constructed today? No
Notes: N/A
9. Is armor stone being placed today? Yes
Notes: See Detailed Observation #1
10. Is the steel sheet pile wall being constructed today? Yes
Notes: See Detailed Observations #3 - #8
11. Is the accretion fillet being constructed today? No
Notes: N/A
Pnusup
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2021-2022 OCEAN ISLE BEACH -TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 25, 2022 Observation Report No.: 041
12. Is the contractor using approved staging storage areas (marked, neat & orderly)? Yes
Notes: N/A
13. Is the public being kept out of the construction area? No
Notes: N/A
14. Is the acceptance survey for a completed section being conducted today? No
Location: N/A
15. Was any environmental monitoring (turbidity, turtle, bird, etc.) conducted today? No
Describe environmental monitoring: N/A
Measurements and SamDlin
16. Was the constructed structure verified to meet the plans and specifications? No
Measurement: N/A
17. Was the constructed sheet pile verified to meet the plans and specifications? Yes
Measurement: A minimum cover distance of 3 inches was measured between the steel reinforcing and the
inside edge of the concrete form.
18. Were any photographs taken? Yes
19. Was the drone flown today? No
Detailed Observations:
1. Construction on the rubblemound portion of the terminal groin was observed with CDC arranging armor stone
(Size B) to meet the project design template. The excavator was working between Sta. 5+50 and Sta. 5+00.
2. A trench was observed on the western side of the structure between Sta. 5+00 and Sta. 6+90. CDC excavated the
trench to expose the armor stone along the toe of the structure.
3. Observations of the concrete cap formwork and steel reinforcement showed that a minimum of 3 inches of cover
was being maintained between the steel and form work. Plastic chairs were observed being used to support the
steel rebar. Double strut coil ties were observed in place at every other sheet pile handling hole location.
4. McLean's crew was observed pouring concrete between Sta. 0+00 and 1+00 and finishing the top of the concrete
cap between Sta. 0+00 to Sta. 1+00 (See Photos #5 - #10).
5. CDC and McLean lined a depression adjacent to the concrete cap with a plastic liner to be used as a washout
location for the concrete trucks.
6. Richard Mattingly (CDC) was observed checking the top of concrete cap elevation with a rod and laser level.
Richard indicated that the top of cap elevation was 0.02' off the design grade.
7. A Materials Testing Technician from ECS Limited was observed on -site and testing the concrete slump and air
content. The technician also made 5 concrete cylinders (7 day, 14 day, and three 28 day cylinders) that will be
used for compressive strength testing.
8. A QC Technician from Carolina Ready Mix was observed on -site and tested the concrete slump and air content.
The technician also made 5 concrete cylinders (7 day, 14 day, and three 28 day cylinders) that will be used for QC
compressive strength testing.
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2021-2022 OCEAN ISLE BEACH -TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 25, 2022 Observation Report No.: 041
9. An escarpment 20 to 30 ft. in length and approximately 18 inches high was observed at the apparent corner of
the accretion fillet shoreline closest to the rubblemound structure.
10. The area of the beach where stone fragments had been previously deposited was observed to have been scraped
with the excavator to remove the stone fragments from the beach. The stone fragments are being stockpiled in
one location. More stone fragments were observed in the area to be removed.
Items Discussed with Contractor's Superintendent, Surveyor, Regulatory Agencies, ... etc.:
Prior to testing the concrete for the concrete cap, 10 gallons of water was added to the mix in the truck. Andy
(Carolina Ready Mix) explained that the 10 gallons had been called for in the concrete mix design but was
withheld until the concrete was on -site. After the water was added, the slump test was performed and indicated
the concrete had a 5" slump. During the course of the concrete pour, the concrete began to become less fluid
and additional water was requested to be added. Adam Priest (CPE) said that no additional water, above what
the design mix called for, could be added. For the second concrete truck, Andy (Carolina Ready Mix) proposed
adding 600 ml of superplasticizer in lieu of adding the 10 gallons of water. Adam agreed that the superplasticizer
could be added, no additional water was added.
Were any issues identified today which may result in a field adjustment report, contract modification,
request for interpretation, or noncompliance? If so, describe:
1. No issues were discussed today.
Equipment List:
(1) frontend loader, (2) off road dump trucks, (2) excavators, (1) D6 bulldozer, (1) 75-ton crane w/ vibratory hammer
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2021-2022 OCEAN ISLE BEACH -TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 25, 2022
Photos
7
Photo 1. Ocean conditions at 11:00 am.
Observation Report No.: 041
Photo 2. View of the CDC excavator working to arrange the armor stones to meet the design template near Sta.
5+50.
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2021-2022 OCEAN ISLE BEACH -TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 25, 2022
01W, -
Observation Report No.: 041
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Photo 3. CDC crews placing Size A armor stones near excavator to be placed and arranged to meet the design
template between Sta. 5+50 and 5+00.
Photo 4. View of the rubblemound structure near Sta. 7+00 looking southeast.
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2021-2022 OCEAN ISLE BEACH -TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 25, 2022 Observation Report No.: 041
57
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Photo 5. View of the concrete ECS Limited technician ready with a wheelbarrow ready to take a sample of the
concrete for air content and slump testing.
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Photo 6. Carolina Ready Mix QC technician making concrete cylinders to be able to test the compressive
strength of the concrete.
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2021-2022 OCEAN ISLE BEACH -TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 25, 2022 Observation Report No.: 041
Photo 7. View of the concrete being poured into the cap formwork using a concrete hopper.
Photo 8. View of concrete filling half of the form where the top of the rebar reinforcing cage is still visible.
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2021-2022 OCEAN ISLE BEACH -TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 25, 2022 Observation Report No.: 041
Photo 9. View of the McLean concrete finishers working on floating to top of the concrete cap, looking north at
Sta. 1+00.
Photo 10. View of the top of concrete cap ready to be finished with a hand broom, looking south near Sta. 0+50.
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