Terminal Groin Construction Observation Report #042 03/29/2022

2021-2022 OCEAN ISLE BEACH —TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 29, 2022 Observation Report No.: 042
Observers: Adam Priest Commencement Date: November 16, 2021
Contract Date: 134
Arrival/Departure Times: 11:00— 15:45
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:
1 Feet, S
5-15 MPH, ENE
4+50 to 3+90
1+00 to 2+00 (concrete cap)
Today: 0 Tons (Size A)
Today: 100 Tons (Size B)
Today: N/A Sq. Ft.
Today: 0
To Date: 12,978 Tons (Size A)
To Date: 7,255 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 29, 2022 Observation Report No.: 042
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 Sampling
16. Was the constructed structure verified to meet the plans and specifications? Yes
Measurement: Visual comparison of the UAS orthomosaic with structure footprint.
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 and the top elevation was checked to be within a '4 inch of the design
elevation.
18. Were any photographs taken?
19. Was the drone flown today?
Detailed Observations:
Yes
No
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 observed working between Sta. 4+50 and Sta.
3+90 (See Photos #6 & #7).
2. Armor stones (Size B) were observed being delivered to the project site via flatbed tractor trailer from the
Rockingham Vulcan quarry. All stones appeared to be within the size range for the Size B stone (See Photo #8).
3. Construction signs were observed in place and fencing was observed around the 4th Street and Shallotte Blvd
staging and laydown areas.
4. No work was observed at the Shallotte Blvd staging area. Signs and barricades were observed in place.
5. CDC was observed placing and grading sand around the seaward perimeter of the installed sheet piles as a barrier
to prevent water from flooding the sheet pile work area during high tide.
6. 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 between Sta. 1+00 and 2+00. 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.
7. McLean's crew was observed pouring concrete between Sta. 1+00 and 2+00 and finishing the top of the concrete
cap between Sta. 1+00 to Sta. 2+00 (See Photos #2 - #5).
8. 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.
9. The top elevation was checked observed to be within less than % inch of the top of cap design elevation.
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2021-2022 OCEAN ISLE BEACH -TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 29, 2022 Observation Report No.: 042
10. Materials Testing Technicians from ECS Limited and Carolina Ready Mix were observed on -site and testing the
concrete slump and air content. The technicians also made 5 concrete cylinders (7 day, 14 day, and three 28 day
cylinders) that will be used for compressive strength testing.
11. An escarpment approximately 50 feet in length and approximately 18-24 inches high was observed at the
apparent corner of the accretion fillet shoreline closest to the rubblemound structure.
12. 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.
13. CDC crews were observed placing and grading sand on top of approx. 150 ft. of Town -owned sandbags along
the east end of 3rd St.
Items Discussed with Contractor's Superintendent, Surveyor, Regulatory Agencies, ... etc.:
1. Prior to testing and pouring the concrete for the concrete cap, Andy Snyder (Carolina Ready Mix) added 300 ml of
superplasticizer to the concrete in the first truck. After the superplasticizer was added, the slump test was
performed and indicated the concrete had a 6" slump. No admixture was added to second concrete truck.
2. Adam Priest (CPE) spoke with Richard Mattingly (CDC) regarding the stone fragments that were scattered near
Sta. 3+00 on the eastern side of the structure. Richard indicated that the CDC crew spent several hours yesterday
picking up the fragments and placing them in a stockpile higher up on the beach. Richard mentioned that the
crew would continue to pick up the fragments and place them in the stockpile to be removed from the project
site at the end of construction.
3. Adam Priest (CPE) and Richard Gunn (CDC) walked the rubblemound structure and identified several locations
where smaller stone (non -spec) were placed in gaps between larger stones that meet the project specifications.
Richard mentioned that once construction was complete on the structure that we could inspect and remove any
non -spec stones from the structure.
4. Richard Mattingly (CDC) indicated that the Waterway survey crew was on -site yesterday (3/28) performing as -
built surveys of the structure.
5. Richard Mattingly (CDC) asked if CDC could begin pushing sand to fill in the gap between the stockpiled sand and
the rubblemound structure. Adam Priest (CPE) indicated that he needed to review the final survey data of the
structure cross -sections before the gap could be filled with sand.
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, (3) 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 29, 2022 Observation Report No.: 042
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Photo 1. Ocean conditions at 11:45 am.
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2021-2022 OCEAN ISLE BEACH -TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 29, 2022
Observation Report No.: 042
Photo 3. View of the form for the next 100 ft. section of the concrete cap between Sta. 1+00 and2+00.
Photo 4. Concrete being poured for the sheet pile wall concrete cap, looking north near Sta. 2+00.
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2021-2022 OCEAN ISLE BEACH -TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 29, 2022
Observation Report No.: 042
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Photo 5. View of the concrete placed within the forms of the concrete cap looking north near Sta. 1+50.
Photo 6. CDC excavator placing and arranging armor stones between Sta. 4+50 and Sta. 3+90.
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2021-2022 OCEAN ISLE BEACH -TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 29, 2022
Observation Report No.: 042
Photo 7. View of the rubblemound structure looking south, near Sta. 4+50.
Photo 8. Flatbed tractor trailers delivering Size B armor stone from the Vulcan Rockingham quarry.
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2021-2022 OCEAN ISLE BEACH -TERMINAL GROIN PROJECT
CONSTRUCTION OBSERVATION REPORT
Date: March 29, 2022
Observation Report No.: 042
Photo 9. View of the sand placed on Town owned sandbags at the end of 3rd Street.
Photo 10. View of the terminal groin project site looking southwest.
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