6 2022 Diversion Channel FCR_Part_2.pdf

Final Construction Report Net River Dam Channel Construction Project Michigan Department of Natural Resources January 18, 2023

GEI Consultants of Michigan, P.C.

Appendix F

Daily Field Reports

FIELD OBSERVATION REPORT

Project: Net River Concrete Notch Project Date: 2022.10.03

Client: Michigan Dept. of Natural Resources Weather: Sunny 65 deg. F

Contractor: Terrazzo Concrete Restoration (TCR) Report No: 1

Location: - Page: 1 of 7

Arrival Time: 12:00 pm GEI Project No: 2201765

Departure Time: 5:00 pm

Purpose of Site Visit:

Construction observation and oversight of concrete notch construction.

Observations:

TCR: Mike – foreman, 1 operators, and 2 laborers

Broderson Crane, generator, miscellaneous hand tools and small equipment (pumps, etc.)

GEI: Jake Pieti

DNR: Brad Johnson

Arrived onsite at 12:00 pm. Met with TCR foreman, Mike. Discussed work plan and project drawings and specifications.

Reviewed temporary bridge set up. MD Contracting (MD) set the bridge last Friday afternoon. The bridge was set on top of stacked construction matting, allowing the bridge to span over the culverts, approximately centered on the concrete intake structure. Aggregate ramps on and off the bridge were constructed of coarse aggregate (~3” max aggregate size) capped with

MDOT 22A road gravel.

MD has been hauling heavy rip rap and stockpiling on south side of parking lot at the dam’s east abutment. GEI performed a manual gradation per the specifications by random selection of 30 stones, measured as follows:

Stone Number Length (in) Width (in) Height (in)

1 34 18 18

2 25 18 14

3 32 24 24

4 22 20 18

5 24 17 16

6 28 26 26

7 28 18 14

8 35 34 12

9 24 20 12

10 36 22 12

11 36 21 21

12 32 32 14

13 38 24 20

14 42 21 13

15 28 21 14

16 32 24 24

17 35 24 12

18 44 26 20

19 26 20 14

20 46 30 26

21 38 24 18

22 24 18 14

23 48 26 26

24 35 30 18

25 35 20 12

26 20 18 18

27 34 33 32

28 40 22 20

29 30 22 14

30 30 17 16

Average stone dimension: 24.5 inches

Brad Johnson (DNR) posted the EGLE JPA and Baraga County SESC permits on site.

Reviewed condition of intake structure – observed one additional spall on the outside right wall at the connection to the downstream headwall. No reinforcement was exposed. The steel trash rack had some rust nodules and corrosion observed below the normal water line. The reservoir levels were approximately 8-10” above the sill of the existing intake structure concrete notch.

TCR used a grinder with a cut off wheel to cut the trash rack structure to facilitate removal. The crane was unable to be immediately offloaded from the low boy truck as the truck had a dysfunctional hydraulic system and could not lower the trailer to offload. A secondary truck arrived at ~3:30 pm and the crane was offloaded. The crane was set up on the west end of the temporary bridge structure.

While waiting for the crane to be offloaded, TCR set a ladder for access into the intake structure. Several sandbags were set in the invert of the right culvert. The water levels in the culvert quickly began to rise and flow upstream back into the intake structure.

To alleviate the backflow, the sandbag cofferdam was moved several feet upstream of the culvert inverts and connected to the sand bag cofferdam beneath the intake concrete beam strut between the culverts. Once the sand bags were placed to an elevation greater than the static water level within the intake, geotextile fabric was used to line the area. The fabric was connected to the concrete with tapcons and wrapped over and around the sand bags. A submersible pump was set up within the fabric lined area with a hose discharging effluent into a filter bag. The filter bag was placed at upstream toe of embankment approximately thirty feet right of intake. No excessive turbidity nor erosive flows were observed at any time during the day.

TCR set up scaffolding within the intake structure and began to lay out the demolition extents. The first cut was laid out to be a horizontal cut ~4 inches above the reservoir waterline from the inside of the intake. The demolition began by coring two 1.5” diameter holes at the furthest left and right extents of the anticipated cut. The first concrete core had 11.5 inches of core recovered with 3.5” of clear cover upstream of a 1/2” diameter reinforcing bar.

TCR reported the intention to core additional holes before cutting horizontally and installing steel shims and cutting vertically to remove pieces per the approved work plan. All concrete debris will be disposed of offsite.

GEI left the site at 5:00 pm.

Photo 1: Dewatered reservoir looking upstream from embankment crest.

Photo 2: Temporary bridge installed by MD Contracting Friday. Note bridge spanning over culverts and repair areas without loading . Photo looking upstream and east from downstream slope.

Photo 3: Stockpiled heavy rip rap on southern edge of parking lot. Note six feet long engineer’s tape in photo for size reference.

Photo 4: Intake trash rack steel cut and prepared for removal.

Photo 5: Installing SESC measures for concrete turbidity containment within intake structure. Note geotextile fabric overlying sand bag cofferdam. Fabric being fastened to concrete by tapcons. Photo looking at inside face of upstream wall in location of future concrete notch.

Photo 6: Additional concrete spall observed in downstream left outside wall corner. No reinforcement observed.

Photo 7: Filter bag installed discharging effluent at upstream right embankment toe. Note intake location in background.

Photo 8: TCR setting up crane for concrete and steel removal. Photo looking downstream from operator’s walkway of intake structure.

Photo 9: TCR coring the concrete to facilitate the horizontal cut immediately above waterline. Note the scaffolding is immediately above the SESC containment structure.

Photo 10: Concrete core indicating presence of 1/2” diameter reinforcement with at least three inches of clear cover on upstream face of wall.

Field Engineer: Jacob Pieti, P.E. Date: 2022.10.03

Approved: Kevin Roell, P.E. Date: 2022.10.03

Project: Net River Concrete Notch Project Date: 2022.10.04

Client: Michigan Dept. of Natural Resources Weather: Sunny 65°F

Contractor: Terrazzo Concrete Restoration (TCR) Report No: 2

Location: Net River Dam, Covington, MI Page: 1 of 3

Arrival Time: 1:00 pm GEI Project No: 2201765

Departure Time: 4:30 pm

Purpose of Site Visit:

Construction observation and oversight of concrete notch construction.

Observations:

TCR: Mike – foreman, 1 operators, and 2 laborers

Equipment: Broderson Crane, generator, Husqvarna concrete saw, Hilti TE 70 hammer drill, miscellaneous hand tools and small equipment (pumps, etc.)

GEI: Jacob Burch

DNR: Not on site

Arrived onsite at 1:00 pm. Met with TCR foreman, Mike Begres. Discussed work plan and project drawings and specifications.

GEI arrived on site and one wall section of three was already removed. GEI obtained the second concrete core that had been drilled into the wall. TCR mentioned how concrete seems soft and has trouble holding an anchor. GEI washed a side of concrete section that was removed to determine horizontal reinforcement. On the upstream face, #4 spaced roughly 12-inches on center

(O.C.). On the downstream face #5 bar spaced roughly 12-inches O.C. Once all three sections were removed and TCR was done cutting concrete, the vertical reinforcement was able to be determined. GEI observed #4 bar on both the upstream and downstream faces, spaced 24-inches O.C. in a staggered pattern. Jacob Burch discussed this with the Engineer of Record, Richard

Price, and determined the reinforcement to be OK based on the analysis. The wall sections demolished on 10/4/2022 were only 3-feet 6-inches of the 5’ total height to be demolished. TCR will construct a wooden bulkhead and use hydraulic cement to seal the edges. Once the bulkhead is sealed off, TCR will finish the demolition to the full 5-foot notch depth.

GEI left the site at 4:30 pm.

Photo 1: Demolition progress when GEI arrived on site.

Photo 2: Side view of demolished section

#5 BAR #4 BAR

Photo 3: View of the vertical reinforcement

Field Engineer: Jacob Burch, E.I.T. Date: 2022.10.05

Approved: Jacob Pieti, P.E. Date: 2022.10.06

#4 BAR

#4 BAR #4 BAR

#4 BAR

Project: Net River Concrete Notch Project Date: 2022.10.06

Client: Michigan Dept. of Natural Resources Weather: Rain 45°F

Contractor: Terrazzo Concrete Restoration (TCR) Report No: 2

Location: Net River Dam, Covington, MI Page: 1 of 7

Arrival Time: 11:45 am GEI Project No: 2201765

Departure Time: 2:15 pm

Purpose of Site Visit:

Construction observation and oversight of concrete notch construction/steel stoplog slot installation.

Observations:

TCR: Mike – foreman, and 4 laborers(Luke, Michael, Stan, 1 other)

Equipment: Broderson Crane, generator, Husqvarna concrete saw, Hilti TE 70 hammer drill, miscellaneous hand tools and small equipment (pumps, etc.)

GEI: Pat Dowling

DNR: Not on site

GEI arrived onsite at 11:45 am. Met with TCR foreman, Mike Begres. Pat (GEI) and Mike(TCR) immediately discussed a question of inconsistent concrete thickness and relation to drawing dimensions. It was noted that the intake concrete thickness was inconsistent and would cause a dimensional conflict. Either the 3-1/2” clear cover over the epoxied anchors, or 1” downstream offset to the end of the bent plate member would need to be adjusted. After discussion with project engineer Jake P (GEI) over the phone, it was determined that the 3-1/2” clear cover thickness was the critical dimension that must be maintained, and that the 1 inch offset from the downstream edge of the wall could be adjusted.

GEI arrived on site and all concrete demo had been complete, and holes for each epoxied anchor had been drilled. At this point, the steel stoplog slots had been lowered into the intake and placed up against the sides of the notch to check flush fit up. Exposed reinforcement from the notch cuts were coated with epoxy prior to stoplog slot installation. Horseshoe shaped hydraulic grout was placed on the “crest” of the notch to protect exposed reinforcement on the horizontal cut. GEI observed the application of a bead of sealant to each stoplog slot. The cold weather had caused the sealant to thicken and become difficult to squeeze through the caulking gun. Other tubes of sealant were kept a TCR work truck to keep warm. GEI confirmed the sealant product was

Aquaflex, Aquabond 8000. After the first bead of sealant was applied, TCR began to place epoxy into each anchor hole and set the

1/2” diameter threaded rod anchors. During application of the epoxy to the left stoplog slot, TCR peeled back the slot and applied another thick bead of sealant to the slot downstream of the anchors to achieve full sealant consistency. Epoxy and anchors were set, and a brace was spanned between the two stoplog slots to pin them in place. TCR took lunch while the epoxy cured. GEI confirmed the epoxy as Hilti Hit HY-200A.

After lunch, TCR began to remove all unnecessary hand tools and equipment from the inlet. The 2 inch pump running to the filter bag was shut down and hoses put away. Horseshoe shaped placements of hydraulic grout were removed. Pat D (GEI) and Mike

B(TCR) discussed the plan for the rest of the day. Mike B agreed that they wanted to be finished that day, and planned to finish torquing down stoplog slots after full cure of epoxy, applying the upstream bead of sealant, and then proceeding to break down all SESC measures and remove the bulkhead from the stop log slot, with full demobilization to finish that afternoon/evening.

GEI left the site at 2:15 pm.

Photo 1: Construction progress when GEI arrived on site.

Photo 2: TCR applying sealant to left slot.

Photo 3: Applying sealant to left stop log slot.

Photo 4: Hilti Epoxy (HIT HY 200-A)

Photo 5: Aquabond Aquaflex AFW-8000

Photo 6: Applying sealant to right slot.

Photo 7: Applying epoxy to right slot anchor holes.

Photo 8: Applying epoxy and setting anchors on left slot.

Photo 9: More sealant applied to left slot after first application.

Photo 10: Anchors set, and slots braced while anchor epoxy cures.

Field Engineer: Pat Dowling, E.I.T. Date: 2022.10.06

Approved: Jacob Pieti, P.E. Date: 2022.10.06

Project: Net River Dam Diversion Channel Date: 2022.10.24

Client: Michigan Department of Natural Resources Weather: Cloudy, 56°

Contractor: MD Construction Report No: 1

Subcontractor: Trimedia Environmental Engineering

Location: Covington, MI Page: 1 of 1

Arrival Time: 8:30 am GEI Project No: 2201765

Departure Time: 2:30 pm GEI Equipment:

Prep and Report Time: 0.5

Travel Time: 3.0

Total Time: 10.5

Purpose of Site Visit:

Field Observation and Documentation

Observations:

GEI Traveled to the site from Marquette, MI.

Obtained sample S-1 of 3 ½” minus crushed stone proposed to be used as bedding stone. Returned to Marquette laboratory for gradation analysis.

MD Construction: Mike Delene – Owner, 2 Laborers

Equipment: 2 Excavators – Caterpillar 335F and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader –

Caterpillar 950M, 1 Skidder – John Deere 648H, 3 Off Road Dump Trucks – 2 John Deere 250D, 1 Volvo A25F

3 loads of 4AA crushed stone on site, not approved. MDC submitted sample S-1 for gradation analysis.

Heavy rip rap up to 4’ stockpiled on site for lining diversion channel and slope protection.

Notch has been cut in upstream concrete on the left side of the structure and stop log channels installed by TCR

(Terrazo Concrete Rehabilitation).

MDC requested alignment of diversion channel be offset approximately 15’ in a westerly direction to avoid interference with the temporary bridge already installed. MDC to submit an RFI to GEI regarding this issue. Discussed with Jake

Pieti – GEI via phone. Coordinates provided to surveyor to shift the alignment at station 0+00 and PI at station 1+21.77, 15’ perpendicular to the to the original design channel. The P.O.E. at station 1+83 on the downstream end was not offset. Trimedia completed re-staking as noted below.

1:30 pm MDC clearing the right side of the dam upstream and downstream and installing silt fence. Installed approximately 135’ upstream and left of cofferdam alignment and approximately 300’ downstream and right of the diversion channel.

Trimedia: Pete Cittadino – Surveyor on site 7:30 am to 1:30 pm.

Equipment: Trimble GPS

Set additional control points, and 2 benchmarks on the upstream and downstream concrete head walls and provided an elevation for control point CP106. Staked centerline and slopes of diversion channel, and cofferdam alignment. Re-staked the revised centerline from coordinates received via phone to offset approximately in a westerly direction at 90 degrees to the north leg of the original alignment due to interference with the temporary bridge over the existing CMP culverts.

Photo 1: View of existing concrete inlet structure, looking upstream.

Photo 2: View of existing concrete outlet structure, looking upstream right.

Photo 3: View of existing access road and stockpiled heavy rip rap on site, looking left/east.

Photo 4: Clearing and trenching to install silt fence upstream right of dam, looking upstream/right

Photo 5: Clearing and trenching to install silt fence downstream of dam, looking downstream.

Field Engineer: Bruce D. Peterson Date: 2022.10.24

Approved: Jacob E. Pieti Date: 2022.10.26

Project: Net River Dam Diversion Channel Date: 2022.10.25

Client: Michigan Department of Natural Resources Weather: Cloudy, 46° - 48°, Calm

Subcontractor:

Location: Covington, MI Page: 1 of 1

Arrival Time: 11:30 am GEI Project No: 2201765

Departure Time: 1:30 pm GEI Equipment:

Prep and Report Time: 0.5

Travel Time: 3.0

Total Time: 5.5

Purpose of Site Visit:

Field Observation and Documentation

Observations:

GEI Traveled to the site from Marquette, MI.

MD Construction: Mike Delene – Owner, 2 Laborers, 1 Operator

Equipment: 2 Excavators – Caterpillar 335F and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader – Caterpillar 950M, 1 Skidder – John Deere 648H, 3 Off Road Dump Trucks – 2 John Deere 250D, 1 Volvo A25F

A load of timber equipment mats has been delivered to the site. 3 rolls of geotextile fabric also on site.

MDC installed approximately 150’ upstream and left of cofferdam alignment and approximately 150’ downstream and left of the diversion channel.

Removing boulders and gravel from the existing upstream slope and crest of the dam right of the outlet structure.

1:30 pm GEI departed the site.

Photo 1: View of existing dam crest, looking right.

Photo 2: Turbidity curtain and silt fence installed downstream of the existing dam, looking downstream right.

Photo 3: Turbidity curtain and silt fence installed upstream of the existing dam, looking upstream right.

Photo 4: Removing existing rip rap/boulders from the upstream slope of the dam, looking right.

Field Engineer: Bruce D. Peterson Date: 2022.10.25

Approved: Jacob E. Pieti Date: 2022.10.26

Project: Net River Dam Diversion Channel Date: 2022.10.27

Client: Michigan Department of Natural Resources Weather: Cloudy, 37° - 50°, Calm

Location: Covington, MI Page: 1 of 1

Arrival Time: 11:30 am GEI Project No: 2201765

Departure Time: 2:30 pm GEI Equipment:

Prep and Report Time: 1.0

Travel Time: 3.0

Total Time: 7.5

Purpose of Site Visit:

Field Observation and Documentation

GEI Traveled to the site from Marquette, MI.

MD Construction: Mike Delene – Owner, 2 Laborers, 1 Operator

Equipment: 2 Excavators – Caterpillar 335F and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader – Caterpillar 950M, 1 Skidder – John Deere 648H, 3 Off Road Dump Trucks – 2 John Deere 250D, 1 Volvo A25F

2 – 16 cyd Dump Trucks hauling in 3” minus filter stone and plain rip rap.

1:40 pm: A load of timber equipment mats has been delivered to the site. 5 additional rolls of geotextile fabric also on site.

MDC begin placing salvaged rip rap and filter stone from the upstream slope of the existing dam for the cofferdam, working upstream. Placed approximately 65’.

Repaired and graded access road to the site with the loader and smaller gravel stockpiled on site.

2:30 pm GEI departed the site.

Photo 1: View of 3” minus filter stone delivered to the site, looking southeasterly.

Photo 2: View of salvaged rip rap and boulders from the upstream slope of the existing dam, looking downstream southwest.

Photo 3: Permits for construction posted at the site, southwest.

Photo 4: Begin placement of salvaged rip rap/boulders from the upstream slope of the dam for the cofferdam, looking upstream/right.

Photo 5: Rip rap placed and covered with approximately 1’ of filter stone, looking upstream/right.

Field Engineer: Bruce D. Peterson Date: 2022.10.27

Approved: Jacob E. Pieti Date: 2022.10.31

Project: Net River Dam Diversion Channel Date: 2022.10.28

Client: Michigan Department of Natural Resources Weather: Cloudy, 42° - 60°, SE 5-10

Location: Covington, MI Page: 1 of 1

Arrival Time: 9:15 am and 4:15 pm GEI Project No: 2201765

Departure Time: 10:15 am and 5:00 pm GEI Equipment:

Prep and Report Time: 1.0

Travel Time: 4.0

Total Time: 7.5

Purpose of Site Visit:

Field Observation and Documentation

Observations:

GEI Traveled to the site from Marquette, MI. On site 9:15 am. No MDC personnel on site, GEI departed the site.

4:15 pm GEI returned to the site. Mike Delene and 1 operator on site.

MD Construction: 9:15 am. No MDC personnel on site. 4:15 pm Mike Delene – Owner, 1 Operator

Equipment: 3 Excavators – Caterpillar 335F, 323, and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader

– Caterpillar 950M, 1 Skidder – John Deere 648H, 3 Off Road Dump Trucks – 2 John Deere 250D, 1 Volvo A25F

2 – 16 Cyd Dump Trucks – Hauling in 3” Minus filter stone.

4:15 pm: MDC continue installing heavy rip rap for the cofferdam salvaged from the upstream slope of the existing dam and covering with approximately 1’ of filter gravel. Completed approximately 35’ of cofferdam from 10-27-22 working upstream.

5:00 pm GEI departed the site.

Photo 1: View looking downstream/south.

Photo 2: View of cofferdam construction completed on 10-27-22, looking upstream/right.

Photo 3: View of cofferdam construction completed on 10-27-22, looking upstream.

Photo 4: View of cofferdam continued construction completed, looking upstream/right.

Field Engineer: Bruce D. Peterson Date: 2022.10.28

Approved: Jacob E. Pieti Date: 2022.10.31

Project: Net River Dam Diversion Channel Date: 2022.10.31

Client: Michigan Department of Natural Resources Weather: Sunny 38° - 62°, Calm

Location: Covington, MI Page: 1 of 1

Arrival Time: 10:30 am GEI Project No: 2201765

Departure Time: 3:00 pm GEI Equipment:

Prep and Report Time: 2.0

Travel Time: 3.0

Total Time: 9.5

Purpose of Site Visit:

Field Observation and Documentation

GEI Traveled to the site from Marquette, MI. On site 10:30.

11:00 am: Weekly Progress Conference Call. Attended by MDNR, MDC, GEI. Please see meeting minutes for additional details.

MD Construction: 10:30 am Mike Delene – Owner, 1 Operator, 1 Laborer, 2 in afternoon

Equipment: 3 Excavators – Caterpillar 335F, 323, and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader

– Caterpillar 950M, 3 Off Road Dump Trucks – 2 John Deere 250D, 1 Volvo A25F

11:00 am: MDC continue installing heavy rip rap for the cofferdam salvaged from the upstream slope of the existing dam and covering with approximately 1’ of filter gravel on right/west end of cofferdam. Mucking out poor material upstream of cofferdam for placement of geotextile fabric and granular material from the existing right dam. Also mucking out corner downstream of cofferdam for access road.

12:40 pm: Begin placing geotextile fabric over filter gravel.

1:15 pm: Excavating right existing crest of dam granular material, begin placing over geotextile fabric. Majority completed by the end of the day. Install additional silt fence around poor material stockpile to northwest of the existing dam.

Installed timber mat road from the right downstream side of the cofferdam to the crest of the existing dam right of the temporary bridge to allow equipment access.

MDNR – Brad Johnson on site 2:00 pm to 2:30 pm.

3:00 pm GEI collected sample S-2 of the existing material from the right side of the existing dam, departed the site, and returned the soil sample to the Marquette laboratory for Modified Proctor testing to check density of the top of the cofferdam.

Photo 1: Cofferdam heavy rip rap covered with filter gravel progress, looking upstream/right.

Photo 2: Installing geotextile fabric over the filter gravel for the cofferdam, looking upstream/right.

Photo 3: Excavating the existing right side of the dam, placing material over the geotextile fabric, filter gravel, and heavy rip rap for the cofferdam, looking upstream/right.

Photo 4: Excavating the right side of the existing dam, looking right.

Photo 5: Continue placing material from the right side of the existing dam to the crest and upstream side of the cofferdam.

Field Engineer: Bruce D. Peterson Date: 2022.10.31

Approved: Jacob E. Pieti Date: 2022.11.02

Project: Net River Dam Diversion Channel Date: 2022.11.01

Client: Michigan Department of Natural Resources Weather: Sunny 38° - 62°, Calm

Location: Covington, MI Page: 1 of 1

Arrival Time: 8:30 am GEI Project No: 2201765

Departure Time: 3:00 pm GEI Equipment: Troxler 3440 #63797

Nuclear Density Gauge

Prep and Report Time: 0.5

Travel Time: 3.0

Total Time: 10.0

Purpose of Site Visit:

Field Observation and Documentation

GEI Traveled to the site from Marquette, MI. On site 8:30.

Reservoir Water Elevation = 1533.10’.

Completed density testing of granular material placed and compacted on crest of coffer dam with a Troxler 3440 nuclear density gauge. Obtained results of soil sample S-1 Modified Proctor Maximum Density = 114.3 lb/cft, Optimum Moisture = 12.5 %. Material at the crest has a different consistency than the sample submitted to the laboratory on 1—31-22. Pounded a Michigan Cone and obtained a Maximum Density = 127.7 lb/cft, Optimum Moisture = 13.0%. All tests conducted achieved greater than 95% of maximum density except at the right end tie in point at approximate station 0+60. MDC recompacted area and a retest will be conducted on 11-2-22.

MD Construction: 8:30 am Mike Delene – Owner, 2 Operators, 2 Laborers

Equipment: 3 Excavators – Caterpillar 335F, 323, and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader

Road Closed sign/barricade added near the entrance of the site access road at US141.

8:30 am: Discussed clearing limits for stockpiling better material salvaged from the right embankment excavation of the existing dam southeast of the existing parking lot. MDC began clearing with the dozer.

Checked the elevation of the top of the cofferdam to be approximately 1538.3’ with MDC Topcon laser level. Grubbed out topsoil downstream right of the diversion channel.

MDC continue excavating the right existing crest of dam to the limits of the diversion channel and approximately 3’ above grade. Hauling excavated material to clearing left of the dam and southeast of the existing parking lot with the off-road dump trucks.

A small amount of water observed to be standing at the toe of the cofferdam, no movement observed.

Inspection of the temporary bridge: Observed little deflection when traveled by the excavators or the loaded off-road dump trucks.

11:40 am: An additional load of wood equipment mats delivered to the site.

1:30 pm: Low boy on site to remove 2nd temporary steel bridge from the site, not needed at this time.

MDC added additional material to the upstream slope at the right end of the cofferdam to flatten and recompacted the crest with the excavator bucket.

3:00 pm GEI departed the site.

Photo 1: “Road Closed” sign added near intersection of the access road and US141, looking north.

Photo 2: View of cofferdam and timber mats placed on the downstream side, looking upstream/right.

Photo 3: Excavation of the existing right side of the dam, looking downstream/right.

Photo 4: View of the cofferdam and timber mat access road along the downstream side, looking downstream/left.

Photo 5: View of clearing southeast of the existing gravel parking lot for stockpiling excavated material from the existing right dam embankment, looking southeast.

Photo 6: Continued excavation of the right existing dam embankment for the diversion channel, looking downstream.

Photo 7: Continued excavation of the right existing dam embankment for the diversion channel, looking left.

Field Engineer: Bruce D. Peterson Date: 2022.11.01

Approved: Jacob E. Pieti Date: 2022.11.02

Summary of Site Visit on November 2, 2022

Prepared by: Geoff Kruger Attendees: Geoff Kruger Mike Delene – MD Contracting Inc.

Pete Cittadino - Trimedia

Re: Site Visit on Thursday November 2, 2022, Net River Dam, Covington, MI

Undersigned arrived on-site at 8:00 a.m and met with MD site supervisor, Mike Delene to review construction progress. The weather was cloudy with temperatures in the mid 40’s. Following is a summary of observations.

Overall the construction areas were tidy and available to observe. The temporary upstream cofferdam was in place with river water just touching the upstream toe. The area downstream of the cofferdam had water, but no observable flow. Suggest that Bruce Peterson record daily upstream and downstream river water levels during construction. Water was flowing over the new notch and existing stoplog slot to the left culvert. MD is utilizing timber crane mats to access the construction areas.

Trimedia slope staked the proposed channel alignment. GEI and MD discussed the approximate 7 foot proposed cut at the channel termination at the downstream river. Trimedia provided the river tailwater at this location to be 1530.6’ and the river depth in the main channel to be approximately 1528.0’. GEI suggests no excavation in river below normal tailwater elevation

1530.6 feet.

Based on actual surveyed ground elevations by Pete Cittadino, Trimedia, GEI suggests the following modifications to the finished riprap grade at the termination near the confluence with the existing river.

• Existing riverbank is at approximate proposed channel station 1+65. Existing tailwater elevation at this location is 1530.6’

• Change finished grade from elevation 1528.5’ to 1530.0’ at station 1+65 (ex. waterline).

Maintain station 0+14.8, elevation 1534.8’. Overall profile slope changes from 4.2% to 2.9%.

• Suggest no excavation below existing tailwater. Place fabric and smaller spec stone below water to approximate station 1+83. Stone shall positively drain from station 1+65 to 1+83.

MD agreed with approach and will follow up with a RFI request to capture in the construction documentation.

MD and GEI discussed construction schedule. MD planned to start channel stone lining at the downstream end and work upstream. MD plans to limit exposed final excavated grade and will line with stone as channel as work progresses upstream to the temporary cofferdam. MD estimated that channel stone placement could be completed by end of the week. Rain anticipated for Friday and the weekend. GEI discussed that the river levels are flashy and that seepage can be expected at the temporary cofferdam as the river levels increase. MD mentioned that they are prepared to handle the temporary cofferdam seepage (pumping to filter bags if needed).

Closing The undersigned left the site at 10:30 a.m. Attached are photographs from the site visit.

Please contact the undersigned if there are questions or clarifications to the issues described above.

Geoffrey L. Kruger, P.E.

cc: Bill Scullon, Michelle Crook, John DePue, Brad Johnson – DNR

Mike Delene – MD Jake Pieti, Bruce Peterson, Kevin Roell - GEI

Attachments: Photographs

Project: Net River Dam Diversion Channel Date: 2022.11.02

Client: Michigan Department of Natural Resources Weather: Sunny 43° - 65°, Calm, S 10-15

Subcontractor: Trimedia Environmental Engineering

Location: Covington, MI Page: 1 of 1

Arrival Time: 10:00 am GEI Project No: 2201765

Departure Time: 4:30 pm GEI Equipment: Troxler 3440 #63797

Nuclear Density Gauge

Prep and Report Time: 1.5

Travel Time: 3.0

Total Time: 11.0

Purpose of Site Visit:

Field Observation and Documentation

GEI Traveled to the site from Marquette, MI. On site 10:00.

Reservoir Water Elevation = 1533.06’. Tailwater Elevation = 1530.52’.

Geoff Kruger – GEI on site. Discussed diversion channel grade change from 4.2% to 2.9% to minimize impact to the tailwater area of the Net River as addressed in RFI #2.

Completed density re-testing of granular material placed and compacted on crest of cofferdam with a Troxler 3440 nuclear density gauge at approximate station 0+60. Ret-test greater than 95% of the maximum density as determined by the Michigan Cone Method.

MD Construction: 8:30 am Mike Delene – Owner, 1 Operators, 2 Laborers

Equipment: 3 Excavators – Caterpillar 335F, 323, and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader

Haul in 3 Lead with Trailer loads of Heavy Rip Rap. Continue hauling in 3” minus filter/bedding stone with 16 Cyd Dump Trucks.

10:00 am: MDC excavating downstream end of diversion channel at approximate station 1+65. Hauling spoils to the cleared area northwest of the dam and stockpiling.

12:20 pm: Begin placing geotextile fabric and bedding stone to the diversion channel outlet, working upstream.

1:00 pm: Placing plain rip rap at diversion channel outlet and heavy rip rap over bedding stone upstream. Grades of excavation and top of rip rap checked with MDC Topcon laser level.

2:30 pm: Added a 2nd turbidity curtain inside and upstream of the 1st piece installed at the diversion channel outlet.

Removed mats and began excavating the next section upstream.

4:30 pm: Placing geotextile fabric and bedding stone to approximate station 1+45.

A small amount of water observed to be standing at the toe of the cofferdam, no movement observed.

Inspection of the temporary bridge: Observed little deflection when traveled by the excavators or the loaded off-road dump trucks.

Trimedia: Pete Citandino – Surveyor on site at approximately 8:00 am. Re-staked hinge points and provided grades of the diversion channel as per Geoff Kruger – GEI.

4:30 pm GEI departed the site.

Photo 1: Overall view from the temporary bridge, looking right/upstream.

Photo 2: Overall view from the temporary bridge, looking right/downstream.

Photo 3: Excavating the diversion channel outlet at approximate station 1+65, looking downstream/right.

Photo 4: Placing geotextile fabric and 3” minus bedding stone at the diversion channel outlet, looking downstream/right.

Field Engineer: Bruce D. Peterson Date: 2022.11.02

Approved: Jacob E. Pieti Date: 2022.11.03

Project: Net River Dam Diversion Channel Date: 2022.11.03

Client: Michigan Department of Natural Resources Weather: Partly Cloudy, Rain, 53° - 69°, Calm

Location: Covington, MI Page: 1 of 1

Arrival Time: 9:00 am GEI Project No: 2201765

Departure Time: 4:30 pm GEI Equipment:

Prep and Report Time: 1.5

Travel Time: 3.0

Total Time: 12.0

Purpose of Site Visit:

Field Observation and Documentation

GEI Traveled to the site from Marquette, MI. On site 9:00 am.

Reservoir Water Elevation = 1533.03’. Tailwater Elevation = 1530.55’.

MD Construction: 8:30 am Mike Delene – Owner, 1 Operators, 2 Laborers, Dan Robillard – Project Manager on site 1:30 pm to 2:15 pm.

Equipment: 3 Excavators – Caterpillar 335F, 323, and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader

Continue hauling in plain rip rap with 16 Cyd Dump Trucks.

9:00 am: MDC excavating diversion channel from approximate station 1+45. Hauling spoils to the cleared area northwest of the dam and stockpiling.

10:00 pm: Placing geotextile fabric, bedding stone, and rip rap to 1+43 diversion channel working upstream.

12:00 pm: Excavating 1+45 to 1+22. Grades of excavation and top of rip rap checked with MDC Topcon laser level.

1:15 pm: Placing geotextile fabric, bedding stone, and rip rap to 1+22 diversion channel working upstream.

3:30 pm: Placing geotextile fabric, bedding stone, and rip rap from 1+22 to 1+05.

Inspection of the temporary bridge: Observed little deflection when traveled by the loaded off-road dump trucks.

MDNR: Michele Crook – Project Manager on site at approximately 12:45 pm.

4:30 pm GEI departed the site.

Photo 1: Continue excavating the diversion channel from approximate station 1+45, looking downstream/right.

Photo 2: View diversion channel progress, looking downstream/left.

Photo 3: View diversion channel progress, looking upstream.

Photo 4: Overall view of site, looking right.

Photo 5: Placing geotextile fabric and bedding stone 1+45 to 1+22, looking downstream/right.

Field Engineer: Bruce D. Peterson Date: 2022.11.03

Approved: Jacob E. Pieti Date: 2022.11.07

Project: Net River Dam Diversion Channel Date: 2022.11.04

Client: Michigan Department of Natural Resources Weather: Cloudy, Rain, 46° - 56°, N 5-10

Location: Covington, MI Page: 1 of 1

Arrival Time: 9:00 am GEI Project No: 2201765

Departure Time: 1:30 pm GEI Equipment:

Prep and Report Time: 1.0

Travel Time: 3.0

Total Time: 8.5

Purpose of Site Visit:

Field Observation and Documentation

Reservoir Water Elevation = 1533.23’. Tailwater Elevation = 1530.63’.

MD Construction: 8:30 am Mike Delene – Owner, 1 Operator, 2 Laborers

Equipment: 3 Excavators – Caterpillar 335F, 323, and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader

Continue hauling in plain rip rap and bedding stone with 16 Cyd Dump Trucks.

9:00 am: MDC adding bedding stone below wood mats for stability.

10:10 am: Continue excavating from 1+05 to 0+95

11:15 am: Placing geotextile fabric, bedding stone, and rip rap to 0+95 diversion channel, working upstream.

12:15 pm: Excavating 0+05 to 0+85. Grades of excavation and top of rip rap checked with MDC Topcon laser level.

Inspection of the temporary bridge: Observed little deflection when traveled by the loaded off-road dump trucks.

Photo 1: Continue excavating the diversion channel from approximate station 1+05 to 0+95, looking downstream/right.

Photo 2: View diversion channel progress, looking upstream.

Photo 3: View cofferdam, looking upstream.

Photo 4: View of spoils area northwest of project, looking upstream/right.

Photo 5: View of rip rap and bedding stone stockpiled in the existing parking lot, looking southeast.

Photo 6: Placing rip rap 1+05 to 0+95, looking right.

Field Engineer: Bruce D. Peterson Date: 2022.11.04

Approved: Jacob E. Pieti Date: 2022.11.07

Project: Net River Dam Diversion Channel Date: 2022.11.07

Client: Michigan Department of Natural Resources Weather: Cloudy, Partly Cloudy, 33°, N10-

Location: Covington, MI Page: 1 of 1

Arrival Time: 10:00 am GEI Project No: 2201765

Departure Time: 1:30 pm GEI Equipment:

Prep and Report Time: 2.0

Travel Time: 3.0

Total Time: 8.5

Purpose of Site Visit:

Field Observation and Documentation

GEI Traveled to the site from Marquette, MI. On site 10:00 am.

Reservoir Water Elevation = 1534.37’. Tailwater Elevation = 1531.19’.

11:00 am: Weekly Construction Progress Meeting. Attendees include MDNR, MDC, and GEI personnel. Please see meeting minutes for additional details.

GEI obtained 2 soil samples of existing right embankment material. S-3 from the existing right embankment exposed face from excavating the diversion channel and S-4 from material previously excavated and stockpiled southeast of the existing gravel parking lot. Larger cobble 6” to 12” diameter present throughout the existing soil material generally not included in soil samples. Samples delivered to the Marquette laboratory for gradation analysis.

MD Construction: Mike Delene – Owner, 1 Operator, 2 Laborers

Equipment: 3 Excavators – Caterpillar 335F, 323, and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader

Continue hauling in plain rip rap and bedding stone with 16 Cyd Dump Trucks.

10:00 am: MDC placing geotextile fabric, bedding stone, and rip rap to 0+85 to 0+65 diversion channel, working upstream.

11:30 am: Excavating, placing geotextile fabric, bedding stone, from approximate station 0+65 to 0+53 diversion channel.

1:00 pm: Placing rip rap to 0+65 to 0+53 diversion channel, working upstream. Grades of excavation and top of rip rap checked with MDC Topcon laser level.

2:30 pm: Excavating 0+53 to 0+45. Placed Geotextile fabric, bedding stone, and rip rap.

Inspection of the temporary bridge: Observed little deflection when traveled by the loaded off-road dump trucks.

Photo 1: Overall view, looking downstream/right.

Photo 2: Overall view, looking right.

Photo 3: Placing rip rap for diversion channel 0+85 to 0+65, looking right.

Photo 4: Continue excavating diversion channel 0+65 to 0+53, looking right.

Photo 5: Existing right embankment material where soil sample S-3 was obtained for gradation analysis, looking downstream.

Photo 6: Existing right embankment material, previously excavated for the diversion channel and stockpiled southeast of the existing parking lot for possible future use. Location of where soil sample S-4 was obtained for gradation analysis, looking downstream.

Photo 7: Continued progress of the diversion channel, looking right.

Field Engineer: Bruce D. Peterson Date: 2022.11.07

Approved: Jacob E. Pieti Date: 2022.11.08

Project: Net River Dam Diversion Channel Date: 2022.11.08

Client: Michigan Department of Natural Resources Weather: Partly Cloudy, 34°-44°, SE 10-20

Location: Covington, MI Page: 1 of 1

Arrival Time: 9:00 am GEI Project No: 2201765

Departure Time: 3:00 pm GEI Equipment:

Prep and Report Time: 1.0

Travel Time: 3.0

Total Time: 10.0

Purpose of Site Visit:

Field Observation and Documentation

Reservoir Water Elevation = 1534.13’. Tailwater Elevation = 1531.13’.

Equipment: 3 Excavators – Caterpillar 335F, 323, and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader

Continue hauling in plain rip rap with 16 Cyd Dump Trucks.

9:00 am: MDC Excavating station 0+45 to 0+35 diversion channel, working upstream.

9:30 am: Placing geotextile fabric and bedding stone station 0+45 to 0+35.

10:30 am: Placing heavy rip rap station 0+45 to 0+35 diversion channel.

12:00 pm: Excavating station 0+35 to 0+20 diversion channel. Grades of excavation and top of rip rap checked with MDC Topcon laser level.

1:00 pm: Placing geotextile fabric, bedding stone, and rip rap.

2:00 pm: Excavating station 0+20 to 0+10 diversion dam. Placing geotextile fabric, bedding stone, and rip rap.

3:00 pm: Excavating the right corner upstream of 0+00 to turn the diversion channel toward the cofferdam.

Inspection of the temporary bridge: Observed little deflection when traveled by the loaded off-road dump trucks.

Photo 1: Overall view of dam crest, looking left.

Photo 2: Overall view of dam crest and project, looking right.

Photo 3: Progress of the diversion channel 0+45 to 0+35, looking upstream/right.

Photo 4: Continue excavating diversion channel 0+35 to 0+20, looking upstream/right.

Photo 5: Continue placing geotextile fabric and bedding stone 0+35 to 0+20, looking upstream/right.

Photo 6: View of diversion channel progress, looking right.

Photo 7: View of diversion channel progress, looking downstream/right.

Field Engineer: Bruce D. Peterson Date: 2022.11.08

Approved: Jacob E. Pieti Date: 2022.11.11

Project: Net River Dam Diversion Channel Date: 2022.11.09

Client: Michigan Department of Natural Resources Weather: Rain, 43°, Calm

Location: Covington, MI Page: 1 of 1

Arrival Time: 9:00 am GEI Project No: 2201765

Departure Time: 10:30 am GEI Equipment:

Prep and Report Time: 1.5

Travel Time: 3.0

Total Time: 6.0

Purpose of Site Visit:

Field Observation and Documentation

Reservoir Water Elevation = 1534.02’. Tailwater Elevation = 1531.13’.

MD Construction: Mike Delene – Owner, 2 Operator, 2 Laborers

Equipment: 3 Excavators – Caterpillar 335F, 323, and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader

Continue hauling in plain rip rap with 16 Cyd Dump Truck.

9:00 am: MDC Has keyway in place at inlet to diversion channel near station 0+00, heavy rip rap in place, continue placing plain rip rap.

10:30 am: Placing heavy rip rap on right slope of the diversion channel to obtain 8’ minimum above the channel bottom and plain rip rap to the top of the right slope.

10:30 am GEI departed the site.

Photo 1: Overall view of diversion channel, looking downstream/right.

Photo 2: Overall view of diversion channel, looking upstream/right.

Photo 3: Progress of the diversion channel near station 0+00 looking upstream/right.

Field Engineer: Bruce D. Peterson Date: 2022.11.09

Project: Net River Dam Diversion Channel Date: 2022.11.10

Client: Michigan Department of Natural Resources Weather: Rain, Cloudy 45°, NE 10-15

Location: Covington, MI Page: 1 of 1

Arrival Time: 8:15 am GEI Project No: 2201765

Departure Time: 2:15 pm GEI Equipment: Trimble R10 GPS

Prep and Report Time: 1.0

Travel Time: 3.0

Total Time: 10.0

Purpose of Site Visit:

Field Observation and Documentation

GEI picked up GPS equipment from the Marquette office, traveled to the site. On site 8:15 am.

Reservoir Water Elevation = 1533.98’. Tailwater Elevation = 1531.16’.

Jake Pieti – GEI on site 9:00 am to 10:15 am. Discussed extending the right inlet of the diversion channel rip rap to tie into the cofferdam rip rap at approximate plan elevation 1543.8’ and the left side of the diversion channel to extend across the upstream end of the portion of the cofferdam to be left in place and around the left slope to protect it from washout when stop logs are placed.

GEI also began a GPS as-built topographic survey of the right side of the diversion channel rip rap and part of the left side, and existing ground for future design purposes.

Equipment: 3 Excavators – Caterpillar 335F, 323, and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader

Continue hauling in filter stone with 16 Cyd Dump Truck.

8:15 am: MDC delivered seed and mulch to the site and a blower for the mulch. Seed delivered is MDOT Roadside mix as specified and a mixture of other seed including winter wheat and winter rye. Installed approximately 100’ of additional silt fence upstream of the cofferdam and smoothed out slope to minimize runoff downstream side of silt fence and turbidity curtain. Hand broadcast seeded and mulched spoil piles and cleared areas northwest and southwest of the project site. Majority completed by 12:30 pm.

12:30 pm: Removing wood timber mats from right of the diversion channel and hauling east of the existing gravel parking lot and stockpiling, seeded and mulched areas where mats were removed.

10:30 am: Placing heavy rip rap on right slope of the diversion channel to obtain 8’ minimum above the channel bottom and plain rip rap to the top of the right slope.

2:15 pm GEI departed the site.

Photo 1: Delivery tag from seed bag used for seeding and mulching.

Photo 2: Overall view of diversion channel, looking downstream/right.

Photo 3: Progress of the diversion channel near station 0+00 looking upstream/right.

Photo 4: View of the existing dam crest, looking right.

Photo 5: View of the diversion channel from the inlet end, looking downstream.

Photo 6: View of the diversion channel, looking right.

Photo 7: View of seeding and mulching northwest and west of diversion channel, looking upstream/right.

Photo 8: View of seeding and mulching of spoil pile and cleared area northwest of the project looking northwest/upstream.

Photo 9: View of seeding and mulching of spoil pile and cleared area souththwest of the project looking southwest/downstream.

Photo 10: View of diversion channel, looking left.

Field Engineer: Bruce D. Peterson Date: 2022.11.10

Project: Net River Dam Diversion Channel Date: 2022.11.11

Client: Michigan Department of Natural Resources Weather: Snow, Cloudy 33°-28°, NW 10-

Location: Covington, MI Page: 1 of 1

Arrival Time: 9:00 am GEI Project No: 2201765

Departure Time: 2:30 pm GEI Equipment: Trimble R10 GPS

Prep and Report Time: 1.0

Travel Time: 3.0

Total Time: 10.5

Purpose of Site Visit:

Field Observation and Documentation

GEI traveled to the site. On site 9:00 am.

Reservoir Water Elevation = 1534.79’. Tailwater Elevation = 1531.4’.

GEI and MDC discussed diversion channel inlet apron from station 0+00 to cofferdam area, approximately 15’ to 30’ wide. Discussed with Geoff Kruger via phone. Excavation to a depth of 3’ with 1’ of bedding stone and 2’ of smaller heavy rip rap choked with plain rip rap is acceptable.

GEI also continued a GPS as-built topographic survey of the right side of the diversion channel rip rap and part of the left side, and existing ground for future design purposes.

MD Construction: Mike Delene – Owner, off site at 9:30 am, Bill Delene – Foreman/Operator on site 9:20 am, 1 Operator, 2 Laborers

Equipment: 3 Excavators – Caterpillar 335F, 323, and 349F, 2 Dozers – John Deere 700K, Caterpillar 6DN, 1 Loader

Continue hauling in filter stone with 16 Cyd Dump Truck.

9:30 am: Placing heavy rip rap on right slope. Excavating between the diversion channel 0+00 and the cofferdam, placing geotextile fabric, bedding stone, heavy rip rap, and plain rip rap, working right to left.

11:30 am: Plutchak on site removing Broderson Crane used to for right culvert inlet modifications.

12:30 pm: Continue excavating between diversion channel 0+00 and the cofferdam, placing geotextile fabric, bedding stone, heavy rip rap, and plain rip rap. Grades of excavation and top of rip rap checked with MDC Topcon laser level.

Excavated material hauled to the stockpile area southeast of the gravel parking lot with the off road trucks.

Photo 1: Excavating between diversion channel station 0+00 and the cofferdam, looking upstream/right.

Photo 2: View of culvert outlet, looking downstream.

Photo 3: Placing geotextile fabric, bedding stone, heavy rip rap, and plain rip rap for the diversion channel inlet between station 0+00 and the cofferdam, looking downstream.

Photo 4: Continue placing geotextile fabric, bedding stone, heavy rip rap, and plain rip rap for the diversion channel inlet between station 0+00 and the cofferdam, looking downstream.

Field Engineer: Bruce D. Peterson Date: 2022.11.11

Approved: Jacob E. Pieti Date: 2022.11.28

Project: Net River Dam Diversion Channel Date: 2022.13.11

Client: Michigan Department of Natural Resources Weather: Snow, Cloudy 28°, Calm

Location: Covington, MI Page: 1 of 1

Arrival Time: 1:00 pm GEI Project No: 2201765

Departure Time: 1:30 pm GEI Equipment: Trimble R10 GPS

Prep and Report Time: 2.5

Travel Time: 3.0

Total Time: 6.0

Purpose of Site Visit:

Field Observation and Documentation

GEI traveled to the site. On site 1:00 pm.

GEI obtained photographs of work completed on 11-11-22 prior to removal of cofferdam.

MD Construction: Mike Delene – Owner, on site at 1:45 pm, Photo 1: Stockpile area southeast of the gravel parking lot, looking west.

Photo 2: Stockpile area southeast of the gravel parking lot, looking southeast.

Photo 3: Gravel parking lot, looking west.

Photo 4: Crest of the dam, looking right.

Photo 5: View of the cofferdam and diversion channel, looking upstream/right.

Photo 6: View of the diversion channel, looking right.

Photo 7: View of the diversion channel, looking downstream.

Photo 8: View of the upstream face of the cofferdam and the existing dam, looking downstream/left.

Photo 9: View of cleared areas right of the existing project, cofferdam, and diversion channel, looking right.

Photo 10: View of diversion channel, looking downstream/right.

Field Engineer: Bruce D. Peterson Date: 2022.11.13

Approved: Jacob E. Pieti Date: 2022.11.28

Project: Net River Dam Diversion Channel Date: 2022.11.14

Client: Michigan Department of Natural Resources Weather: Cloudy 25°, NE 10-15

Location: Covington, MI Page: 1 of 1

Arrival Time: 8:00 am GEI Project No: 2201765

Departure Time: 2:30 pm GEI Equipment: -

Prep and Report Time: 1.0

Travel Time: 2.5

Total Time: 10.0

Purpose of Site Visit:

Field Observation and Documentation

GEI traveled to the site. On site 8:00 am.

Reservoir Water Elevation = 1533.04’. Tailwater Elevation = 1530.83’.

MDNR: Bill Scullon, Brad Johnson, John Depue

Removed steel angles (trashrack) from the site. Discussed fabricating and getting stoplogs onsite with Mike (MD).

Equipment: 3 Excavators – Caterpillar 335F, 323, and 349F, 1 Dozer – Caterpillar 6DN, 1 Loader – Caterpillar 950M, 2 Off Road Dump Trucks – John Deere 250D, 1 Volvo A25F

Continued hauling in filter stone with 16 Cyd Dump Truck.

Hauling construction timber matting offsite with log trucks. Demobilized dozer, excavator from site with low boy truck.

8:00 am: GEI reviewed the rip rap lining the reservoir floor between the cofferdam and bypass channel.

9:00 am: MDC began to remove cofferdam. Granular fill and filter gravel materials were removed with…