https://www.kogaengineering.com/home daily 1.0 2024-04-09 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/a3167d4c-95bf-4948-9aa8-005442522547/Kamananui+Valley+Road+Repair+%28O%27ahu%29.JPG Home https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/49d6db76-a1ec-402f-8579-411b424cf1a1/Cover+Pic.jpg Home https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/ac9d67ae-f31d-4b66-87db-7c6a1c993393/Cover+Pic.JPG Home https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/e573babd-e569-46a6-8471-3a95d79e8d42/Feature+Picture.JPG Home https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/b2b4cde1-0b8f-47a4-9297-27352d0a385f/MAIN+4.JPG Home https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/2938236a-5029-4508-aec9-65241a3e87e6/MAIN+1.jpg Home https://www.kogaengineering.com/careers-position-inquiry daily 0.75 2021-09-06 https://www.kogaengineering.com/career-opportunities daily 0.75 2024-10-30 https://www.kogaengineering.com/careers-project-manager daily 0.75 2022-04-08 https://www.kogaengineering.com/uhcareerfair daily 0.75 2022-09-16 https://www.kogaengineering.com/careers-project-engineer daily 0.75 2024-04-09 https://www.kogaengineering.com/careers-controller daily 0.75 2024-10-30 https://www.kogaengineering.com/awards daily 0.75 2021-02-01 https://www.kogaengineering.com/awards/2020-gca-safety-most-improved-in-category monthly 0.5 2021-02-01 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612145999818-0CRQT52U0Z0MVCQY0K7K/2020+GCA+Safety+-+Most+Improved+in+Category.PNG Awards - 2020 GCA Safety - Most Improved in Category https://www.kogaengineering.com/awards/2020-gca-safety-best-in-category-zero-incident-rate monthly 0.5 2021-02-01 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612145865165-8FKQEPE7MX4C8I3DX265/2020+GCA+Safety+-+Best+in+Category+%26+Zero+Incident+Rate.PNG Awards - 2020 GCA Safety - Best in Category & Zero Incident Rate https://www.kogaengineering.com/awards/2020-gca-build-hawaii-honorable-mention monthly 0.5 2021-09-02 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612145741690-8TA5X04L9MFB1AXY64OE/2020+GCA+Build+Hawaii+-+Honorable+Mention.png Awards - 2020 GCA Build Hawaii - Honorable Mention https://www.kogaengineering.com/awards/2020-gca-safety-zero-incident-rate monthly 0.5 2021-09-02 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1630601938043-UCKZBMO3JEXD9D5CUSCQ/2020+GCA+Safety+-+Zero+Incident+Rate.png Awards - 2020 GCA Safety - Zero Incident Rate https://www.kogaengineering.com/awards/2021-gca-build-hawaii-merit-award monthly 0.5 2021-09-02 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1630602195179-LCQUM9QI59FBANUG0HAB/2021+GCA+Build+Hawaii+-+Merit+Award.png Awards - 2021 GCA Build Hawaii - Merit Award https://www.kogaengineering.com/awards/2021-gca-build-hawaii-excellence-award monthly 0.5 2021-09-02 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1630602447081-0N9YX2DV7HEHL8DIY41O/2021+GCA+Build+Hawaii+-+Excellence+Award.png Awards - 2021 GCA Build Hawaii - Excellence Award https://www.kogaengineering.com/awards/2021-gca-safety-best-in-category-zero-incident-rate monthly 0.5 2023-06-15 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1630602584385-CK6DHO0PMQ8O68CHHB43/2021+GCA+Safety+-+Zero+Incident+Rate.png Awards - 2021 GCA Safety - Best In Category & Zero Incident Rate https://www.kogaengineering.com/awards/2022-gca-safety-zero-incident-rate-jm9ns monthly 0.5 2023-06-15 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1630601938043-UCKZBMO3JEXD9D5CUSCQ/2020+GCA+Safety+-+Zero+Incident+Rate.png Awards - 2022 GCA Safety - Zero Incident Rate (Utility Infrastructure) https://www.kogaengineering.com/awards/2022-gca-safety-zero-incident-rate-jm9ns-kw2nt monthly 0.5 2023-06-15 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1630601938043-UCKZBMO3JEXD9D5CUSCQ/2020+GCA+Safety+-+Zero+Incident+Rate.png Awards - 2022 GCA Safety - Zero Incident Rate (Federal & Heavy) https://www.kogaengineering.com/awards/2021-gca-safety-zero-incident-rate-chjch monthly 0.5 2023-06-15 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1630602584385-CK6DHO0PMQ8O68CHHB43/2021+GCA+Safety+-+Zero+Incident+Rate.png Awards - 2023 GCA Safety - Zero Incident Rate (Federal & Heavy) https://www.kogaengineering.com/awards/2023-gca-safety-best-in-category-zero-incident-rate-lbmyh monthly 0.5 2023-06-15 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1630602584385-CK6DHO0PMQ8O68CHHB43/2021+GCA+Safety+-+Zero+Incident+Rate.png Awards - 2023 GCA Safety - Best In Category & Zero Incident Rate (Utility Infrastructure) https://www.kogaengineering.com/awards/2019-gca-safety-zero-incident-rate monthly 0.5 2021-02-01 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612145604098-MTUPDXVPN98U20HW5MB3/2019+GCA+Safety+-+Zero+Incident+Rate.PNG Awards - 2019 GCA Safety - Zero Incident Rate https://www.kogaengineering.com/awards/2019-gca-build-hawaii-merit-award monthly 0.5 2021-02-01 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612145044827-XVJYBS50M6ERB9EXHE26/2019+GCA+Build+Hawaii+-+Merit+Award.png Awards - 2019 GCA Build Hawaii - Merit Award https://www.kogaengineering.com/awards/2019-gca-most-improved-in-category monthly 0.5 2021-02-01 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612145508586-BYW2CML29TBBEEUVSJF7/2019+GCA+Safety+-+Most+Improved+in+Category.PNG Awards - 2019 GCA Safety - Most Improved in Category https://www.kogaengineering.com/awards/2017-gca-safety-most-improved-in-category monthly 0.5 2021-02-01 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612144256767-ZHX10D4R2J9B5B2OJJJH/2017+GCA+Safety+-+Most+Improved+in+Category.PNG Awards - 2017 GCA Safety - Most Improved in Category https://www.kogaengineering.com/awards/2017-gca-safety-best-in-category-zero-incident-rate monthly 0.5 2021-02-01 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612143795861-MYJ5LLP1H8MBOI73C94C/2017+GCA+Safety+-+Best+in+Category+%26+Zero+Incident+Rate.png Awards - 2017 GCA Safety - Best in Category & Zero Incident Rate https://www.kogaengineering.com/awards/2014-gca-safety-zero-incident-rate monthly 0.5 2021-02-01 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612143578959-LCE6VE5ZW4YPO0WLGLCU/2014+GCA+Safety+-+Zero+Incident+Rate.PNG Awards - 2014 GCA Safety - Zero Incident Rate https://www.kogaengineering.com/awards/2013-gca-safety-award-zero-incident-rate monthly 0.5 2021-02-01 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612143457863-IJYK9TGSEW8EPQL9SL22/2013+GCA+Safety+-+Zero+Incident+Rate.PNG Awards - 2013 GCA Safety Award - Zero Incident Rate https://www.kogaengineering.com/projects daily 0.75 2023-05-04 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/4cbabbde-3464-41cc-bbb4-9363076c7510/2022-07-29+14.26.07.jpg Projects - Clarence T.C. Ching Athletic Complex Phase II Loft & Misc. Improvements (O’ahu) Owner: University of Hawaii at Manoa General Contractor: F&H Construction Contract Amount: $88,480.00 Project Description: The Clarence T.C. Ching Athletic Complex Phase II Loft & Misc Improvements included removal and restoration of an existing concrete walkway panel, and excavation and site preparation for a 2,500-sf concrete pad. The concrete pad will be a media trailer pad for the UH Athletic Complex. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/704352b4-6b54-442f-b62e-1bb8dd657efe/2022-02-02+10.58.33.jpg Projects - HMR Sewer Repairs (O’ahu) Owner: US ARMY Helemano Military Reservation General Contractor: Aqua Engineering Contract Amount: $241,729.00 Project Description: This project was located at two different locations (Romero Road and Paalaa Road) at the Helemano Military Reservation. Koga’s scope of work included removing and replacing 160 linear feet of 6-inch C900 sewer pipe and 400 linear feet of 8-inch C900 sewer pipe, erosion control, installing a sewer pump bypass, and restoring the exiting A.C. pavement and concrete walkways. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/4999eb62-dd3d-454f-8220-264411525f9e/Main.png Projects - Wilcox Hospital Repairs (Kaua’i) Owner: Wilcox Medical Center, Hawaii Pacific Health General Contractor: Koga Engineering & Construction, Inc. Contract Amount: $64,381.18 Project Description: Wilcox Parking Lot Improvements included Root and Sink Hole Repair. Exploratory excavation exposed an old cesspool previously backfilled with 3B Fine. A concrete slab and A.C. Pavement were installed. Upon arborist examination of the root repair area, existing roots were removed and root barrier installed. The existing curb and asphalt pavement was removed and area re-graded. New curb (43’), A.C. Pavement (450 SF) and Pavement Striping were installed. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/391fb852-c070-4921-b5dc-82a5bacb477e/Main.png Projects - Sheraton Kaua’i Luau Building (Kaua’i) Owner: KHS, Inc. General Contractor: Shioi Construction, Inc. Contract Amount: $377,748.80 Project Description: The new Luau Building located at Sheraton Kauai Coconut Beach Resort serves as a covered dining and entertainment structure – building area of 6,785 SF. Dining area is 4800 SF with a 320 occupancy. Luau Building also includes food staging, storage and check-in area. Scope of work included erosion control, site demolition, structural excavation, building slab cushion, concrete walkway preparation. Excavation and backfill for interior plumbing, electrical, and gas utilities. Utility work included exterior Fireline (240’ of 8’’ D.I., 80’ of 6’’ D.I., and 90’ of 4’’ D.I. Fireline), 4’’ PVC Sewerline, 4’’ PVC Drainline and 1’’ Cold Water. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/e1254f31-fc4f-4417-8a2b-86e5ee4cf8b1/Main.jpg Projects - Target Lihue (Kaua’i) Owner: Target Corporation General Contractor: Swinerton Builders Contract Amount: $305,006.89 Project Description: Target opened its first location on Kauai, located at Kukui Grove Center. The store is approximately 122,000 square feet. Koga’s scope of work included plumbing excavation and backfill, structural foundation excavation and backfill, installation of 8-inch reduced pressure detector assembly, screen wall excavation and backfill (310’), electrical excavation and backfill, preparation for concrete slabs, and concrete walkway and asphalt pavement restoration. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/90bccb3e-7463-48e4-85a6-a5d46a15f54c/Main.jpg Projects - Hoakalei Area 6C Mass Grading (O’ahu) Owner: Wai Kai Residential, LLC General Contractor: Koga Engineering & Construction Inc. Contract Amount: $1,204,989 Project Description: Hoakalei Area 6C is located near the intersection of Keoneula Blvd. and Laukapuna Street at the Hoakalei Develpment by Haseko in Ewa Beach. Koga’s scope of work was to mass embank/grade the area, in addition to, relocating existing Hoakalei Country Club irrigation lines, fittings, valves and connection points. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/86de0034-8138-4cca-a2e0-0e7eaa719cd3/Main.jpg Projects - Servco Subaru Kaimuki Drainage Improvements (O’ahu) Owner: Servco Pacific Inc. General Contractor: Koga Engineering & Construction Inc. Contract Amount: $91,000.00 Project Description: Koga Engineering & Construction was tasked to improve the stormwater drain capacity to prevent overflow flooding into Servco Subaru service bays. Work included removing and replacing approx. 74 linear feet of 18-inch by 18-inch cast in placed trench drain with new cast in place reinforced concrete with traffic rated hot dipped galvanized trench frame and grates. The water collected in the new concrete trench drain will empty onto #2 crushed rock subgrade via 6-inch diameter pipe cut outs along the base trench drain, and will finally enter into an existing 4 foot wide rock swale near the property line along Waialae Avenue. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/946cf2d7-c75e-4c83-bd28-95b05ec2d644/Main.JPEG Projects - West Loch Modular Housing (O’ahu) Owner: Department of Land Management, City & County of Honolulu General Contractor: T. Iida Contracting, Ltd. Contract Amount: $2,085,816.00 Project Description: Koga Engineering & Construction did the sitework for the West Loch Modular Housing Project. This development is a three-story residential building constructed by stacking prefabricated modular units. Located at Fort Weaver and Renton Road, the affordable modular housing contains 58 furnished studio units, a community kitchen, dining area, laundry area, and office for the property manager. Currently, 26 units are used for COVID-19 isolation and quarantine location. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/3d2bd282-4cfa-4100-afd6-c00522f61bab/Main.JPG Projects - Makakilo Drive Waterline Replacement (O’ahu) Owner: Board Of Water Supply General Contractor: Koga Engineering & Construction Inc. Contract Amount: $912,148.00 Project Description: Makakilo Drive Waterline Replacement Project is located at the corner of Makakilo Drive and Anipeahi St. This was a Board of Water Supply Project that involved the installation of an 8-inch, 6 inches, & 4-inch ductile iron pipe. As the prime contractor on this project, Koga Engineering self-performed the trenching, pipe fitting, cathodic protection, and trench restoration. Paving, striping, and loop detectors were performed by various subcontractors. Nearly 900 linear feet of ductile iron pipe was installed in order to replace water service to a combination of residential and commercial real estate properties. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/e98cd90f-ca87-4c2d-8654-cd81e8d25f8f/IMG_2924.JPG Projects - HTH East Wall (O’ahu) Owner: HTH DH Ventures LLC General Contractor: Koga Engineering & Construction Inc. Contract Amount: $575,590.00 Project Description: This project is located at the 3735 Diamond Head Road, along Easements “B” and “C” for Lot 1. Koga’s scope of work was to widen the west retaining wall, in addition to, relocating of underground primary power ductbanks and installation of precast traffic rated electrical handholes, relocate existing waterlines to underground, and A.C. paving of the driveway after completion of underground utility work. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/570903a6-0992-46bb-a969-89aa16828b5f/Main.jpg Projects - 806 Iwilei Affordable Housing and Homeless Resource Center (O’ahu) Owner: City and County of Honolulu General Contractor: Allied Builders Systems Contract Amount: $770,000.00 Project Description: 806 Iwilei Affordable Housing and Homeless Resource Center is located at the corner of Iwilei Road and Sumner St. 806 Iwilei is a conversion of an existing auto dealership and offices into a resource center for the homeless and twenty-seven affordable rental micro units. This property is approximately 25,000 SF and the building will be four stories tall. Koga’s scope included sitework, structural excavation, plumbing excavation, and underground utilities. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612150751508-MQ0KAXBYEZEUW1I8328X/IMG_8649.JPG Projects - Servco Auto Waipahu Basin & Maintenance (O’ahu) Owner: Servco Pacific, Inc. General Contractor: Koga Engineering & Construction, Inc. Contract Amount: $296,000.00 Project Description: The intent of this project was the clearing and maintenance of Servco Auto Waipahu Basin for storm water protection. Work included clear and grub to the bottom of basin, excavate the bottom of basin and install new filter fabric under a new 6” layer of #2A course rock, install a GRP at the drain culvert, 12” perforated pipe extension of the inlet with a concrete collar, installation of sediment filter for drain inlet, installation of new Ingress/Egress pad, haul out and disposal of non-contaminated surplus, and dust control for fugitive dust during construction activities. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612150928858-UD06Y0M1KYZGHKE5XD5F/IMG_8649.JPG Projects - Kapiolani Medical Center Transformers Replacement (O’ahu) Owner: Kapiolani Medical Center General Contractor: Koga Engineering & Construction, Inc. Contract Amount: $423,792.18 Project Description: Kapiolani Hospital needed to upgrade its primary and secondary power transmission lines from the HECO tie-in to its main electrical distribution system. Work included installation of new switchgear, transformers, primary and secondary conductors complete all the while maintaining a fully functional and operational Women’s and Children Hospital and Physicians Office Building. The primary challenge of this project was to install these new electrical apparatus in an area congested with existing utilities that all needed to be rerouted in order to accommodate electrical clearances required by code. Another particular challenge was the limited space between the building and city and state right-of-way that under any circumstance would not be permitted to shut down or close. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612151157508-1BDHQTP24B0YSKU6BID0/Main.JPG Projects - Koloa Rum Maluhia Road Improvements (Kaua’i) Owner: Koloa Rum Co. General Contractor: Koga Engineering & Construction, Inc. Contract Amount: $1,027,891.00 Project Description: Off-site improvements for Koloa Rum Universal Center. Improvements include installation of 1,000 LF of 6’’/8’’/12’’ D.I. waterline, concrete pathway, concrete driveway approach and placement of asphalt-concrete pavement. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612151274714-XC64ECNXLN69IFIUDVLP/Main.JPG Projects - Servco Auiki Property Rehab (O’ahu) Owner: Servco Pacific, Inc. General Contractor: Koga Engineering & Construction, Inc. Contract Amount: $186,171.00 Project Description: Servco Pacific Inc on Auiki Street is located next to a former military reservation known to contain hazardous materials in the surrounding soil. Monitoring wells were installed to track natural leaching of these hazardous materials into Servco Pacific’s property. Over time, the monitoring well manhole covers and frame deteriorated with constant and heavy vehicular traffic and needed replacement. Koga Engineering was contracted to replace four (4) of these manhole covers and frames, remove 400lf of chain link and barbed wire fencing and fence poles, pave 3700sf of asphaltic concrete, underground utility work for an automatic gate to improve overall functionality and general condition of their Auiki Street facility. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612151820783-PXG1SU1H8XUMF7GF3039/Main.JPG Projects - Kawaiha’o Church Probing (O’ahu) Owner: Kawaiaha’o Church General Contractor: Koga Engineering & Construction, Inc. Contract Amount: $205,190.00 Project Description: Assisting Cultural Surveys Hawai’i for utility probing and archaeological surveying for the future development and improvements at Kawaiaha’o Church. Scope also included asphalt and concrete restoration in main thoroughfares including South King Street. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612151061603-YSPBMZ2YN5D4N973CO1A/Main+Image.jpg Projects - National Security Cutters Homeport (O’ahu) Owner: U.S. Coast Guard General Contractor: The Haskell Company Contract Amount: $1,232,241.31 Project Description: The U.S. Coast Guard Station Honolulu was selected to homeport two state of the art Legend class National Security Cutters, no. 7th WMSL 756 Kimball and no. 8th WMSL 757 Midgett. The NSC’s are two of the most technologically sophisticated vessels in the U.S. Coast Guard. Our work included constructing additional workspace in support of both the FRC & NED operations. Our work also included the installation of a much-needed large capacity sanitary lift station for ship to shore operations. Being located in the heart of Honolulu Harbor, shallow ground water levels proved challenging for foundations and underground utilities and improvements. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612151490081-ER986YRYRGPR6KDK609S/Main.JPG Projects - Kalakaua Slope Repair (O’ahu) Owner: Island Palm Communities General Contractor: Koga Engineering & Construction, Inc. Contract Amount: $977,639.00 Project Description: Kalakaua Slope Repair required the restoration of a slope that had eroded away causing undermining of the road. The project tasks included clear & grubbing, demolition, beam & lagging, structural excavation & backfill, curb & gutter, catch basin installation, fencing, guardrail, ac restoration, and detouring of residential vehicles during the restoration process. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612151606741-F7TZUCLHNR5A636P6GKA/IMG_3161.JPG Projects - HNL CONRAC ACIP Spoil Maintenance (O’ahu) Owner: HNL CONRAC General Contractor: Watts Construction Contract Amount: $345,572.80 Project Description: HNL CONRAC was constructed to consolidate all the major rental car companies in one location. This in turn would help facilitate a better experience for visitors needing rental transportation around the island. The project included demolition of the existing facility and construction of the new multi-level parking structure, while allowing the rental car entities to still conduct business for arrivals. The parking structure stands on drilled auger cast piles which Watts subcontracted out to Hawaiian Dredging Construction Company who hired Koga Engineering & Construction, Inc. to maintain drilled spoils. Our portion of work was portioned into two stages in order to maintain continued rental facility operations. The first stage was completed in 2017, and the second was completed in 2020. https://www.kogaengineering.com/projects/kamananui-valley-road-repair-oahu monthly 0.5 2021-02-01 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612147120805-QM1SMIE3TRG7MHKJTAWQ/1.jpg Projects - Kamananui Valley Road Repair (O'ahu) Koga Engineering & Construction, Inc. successfully completed the Kamananui Valley Road Repairs project located in the heart of Moanalua Valley, home to cultural artifacts and numerous endangered species. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612147295464-4ZVJAB5B3F6C5I84H6QO/2.JPG Projects - Kamananui Valley Road Repair (O'ahu) The project consisted of grading washed out areas and installing concrete pavement along a two mile stretch of the popular Kamananui Valley Trail. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612147437639-54ZEP98YIQAVMUWVRE28/3.JPG Projects - Kamananui Valley Road Repair (O'ahu) Koga Engineering overcame unique challenges with project access, hikers and budget constraints. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612147484906-42C2ZSKYZDC9Y6A7VMEE/4.JPG Projects - Kamananui Valley Road Repair (O'ahu) Teamwork and innovative ideas allowed the project to be completed without incident and ahead of schedule attesting our commitment to excellence. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612147734705-FY8UYZJ6VASTGLMX2I97/2019%2BGCA-Koga%2B11.jpg Projects - Kamananui Valley Road Repair (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612147592098-WCY2NTH1ZI775YEXCH9T/2019+GCA-Koga+13.JPG Projects - Kamananui Valley Road Repair (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612147593508-XX4CD45V3SH6ZY7Y07Z2/IMG_1174.JPG Projects - Kamananui Valley Road Repair (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612147679747-LPWMUGQARFU4POC10IWX/2019%2BGCA-Koga%2B06.jpg Projects - Kamananui Valley Road Repair (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612147595306-RXG1CVIKSLIDCHEDOCZ5/2019+GCA-Koga+07.JPG Projects - Kamananui Valley Road Repair (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612147589026-45P29RC2RQYJVKRVF5SR/2019+GCA-Koga+08.JPG Projects - Kamananui Valley Road Repair (O'ahu) https://www.kogaengineering.com/projects/kamehame-tunnel-waterline-oahu monthly 0.5 2021-02-01 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148314772-NG9X050XENW825O8TTAY/4.jpg Projects - Kamehame Tunnel Waterline (O'ahu) Excellence in project management and state-of-the-art advancements were key elements that made this project successful. Pulling of the 30-inch butt-fused HDPE pipe and making the final connection in a hard to reach, space-challenged location required an innovative approach in construction techniques. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148175971-YE2MNU6IEFSS986C5FBL/2.JPG Projects - Kamehame Tunnel Waterline (O'ahu) Staging areas were provided by the BWS on each end of the utility tunnel, to store the 30-inch pipe material and fittings as well as ultimately to conduct the pipe feeding, butt-fusing and pipe pulling operations to slip-line the 30-inch HDPE pipe into the 36-inch CCP water main. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148264642-68ICLW8UWOZM9ORK6Z91/3.jpg Projects - Kamehame Tunnel Waterline (O'ahu) The Kalama Valley Big Giant Gate Valve was a challenge due to its location in the middle of Mokuhano Street, a 25 foot wide, two lane road with a bus route. This site also required the re-location of approximately 60 l.f. of an existing 12-inch waterline in order to fit the new Type “A” Manhole. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148138712-C4U5WY9XE1VLMYY46E0F/1.jpg Projects - Kamehame Tunnel Waterline (O'ahu) The Kamehame Tunnel Waterline was a Design-Build Emergency Repair project with Sam O. Hirota Inc, for the Board of Water Supply/ City and County of Honolulu. It consisted of the design and installation of 2,200 feet of 30-inch HDPE pipe within an existing 36-inch CCP water main plus installation of two 30-inch BGGVs in Type “A” Manholes. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148375663-MIIFFOKRENPZDZRBHJB7/IMG_0306.JPG Projects - Kamehame Tunnel Waterline (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148376410-L1SB853VF5ZBXZ0IKHDG/2019-06-18+12.34.43.jpg Projects - Kamehame Tunnel Waterline (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148373225-UVVJFXSC4I01PS10GS7G/IMG_6046.JPG Projects - Kamehame Tunnel Waterline (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148370770-LDBYFS8CYWKDDDEUN5D2/2019-04-08+IMG_1674+%285%29.JPG Projects - Kamehame Tunnel Waterline (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148375578-MOIKR2EVNTDIDHLSKFGS/IMG_0523.JPG Projects - Kamehame Tunnel Waterline (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148376719-FFF91BVMZ929K003CJT6/IMG_0288.JPG Projects - Kamehame Tunnel Waterline (O'ahu) https://www.kogaengineering.com/projects/kauai-drainage-canal-kauai monthly 0.5 2023-05-03 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148762314-VQ68J4WA3AXZ34CZ66D5/3.jpg Projects - Kekaha Drainage Canal Scour Repairs (Kaua'i) Koga Engineering & Construction, Inc. overcame emergency repairs with successful coordination of subcontractor activities, flexibility as site conditions varied from plans, and timely completion having minimal impact to users of Kaumuali`i Highway. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148658956-YFNVHPKVOPGAKUR3B6JR/1.jpg Projects - Kekaha Drainage Canal Scour Repairs (Kaua'i) Koga Engineering & Construction, Inc. successfully completed emergency scour repairs at Kekaha Drainage Canal No. 3 for the State of Hawai`i, Department of Transportation. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148687756-K917FR0BQFVVIOQARTO0/2.JPG Projects - Kekaha Drainage Canal Scour Repairs (Kaua'i) Work was expedited to ensure public safety. Scour repairs included installation of concrete floor, backfill of voids, abutment and riprap embankment protection. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148864507-8WB75HOJFKC4GTY792GK/IMG_4756.jpg Projects - Kekaha Drainage Canal Scour Repairs (Kaua'i) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148852248-RDSUY6TTLG9Z2MM5S1KB/IMG_5361.JPG Projects - Kekaha Drainage Canal Scour Repairs (Kaua'i) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148852369-TO6YCLERMSBY6R4I81E1/IMG_5442.JPG Projects - Kekaha Drainage Canal Scour Repairs (Kaua'i) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148852443-JCJQHHCQ193WKMJLYIC3/IMG_5580.JPG Projects - Kekaha Drainage Canal Scour Repairs (Kaua'i) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148862414-V3TN5O0FY32JL57ZFFHB/IMG_4711.jpg Projects - Kekaha Drainage Canal Scour Repairs (Kaua'i) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/1612148864144-IH4QPEXQRCPNGDL5V0DD/IMG_4747.JPG Projects - Kekaha Drainage Canal Scour Repairs (Kaua'i) https://www.kogaengineering.com/projects/ewa-villages-r1-replacement monthly 0.5 2023-05-03 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/3c3e2d3b-f5b5-42e7-8ea7-3f896229697a/MAIN+1.jpg Projects - Ewa Villages R1 Replacement (O'ahu) The Ewa Villages R-1 Replacement project was a Design-Build project with Sam O. Hirota Inc, for the City & County of Honolulu, Department of Facility Maintenance. The R-1 line was connected to an existing recycled water line behind Ka Makana Ali’I and continued east, crossing Kaloi Stream and running adjacent to Geiger Park. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/ad8e653d-399f-44dc-8bb0-c9a83c6218be/MAIN+3.jpg Projects - Ewa Villages R1 Replacement (O'ahu) Koga Engineering & Construction, Inc. overcame these obstacles and challenges with detailed coordination and communication between the City Department of Facility Management and all other relevant parties to design a solution. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/8ca4c70e-bfd7-40e0-b331-e9948600857b/MAIN+2.JPG Projects - Ewa Villages R1 Replacement (O'ahu) The R-1 line traversed through many obstacles, such as a historical site (Varona Village), Kapolei Parkway and Kaloi Stream. In addition to these obstacles, the R-1 line was initially intended to run beneath the westbound lanes of Renton Road, which had numerous unforeseen utility lines. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/ec03937a-6f3d-4cf0-801d-2231b10fccc0/MAIN+4.JPG Projects - Ewa Villages R1 Replacement (O'ahu) Work was successfully completed with different innovative techniques, along with efforts to mitigate community/environmental impact. These tasks included: Having constant archeological monitoring, using suspended platforms to avoid working within Kaloi stream, using ground penetrating radar devices to locate existing reinforcing steel to avoid damaging the existing bridge and rerouting the R-1 line to the eastbound lanes to prevent utility conflicts. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/f288721a-b516-4020-9e72-e82e987a1539/SUPP+1.JPG Projects - Ewa Villages R1 Replacement (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/5729272a-f7e2-4f00-9731-a9ac8fbf677a/SUPP+2.JPG Projects - Ewa Villages R1 Replacement (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/55d80c11-7859-44ae-9b61-19b8de184dcf/SUPP+3.JPG Projects - Ewa Villages R1 Replacement (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/7700f317-71a2-406c-b8bd-09c39943b6d7/SUPP+4.jpg Projects - Ewa Villages R1 Replacement (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/c026d2bf-67fd-416e-9e0b-b62e2368ce69/SUPP+5.JPG Projects - Ewa Villages R1 Replacement (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/0a1053b3-abdb-414a-8e43-8a5699082131/SUPP+6.JPG Projects - Ewa Villages R1 Replacement (O'ahu) https://www.kogaengineering.com/projects/waihee-stream-emergency-repairs monthly 0.5 2023-05-03 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/d5536b01-a797-49eb-91bc-e0d3cbf14b5e/SUPP+4.jpg Projects - Waihee Stream Emergency Repairs (O'ahu) Since this project involved in-water stream work, it required extreme sensitivity to the surrounding environment making adherence to a multitude of National, State, and County permits was essential. Koga Engineering & Construction Inc. coordinated thoroughly with the City & County of Honolulu, their environmental consultant WPS Inc., and the Koga team consisting of Belt Collins , AECOS Inc., Affiliated Construction, & Green Thumb Landscaping. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/7639aad9-0a5b-4de8-8126-a26862502889/MAIN+1.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) The Waihee Stream Emergency Repairs project was completed for the City & County of Honolulu, Department of Design and Construction. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/7aa2e876-2a6b-4fc3-962f-4dee63410ea7/MAIN+2.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) The main objective of this project was to upgrade the damaged existing streambank lining downstream of the Ahilama Road Bridge. This project required the use of rock-filled, polymer-coated galvanized wire-fabric gabions to be placed in the streambed as the means to support the damaged CRM slope lining. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/9677d9e0-2988-4857-80b4-1d704c9072a1/MAIN+4.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) Koga used several methods, such as pre-fabricating gabions off-site, using smaller equipment on the roads, and using a crane out of the stream to place gabions along the streambed, to limit land disturbance and disruption to the adjacent neighborhoods. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/64978f8e-240b-499e-8b2f-baf0b7cd6c4b/SUPP+1.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/ef8fd8d1-92f5-4d8a-b9cd-d03d14808fd0/SUPP+2.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/63af9e0a-f3a4-4ba9-ae9f-25788313c873/SUPP+3.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/6e2462da-6009-45e5-a15d-38be042cdc1f/SUPP+5.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/f617300b-0d37-4479-b920-005674aaecd1/SUPP+6.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/64b6959c-8cda-4238-aac7-35b8527554e3/SUPP+7.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/939df98c-05ec-4270-ba5b-4510cecf754e/SUPP+8.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/5837e470-b779-4a30-afbe-b8b6cd8fa852/SUPP+9.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/e7fbbd36-115e-495d-b9e5-5bed2124bc2e/SUPP+11.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/2c2cb6d8-96c5-44fd-9f28-3cfe51e0c98e/SUPP+12.JPG Projects - Waihee Stream Emergency Repairs (O'ahu) https://www.kogaengineering.com/projects/physical-improvements-to-lanakila-public-housing-demolition-of-phase-iiib-iv monthly 0.5 2023-05-03 https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/100b4619-d8cb-4d14-82c3-2ce06ec5c4e5/MAIN+2.jpg Projects - Physical Improvements to Lanakila Public Housing Demolition of Phase IIIb & IV (Big Island) The main objective of this project was to encapsulate soils contaminated with lead, mercury, arsenic, and chlordane at Lanakila’s Public Housing to prevent the hazardous chemicals from spreading into the neighboring homes and St. Joseph Elementary and High School. The completion of this project provided the community with a grassy recreation area that can also be utilized in the future for affordable housing development https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/c2ef4e33-6cd9-4cc3-a2bd-e5e56be86a69/MAIN+3.jpg Projects - Physical Improvements to Lanakila Public Housing Demolition of Phase IIIb & IV (Big Island) Working with contaminated materials and reclaiming chemically impacted land brought a unique set of challenges. Koga Engineering & Construction Inc. emphasized and communicated with team members that the worker’s safety and importance of protecting the environment and adjacent neighbors are essential. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/fa554df0-18a2-428b-ba49-18a2e54f9c62/MAIN+1.jpg Projects - Physical Improvements to Lanakila Public Housing Demolition of Phase IIIb & IV (Big Island) The Lanakila Public Housing Demolition of Phase IIIb & IV project was subcontract work with Constructors Hawaii, inc. for Hawaii Public Housing Authority. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/e139d03c-396f-4626-9c1f-d44d58c49a6c/MAIN+4.jpg Projects - Physical Improvements to Lanakila Public Housing Demolition of Phase IIIb & IV (Big Island) Workers were able to minimize the exposure and spread of the contaminated soil by wearing Personal Protective Equipment, laying out the proper Best Management Practices (BMPs), and consistently following the housekeeping rules. Koga Engineering & Construction, Inc. was able to successfully remove all contaminated material throughout the work area without any lost time or recordable incidents. https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/b87be708-6b15-4624-9c2a-425d035adadc/SUPP+1.jpg Projects - Physical Improvements to Lanakila Public Housing Demolition of Phase IIIb & IV (Big Island) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/538eba1a-60d9-46ba-8778-ae8bd1b1c1d0/SUPP+2.jpg Projects - Physical Improvements to Lanakila Public Housing Demolition of Phase IIIb & IV (Big Island) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/45c128b7-2301-4474-8e14-e148b8c51bba/SUPP+3.jpg Projects - Physical Improvements to Lanakila Public Housing Demolition of Phase IIIb & IV (Big Island) https://images.squarespace-cdn.com/content/v1/5e94fccdeea6435b6ea8067a/b12b0473-51f9-4146-9f3d-9f5c32c37572/SUPP+4.jpg Projects - Physical Improvements to Lanakila Public Housing Demolition of Phase IIIb & IV (Big Island)