Drainage

The City of Diamondhead is currently working on several drainage projects.  Below is a list of the projects and the current status.

 

Drainage Projects

  1. Beaux Vue 2 (Awarded) This project is to remove the subsurface drainage culverts behind the homes on Beaux Vue Court and Golf Club Drive.  An open ditch will be installed.  Currently waiting for the notice to proceed from the engineer.
  2. Bayou Drive (Underway) This project is to upgrade the box culvert underneath Bayou Drive.  The schedule start date for this project is May 6.  During this project, all residents north of Malahini Place will detour to Bayou Place (new road) to Kapalama Drive.
  3. Kaleki Way (Underway) This project is for 120 days with a current end date of August 6. The contractor is currently working on Kaleki Way to upsize driveway culverts and remove landscape culverts.  A rear ditch will be constructed between homes along Kaleki Way and Ieke Drive.
  4. Paradise Bayou Area (Awaiting Bidding) This project is to dredge the Paradise Bayou canal and the Fingerling canals on the Southside of Diamondhead.  The project design has been completed and project is currently awaiting grant agreement. 
  5. Coon Branch (Design stage) This project is currently in a design phase with the engineering firm collecting survey data in the Northeast Quadrant of Diamondhead.  The overall scope of this project is to stabilize the ditch banks behind homes, as well as increase ditch and culvert sizes on roadsides.  
  6. Coon Branch Phase 2 (Design stage)   Phase 2 encompasses the area around Koloa Street and Ala Moana.
  7. Coon Branch Phase 3 (Design stage) Phase 3 encompasses the rear of Polo Court and Kahana Street.
  8. Coon Branch Phase 4 (Design stage) Phase 4 encompasses the area around Anahola and Hana Street. 
  9. Kalipekona Pond (Design stage) This project includes the dredging of the Kalipekona pond and the modification of the current weir.  This area will be the beginning of the much larger Bank Stabilization project.
  10. Kome Drive (Design stage) This project will address the driveway and landscape culverts on both sides of Kome Drive.  The overall scope of the project will be to increase the sizes of the driveway culverts and the roadside ditch to be able to handle a larger capacity of stormwater.
  11. Ahuli Place (Design stage) This project will address the driveway and landscape culverts on the South side of Ahuli Place.  This project will also increase the underground road culverts under Diamondhead Drive East to control the water to the I10 detention area.  
  12. Hilo Way to Hapuna Place (Design stage) This project will address the driveway and landscape culverts in this area. The overall scope of the project will be to increase the sizes of the driveway culverts and the roadside ditch to be able to handle a larger capacity of stormwater.
  13. Hilo Way -- West (Design stage) This project will replace the culverts under the road at Hilo Way and Hilo Place.
  14. Hilo Way at Koko Street (Design stage) This project will reshape the ditch between homes from Maui Circle to KoKo Street.  Driveway and landscape culverts will be upsized along Koko Street to Diamondhead Drive East.
  15. Diamondhead Drive East (Design stage) This project is to replace the culvert under the road at Diamondhead Drive East and Aukai Place.
  16. Turnberry (Design stage) This project is to upsize the culvert under Turnberry Way and address the driveway and landscape culverts along Turnberry Drive.  The detention pond (Hole 4) will be dredged and resized to increase capacity.
  17. Kolo Court (Design stage) This project is to address the drainage ditch at the rear of the properties to control erosion and to stabilize the ditch banks.  The water and sewer lines along the creek bank will be reinforced.
  18. Kalae Street (Design stage) This project will address the driveway and landscape culverts on both sides of Kalae Street.  The overall scope of the project will be to increase the sizes of the driveway culverts and the roadside ditch to be able to handle a larger capacity of stormwater.
  19. Bank Stabilization (Design stage) This is a larger project that will stabilize the ditch banks and control erosion for residents along Kiko Street, Iona Street, Apelehama Road, Apelehama Circle, Kome Drive, and Kalipekona Way.

 

Completed Projects to date

  1. Diamondhead Drive East (Completed) Upsided the culverts under the road on Diamondhead Drive East.
  2. Alkii Way (Completed)  Installed concrete drainage ditch from Diamondhead Drive East near the East Rec Area.
  3. Hilo Street (Completed)  Installed larger culverts from the golf course between houses and under Hilo Street to the detention pond.
  4. Hilo Street @ Ewa Street (Completed)  This project addressed the driveway and landscape culverts on Hilo Street near Ewa Street.  The overall scope of the project was to increase the sizes of the driveway culverts and the roadside ditch to be able to handle a larger capacity of stormwater.
  5. I-10 Pond (Completed)  This project was to dredge the large detention pond near Anoai Court and I-10.  This detention pond serves as the main deposit for stormwater in drainage basin C.
  6. Lily Pond (Completed)  This project was to dredge the detention pond on Diamondhead Drive North near Devils Elbow.  This detention pond serves as the main deposit for stormwater in drainage basin A.
  7. Makiki Drive (Completed)  This project addressed the rear ditch of homes on Makiki Drive and upsized the culverts underneath Makiki Drive.  The overall scope of the project was to reshape the downstream ditch and road crossing culverts to be able to handle a larger capacity of stormwater.
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