HomeMy WebLinkAbout15-189 Hakalau Stream Bridge Underwater Inspection ReportUnderwater Bridge Inspection
for
Hakalau Stream Bridge
(Bridge No. 001290001100003)
Prepared for
County of Hawaii
Department of Public Works
March 2016
Hawaii Engineering Group, Inc.
Consulting Civil Engineers, Structural Engineers & Land
Surveyors
1088 Bishop Street, Suite 2506
Honolulu, Hawaii 96813
www.hawaiiengineering.net
TABLE OF CONTENTS
APPENDICES
APPENDIX A
LOCATION AND VICINITY MAP
APPENDIX B
PHOTOGRAPHS
SOUTH ABUTMENT (UNDERWATER)
SOUTH ABUTMENT (UNDERWATER)
NORTH ABUTMENT (UNDERWATER)
NORTH ABUTMENT (UNDERWATER)
NORTH ABUTMENT (UNDERWATER)
NORTH ABUTMENT (UNDERWATER)
APPENDIX C
UNDERWATER BRIDGE INSPECTION
REPORT
STATE OF HAWAII
DEPARTMENT OF TRANSPORTATION
HIGHWAYS DIVISION
UNDERWATER BRIDGE INSPECTION REPORT
Date of Inspection 2/3/2016
Bridge Number 29 Bridge Name Hakalau Stream Bridge
Location: Island Hawaii Route No. Highway Highway
Body of Water Hakalau Stream Milepost
Number of Spans 1 Number of Piers in the Waterway 0
Structure Type Arch Bridge Substructure Type Concrete
Foundation Type Spread Footing
Diving Conditions: Dive Mode Surface Supplied Air
Air Temp. 75 F Ave. Visibility 15 ft.
Water Temp. 65 F Bot. Material Basalt Rock
Max. Depth 17.5 ft
Water Velocity 1 fps
Items of Inspection Condition Rating Remarks
[Condition ratings for these items shall be in accordance with applicable NBI items 60, 61 or 62.]
1. Pilings/Shafts N 5. The abutments are in satisfactory condition;
2. Footings/caissons/Pedestals N however, the area under the northern end
3. Columns/Wall Piers N Abutment support rock ledge is undermined and
4. Bracings/Struts/Web Walls N is considered to be critical scour per NBI Coding
5. Abutments/End Bents 7 Guide #113. It would be a assigned a rating of
6. Retaining Walls/Wing Walls 7 2.
7. Fender System/Pier Protection N
8. Embankments/Slopes/Bulkheads 7
9. Degradation/Aggradation N
10. Obstruction/Flow 6
11. Culvert Barrels N
12. Culvert Headwalls N
Inspected by: Name (printed): Kenneth Lai Title: PE, Inspector
Signature:
Phone Number: 808.533.2092
Supervised by: Name (printed): Ather Dar Title: PE, Team Leader
Signature:
Phone Number: 808.533.2092
APPENDIX D
FIGURES
APPENDIX E
PRE DIVE AND POST DIVE CHECKLISTS