HAPI-Newsletter-February 2018 Issue    
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A word from Jon M. Young, Executive Director                Like us on Facebook  
   

Saddle Road - East SideHAPI accepted an invitation to prepare an article for the asphalt supplement in the February 2018 issue of Road & Bridges magazine.  The article featured the construction of Saddle Road East Side improvements, which is this month’s feature project. Click here to learn about the project and the challenges that HAPI member Road and Highway Builders LCC faced during construction.
 
Association of Pacific Ports logoIn January, I attended the annual Association of Pacific Ports winter conference held on Maui.  It was great to increase my knowledge of port operations at the conference, which included a presentation titled “Port Hawaii: A Forecast for 2018” made by Dre Kalili, Revenue Enhancement Manager, HDOT, Harbors Division.  Click here for additional information, including a report titled “Port Hawaii: Our Commercial Harbor System”, the conference program, the participants list, several of the PowerPoint presentations, and photos.
 
Attendees enjoying lunchAttendees at our January lunch meeting learned about the City’s pavement management from guest speaker Tyler Sugihara, Chief, Division of Road Maintenance, Department of Facility Maintenance, City and County of Honolulu.  A highlight from the presentation was an overview of the City’s pavement preservation efforts, which indicated that their efforts are working based on the reduced number of potholes repaired in 2017. Click here for a full account of the meeting and photos.

 
UPCOMING LOCAL TRAINING OPPORTUNITIES
 
Instructor Jon Young at the HAPI OfficeThe Understanding a Job Mix Formula (JMF) Submittal workshop will be conducted on March 8th on Maui and March 15th at the HAPI office. This 2-hour workshop will discuss: 1) basics of asphalt pavement mixes 2) production of asphalt pavements, and 3) how the JMF submittal relates to the project specificaition. For additional information and to register: Click here for Maui and click here for Oahu.   
 
Instructor Brent IshikawaNew Date! HDOT has changed the date for their certification exam.  It will be given on two days – March 20th and March 22nd.  As a result, our DOT Asphalt Sampling Exam Training workshop has been rescheduled to March 10th.  Please note that anyone interested in the workshop is welcome to attend, not just those planning to take the exam.   Click here to register and for additional information about the workshop.
 
Instructor Jarrett WelchOur Best Practices for Asphalt Pavements workshop is back with sessions on Oahu (April 23rd) and Kauai (April 26th). This year we are adding “the Next Level” 3-hour workshop available to those that have previously completed the Best Practices workshop.  “The Next Level” workshop (held on April 24th and 27th) will cover areas of interest, such as paving on steep slopes, and provide attendees the opportunity to experience being an inspector at a paving job site.  Click here for additional information.
 
Click here to visit our calendar of event to register for the various workshops.
 
From the Asphalt Institute: Instructor Bob Humer and Danny GiehartThe Mix Design Technology Certification (MDT) course conducted by the Asphalt Institute is coming to Oahu on May 5 to 8, 2018.  The course provides advanced technicians, designers, and engineers responsible for mix designs with a thorough understanding of the properties of the materials which compose asphalt mixtures, as well as the physical and mathematical processes involved in producing a successful asphalt mixture design. Click here to learn about the course and to register.

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Featured  Article  - Saddle Road East Side - Bringing an island together
 
Featured Member:  Road and Highway Builders LLC (RHB)
Project Title: HI SR 200(3) Saddle Road East Side
Location: Hawaii Island
Client or Agency:  Central Federal Lands Highway Division of the Federal Highway Administration
 
The following are highlights from the article in Road & Bridge (R&B) magazine.  Click here for the full article in R&B magazine.
  
The Daniel K. Inouye Highway (DKI), also known as Saddle Road, is the most direct cross-island route between east and west Hawaii Island. People use the road for business travel, transport of goods and services, tourism, recreation, shopping and daily commuting. Taking this route saves 30 to 45 minutes in drive time as compared to any other alternative route.
 
Saddle Road East - Location MapThe project involved the construction of a new realigned 6-mile section of Saddle Road between mileposts 5.7 and 11.7. The roadway was upgraded to a 52-foot paved width and authorized for a straighter alignment. There are two 12-ft-wide travel lanes with 8-foot wide shoulder lanes for passing. A 12-foot wide climbing lane for slower and larger vehicles also was provided for most of the length of the project.
 
Paving of the new road required a 5-inch thick asphalt pavement. This thickness was accomplished in two lifts. A Marshall mix, utilizing a ¾-inch nominal aggregate and totaling 36,000 tons, was installed as the bottom 3-inch thick lift, and a SuperPave mix, utilizing a ½-inch nominal aggregate and totaling 24,000 tons, was installed as a 2-inch thick surface course. The 52-foot-wide paved section of road was accomplished with pull widths of 20 feet, 12 feet and 20 feet for most of the project.
 
Asphalt delivery and paving on the project was handled by belly dumps, a Roadtec Shuttle Buggy and a Cat AP1000E paver. The number of belly dumps used was based on a given day’s production and the haul cycle to the location on which paving was Belly dump in actiontaking place along the alignment. However, on several occasions the number of belly dumps used was limited by the availability of trucks on the island to pull the trailers.
 
The use of belly dump trucks is something rarely seen in Hawaii; local contractors generally do not have the required equipment. Most of the roads in Hawaii have intersections and driveways at frequent intervals, making it impractical to use a belly dump that leaves a windrow of asphalt pavement on the road. For this project, however, there were mainly minor access roads and no driveways, making the use of belly dumps ideal.
 
The project faced several challenges, including Rapid Ohia Death, ash related issues, paving on steep grades and unpredictable weather conditions.
 
ohia lehua blossomsA particularly unique challenge for the project was preventing the spread of the Rapid Ohia Death (ROD) disease. ROD is caused by two strains of the fungus Ceratocystis, which attacks the vascular system of a tree and can be easily spread by contact with infected trees. Ohia trees cover more than 1 million acres statewide, making it perhaps the most important tree species in Hawaii. Based on recent and ongoing aerial surveys in 2017, about 75,000 acres of Ohia forest currently show symptoms of ROD disease on Hawaii Island.
 
A further challenge was that a major portion of the project was constructed over existing ash. The presence of ash in the subgrade would have resulted in an unstable subgrade. RHB efforts minimized the effects of the existing ash. Platforms were constructed by over-excavating the ash and placing geogrid and fabric on the over-excavated area. Next, 6-in. minus material was placed in 6-in. lifts and compacted.
 
Paving in progress - in the downhill directionPaving on steep grades can oftentimes be difficult, and the entire Saddle Road project was on a slope. Approximately 75% of the 6-mile project site is steeper than 5% with the steepest grade being 7.2%. RHB decided to pave in the downhill direction, which was their preference, after a careful evaluation of the site. What’s more, paving in the downhill direction also meant paving in the opposite direction from the project’s asphalt plant. Paving away from your source minimizes possible damage from loaded trucks turning on the subgrade, base and fresh asphalt paving.
 
Unpredictable rainfall events also were something the contractor needed to account for in its planning and scheduling of paving work. The largest concern regarding the weather was the chance of rain occurring above the immediate area being paved, which would cause unexpected flooding of the work area. Care therefore had to be taken to not only monitor the area that was being paved, but other areas that had an impact on paving operations. The mixture of weather monitoring and careful scheduling and paving practice thankfully precluded any such event from hampering progress.
 
Dedication Ceremony Saddle Road - East SideOn Oct. 10, 2017, a dedication ceremony occurred for the opening of the Saddle Road East Side construction project. The completion of the East Side project is a significant milestone by safely connecting the communities of East and West Hawaii. Gov. David Ige, Mayor Harry Kim, Hawaii Sen. Mazie Hirono and officials from the Federal Highway Administration were on hand to see the island draw together as it never had before.
 
The ultimate result of RHB’s efforts was a new and smooth pavement for the commuting public.
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Asphalt Pavement Guide Highlight   
   
A challenge the Saddle Road East project was that a major portion of the project was constructed over existing ash. The presence of ash in the subgrade would have resulted in an unstable subgrade. To minimize the effects of the existing ash, it was removed and replaced with competent material.  Click here to learn more about subgrades.
 
 
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Asphalt Video of the Month  
   
 Saddle Road - Video Going Downhill This month we feature two videos of the completed Saddle Road East project.  Click here to ride along the road going in an uphill direction; click here to see the view going in the downhill direction.
 
 
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Asphalt FACT
 
   
Asphalt Fact #09Asphalt Fact #09: Smoother pavements extend pavement life by as much as 10% to 25%, resulting in lower costs for maintaining the roads.  The pavement smoothness for the Saddle Road East Side project exceeded expectations, so a long-lasting pavement is anticipated. Click here to learn more about benefits of smooth pavements.
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HAPI Calendar of Upcoming Events:         
(for additional information click on the event title)
 

 

 
✤ Preparation for the HDOT Bituminous Sampling Exam Workshop, March 10, 2018;  Honolulu, Hawaii

✤ Understanding a Job Mix Formula Submittal Workshop, March 8, 2018;  Kahului, Maui, Hawaii

✤ Understanding a Job Mix Formula Submittal Workshop, March 15, 2018;  Honolulu, Hawaii

✤ National Center for Asphalt Technology, Test Track Conference, March 27-29, 2018;  Auburn, Alabama

✤ Best Practices for Asphalt Pavements Workshop, April 23, 2018;  Aiea, Hawaii

✤ Best Practices for Asphalt Pavements Workshop - the Next Level, morning of April 24, 2018;  Honolulu, Hawaii

✤ Best Practices for Asphalt Pavements Workshop - the Next Level, afternoon of April 24, 2018;  Honolulu, Hawaii

✤ Best Practices for Asphalt Pavements Workshop, April 26, 2018;  Kapaa, Kauai, Hawaii

✤ Best Practices for Asphalt Pavements Workshop - the Next Level, morning of April 27, 2018;  Kapaa, Kauai, Hawaii

✤ Best Practices for Asphalt Pavements Workshop - the Next Level, afternoon of April 27, 2018;  Kapaa, Kauai, Hawaii

✤ AI Mix Design Technology Workshop, May 5-8, 2018;  Honolulu, Hawaii


Other training opportunities!

Asphalt Institute: Asphalt Emulsion FREE Webinar Series Recordings

National Highways Institute: Full Depth Reclamation, or FDR, is a rehabilitation technique in which the full thickness of the asphalt pavement and a predetermined portion of the underlying materials (that is, the base, the subbase, and/or subgrade) is uniformly pulverized and blended to provide an upgraded, homogeneous material.
 
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