164 reinforced dolosse (20 tons each) were placed in a double layer on the 

 sea-side slope of the trunk beginning shoreward of the 35-ton tribars; and, 

 extending shoreward, two layers of 6-ton unreinforced dolosse (455 units) 

 were placed on the sea-side slope of the east breakwater trunk. 



The most recent repairs, model tested by the U.S. Army Engineer 

 Waterways Experiment Station (WES) Coastal Engineering Research Center 

 (CERC) (Markle 1982), were completed in 1984. This rehabilitation was 

 carried out in an attempt to eliminate the need for future "piecemeal" repairs. 

 On the east breakwater, one layer of 9-ton tribars was placed on the harbor 

 side between sta 19-1-50 and 27-1-15; also, a concrete rib cap was constructed 

 between sta 19-1-50 and sta 23 -(-80. On the west breakwater, one layer of 

 6.5-ton tribars was placed on the harbor-side slope from sta 19-f-35 to 

 sta 22-1-00. Between sta 17-1-75 and sta 19-1-35, single layers of 6.5-ton and 

 11-ton tribars were placed on the harbor-side and sea-side slopes, respectively. 

 A concrete rib cap also was constructed in this area and at sta 17-1-75, the 

 11 -ton sea-side tribars were buttressed with 25-ton tribars. Five hundred and 

 forty tribars weight 6.5 tons each, 755 tribars weighing 9 tons each, and 

 10 tribars weighing 25 tons each, were placed during the 1984 rehabilitation 

 work. 



Laupahoehoe Boat Launching Facility 



Laupahoehoe Point is located on the north coast of the Island of Hawaii 

 approximately 25 miles north-northwest of Hilo (Figure 6). The County of 

 Hawaii's Laupahoehoe Point Park borders the shoreline of Laupahoehoe 

 Point. The park is primarily used for day picnics, family gatherings, and as a 

 tourist scenic attraction and rest stop. Historically, Laupahoehoe Boat 

 Launching Facility served as a landing where livestock were imported to the 

 area. The park has a concrete loading dock, restrooms, a picnic area, a 

 pavilion, and a paved parking area. In addition, a concrete launching ramp 

 was constructed within the park limits in 1970. By 1984, the existing 

 launching ramp became unsafe. The ramp was located within what would 

 appear to be a sheltered cove, but waves reflecting off adjacent rocky shores 

 created hazardous conditions a large percentage of the time. Local fishermen 

 found launching conditions too hazardous even under relatively calm ocean 

 conditions. For this reason, the county declared the ramp unsafe and posted a 

 sign, "Boat Ramp Closed." 



The waters offshore of Laupahoehoe are very popular and productive for 

 fishing most of the year, but the area was under-used due to closing of the 

 launching ramp. The closest safe launching area was located in Hilo, 

 25 miles away. This extra travel time required more ice, limiting catch 

 hauling capacity and available hours for fishing. As well as hampering 

 fishing, the closed ramp severely limited the ability of the Hilo Rescue Squad 

 and Coast Guard in responding to emergencies on the northeast Hawaii coast. 



Chapter 1 Introduction 



