Wailua River State Park Rockfall Mitigation, Wailua Ahupua‘A, Puna District, Island of Kaua‘I TMK (4) 3- 9-002:021

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TMK (4) 3-9-002:021; 3-9-002:030

Prepared for:

AECOM Technical Services, Inc. 1001 Bishop Street, Suite 1600 Honolulu, HI 96813

August 2013

PACIFIC CONSULTING SERVICES, INC.

72.0 lvvilei Road, Suite 42.4, Honolulu Havvaii 96817 ARCHAEOLOGICAL MONITORING PROCEDURES EXTENT OF MONITORING The archaeological monitor will conduct a combination of on-call and on-site monitoring of ground-disturbing activities that may impact subsurface proveniences greater than 0.30 cm below surface (cmbs) (1 ft) within the two project areas. Table 3 below provides a list of proposed mitigation actions for Rockfall Location 1 and Rockfall Location 2, and indicates whether the actions will be monitored on an on-call or an on-site basis. Table 3. Proposed Mitigation Measures that Require Archaeological Monitoring. Estimated On-site or On-Call Proposed Mitigation Action Excavation Depth Monitoring Necessary (Range in cmbs) Rockfall Site 1 (Wailua River) Rock bolting and shotcrete of four boulders NA On-call Demolition and removal of one boulder NA On-call In situ cable lashing of one boulder NA On-call Ring netting and cable lashing of two NA On-call boulders Installation of localized netting system, 60 by 30 feet with rock anchors to secure a NA On-call large outcrop Rock scaling to remove all loose surface NA On-site rocks within the limits of the project area Rockfall Location 2 (Fern Grotto) Pulling a boulder (3.0 by 2.0 by 1.0 foot in NA On-call size) away from existing rock fence Installation of a degradable erosion mat on slope abutting trail; involves vegetation clearing, trenching to key in the mat, 0.30-0.60 On-site removal of approximately 4.0 cubic yards of loose soil from bottom of the slope, and hydromulching

Figure 6 presents a Google Earth image showing Rockfall Location 1 and the associated staging area in relation to the location of Poli‘ahu Heiau. Figure 7 shows Rockfall Location 2 in relation to the boat dock by the Fern Grotto. There is no staging area for Rockfall Location 2. With the exception of trenches for the upper and lower erosion mats at Rockfall Location 2 (Fern Grotto), ground-disturbing activities which will range from 0.30 to 0.60 cm deep (1 to 2 ft), most of the mitigation measures will not entail ground disturbing activities that penetrate more than 10 to 15 cmbs. Therefore on-call monitoring is recommended for most of the mitigation measures, and on-site monitoring is recommended for excavation of trenches for the degradable erosion mats at Rockfall Site Location 2 (Fern Grotto), and the rock scaling at Rockfall Location 1.

TREATMENT OF CULTURAL MATERIALS If any subsurface archaeological materials and/or features are encountered during archaeological monitoring of ground-disturbing activities, work will be stopped immediately in the area of the cultural find, and the monitoring archaeologist will investigate the nature of the discovery. If an intact cultural layer, living surface, structural components (e.g., foundations), archaeological sub-surface features (e.g., hearths, pits, postmolds, etc.), artifacts, charcoal, or midden deposits/trash pits are encountered, SHPD will be contacted and consulted on the development of an appropriate mitigation strategy. It is likely the following actions will be taken:  Selected, sorted charcoal samples from discrete fire features will be collected for the possibility of radiocarbon analysis (particularly if the charcoal appears in a prehistoric context). Bulk samples of midden material will be collected, such as shell, bones, etc.  All prehistoric artifacts will be collected  All historic artifacts will be collected unless large trash or refuse pits are encountered, in which case a representative sample of diagnostic artifacts will be collected  Standard documentation will be carried out, including scale maps, profiles, photographs, detailed soil and provenience descriptions, and interpretation  Photographs of excavations will be included in the monitoring report even if no historically significant sites are documented during the monitoring field work

TREATMENT OF HUMAN REMAINS If human remains are identified, work will immediately stop in that locale, and SHPD/DLNR will be notified immediately of the find. No further work will take place in that locale—including screening of back dirt, cleaning and/or excavation of the burial area, or exploratory work of any kind—unless explicitly requested by the SHPD. Any human skeletal remains identified during monitoring shall be treated as an inadvertent discovery and be dealt with in accordance with HAR § 13-300-40. SHPD/DLNR, in consultation with the landowner and the Kaua‘i Island Burial Council (KIBC), will determine whether to preserve in place or relocate. If SHPD makes a determination for removal of the human remains, the consulting archaeologist will remove and treat the human remains in accordance with HAR § 13-300-40.

HALTING OF EXCAVATION ACTIVITY The monitoring archaeologist has the authority to halt construction in the vicinity of a cultural find, so that the provisions of this AMP can be carried out. The consulting archaeological firm will make it clear to the construction personnel that the archaeologist has the authority to halt work when it is deemed appropriate.

PRE-CONSTRUCTION CONFERENCE Before works begins on the project, the on-site archaeologist will explain to the rockfall mitigation construction crew what kinds of sites may be encountered and the procedures to follow if archaeological finds are encounterd, as well as the role of the archaeological monitor. At this time it will be made clear that the archaeological monitor must be on-site for specific ground-disturbing activities (see Table 2), and that the archaeologist has the authority to stop work immediately, if necessary and appropriate.

LABORATORY WORK Artifacts will be catalogued and analyzed, along with any samples of midden materials that have been collected. Charcoal and other datable materials will be submitted for dating analysis, provided samples were collected in situ from prehistoric contexts that show no signs of intermixing with historic materials; e.g., charcoal obtained from distinct fire features in solely pre- contact deposits.

REPORT PREPARATION The archaeological monitor will compile daily monitoring logs. These logs will minimally include a description of daily activities, recorded sites and/or features, personnel on-site, problems encountered, and corrective action taken. Monthly reports will be filed with the SHPD detailing any new sites or features identified within the project area boundaries, if necessary and appropriate. Following completion of fieldwork, an end of field report and a draft archaeological monitoring report will be prepared and submitted to SHPD/DLNR for review. The consulting archaeological firm will submit a final archaeological monitoring report after receiving any comments on the draft report. Should burials and/or human remains be identified, other letters, memos, and/or reports may be requested by the SHPD, and will be provided in accordance with applicable statutes and regulations, and as contractual obligations permit.

COLLECTIONS ARCHIVING Archaeological materials encountered during monitoring will be turned over to the Division of State Parks, Department of Land and Natural Resources at the end of the project.

REFERENCES Bates, G.W. 1854 Sandwich Island Notes by a Haole. New York. Bennett, Wendell Clark 1931 Archaeology of Kauai. Bishop Museum Bulletin 80. Bishop Museum, Honolulu. Buffem, Amy and Michael Dega 2002 Archaeological Monitoring During Temporary Fence Installation at Coco Palms Resort, Wailua Ahupua‘a, Puna District, Kaua‘i Island, Hawai‘i. Prepared by Scientific Consulting Services, Inc., Honolulu. Ms available at the State Historic Preservation Division, Kapolei. Carpenter, Alan B. and Martha Yent 1997a Archaeological Reconnaissance Survey: North Fork of the Wailua River Wailua River State Park, Wailua Ahupua‘a, Kawaihau and Līhu‘e Districts, Island of Kaua‘i. MS on file at State Historic Preservation Department, Kapolei. 1997b Archaeological Survey: Proposed Kayak Landing Site, Wailua River State Park, Wailua Ahupua‘a, Līhu‘e District, Island of Kaua‘i. MS on file at State Historic Preservation Department, Kapolei. Ching, Francis 1968 “Archaeological Surface Survey; Wailua State Park, Kauai.” Memorandum to Mr. J.M. Souza, Jr. dated January 31, 1968. On file at the DNLR, Division of State Parks, State of Hawaii. Dega, Michael and James Powell 2003 Archaeological Monitoring During Phase 1 of the Kauai Rural Fiber Optic Duct Lines Project, Kaua‘i Island, Hawai‘i. Prepared by Scientific Consulting Services, Inc. MS on file at State Historic Preservation Department, Kapolei. Dickey, Lyle A. 1917 Stories of Wailua, Kauai. Hawaiian Historical Society, 25th Annual Report for 1916, Honolulu. Folk, William and Gerald “Kamalu” Ida 1981 A Cultural Resources Reconnaissance for the Wailua River Hydropower Study. Prepared for the U.S. Army Corps of Engineers, Honolulu District, by the Archaeological Research Center, Hawaii. Ms available at the State Historic Preservation Division, Kapolei. Foote, Donald E., Elmer L. Hill, Sakuichi Nakamura, and Floyd Stephens 1972 Soil Survey of the Islands of Kauai, Oahu, Maui, Molokai, and Lanai, State of Hawaii. US Dept of Agriculture Soil Conservation Service in Cooperation with the University of Hawaii Agricultural Experiment Station. U.S. Government Printing Office, Washington D.C. Giambelluca, Thomas, Michael A. Nullet, and Thomas A. Schroeder 2012 Rainfall Atlas of Hawai‘i. Report R76, Division of Water and Land Development, Department of Land and Natural Resources, State of Hawai‘i.

Hammatt, Hallet H. and David Shideler 2007 Archaeological Assessment for the Kūhiō Highway Short-Term Improvements – Kuamo‘o Road to the Temporary Kapa‘a Bypass Road, Wailua Ahupua‘a, Puna District, Kaua‘i. Prepared for Kimura International and the State of Hawaii, Department of Transportation by Cultural Surveys Hawaii. Handy, E.S.Craighill 1940 The Hawaiian Planter. Volume 1, B.P. Bishop Museum Bulletin 161, B.P. Bishop Museum Press, Honolulu. Hoffman, Tracy, David Shideler, Constance O’Hare, Jeff Fong, and Hallett Hammatt 2005 Archaeological Inventory Survey and Subsurface Testing at the Coco Palms Resort Wailua Ahupua‘a, Puna District, Kaua‘i. Prepared by Cultural Surveys Hawaii. Ms available at the State Historic Preservation Division, Kapolei. Joesting, Edward 1984 Kauai, the Separate Kingdom. University of Hawaii Press and Kauai Museum Association, Limited, Honolulu. Kamakau, Samuel M. 1976 The Works of the People of Old. Special Publication No. 61, B.P. Bishop Museum Press, Honolulu. Lydgate, J.M. 1916 Out of the Olden Time at Wailua Kai. Paper presented at the Kauia Historical Society Meeting, November 16, 1916. Macdonald Gordon A. and Agatin T. Abbott 1970 Volcanoes in the Sea. University of Hawaii Press, Honolulu. Pukui, Mary Kawena, Samuel H. Elbert and Esther T. Mookini 1974 Places Names of Hawaii. Revised & Expanded Edition. Honolulu: University of Hawaii Press. Saito, Deborah and Susan Campbell 1987 Register of the Lihue Plantation Company 1850-1968. http://www2.hawaii.edu/~speccoll/p_lihue.html; Accessed July 2013. Smith, Walter J. 1955 Legends of Wailua. Printing Services Corporation, Lihue. State Historic Preservation Department (SHPD) 2013 SHPD to AECOM Chapter 6E-8 Historic Preservation Review - Wailua River State Park Rockfall Mitigation, Wailua Ahupua‘a, Puna District, Island of Kaua‘i TMK (4) 3- 9-002:021. LOG NO. 2013-3955; DOC NO.1307SL14. Soehren, Lloyd J. 1967 “Field Trip Report, Wailuā, Kaua‘i, 18-19 December 1967.” Department of Anthropology, B.P. Bishop Museum, Honolulu. Stauffer, Bob 1993 The Mahele Documents of Wailua, Kaua‘i. Draft Report. State of Hawai‘i, DLNR, Division of State Parks. Thrum, T.G. 1906 Heiau and Heiau Site Throughout the Hawaiian Islands. Hawaiian Almanac and Annual for 1907. Honolulu.

United States Department of Agriculture (USDA) 2013 Natural Resources Conservation Services’ (NRCS) Web Soil Survey. Electronic document, http://websoilsurvey.nrcs.usda.gov. Accessed July 2013. U.S. Fish and Wildlife Service 1982 Final Coordination Act Report, in the Wailua River Hydropower Study. U.S. Army Corps of Engineers, 1983. Wagner, Warren L., Derral R. Herbst, and S. H. Sohmer 1990 Manual of the Flowering Plants of Hawai‘i. 2 vols. University of Hawaii and Bishop Museum Presses, Honolulu. Yent , Martha 1995 Interpretive Plan Hikinaakalā Heiau Site Wailua River State Park Puna District, Kaua‘i. MS on file at State Historic Preservation Department, Kapolei.

Appendix A

Mitigation Design Plans STATE OF HAWAII DEPARTMENT OF LAND AND NATURAL RESOURCES ENGINEERING DIVISION

JOB NO. J45CK41A AILUA RIVER STATE PARK ROCKFALL MITIGATION

0z co WAILUA, KAUAI, HAWAII 0--, TAX MAP KEY 4-4-2-003:008

PREPARED BY: AS'COM 1001 BISHOP ST, SUITE 1600 HONOLULU, HAWAII 96813

LOCATION MAP INDEX TO DRAWINGS APPROVALS

DWG NO. SHT NO. DESCRIPTION N N T- 1 1 TITLE SHEET -@- NIJHAU -@- ~ MOLOl(AI NOT TO' SCALE OAHU C:::::::, NOT TO' SCALE C-1 2 GENERAL AND ROCKFALL MITIGATION NOTES LANAI Ct) ~ AUi a C- 2 3 SITE LOCATION 1 CAR PACIFIC KAHoo...A'M:'. CHI GIN R PROJECT LOCATION OCEAN ENGINEERING SION C-3 4 BOULDER DETAILS 1 DEPARTMENT OF LAND AND NATURAL RESOURCES STATE OF HAWAII C-4 5 BOULDER DETAILS 2 ISLAND OF KAUAI C- 5 6 DETAILS 1

C- 6 7 EROSION MAT - SITE LOCATION 2

KAMALU ROAD DANIEL S. QUINN DATE ADMINISTRATOR Dl\1SION OF STATE PARKS DEPARTMENT OF LAND AND NATURAL RESOURCES

KINIPOPO SHOPPING 1/ll.LAGE SHOPPING CE NTER

KUH!O HIGH WAY

~----WAJ LUA RIVER STATE PARK

_.,,,,.,, SYM • SHT./Of •• "'"S,ON DESCR1P1l0N OAlE \ NO. - I STATE OF HAWAII PACIFJC OC£AN i-'- p.N fl. ,\< DEPARTMENT OF LAND AND NATURAL RESOURCES '<-'v % ENGINEERING DIVISION ~ LICENSED C. PROFESSIONAL WAILUA RIVER STATE PARK ROCKFALL MITIGATION * ENGINEER * No. 6198-C WAILUA, KAUAI, HAWAII

TITLE SHEET

ltllS WORK WAS PREPARED BY ME OR UNDER WY SUPERV1SION ANO SUBMITIED: 03/07/2012 Q'.._... CONSTRUCTIOO OF THIS PRO..CCT 'Mll BE UND£R MY OBSERVATIOO. DATE: MARC H 2012 SCALE: AS NOTED DRAWING NO. T-1

JOB NO . J45CK41A SHEET NO. 1 OF 7 SHEETS BOULDERS 81 THROUGH 83 BOLTING & SHOTCRETE SEE SHEET C-3 ...

NOlES:

1. THE INFORMATION PROVIDED ON PLANS IS BASED ON FIELD MEASUREMENTS. THE CONTRACTOR IS RESPONSIBLE FOR TAKING HIS/HER OWN MEASUREMENTS AND COORDINATING A~ DISCREPANCIES WITH THE ENGINEER PRIOR TO ORDERING ~ MATERIALS.

2. TEMPORARY SAFETY FENCE SHALL BE ERECTED WHERE SHOWN ON PLANS AND SHALL COVER ALL CONSTRUCTION AREA BEFORE ANY SITE CLEARING AND OTHER WORK IS INITIATED. FENCE SHALL BE ADEQUATE TO STOP ALL ROCKS AND OTHER DEBRIS DISTURBED BY CONSTRUCTION ACT1VlllES FROM DROPPING IN OR ENTERING THE RIVER. THE CONTRACTOR SHALL MAINTAIN THE SAFETY FENCE IN PROPER WORK ORDER DURING CONSTRUCTION.

3. SCALING LIMITS PROVIDED ARE APPROXIMATE. CONTRACTOR SHALL PHYSICALLY MARK THE LIMITS OF SCALING AREA. UPON COMPLETION OF MARKING THE SCALING LIMITS, THE CONTRACTOR SHALL REQUEST REVIEW AND APPROVAL FROM THE ENGINEER PRIOR TO PROCEEDING TO SCALING WORK. CONTRACTOR SHALL SCALE AND REMOVE ANY HAZARDOUS ROCKS AND/OR OUTCROPS FROM THE SLOPE WITHIN MARKED LIMITS.

4. ALL RESULTING ROCKS DUE TO SCALING OR DEMOLITION SHALL BE REMOVED TO AN APPROVED LOCATION OFF SITE, OR RELOCATED AS AUTHORIZED BY THE ENGINEER AT AN APPROPRIATE LOCATION NEAR THE BOTTOM OF THE EMBANKMENT AND SECURED USING RINGNETS AND GROUTED ANCHORS AS SHOWN IN DETAIL 1, SHEET C-5.

5. DURING ROCK SCALING AND DEMOLITION, CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING RIVER TRAFFIC SAFETY CONTROL AND PATROL USING MOTOR BOATS.

6. CONTRACTOR SHALL EMPLOY APPLICABLE BEST MANAGEMENT PRACTICES DURING CONSTRUCTION OF THIS PROJECT AS TO PREVENT A~ SILT AND OTHER POTENTIAL CONTAMINANTS FROM LEAVING J THE SITE AND ENTERING THE RIVER. •

•" a

• SKT./OF - SITE LOCATION 1 -NO. STATE OF HAWAII I DEPARTMENT AND NATURAL NOT TO SCALE l-'- p.N R. ,i,, OF LAND RESOURCES •" "'"<> ENGINEERING DIVISION "{" LICENSED roC. •' PROFESSIONAL WAILUA RIVER STATE PARK ROCKFALL MmGATION * ENGINEER * No. 6196-C WAILUA, KAUAI, HAWAII

SITE LOCATION 1

lHIS YitfiK WAS PREPARED BY ME OR UNDER MY SUPERVISION AND DESIGNED : YP SUBMITIED: 03/ 07/2012 CONSTRUCTIOO OF THIS PRO.[CT Will BE UNDER MY OBSERVATIOO. DRAWN: RTN DATE: MARCH 2012 CHECKED: ARN SCALE: AS NOTED APPROVED: DRAWING NO. .r-/itA:z DATE C-2 SHEET NO. 3 OF 7 SHEETS ROCK BOLT LOCATIONS. --s::-1-f-~ SEE OET. 3 & 4, SHEET C-5

it-- ROCK BOLT LOCATIONS. SEE DET. 3 & 4, SHEET C-5

SHOTCRETE AREA--____ BOULDER Bl SUMMARY: ~BOULDER 81 BOULDER SIZE = 10.5' X 6' X 6' ~ NOT TO SCALE MITIGATION METHOD: BOLTING AND SHOTCRETE 3-15' DEEP ROCK BOLTS AT LOCATIONS SHOWN SHOTCRETE VOLUME = 6 CY SHOTCRETE SHALL BE INSTALLED TO FORM A GENERAL PRISM SHAPE NOlES: WITH APPRO X. DIMENSIONS OF 4' (HIGH) X 1O' (LONG) X 4' (WIDE) 1. THE INFORMATION PROVIDED ON PLANS IS BASED ON FIELD MEASUREMENTS. THE CONTRACTOR IS ROCK BOLT LOCATION. RESPONSIBLE FOR TAKING HIS/HER OWN MEASUREMENTS SEE DET. 3 & 4, SHEET C-5 AND COORDINATING ANY DISCREPANCIES WITH THE ENGINEER PRIOR TO ORDERING ANY MATERIALS.

2. SHOTCRETE AREAS ARE SHOWN /JS A GUIDE FOR LOCATION PURPOSES. THE AREAS DO NOT REFLECT THE ACTUAL LIMITS OF SHOTCRETE FOR CONSTRUCTION. CONTRACTOR SHALL USE SHOTCRETE TO THE VOLUMES SPECIFIED AND TO THE LIMITS ACCEPTED BY THE ENGINEER.

3. SHOTCRETE SHALL BE PREPACKAGED WITH A MINIMUM COMPRESSIVE STRENGTH OF 2,500 PSI IN 28 DAYS. CONTRACTOR MAY USE A CUSTOM MIX DESIGN WITH PRIOR APPROVAL FROM THE ENGINEER.

4. FOR SHOTCRETE, CONTRACTOR SHALL SUBMIT TO THE ENGINEER FOR APPROVAL:

~~SHOTCRETE AREA A. MANUFACTURER'S SPECIFICATIONS AND OPERATING INSTRUCTIONS BOULDER 82 SUMMARY: 8. PROPOSED EQUIPMENT TO BE USED DURING ~BOULDER 82 BOULDER SIZE 2.5' X 6' X 2.5' = SHOTCRETE PROCESS ~ NOT TO SCALE MITIGATION METHOD: BOLTING AND SHOTCRETE 2-15' DEEP ROCK BOLTS AT LOCATIONS SHOWN 5. EXACT LOCATION AND ANGLE OF ENTRY FOR ROCK SHOTCRETE VOLUME = 3 CY BOLTS SHALL BE COORDINATED WITH AND APPROVED BY THE ENGINEER. '•

"""5ION S\'ll. SHT./OF D,O,lE NO. STATE OF HAWAII 1-\. ~N R. ,1, DEPARTMENT OF LAND ANO NATURAL RESOURCES l• ENGINEERING ONISION ~"'"" LICENSED '-toC. PROFESStONAL WAILUA RIVER STATE PARK ROCKFALL MmGATION * ENGINEER * WAILUA, KAUAI, HAWAII

BOULDER 83 SUMMARY: BOULDER DETAILS 1 ~BOULDER 83 BOULDER SIZE = 3' X 2.5' X 2.2' THIS VKlRK WAS PREPARED BY ME ~ NOT TO SCALE MITIGATION METHOD: ROCK BOLTING AND SHOTCRETE OR UNDER MY SUPERVISION AND DESIGNED: YP SUBMITIED: 03/07/2012 1-15' DEEP ROCK BOLT AT LOCATION SHOWN CONSTRUCTION OF THIS PRo.ECT 'Mll BE UNDER MY OBSERVATIClt DRAWN: RTN DATE: MARCH 2012 SHOTCRETE VOLU ME = 3 CY CHECKED: ARN SCALE: />S NOTED DRAWING NO.

Slgnahlre-~~~· Expiration ~ ,L______--1.. __ ___.:::_::~~~ of the Licen9II CHIEF C-3 JOB NO. J45C SHEET NO. 4 OF 7 SHEETS LASHING CABLE

LASHING CABLE

TURNBUCKLE CONNECTION SEE DET. 3, THIS SHEET

DEMOLISH BOULDER

WIRE ROPE ANCHORS AT EACH END. SEE DETAILWu

NOTES:

1. THE INFORMATION PROVIDED ON PLANS IS BASED ON FIELD MEASUREMENTS. THE CONTRACTOR IS RESPONSIBLE FOR TAKING HIS/HER OWN MEASUREMENTS AND COORDINATING ANY DISCREPANCIES WITH THE ENGINEER PRIOR TO ORDERING ANY MATERIALS.

2. LASHING CABLES SHALL BE 3/4• SS CABLES SIMILAR TO BOUNDARY WIRE ROPES FOR THE LOCALIZED NET SYSTEM. SUPPORT ANCHORS FOR LASHING CABLES SHALL BE SS WIRE ROPE ANCHORS, SEE WIRE ROPE ANCHOR DETAIL ON SHEET C-5. UTILIZE CABLE ANCHORS FOR LOCALIZED NET SYSTEM AS APPLICABLE AND PRACTICALLY POSSIBLE.

3. STAKE-OUT THE ANCHOR LOCATIONS IN THE FIELD. DO NOT BEGIN DRIWNG UNTIL THE ENGINEER HAS REVIEWED AND APPROVED THE ANCHOR LOCATIONS. BOULDER 84 SUMMARY: ~BOULDER 84 BOULDER 85 SUMMARY: 4. INSTALL THE LASHING FOLLOWING THE CENTERLINES GF THE BOULDER SIZE = 4.5' X 3' X 2' ~BOULDER 85 BOULDERS THAT ARE IDENTIFIED BY THE ENGINEER TO BE ~ NOT TO SCALE MmGATION METHOD: DEMOLISH BOULDER BOULDER SIZE = 1O' X 1O' X 3' ~ NOT TO SCALE MmGATION METHOD: LASHING CABLES STABILIZED. IF ANY EXISTING CONDmON PREVENTS THE LASHING 2-20' LASHING CABLES, 3/4" DIA. TO RUN SMOOTHLY ACROSS THE ROCK FACE, THE ENGINEER MUST BE NOTIFIED PRIOR TO REMOVAL OF ANY CONFUCTING 4-1 O' DEEP WIRE ROPE ANCHORS AT EACH END 1 TURNBUCKLE ON EACH CABLE CONDmONS. SECURE ALL WITH LOCALIZED NET SYSTEM 5. USING THE TURNBUCKLE, TIGHTEN ALL CABLE LASHING ALLOWING SLIGHT TENSION IN THE CABLES. TURNBUCKLES SHALL BE HOT-DIPPED GALVANIZED. SEE DETAIL 3, THIS SHEET. WIRE ROPE ANCHOR JAW c!c JAW TURNBUCKLE, WIRE ROPE CUP LOOP SEE DETAIL(i'\ 6. SUBMIT FOR REVIEW: MANUFACTURER'S LITERATURE FOR 1• X 18• u INSTALLATION INSTRUCTION AND DATA SHEETS FOR LASHING CABLES, TURNBUCKLES AND ANY OTHER MISCELLANEOUS MATERIALS USED.

7. IMMEDIATELY NOTIFY THE ENGINEER IF ANY CONFLICTS OR J DESTABILIZATION OF THE ROCK FACE OCCURS WHILE THE CABLE TOP VIEW LASHING IS BEING INSTALLED. a 'e

• JAW c!c JAW TURNBUCKLE, WIRE ROPE CUP LOOP 1" X 18" SYM. SHT./Of APPROVED WIRE ROPE ANCHOR """"°"NO. "''"""'""'" SEE DETAILW STATE OF HAWAII DEPARTMENT OF LAND AND NATURAL RESOURCES u t-'- ~N R. JI, · BOULDER DETAILS 2

THIS WCH< WAS PREPARED BY ME OR UNDER MY SUPERVISION AND DESIGNED: YP SU BMIITED: OJ/07 /2012 CONS1RUCTIOO ~ 1HIS PRO.ECT ~ TURNBUCKLE CONNECTION. lYP. Will BE UM>ER MY OBSERVAll(J( DRAWN: RTN OATE: MARCH 2012 ~ NOT TO SCALE CHECKED: ARN SCAUE: AS NOTED DRAWING NO. 4/30/14 t, G111 /',Z. of the License CHIEF DATE C-4 JOB NO. J45CK SHEET NO. 5 OF 7 SHEETS TAG LINE, WHERE SPECIFIED OR AS NECESSAIRY. IF FRACTURE IN BOULDER RESULTS FROM DRILLING OR POST-TENSIONING, NOTIFY ~' SUPPORT CABLE UNLESS NOTED OTHERWISE, THE ENGINEER IMMEDIATELY FOR PVC COATED, STAINLESS STEEL lYPE 304 OR 2-STEP GROUT INSTALLATION IN ALTERNATIVE BOULDER MITIGATION 316, COLOR BLACK. ACCORDANCE WITH INDUSTRY MEASURES, AS NOTED IN CONTRACT STANDARDS AND THE REQUIREMENTS RING NET MESH, OR APPROVED OTHER. OF THE SPECIFICATIONS FOR THREADED BAR ROCK BOLT. (ROCK BOLT SHALL BE GROUTED ALONG ENTIRE LENGTH OF BOLT) -"- ~ ROCK BOLT, lYP. / SEE DET. 4 THIS SHEET. WIRE ROPE ANCHORS, 1" DIA. MINIMUM, MIN. 10' DEPTH, 6 BY 19 CONSTRUCTION, \ '\ STAINLESS STEEL TYPE 304 OR 316. / -l-t---4~ 1 DRILL MIN. 3" DIA., MIN. 1O' DEEP HOLE, 1" DIA SS THREADED BAR, 90' INTO ROCK FACE. SEE DET. 2 THIS PERPENDICULAR (90'±) SHEET. EMBED THE ROPE ANCHORS. TO SLOPE SURFACE GROUT SOLID. NUMBER OF ANCHORS SHALL BE APPROVED BY THE ENGINEER. LOCATIONS OF THE ANCHORS TO BE AREA OF INITIAL GROUTING WITHIN MARKED BY THE CONTRACTOR IN THE THE EMBEDMENT LENGTH -----Ao~(i! FIELD. NOTE:

1. UPON WRITIEN APPROVAL BY THE TYPICAL ROCK OUTCROP ENGINEER, THE CONTRACTOR MAY STORE ROCK DEBRIS USING DRILL 3'~ (MIN.) X 10' DEEP HOLE LOCALIZED NETIING SYSTEM. IN SUCH (MIN.) INTO GROUND, 90'± CASE, THE CONTRACTOR SHALL (PERPENDICULAR) INTO ROCK FACE. PROVIDE A DETAILED PLAN SHOWING EXACT LOCATION AND SPACING OF ROCK QUANTITIES AND LOCALIZED ANCHORS TO BE DETERMINED IN NET SYSTEM DETAILS AS SHOWN THE FIELD BY ENGINEER. 3/8" SEAM WI RE ROPE CONNECTION HERE. BETWEEN SUPPORT CABLE AND RING NET, OR APPROVED OTHER. STAINLESS STEEL 2. STORAGE OF ROCK DEBRIS USING A lYPE 304 OR 316. PVC COATED, COLOR LOCALIZED NET SYSTEM SHALL BE BLACK. ON RELATIVELY GENTLE SLOPES. PLAN SECTION LD ROCK BOLT ANCHOR (POST-TENSION). 1YP. ~ LOCALIZED NET SYSTEM FOR ROCK ~ NOT TO SCALE DEBRIS DETAILS (OPTION) ~ SECURE WIRE MESH TO BOUNDARY ROPE NOT TO SCALE AND RING NET WITH PRESS CLAWS.

SS THIMBLE NOTES:

1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING TEMPORARY MEANS OF PROTECTION AGAINST FALLING ROCKS SUCH AS IMPACT FENCES AND CABLE NETIING IN AREAS WHERE ROCKFALL SS SWAGE POTENTIAL EXISTS DUE TO DISTURBANCE OF ROCKS OR NEARBY ROCKS BY DRILLING OR CONTRACTOR OPERATIONS.

2. ALL EXPOSED METAL SHALL BE EITHER POWDER COATED OR PRIMED AND PAINTED WITH FLAT BLACK ------COLOR WITH AN ENGINEER APPROVED PAINT.

3. ALL METAL COMPONENTS (EXCEPT FOR STAINLESS STEEL) SHALL BE HOT DIP GALVANIZED FOR CENTRALIZER, 5' ON CENTER, MIN. TWO CORROSION PROTECTION.

4. ALL CABLE ANCHORS AND ROCK BOLTS SHALL BE GROUTED IN THE PRESENCE OF THE ENGINEER. ANY GROUTING PERFORMED WITIHO UT THE ENGINEER'S PRESENCE IS GROUNDS FOR WIRE ROPE ANCHOR, 1" DIA, SINGLE. 6 BY 19 REJECTION OF THE ITEM, AND SHALL BE REPLACED AT THE CONTIRACTOR'S EXPENSE. GROUT CONSTRUCTION, STAINLESS LOCALIZED NET SYSTEM WITH RING SHALL BE NON-SHRINK WITH A MINIMUM COMPRESSIVE STRENGTH OF 6,000 PSI IN THREE STEEL lYPE 304 OR 316 ~ DAYS. ~ NET UNDER WIRE MESH. 1YP. 5. ALL ROCK ANCHORS AND ROCK BOLTS SHALL BE FULLY GROUTED. 1O' (MIN.) NOT TO SCALE 6. ROCK BOLT TENSIONING SHALL BE PERFORMED AT THE PRESENCE OF THE ENGINEER.

I 3' DIA 2-STAINLESS STEEL NUTS BORE HOLE ROCK BOLT W/ ASSEMBLY HEAD, OR SS SS WASHER -~ CENTRALIZER SPACED " 1-8" x 8" x 1/2" MIN. STAINLESS TIHREADED BAR, ANCHOR DEPTH AS REQ'D @ 5' -0" ON CENTER REVISION STEEL PLATE WITH 1/2'' RADIUS, lYP. TO PROVIDE THE MINIMUM PULLOUT SYM. DESCRIPTION SHT./Of >PPRO\IEO • MINIMUM 2 PER BAR NO. ~~l~BOULD~----.t;:::=:;:;::==t ALL CORNERS DESIGN CAPACllY AS INDICATED IN THE SPECIFICATIONS. SEE SHEET C-3 FOR STATE OF HAWAII CENTRALIZER @ 2)f MINIMUM EMBEDMENT DEPTH FOR ROCK 1>-'-i'N fl. ,., DEPARTMENT OF LAND AND NATURAL RESOURCES SS SWAGE I 1" MIN . ALL AROUND ENGINEERING DIVISION FROM ANCHOR BOTIOM I BOLTS. 'le<:, 'lf-o . T LICENSED C... / BORE HOLE- -' PROFESSIONAL WAILUA RIVER STATE PARK ROCKFALL MITIGATION • ROCK BOLT WITH 3" DIA. BORE HOLE _ _,, * ENGINEER * a No. 6198-C WAILUA, KAUAI, HAWAII § ~--1-1---'-- ASSEMBLY HEAD NEAT CEMENT GROUT--~ I DETAILS 1 ~ SECTION NOTE: AFTER FINAL TIGHTENING OF THE STEEL NUTS, nos WOOK WAS PREPARED BY ME NOT TO SCALE APPLY JB WELD TO TOP NUT. OR UNDER MY SUPER\o1SION AND DESIGNED: YP SUBMITTED: 03/ D7/2012 ~~~OESCA~OPE ANCHOR. 1YP. CONSTRUCllOO Of THIS PRo..tCT ! @ Will BE UNDfR M BSERVATIOO. DRAWN: RTN DATE: MARCH 2012 CHECKED: ARN SCALE: AS NOTED ' Lb ROCK BOLT ANCHOR DETAIL. 1YP. DRAWING NO . 1 ~._l ______~~:s~~ N=OT~TO:..::SC:A:LE:______l '~;"':'.''":'."===]E,p~:~:.,~of the License··~ :1~~~~~z::s=--=~=/i~A/~//IE~lt.=J_~C~-~5~J JOB NO. J45CK41 A SHEET NO. 6 OF 7 SHEETS SITE LOCATION NOT TO SCALE

WAILUA RIVER STATE PARK ROCKFALL MITIGATION SKETCH NO. 1 of 4 WAILUA, KAUAI, HAWAII JOB NO. J45CK41A ADDENDUM 2 REVISED DETAIL

REVISION NO. SYM. DESCRIPTION REFERENCE SHEET NO.: C- 2 SHOTCRETEAREA

BOULDER 80ULPER86 SUMMARY: 86 BOULDERSIZE = 9' X 5' X 4' NOTTO SCALE MITIGATIONMETHOD: BOLTING ANO SHOTCRETE 2-15' DEEPROCK BOLTS AT LOCATIONSSHOWN SHOTCRETEVOLUME s 1 CY SHOTCRE!ESHALL BE INSTALLEDTO FORMA GENERALPRISM SHAPE WITHAPPROX . DIMENSIONSOF 10' (HIGH) X 1.5' (LONG)X 1• (WIDE)

WAILUA RIVER STATE PARK ROCKFALL MITIGATION SKETCH NO. 2 of 4 WAILUA, KAUAI, HAWAII JOB NO. J45CK41A ADDENDUM 2 REVISED DETAIL

REVISION NO. SYM. DESCRIPTION REFERENCE SHEET NO.: N/A LASHINGCAlll£S SEE SHEETC-4 FOR TYPICALLASHING CABLE DETAILS

BOULDER BOULDERSITE B7 SUMMARY: 87 BLOCKSIZE = 20' X 20' X 12' NOTTO SCALE MITIGATIONIIIETHOO: RING NET AND CABLESTRAPING RINGNET AREA= 40' X 35' I OF ANCHORS= 12-10' ANCHORS(FOUR SHAREDWITH 88) 2-35' CABLESTRAPS

WAILUA RIVER STA TE PARK ROCKFALL Ml TICATl ON SKETCH NO. 3 of 4 WAILUA, KAUAI. HAWAII JOB NO. J45CK41A ADDENDUM 2 REVISED DETAIL

REVISION NO. SYM. DESCRIP TION REFERENCE SHEET NO.: N/ A CABLELASHING SEE SHEETC-4 FOR TYPICAL CABLELASHING DETAILS

TOP AREA BOTTOMAREA NOTTO SCALE NOTTO SCALE

BOULDER88 BOULDERSIT E 88 SUMl.1ARY: BLOCK SIZE = 20' X 20' X 10' NOT TO SCALE MITIGATIONMETHOD: RING NET ANO CABLESTRAPING RINGNET AREA = 40' X 35' 8 Of ANCHORS= 12-1 O' ANCHORS(FOUR SHAREDWITH 87) 1- 35' CA8LESTRAP

WAILUA RI VER STA TE PARK ROCKFALL MITIGA Tl ON SKETCH NO. 4 of 4 WAILUA, KAUAI, HAWAII JOB NO. J45CK41 A ADDENDUM 2 REVISED DETAIL

REVISION NO. SYM. DESCRIPTION REFERENCE SHEET NO.: N/A DEGRADABlf EROSION MAT LIMITS 40' HIGH X 50' LONG

ROCK REMOVAL PULL ROCK AWAY FROM FENCE A DISTANCE OF 5' (MIN). NOT TO SCALI ROCK DIMENSIONS ARE APPROX. 3' X 2' X 1' LOCATION OF ROCK SHALL BE IDENTIFlED AT A PRE-BID MEETING.

EROSION MAT - SITE LOCATION 2 NOT TO SCALI

NOTES: NOTES (CONTINUED): ' 1. THE INFORMATION PROVIDED ON PLANS IS BASED ON FJELD MEASUREMENTS. THE CONTRACTOR IS RESPONSIBlf FOR TAKING 7. EROSION MAT SHALL BE BIODEGRADABlf EROSION CONTROL BLANKET lYPE, OR APPROVED EQUAL. CONTRACTOR SHALL SUBMIT HIS/HER OWN MEASUREMENTS AND COORDINATING ANY DISCREPANCIES WITH THE ENGINEER PRIOR TO ORDERING ANY FOR APPROVAL: • MATERIALS. RlVlS10I+ SYM. SHT./Of DI\TE NO. A. EROSION MAT TYPE. 2. REMOVE EXCESS LOOSE SOIL FROM BOTTOM OF SLOPE. FOR THE PURPOSE OF THIS BID ASSUME A TOTAL OF 4.0 CY OF SOIL STATE OF HAWAII B. DOCUMENTATION OF CERTIFlABLE TESTING WHICH SUPPORTS MANUFAClURER'S REPORTED PRODUCT PERFORMANCE DEPARTMENT OF LAND AND NATURAL RESOURCES SHALL BE REMOVED AND DISPOSED OF AT THE SITE AS DIRECTED BY THE ENGINEER. PROPERTIES. ~'-l'N R. -\.< 4-

Appendix B

Comparative Photographs of the Wailua River

1924 Photograph of Wailua River (Courtesy of Bishop Museum Archives).

2013 Photograph of Wailua River.

Figure B-1. Comparative Photographs of Wailua River.

1934 Wailua River (Courtesy of Bishop Museum Archives).

View makai with Poli‘ahu Heiau on top of ridge to left and river terrace formerly in rice and now pasture.

Figure B-2. Comparative Photographs of Wailua River and Rockfall Location 1 Embankment.

Wailua River ca. 1930s (Courtesy of Hawaii State Archives). 2013 Photo of Wailua River Showing Rockfall Location 1 Embankment.

Figure B-3. View Makai Showing Slope below Poli‘ahu Heiau (Heiau Area is Marked by Coconut Trees). Terraces on Both Sides of the River were formerly in Agriculture (Kalo to Rice) and is now Pasture.

1934 Wailua River (Courtesy of Bishop Museum Archives).

View mauka with fork in the river about center of photo. The river terrace to the right was formerly in rice and is now Kamokila Village.

Figure B-4. Comparative Photograph of Wailua River Where North and South Forks Meet.