Ill 



of order and no record was obtained on the 18th. Undoubtedly 

 the (Hscharge exceeded 400 milhon gallons daily. No records 

 were taken on the Palolo, Makiki, or Pauoa streams. It is esti- 

 mated, however, that the total flood run-off on the 18th at an 

 elevation of 400 feet above sea -level in the Plonolulu "basin" 

 (between Fort Shafter and Diamond Head) exceeded 1,000,000,- 

 000 gallons per day. At sea level the run-off was probably three 

 times this amount. 



Correspondingly heavy flood occurred on all Oahu and Alaui 

 streams, the lao stream, on Maui, being the most remarkable 

 instance. It is roughly estimated that the lao stream, with a 

 drainage area of but about three and one-half square miles, dis- 

 charged on the 18th, at an elevation of about 800 feet above sea 

 level, about 1,500,000,000 gallons. 



STORM DAMAGE. 



It is estimated that it will cost this Division about $1,000.00 

 to replace property lost and structures destroyed, and to put 

 trails back into passable condition. 



On Maui the lao stream continuous record station, which was 

 about 15 feet above low water flow, entirely disappeared. The 

 cable, cable car iron frame, turnbuckle and padlock were re- 

 covered. The Stevens instrument went with the shelter. The 

 storm so eroded the valley and changed the stream channel that 

 a good location cannot be found for a new station, and no attempt 

 will be made in the near future to re-establish this station. The 

 continuous record stream measurement stations on the Hanawi 

 and West Wailuaiki streams were damaged by having the in- 

 strument shelters destroyed. The instruments were saved and 

 will be repaired and replaced in the near future. Many staff 

 gages and several foot bridges were swept away, and many miles 

 of upper valley trails were completely blocked. The cross-sec- 

 tion of the Olowalu stream at the site selected for the new^ pro- 

 posed station w^as so changed that it was abandoned. As no 

 other suitable location for this station can be found on this stream, 

 it has been decided to abandon this project and use the instru- 

 ment purchased for it on a continuous record station on the 

 Lahainaluna stream. 



On Kauai and Oahu the damage was limited to the loss of a 

 few staff gages and the blocking of trails. 



COOPERATION. 



A conference with private water users of Maui was held at 

 Paia and Wailuku from the 11th to the 14th, at which the ques- 

 tion of the measurement of water diverted from East Maui gov- 

 ernment lands under the various w^ater licenses, was discussed. 

 Tentative arrangements were made under which the entire time 



