Average haul on portion of river under improvement, 4 miles; maximum haul on rivers, 388 miles; total average haul on rivers, 200 miles. TT II. IMPROVEMENT OF THE COLUMBIA RIVER BETWEEN VANCOUVER, WASH., AND THE MOUTH OF WILLAMETTE RIVER. Information concerning the details of this work, with status of improvement, will be found in the summary of this report. OPERATIONS DURING THE FISCAL YEAR 1911. In September a survey was made from the railroad bridge at Vancouver to the mouth of the Willamette River. This survey showed very little change from the previous year. The shoal abreast Hayden Island carried about the same depth of water, and the channel next to the island had a ruling depth of about 9 feet at low water. The channel crossing over from Hayden Island to the Washington shore showed no improvement. It carried a ruling depth of about 11 feet at low water. The dike at the head of Oregon Slough has remained intact and requires no repairs at this time. The district officer is of opinion that maintenance work that can not be done without the construction of additional plant is not worthy of execution by the General Government until such time as dredging plant may be necessary on channels leading to Portland, Oreg. This opinion was expressed in a report of an examination authorized by the river and harbor act of March 3, 1909, and made in April, 1910, and published as House Document No. 42, Sixty-second Congress, first session. Estimate of additional funds required. Amount that can be profitably expended in fiscal year ending June 30, 1913, for maintenance of improvement... 1 $3,000 APPROPRIATIONS. Total appropriations to 1902 (see H. Doc. No. 421, 57th Cong., 2d sess.). June 30, 1906. $110,000 30,000 13, 000 APPENDIX U U. IMPROVEMENT OF RIVERS AND HARBORS IN THE SECOND PORTLAND, OREG., DISTRICT. REPORT OF MAJ. J. F. McINDOE, CORPS OF ENGINEERS, OFFICER IN CHARGE, FOR THE FISCAL YEAR ENDING JUNE 30, 1911. IMPROVEMENTS. 1. Willamette River, above Portland, | 5. Mouth of Columbia River, Oreg. and Yamhill and Long Tom Rivers, Wash. 6. Clatskanie River, Oreg. 7. Cowlitz and Lewis Rivers, Wash. 9. Gauging waters of Columbia River, UNITED STATES ENGINEER OFFICE, SIR: I have the honor to transmit herewith annual report for the fiscal year ending June 30, 1911, pertaining to improvement of rivers and harbors in the second Portland, Oreg., district. Very respectfully, J. F. MCINDOE, Major, Corps of Engineers. The CHIEF OF ENGINEERS UNITED STATES ARMY. UU 1. IMPROVEMENT OF WILLAMETTE RIVER, ABOVE PORTLAND, AND YAMHILL RIVER, INCLUDING THE MAINTENANCE OF LONG TOM RIVER, OREG. For history of this work, projects, and results accomplished, see current summary of this report. OPERATIONS DURING THE FISCAL YEAR 1911. Work on the Willamette River was carried on between Peoria and the mouth of the Clackamas River, a distance of 119 miles. Between Peoria and Corvallis the work consisted of snagging. From Corvallis downstream shoal bars were dredged, repairs were made to the revetment at Independence and to the dam at the head of Lamberts Slough, known as Wheatland Dam. A spur dike of piling and riprap stone was completed at the north end of Independence revetment, and work was commenced on a cut-off dam at Careys Bend. The work was done by the combined dredge and snag boat Mathloma, the dipper dredge Champoeg (formerly No. 2), and a floating pile driver. The dredge Mathloma was in commission from July to November, inclusive, and during December, January, and February was thoroughly repaired and overhauled. The dredge has been in commission continuously from February 21 to the end of the fiscal year, and during the fiscal year has removed a total of 100,316 cubic yards of material from the following bars: The dredge with snagging gear removed, in addition, 150 snags from the bed of the river and 186 from the banks between Wheatland and Portland, also 256 from the bed and 710 from the banks between Peoria and Fairfield. The Mathloma was employed 6 days during April on Lewis River removing 62 snags from the river bed and 64 from the banks. The dredge Champoeg (formerly No. 2) was in commission July to November, inclusive, and during December, January, February, and March was undergoing repairs. The dredge was in commission from April 1 to the end of the fiscal year and has removed during the fiscal year a total of 43,433 cubic yards of material from the following bars: Twenty-six snags were also removed by the dredge from the river in the vicinity of Coffee Chute and Careys Bend. The floating pile driver and crew were at work from July to November, inclusive. High water prevented further operations until April, when work was resumed and carried on to the end of the fiscal year. The work accomplished consisted of repairs to the reyetment at Independence, the construction of a spur dike at the north end of the revetment at Independence, repairs to and reconstruction of Wheatland Dam, the commencement of a dam at Careys Bend, rericving snags, and scraping bars at Budds Chute, Grey Eagle, and the mouth. of the Yamhill River. Following is a summary of operations during the fiscal year: SNAGS REMOVED BY BOAT PARTY BETWEEN CORVALLIS AND PEORIA. |