Price: Cost of necessary labor and supplies, together with necessary traveling expenses of one foreman between San Fancisco and Eureka, Cal., plus 15 per cent.

Date of approval: Emergency contract, not requiring approval by Chief of Engineers.

Date of commencement: July 17, 1915.

Date of expiration: Indeterminate under terms of contract.

Percentage of completion: 100.

Name of lessor: Coggeshall Launch Co.

Amount and character of work: Hire of launch and one or more lighters for use at Humboldt Bay, Cal.

Price: $10 per day of 24 hours for launch; $2.50 per day of 24 hours for lighters.

Date of lease: June 30, 1916.

Date of approval: Lease; not approved by Chief of Engineers.

Date of commencement: July 1, 1916.

Date of expiration: June 30, 1917.

COMMERCIAL STATISTICS.

Season of navigation, year 1915: Opened January 1; closed December 31.

(B) CHANNEL IN FRONT OF EUREKA.

No work was done in this locality during the fiscal year.

See statistics reported under head of Rebuilding jetties, as the commerce of Humboldt Bay can not be segregated.

REPORT OF SACRAMENTO-FEATHER RIVERS BOARD.

IMPROVEMENTS.

1. Sacramento and Feather Rivers, Cal. (general improvement).

Page. 3177

FOR DESCRIPTION OF IMPROVEMENTS UNDER THIS BOARD, SEE PAGES 1573 TO 1579.

1. SACRAMENTO AND FEATHER RIVERS, CAL.

Removal of obstructions.-The Sacramento River was cleared of snags, logs, stumps, and overhanging trees from its mouth to Chico Landing (201 miles). These operations were carried on by the snag boat Seizer with a crew varying from 28 to 38 men. The following is a detailed statement of the obstructions removed in the different portions of the river by the snag boat and crew during the year:

The total cost of removing these obstructions was $20,847.98, or at a cost of $6.29 per obstruction. Gravel bars at Chico Bar, about 1 mile below Chico Landing, at Moulton's, about 12 miles above Colusa, and at Yerxes, about 3 miles below Princeton, were raked by the Seizer to increase the depth of water over them. This work was done at a cost of $1,134.30.

Wing dams. Three new wing dams were built on the Sacramento River; of two of a purely temporary nature built by the crew of the snag boat Seizer one 330 feet long was built about a mile above Chico Landing and cost $1,158.66; another, 625 feet long, at Litch's Bar (about 3 miles above Jacinto) and cost $1,924.66; the third wing dam, of a more permanent nature, was built about 3 miles below Sacramento City with hired labor and with Government plant, at a cost of $1,385.10; it was 230 feet in length. Other dams to the number of 35, of a more permanent nature, located between the mouth of the

59091°-ENG 1916-202

Feather River and Freeport, were repaired and rock added to them at a cost of $6,464.40.

Dredging. Dredging of shoals was resorted to at four places on the Sacramento River at Sacramento Bend; opposite the Sacramento swimming baths; above the Southern Pacific Railroad bridge at Sacramento; and at Sixmile Bar, about 6 miles above Sacramento. At Sacramento Bend a channel, 1,300 feet long and 125 feet wide, was dredged to a depth of 9 feet at a cost of $1,701.12. Opposite the Sacramento Swimming Baths a channel 300 feet long and 100 feet wide was dredged to a depth of 9 feet at a cost of $402.95. Above the Southern Pacific bridge, at Sacramento, a channel 1,200 feet long and 90 feet wide was dredged to a depth of 8 feet, at a cost of $1,031.01. At Sixmile Bar a channel 600 feet long and 90 feet wide was dredged to a depth of 8 feet at a cost of $695.31. The above dredging was done by the dredge Jupiter, hired at the rate of $170 per day of 22 hours actual work, from the Olympian Dredging Co.

Surveys.-Surveys of various shoals in Sacramento River were made during July and August, while the river was approaching the low-water stage. These surveys were made to locate accurately the shoals, their extent, and to determine in ample time what wing dams or dredging would be necessary to maintain the project depths. In some cases surveys were made to determine the effect of the wing dams put in during the previous year. In this way portions of the river were covered by surveys made at Russian Crossing, at Merkeleys Landing, and from the mouth of the American River to Freeport. The cost of these surveys and the platting was $468.86.

APPROPRIATIONS.

Previous projects (acts of Mar. 3, 1875, to Aug. 18, 1894, inclusive; see H. Doc. No. 1491, 63d Cong., 3d sess., p. 540).

Present projects:

$760, 000. 00

The freight and passenger traffic on the Sacramento River is handled by craft which operate on this stream exclusively, and by craft which operate part of the time on other streams (i. e., San Joaquin and Mokelumne Rivers), as follows:

Includes traction engines, farming implements, and harvester outfits.

NOTE. Attention is invited to the fact that, in general, rates and distances carried are known for short hauls of small lots only, and the rates per ton-mile are therefore necessarily large.

Above Sacramento, 146,720 tons of freight were carried, and below Sacramento, 714,762 tons were carriedquite a percentage of the total freight appearing on both sections. On the Feather River, 2,906 tons of freight were transported during the year.