Page:California Highways and Public Works Journal Vols 8-9.djvu/33

 Most of the above work, especially the construction of bulkheads and current retards, is done by contract, but the placing of quarry rock and the smaller work are done directly by the division. The division has in service a river fleet consisting of seven barges, including mess and sleeping quarters, derrick work barge and pile driver, and also several launches. This outfit is used for certain classes of bank protection work, is well equipped, and may be moved in emergency to any point on the Sacramento project on navigable water.

Outside of the Sacramento Valley.

While the division’s maintenance of flood control works is confined to the Sacramento Valley, cooperative bank protection and river rectification work may be done on other streams wherever local interests require it. A small amount of this work has been done regularly in the past few years on the Mad River in Humboldt County, on Yager Creek in the same county, and on the San Joaquin River. Assistance may be rendered at any place during emergencies in flood time.

As provided in chapter 447, Statutes of 1929, the division is improving the channel of the Mokelumne River in collaboration with San Joaquin County. The river and part of the overflow channel are being cleared of timber growth, and numerous snags are being removed, at a cost of $12,500. The work will be completed by January 8, by a force in charge of a foreman of the division. It is expected that an equal amount will be available to continue the work next year.

In cooperation with the counties of Santa Cruz and Monterey, the channel of the Pajaro River at Watsonville has been cleared of timber growth at a cost of $4,000, by authority of chapter 524, Statutes of 1929. This was completed on December 23 by a crew in charge of a division foreman, and is a continuation of work undertaken last year, when $7,500 was expended. A protective district is being organized to control the floods of the Pajaro River from which there is now no protection other than a clean, natural river channel.

Official journal of the Division of Highways of the Department of Public Works, State of California; published for the information of the members of the department and the citizens of California.

Editors of newspapers and others are privileged to use matter contained herein. Cuts will be gladly loaned upon request.

Address communications to California Highways and Public Works, P. O. Box 1103, Sacramento, California. PROBLEMS IN ROAD BUILDING THAT CALIFORNIA IS NOW INVESTIGATING (Continued from page 6.)

(e) Asphalt emulsion tests.

(f) Asphalt extractor.

(g) Investigation of methods of casting concrete test cylinders to secure uniform results.

(h) Alternate designs of reinforced concrete cribbing members.

Many old studies which were presumably completed are still under observation and are being supplemented from time to time by subsequent information.

The making of new tests and the carrying on of special investigations frequently involves the design and manufacture of new equipment for the purpose. Such equipment is designed and built in the Laboratory and Equipment Shop at Sacramento.

Several such items of equipment may be mentioned:

(a) California type of field beam breaking machine.

(b) Asphaltic concrete stability testing machine.

(c) Strain gauge.

(d) Equipment for measuring friction of expansion plates.

(e) Sticky machine for measuring stickiness of asphaltic oils.

(f) Apparatus for determining soil compaction.

(g) Asphalt extractor (California design).

When studies are completed or the preliminary information secured is of such a nature that it is deemed of value, articles are prepared and published from time to time describing the work done and results secured.

Sub: “Can you name the three orders in architecture?”

General: "Sure! First mortgage, second mortgage, and foreclosure.”