Researchers may make free and open use of the Meriam Library’s digitized public domain materials without obtaining permission. However, some materials in our online collections may be protected by U.S. copyright law (Title 17, U.S.C.). Use or reproduction of materials protected by copyright beyond that allowed by fair use (Title 17, U.S.C. § 107) requires permission from the copyright owners. The use or reproduction of some materials may also be restricted by terms of the Meriam Library’s gift or purchase agreements. Responsibility for determining rights status and permissibility of any use or reproduction rests exclusively with the researcher. The Library asks to be credited as the materials source whenever possible. For information on the use of the images in this collection contact the Special Collections Department at 530.898-6342 or email: specialcollections@csuchico.edu
Description
Photograph shows Under the big top-- Winter rains do not stop the highway work on the upper deck of the Pit River Bridge where paving operations are under way. A heavy canvas tarpaulin, consisting of 20 sections, each 65 feet long and 20 feet wide, covers a 380 foot length of bridge where the concrete is being poured. The huge tarpaulin, supported by poles and cables, is moved ahead as the work progresses. The upper deck is 51 feet wide, including a four lane highway and walkway at either side. The tarpaulin arrangement was worked out by the contractor, American Bridge Company, and the United States Bureau of Reclamation which is in charge of the Central Valley Project. ght
If you're wondering about permissions and what you can do with this item, a good starting point is the "rights information" on this page. See our terms of use for more tips.
Share your story
Has Calisphere helped you advance your research, complete a project, or find something meaningful? We'd love to hear about it; please send us a message.
