Contractors' and Dealers' Association of California · San Francisco : L. A. Larson · leaf 870
s and used for filling a ravin«extending beyond the portal. At the Laguna Honda Station, which is situated in anarrow valley, the tunnel grade is approximately 70 feetbelow the ground surface and this section is also beingconstructed in open cut. The earth, a sandy clay overlaidat the surface by… … Book Tile of Eureka Valley Station, Manufactured of Local Clay by the Steiger Terra Cotta and Pottery Works. the ground water into the track ballast and thence intoopen joint pipe drains laid in the ballast. Laguna Honda Station is situated at the peak in thegrades of the tunnel at the eastern edge…
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