Berryman Reservoir south of today's Codornices Park, above Euclid. The reservoir became part of the East Bay Municipal Utility District system and was enlarged and covered, but has been drained because of fears it might rupture in an earthquake. In 2010 construction was begun on a replacement, a large tank on the site which was put into service in 2013. Early 20th century From 1912 to 1928, a 275-foot-long wooden streetcar and road trestle spanned Codornices Creek along Euclid Avenue. In 1928, the trestle was filled in and a culvert laid through it for the creek. Codornices Creek was recognized early for its beauty. In 1914, the Berkeley City Council voted to acquire Live Oak Park (north of Rose Street between Shattuck and Oxford) as Berkeley's first "nature park." In 1915, Codornices Park was opened along the east side of Euclid Avenue. In that streetcar era, both parks had busy club houses (now gone; Live Oak's was replaced by the current community center) and large picnic areas with stone fireplaces (still existing). Across Euclid from this park, the WPA constructed the Berkeley Rose Garden during the 1930s. The creek once flowed into a swimming hole below today's Henry Street, but today enters a culvert above Henry. This culvert was installed to carry the creek under the extensive fill emplaced along Henry Street by the Southern Pacific when it extended the Berkeley Branch steam line for its new East Bay Electric Lines. Much of the material used for the fill came from the excavation of the nearby Northbrae Tunnel (constructed 1910 by the Southern Pacific). For a time before the fill was emplaced, a wooden trestle also spanned the creek in this locale. Later, a steel bridge spanned a gap left in the fill over Eunice Street. The overcrossing was removed when the Key System ceased running its F-train here in 1958, and more fill was added to bring the uphill portion of Eunice up to the level of Henry Street. The lower portion of Eunice now deadends at a retaining wall below Henry. Downstream, Berkeley's first zoning designated the marshy area near the creek and railroad tracks for "noxious industries." In the 1920s, the city built a garbage incinerator just south of the creek channel at Second Street, across from today's city Transfer Station. The incinerator failed, and the building became a slaughterhouse. (Today it is an official historic landmark,