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Topic: Dumbarton Bridge (California)

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	Dumbarton Bridge (California) - Wikipedia, the free encyclopedia
		The Dumbarton Bridge is the southernmost of the highway bridges that span the San Francisco Bay in California.
		California clapper rail is a known resident of the western terminus area.
		The bridge is part of California State Route 84, and is directly connected to Interstate 880 by a freeway segment north of the Fremont end.
	en.wikipedia.org /wiki/Dumbarton_Bridge_(California) (1068 words)

	California @ WestCoastRoads - California 37
		California 37 is a major route connecting the cities of the North Bay.
		Although California 37 is an expressway, this major junction is an intersection, not an interchange.
		The Mare Island Bridge is a high bridge that crosses over the Napa River and allows clearance for tall ships to make their way under the bridge, including those vessels en route to the closed Mare Island Naval Reservation.
	www.westcoastroads.com /california/ca-037.html (608 words)

	HCPB-Publication Information
		The native species of land mammals of California which currently do not have state or federal Threatened or Endangered Species status were investigated in order to identify those potentially threatened with extinction Investigations concentrated on determining historic and current distributions, habitat associations, population status, and the nature and proximity of threats of extinction.
		Encourage the protection of all species of bats in California and initiate an educational program to inform the public of the role of bats in control of insects and the sensitivity of bats to disturbance in maternity roosts and hibernacula.
		The western boundary was defined by Williams (1985) as being approximately coincident with the route of the California Aqueduct.
	www.dfg.ca.gov /hcpb/info/mammal_ssc.shtml (11616 words)

	California @ WestCoastRoads - California 84
		California 84 starts its journey at the coast near San Gregorio, then crosses the Santa Cruz Mountains as a two-lane road on its way to Redwood City (Interstate 280) and Menlo Park (U.S. The highway then crosses the bay via the multilane Dumbarton Bridge, adn it meets Interstate 880 in Newark.
		California 84 resumes as a north-south route, this time heading north along the western banks of the Sacramento River (parallel to California 160) all the way to Sacramento.
		Westbound California 84 toll crossing signage at the Dumbarton Bridge in the south bay area.
	www.westcoastroads.com /california/ca-084.html (646 words)

	San Francisco Bay Trail: Bridges
		A new span of the bridge will be constructed by 2004, at which time the existing span will be restriped with a two-way, 12-foot-wide separated path for cyclists and pedestrians.
		Dumbarton Bridge: There is a two-way, eight-foot wide separated path for cyclists and pedestrians on the south side of the bridge; the length is 3.4 miles.
		Golden Gate Bridge: Bicyclists and pedestrians are allowed to cross using the sidewalks; check www.transitinfo.org/bikes/bike_bridge.html for restrictions dictating which sidewalk must be used depending on the time and day of the week.
	www.abag.ca.gov /bayarea/baytrail/bridges.html (505 words)

	Dumbarton Bridge (Site not responding. Last check: 2007-10-17)
		The original Dumbarton Bridge, first vehicular crossing of San Francisco Bay, was opened to traffic on January 15, 1927.
		The bridge was built with private capital and then purchased by the State for $2.5 million in 1951.
		This bridge, a six-lane, high-level structure, was opened to traffic in October 1982.
	www.dot.ca.gov /hq/traffops/hwybrdg/tollbridge/History/Dumbarton.html (210 words)

	California Highways (www.cahighways.org): Routes 81 through 88
		A new Route 84 was built in the early 1980s as part of the Dumbarton Bridge project, and the old portion was resigned as Route 114.
		Before the reconstruction of the Dumbarton Bridge and the construction of the Newark bypass freeway between the east end of the bridge and I-880, Route 84 followed Thornton Avenue from Route 84 southeast to I-880.
		Note that the California Transportation Commission may relinquish the portion of Route 84 within the City of West Sacramento to that city upon terms and conditions that the commission finds to be in the best interests of the state, per SB 104, chaptered 4/21/2003 (Chapter 5).
	www.cahighways.org /081-088.html (7574 words)

	Structural Engineering Slide Library: Set G
		A multi-span concrete highway bridge using both cast-in-place reinforced concrete box girder spans and precast prestressing delta beams for the two spans crossing railway tracks where supporting falsework from the ground was not possible.
		Examples of this can be seen in the cases of the Composite Highway Bridge, Highway Overcrossing, and Dumbarton Bridge, where by adding the deck, both the girder section and the degree of indeterminacy are changed.
		In the case of the Forth Road Bridge, the gross displacements of the unfinished truss are easily seen during the construction of a long-span suspension bridge.
	nisee.berkeley.edu /godden/godden_g.html (809 words)

	Bridging the Bay: Dumbarton Bridge (Site not responding. Last check: 2007-10-17)
		The Dumbarton Bridge connects San Mateo and Alameda Counties, spanning the narrowest neck of San Francisco Bay, between Menlo Park on the west shore and Newark on the east.
		The original structure, the first Bay bridge for vehicles, was built by the Dumbarton Bridge Company for $2.5 million and opened in January 1927.
		The bridge is 8,600 feet (2621.9 meters) long, constructed with steel box girder and pre-stressed concrete, and has a vertical clearance of 85 feet.
	www.lib.berkeley.edu /news_events/exhibits/bridge/dumbart.html (209 words)

	Carquinez Bridge -
		In 2003, as a resolution to seismic problems of the aging 1927 span, a new suspension bridge was built to replace it.
		This new bridge was named the Alfred Zampa Memorial Bridge, after an ironworker who worked on a number of the San Francisco Bay Area bridges, including the Golden Gate Bridge.
		The bridge was dedicated on November 8, 2003 and opened for traffic on November 11.
	psychcentral.com /psypsych/Carquinez_Bridge (367 words)

	Dumbarton Bridge (Site not responding. Last check: 2007-10-17)
		The Dumbarton Bridge in the 1950's is quite different than the one of today.
		The young man was taken to the Dumbarton Bridge and thrown off.
		Before the bridge was constructed, the swamp lands made access into the area difficult.
	www.cestcop.com /Dumbarton (292 words)

	Pier Fishing in California - Dumbarton Pier
		The original Dumbarton Bridge was the Dumbarton Cutoff railroad trestle bridge built by the Southern Pacific Railroad.
		However, the Dumbarton Bridge which served as the precursor to this pier was a highway bridge opened on January 15, 1927.
		By the '60s, it was obvious that the old two-lane bridge needing either an expansion or needed to be rebuilt as a larger bridge.
	www.pierfishing.com /pier_of_the_month/9912.html (1454 words)

	Toll Bridge Site
		The original Antioch Bridge, a two-lane lift span, was the first toll bridge built across a San Francisco Bay tributary.
		The original Dumbarton Bridge, which opened on January 15, 1927, was the first vehicular crossing over the San Francisco Bay.
		Built by the Dumbarton Bridge Company for $2.5 million, the original structure was a combination of truss spans and trestle.
	www.dot.ca.gov /hq/esc/tollbridge/Bridges1.html (571 words)

	MCBC - Bridge bike lane plan gets backing (Site not responding. Last check: 2007-10-17)
		There's more than enough room, she told the commission: The bridge's 12-foot shoulder is three times the size of a standard bike lane.
		Antioch bridge has one 5-foot shoulder that is heavily trafficked by cyclists.
		The Bay Bridge transports cyclists on its bicycle shuttle.
	www.marinbike.org /News/Articles/RSRBridge.htm (575 words)

	TRANSIT: Plans to restore Dumbarton rail service faces obstacles (February 17, 1999)
		When the Dumbarton Bridge began carrying trains in 1910, it was the first bridge to span San Francisco Bay.
		The concept under consideration by the Dumbarton Corridor Task Force calls for nine morning trains to run at 15-minute intervals from the East Bay to the Peninsula, and nine returning in the afternoon.
		The Dumbarton highway bridge last year carried 76,000 trips per day, and that number is expected to increase each year by 5,000 trips per day, he said.
	www.almanacnews.com /morgue/1999/1999_02_17.rail.html (1195 words)

	California Highways (www.cahighways.org): Routes 97 through 104
		The Pioneer Bridge is completed for I-80 (now Business Route 80/US 50/I-305), and while US 99W is still signed on the portion of the West Sacramento Freeway from the Tower Bridge west, this is now officially hidden Route 275.
		Bridge heights originally designed to permit passage of missile-bearing military trucks, for instance, could be waived, while highway shoulder requirements might be retained.
		The tragedy was made worse by the theft of Officer Schumacher's badge from the scene of the accident by a bystander--it being the tradition of the California Highway Patrol since its inception, to memorialize a fallen officer by presenting his or her badge to the officer's family.
	www.cahighways.org /097-104.html (14938 words)

	The Earthquake Engineering Online Archive
		The new bridge is a high-level bridge rising 90 ft above water level over the main channel.
		This slide is taken from the top of the south tower of the old bridge, and the north tower of the old bridge can be seen on the right with a figure on the top of the outside ladder.
		At this stage the structure of the bridge is complete, except for closing the final span with similar steel box girders, and casting the integral concrete deck.
	nisee.berkeley.edu /elibrary/getpkg?id=GoddenG61-80 (1039 words)

	Fact Sheet: Withdrawal of Aquatic Life Water Quality Criteria for Copper and Nickel Applicable to South San Francisco ...
		The State of California adopted numeric aquatic life copper and nickel water quality objectives for south San Francisco Bay, and EPA approved the objectives because they meet the requirements of the Clean Water Act.
		EPA found that the State's numeric site-specific objectives fully protect the designated uses of California's waters in south San Francisco Bay, and are consistent with the CWA and federal regulations.
		California's aquatic life copper and nickel site-specific objectives are now the only applicable aquatic life water quality criteria for copper and nickel in south San Francisco Bay.
	www.epa.gov /waterscience/standards/sanfranbayfinalfs.htm (613 words)

	Librarians' Internet Index: http://lii.org/pub/subtopic/669
		Bridge Projects covers past (cable-stayed, cantilever truss, concrete arch, movable span, segmental, steel arch, and suspension), current, and planned bridge projects worldwide; Learning Center discusses types of bridges, has models, and links to lesson plans; Links categories include bridge failures, covered bridges, bridge sites of state departments of transportation, bridge inspection, magazines, and associations.
		The bridge] is more than 300m (984ft) high — taller even than the country's Eiffel Tower." Includes images and a description of this bridge designed by a British architect, and links to related stories on funding and construction.
		Each existing road, bridge, and tunnel is fully described with an historic overview, including roads and bridges planned at one time, but never built.
	lii.org /pub/subtopic/669 (1412 words)

	Amazon.com: Dumbarton Bridge (1999) : Video (Site not responding. Last check: 2007-10-17)
		Dumbarton Bridge is a marvelous film, one of that rare breed of films that tells a wonderful story while also grappling with something deeply important.
		John's life seems settled, if tenuous: working on the salt ponds around the Dumbarton Bridge, listening to jazz with his girlfriend (she works at Sun Microsystems, a nice touch), shooting skeet.
		But the landscapes Koppelman portrays are the "other" Silicon Valley: the working class homes between the highways and the bay, the fl and Vietnamese communities of East Palo Alto and Hayward, and the bay itself, dominated by the salt ponds carved from its marshes.
	www.amazon.com /exec/obidos/tg/detail/-/B00005ASTJ?v=glance (708 words)

	Dumbarton Bridge - Wikipedia, the free encyclopedia
		The Dumbarton Bridge (California) across San Francisco Bay in California
		The Dumbarton Bridge (Washington, D.C.) across Rock Creek Park in Washington, D.C. This is a disambiguation page: a list of articles associated with the same title.
		If an internal link referred you to this page, you may wish to change the link to point directly to the intended article.
	en.wikipedia.org /wiki/Dumbarton_Bridge (95 words)

	Fact Sheet: Proposed Withdrawal of Aquatic Life Water Quality Criteria for Copper and Nickel Applicable to South San ...
		The State of California has adopted numeric aquatic life copper and nickel water quality objectives for south San Francisco Bay, and EPA has approved these objectives because they meet the requirements of the Clean Water Act.
		When this proposed rule is finalized, the California Regional Water Quality Board for the San Francisco Bay Region will no longer have to write permits using both federal and state water quality standards for south San Francisco Bay; it will only need to comply with state water quality standards.
		California's aquatic life copper and nickel site-specific objectives will then become the only applicable aquatic life water quality criteria for copper and nickel in south San Francisco Bay.
	www.epa.gov /waterscience/standards/sanfranbayfs.htm (662 words)

	Bay Trail: Don Edwards San Francisco Bay National Wildlife Refuge - Fremont - Part 1 - Tidelands Trail and Visitor ...
		The Dumbarton Pier is a popular fishing spot for rays, leopards sharks, white sturgeon, striped bass, and shiner surfperch.
		The segment of the road from the Refuge parking lot to the pier is closed to automobile traffic (but open to bicycle and pedestrian traffic) from April 1 to August 31 every year to protect nesting nesting snowy plovers, whose chicks sometimes wander onto the road.
		The Dumbarton Bridge has a pedestrian and bicycle lane on it that connects to the Bay Trail on the Peninsula.
	www.abag.ca.gov /bayarea/baytrail/vtour/map4/access/Sfbnwr/SFBNWR.htm (3056 words)

	[No title]
		MENLO PARK —; High tide and a 20-foot break in a levee near the Dumbarton Bridge may force the Menlo Park Fire District to close the Ravenswood Preserve frontage road in the future.
		Officials from the fire district, Caltrans, CHP, and California Fish and Wildlife met at the levee Monday to discuss the problem, said Harold Schapelhouman, the fire district's division chief for special operations.
		He adds that the bridge could also be impacted — since the frontage road is next to the freeway — if there's high tide and a "weather event."
	www.insidebayarea.com /portlet/article/html/fragments/print_article.jsp?article=2487747 (327 words)

	facts.html
		The original Dumbarton Bridge, built for 2.5 million, opened in 1927.
		The State of California bought the bridge in 1951 for 2.7 million.
		In December of 1984 the New Dumbarton Bridge opened, and the Old Dumbarton was blown apart by the Army Corps of Engineers and hauled away.
	www.storyispromise.com /dumbarton/facts.html (1086 words)

	cbs5.com - Study of Bridge Suicide Barrier Almost Funded
		A deficit, however, prevented the District from conducting the necessary environmental and structural studies necessary before any decision on actual construction could be made.
		A group advocating for the suicide barrier, the Psychiatric Foundation of Northern California, agreed to help raise the $2 million necessary for the study.
		Blaustein maintains that a suicide barrier that does not diminish the beauty of the bridge is feasible.
	cbs5.com /local/local_story_008221305.html (315 words)

	Dante's Page - Railroad Pictures - Page2 (Site not responding. Last check: 2007-10-17)
		Disused signals on the approach to the Dumbarton railroad swing bridge.
		This was taken from the old Dumbarton Bridge, now a fishing pier.
		The swing bridge is actually fully open at a 90 degree angle.
	w3.the-kgb.com /dante/rail/rrpics2.html (345 words)

	Pozzolan on Pagan Island
		Due to the limited supply of high quality natural pozzolan, in the last 30 years, the USA and European countries were compelled to lower their quality criteria so that waste materials such fly ash could be used as substitute for natural pozzolan.
		For the construction use as an additive for concrete, conforming to ASTM C-618 in the U.S. and GB/T2846 in China, or use as a major ingredient for producing Portland Pozzolan Cement, conforming to ASTM C-595-98 in the U.S. and BS6610: 1996 in the U.K. Major Pozzolan Concrete Projects
		Including the California Aqueduct in the 1960's and the 1970's.
	www.chamorro.com /nongtang (2657 words)

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