Saikai ( 西海市 , Saikai-shi ) is a city located in Nagasaki Prefecture , Japan . As of 30 June 2024, the city had an estimated population of 25,184 in 12447 households, and a population density of 100 people per km. The total area of the city is 241.84 km (93.37 sq mi).
57-696: Saikai is located on the northern tip of the Nishisonogi Peninsula, surrounded on three sides by the Goto Sea, Sasebo Bay, and Ōmura Bay , and islands scattered around the area. Most of the area has a ria coastline , with a complex, indented coastline. The highest peak on the peninsula is Mount Nagaura, 561 meters above sea level (the summit is in Nagasaki City). The area down to the coast is hilly and includes evergreen broad-leaved forests, cedar and cypress forests, orchards, and farmland, with
114-725: A Joint Legislative Audit and Review Commission (JLARC) study commissioned by the Virginia General Assembly concluded that "given the inability of the state to fund future capital requirements of the CBBT, the District and Commission should be retained to operate and maintain the Bridge–Tunnel as a toll facility in perpetuity". The tunnel sections addressed concerns that a bridge failure across critical shipping lanes would block not only shipping but navy access. The CBBT
171-429: A car make a return trip within 24 hours of the first, the second trip across costs $ 6/$ 1 for off peak/peak season, but only with an EZ-Pass; cash or card payers must pay full fare. Motorcycles pay the same toll as cars without trailers. All other vehicles are charged based on size and purpose and are not subject to the return-trip discount. All tolls must be paid either in cash, debit/credit card, by scrip tickets issued by
228-630: A narrow plain. Nagasaki Prefecture Saikai has a humid subtropical climate ( Köppen : Cfa ) with hot summers and cool winters. The average annual temperature in Saikai is 16.6 °C (61.9 °F). The average annual rainfall is 1,710.7 mm (67.35 in) with June as the wettest month. The temperatures are highest on average in August, at around 26.7 °C (80.1 °F), and lowest in January, at around 7.4 °C (45.3 °F). Its record high
285-482: A pile driver barge called "The Big D", were destroyed. Seven workers were killed at various times during the construction. In April 1964, 42 months after construction began, the Chesapeake Bay Bridge–Tunnel opened to traffic and the ferry service discontinued. The Ferry Commission and transportation district it oversees, created in 1954, were later renamed for the revised mission of building and operating
342-479: Is 17.6 miles (28.3 km) long from shore to shore, crossing what is essentially an ocean strait. Including land-approach highways, the overall facility is 23 miles (37 km) long (20 miles [32 km] from toll plaza to toll plaza) and despite its length, there is a height difference of only six inches (150 mm) from the south to north end of the bridge–tunnel. Artificial islands, each approximately 5.25 acres (2.12 ha) in size, are located at each end of
399-405: Is 36.7 °C (98.1 °F), reached on 21 August 2018, and its record low is −3.4 °C (25.9 °F), reached on 26 February 1981. Per Japanese census data, the population of Saikai in 2020 is 26,275 people. Saikai has been conducting censuses since 1920. The city's population peaked in the 1950s with more than 80,000 people. However, since 1960, Saikai's population has fallen sharply, and in
456-665: Is a coastal inlet formed by the partial submergence of an unglaciated river valley . It is a drowned river valley that remains open to the sea. Typically rias have a dendritic , treelike outline although they can be straight and without significant branches. This pattern is inherited from the dendritic drainage pattern of the flooded river valley. The drowning of river valleys along a stretch of coast and formation of rias results in an extremely irregular and indented coastline. Often, there are naturally occurring islands, which are summits of partly submerged, pre-existing hill peaks. (Islands may also be artificial, such as those constructed for
513-776: Is often confused with the similarly named Chesapeake Bay Bridge , which crosses the Chesapeake Bay farther north in Maryland connecting Annapolis and Kent Island . In December 1606, the Virginia Company of London sent an expedition to North America to establish a settlement in the Colony of Virginia . After sailing across the Atlantic Ocean from England, they reached the New World at the southern edge of
570-624: Is the former town hall of Ōseto. Saikai has a mayor-council form of government with a directly elected mayor and a unicameral city council of 18 members. Saikai contributes one member to the Nagasaki Prefectural Assembly. In terms of national politics, the city is part of the Nagasaki 4th district of the lower house of the Diet of Japan . The economy of the towns in this area were dominated by fishing and whaling in
627-540: The Chesapeake Bay Bridge-Tunnel .) A ria coast is a coastline having several parallel rias separated by prominent ridges, extending a distance inland. The sea level change that caused the submergence of a river valley may be either eustatic (where global sea levels rise), or isostatic (where the local land sinks). The result is often a very large estuary at the mouth of a relatively insignificant river (or else sediments would quickly fill
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#1732771897111684-624: The Edo period , and coal mining in the Meiji period . The area is now primarily agricultural, with forestry products and tourism also of importance. However, on Oshima island, north of Saikai and close to Sasebo, a large shipyard is active building bulk ships and metal structures, i.e. Oshima Shipbuilding , in which the Sumitomo Heavy Industries has shares. Saikai has 11 public elementary schools and six public junior high schools by
741-618: The Lucius J. Kellam Jr. Bridge–Tunnel ) is a 17.6-mile (28.3 km) bridge–tunnel that crosses the mouth of the Chesapeake Bay between Delmarva and Hampton Roads in the U.S. state of Virginia . It opened in 1964, replacing ferries that had operated since the 1930s. A major project to dualize its bridges was completed in 1999, and in 2017 a similar project was started to dualize one of its tunnels. With 12 miles (19 km) of bridges and two one-mile-long (1.6 km) tunnels ,
798-659: The Transportation Infrastructure Finance and Innovation Act , with funds provided by the Infrastructure Investment and Jobs Act . The loan would help pay for the construction of both parallel tunnels. Toll collection facilities are located at both ends of the facility. Tolls are paid in each direction. As of 2024, the toll for cars (without trailers) traveling along the CBBT is $ 16 for off-peak or $ 21 for peak times (Friday through Sunday from May 15 to September 15). Should
855-417: The 1970s it was half what it was 10 years before; by 2020, the population will be only a third of what it was in the 1950s. Sakai is within ancient Hizen Province . The city of Saikai was established on April 1, 2005, from the merger of five towns on the northern tip of Nishisonogi Peninsula : the former town of Saikai, Ōseto , Ōshima , Sakito and Seihi (all from Nishisonogi District ). Its city hall
912-576: The 21st century, however, the preferred usage of ria by geologists and geomorphologists is to refer solely to drowned unglaciated river valleys. It therefore excludes fjords by definition, since fjords are products of glaciation. The funnel-like shape of rias can amplify the effects of tsunamis , as demonstrated in the seismicity of the Sanriku coast , most recently in the 2011 Tōhoku earthquake and tsunami . Chesapeake Bay Bridge-Tunnel The Chesapeake Bay Bridge–Tunnel ( CBBT , officially
969-621: The Atlantic Ocean ("sea side"). For the first 350 years, ships and ferry systems provided the primary transportation. From the early 1930s to 1954, the Virginia Ferry Corporation (VFC), a privately owned public service company managed a scheduled vehicular (car, bus, truck) and passenger ferry service between the Virginia Eastern Shore and Princess Anne County (now part of the City of Virginia Beach) on
1026-630: The CBBT is one of only 14 bridge–tunnel systems in the world and one of three in Hampton Roads. It carries US 13 , which saves motorists roughly 95 miles (153 km) and 1 + 1 ⁄ 2 hours on trips between Hampton Roads and the Delaware Valley and points north compared with other routes through the Washington–Baltimore Metropolitan Area . As of January 2021 , over 140 million vehicles have crossed
1083-618: The CBBT district. Unlike the Interstate Highways that travelers would avoid by taking the bridge–tunnel, the roads in the shortcut have traffic lights. On the Delmarva peninsula to the north of the bridge, travelers may visit nearby Kiptopeke State Park , Eastern Shore National Wildlife Refuge , Fisherman Island National Wildlife Refuge (closed to the public), Assateague Island National Seashore , NASA's Wallops Flight Facility , campgrounds and other vacation destinations. To
1140-409: The CBBT, or via E-ZPass electronic toll collection . The bridge–tunnel began accepting Smart Tag /E-ZPass payments on November 1, 2007. All toll lanes including E-ZPass-only lanes are gated for safety concerns and to turn around inadmissible vehicles. For example: The bridge–tunnel management prohibits bicycles but offers a shuttle van for $ 15. Cyclists must call ahead. It is mandatory that
1197-692: The CBBT. The CBBT was built and is operated by the Chesapeake Bay Bridge and Tunnel District , a political subdivision of the Commonwealth of Virginia governed by the Chesapeake Bay Bridge and Tunnel Commission in cooperation with the Virginia Department of Transportation . Its construction was financed by toll revenue bonds , while operating and maintenance expenses are recovered through tolls . In 2002,
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#17327718971111254-424: The Chesapeake Bay Bridge–Tunnel. The CBBT district is a public agency, and it is a legal subdivision of the Commonwealth of Virginia. The bridge–tunnel is supported financially by the tolls collected from the motorists who use the facility. Eastern Shore native, businessman, and civic leader Lucius J. Kellam Jr. (1911–1995) was the original commission's first chairman. In a commentary at the time of his death in 1995,
1311-624: The Chesapeake Channel and the Port of Baltimore . To address these concerns, the engineers recommended a series of bridges and tunnels known as a bridge–tunnel , similar in design to the Hampton Roads Bridge–Tunnel , which had been completed in 1957, but on a considerably longer and larger facility. The tunnel portions, anchored by four artificial islands of approximately five acres (2.0 ha) each, would be extended under
1368-544: The Eastern Shore and both the peninsula and South Hampton Roads. Eventually, the shortest route, extending between the Eastern Shore and a point in Princess Anne County at Chesapeake Beach (east of Little Creek, west of Lynnhaven Inlet), was selected. An option to also provide a fixed crossing link to Hampton and the peninsula was not pursued. The selected route crosses two Atlantic shipping channels:
1425-571: The Norfolk-based Virginian-Pilot newspaper recalled that Kellam had been involved in bringing the multimillion-dollar bridge–tunnel project from dream to reality. Before it was built, Kellam handled a political fight over the location, and addressed concerns of the U.S. Navy about prospective hazards to navigation to and from the Norfolk Navy Base at Sewell's Point . Kellam was also directly involved in
1482-492: The Thimble Shoals Channel to Hampton Roads and the Chesapeake Channel to the northern Chesapeake Bay. High-level bridges were initially considered for traversing these channels. The United States Navy objected to bridging the Thimble Shoals Channel because a bridge collapse (possibly by sabotage) could cut Naval Station Norfolk off from the Atlantic Ocean. Maryland officials expressed similar concerns about
1539-484: The affected structures are inspected—most recently, a four hour closure after a barge strike in June 2011. As of April 2021 , there have been 16 incidents of vehicles running off the bridge and into the water. In 2017, a truck plowed through the barriers into the sea below; the driver was rescued but died en route to the hospital. In December 2020, a dairy truck crashed through the guardrail near mile 14. Witnesses saw
1596-476: The bridge be checked and serviced every five years. Since servicing the bridge takes about five years, the process is a continuous cycle. The CBBT is the only automobile transportation facility in Virginia with its police department. By original charter from the state, it has authority to enforce the laws of Virginia. Emergency call boxes are spaced at half-mile (0.8 km) intervals. The CBBT promotes
1653-565: The bridge–tunnel as not only a transportation facility to tourist destinations to the north and south, but as a destination itself. For travelers headed elsewhere, the bridge–tunnel can save more than 90 miles (140 km) of driving for those headed between Ocean City, MD ; Rehoboth Beach, DE , Fenwick Island, DE , and Wilmington, DE (and areas north) and the Virginia Beach area or the Outer Banks of North Carolina , according to
1710-561: The bridge–tunnel began in October 1960 after a six-month process of assembling necessary equipment from worldwide sources. The tunnels were constructed using the technique refined by Ole Singstad with the Baltimore Harbor Tunnel , whereby a large ditch was first dug for each tunnel, into which was lowered pre-fabricated tunnel sections cable-suspended from overhead barges. Interior chambers were filled with water to lower
1767-852: The building housing the restaurant and gift shop closed and access to the pier was prohibited starting at the end of September 2017. The building will be demolished and not replaced, and the pier will reopen to the public at the end of the project in 2027. Among the key features of the Chesapeake Bay Bridge–Tunnel are two one-mile (1.6 km) tunnels beneath the Thimble Shoals and Chesapeake navigation channels and two pairs of side-by-side high-level bridges over two other navigation channels: North Channel Bridge (75 ft or 22.9 m clearance) and Fisherman Inlet Bridge (40 ft or 12.2 m clearance). The remaining portion comprises 12 miles (19 km) of low-level trestle , two miles (3.2 km) of causeway , and four artificial islands. The CBBT
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1824-518: The city government, and three public high schools operated by the Nagasaki Prefectural Board of Education. The prefecture also operates one special education school for the handicapped. The city does not have any passenger railway service. The nearest train station is Sasebo Station , with which it is connected by bus. Ria A ria ( / ˈ r iː ə / ; Galician : ría , feminine noun derived from río , river)
1881-586: The crossing suffered delays due to heavy traffic and inclement weather. In 1954, the Virginia General Assembly created a political subdivision , the Chesapeake Bay Ferry District and its governing body, the Chesapeake Bay Ferry Commission. The commission was authorized to acquire the private ferry corporation through bond financing, to improve the existing VFC ferry service. When the CBBT opened, much of
1938-418: The driver drifting in the water—estimated to be about 45 °F (7 °C)—but were unable to rescue him. Despite an extensive search, he remained missing until April 2021, when his body washed up over 100 mi (160 km) south at Cape Hatteras National Seashore between Salvo and Avon . A second truck following the dairy truck encountered strong wind gusts just prior to the accident that blew it into
1995-653: The ferry equipment and vessels used by the Little Creek-Cape Charles Ferry VFC service was sold and moved north to be redeployed to start the Cape May–Lewes Ferry across the 17-mile (27 km) mouth of the Delaware Bay between Cape May, New Jersey and Lewes, Delaware . It still serves transit needs, but the number of pleasure trip passengers increased as the coastal beach resorts developed and grew crowded with vacationers in
2052-505: The island opened in 1964, along with the 625-foot-long (191 m) Sea Gull Pier. Bluefish, trout, croaker, flounder, and other species have been caught from the pier. Since birds use the habitat created by the bridges and islands of the CBBT, birders have travelled to the bridge–tunnel to see them at South Thimble Island and the scenic overlook at the north end. As part of the Thimble Shoal Channel Tunnel twinning,
2109-710: The mainland Western Shore in the South Hampton Roads area. This system, connecting portions of US 13 , was known as the Little Creek-Cape Charles Ferry . In 1951, the northern terminus in Delmarva was relocated to a location now within Kiptopeke State Park . Despite an expanded fleet of large and modern ships by the VFC in the 1940s and early 1950s which were eventually capable of as many as 90 one-way trips each day,
2166-496: The mouth of what is now known as the Chesapeake Bay . They named the two flanking Virginia points of land /capes like gateposts at the entrance to the long extensive estuary after the sons of their king, James I , the southern Cape Henry , for the eldest and presumed heir, Henry Frederick, Prince of Wales , and the northern Cape Charles , for his younger brother, Charles, Duke of York (the future King Charles I). A few weeks later they established their first permanent settlement on
2223-415: The negotiations to finance the ambitious crossing with bonds. According to the newspaper article, "there were not-unfounded fears that (1) storm-driven seas and drifting or off-course vessels could damage, if not destroy, the span and (2) traffic might not be sufficient to service the entire debt in an orderly way. Sure enough, bridge portions of the crossing have occasionally been damaged by vessels, and there
2280-534: The next decades, partly due to the improved swifter transportation with highway, bridge, and tunnel access in the region of three states. In 1956, the General Assembly authorized the Ferry Commission to conduct feasibility studies for the construction of a fixed crossing. The conclusion of the study indicated that a vehicular crossing was feasible. Consideration was given to service between
2337-590: The northern end, a parallel Chesapeake Channel Tunnel will be added to finish the entire length to become a four-lane highway from shore to shore. This project is marked to begin in 2035, which would possibly be open for traffic in 2040, assuming there are no setbacks or delays. In 2021, the United States Department of Transportation loaned $ 338.6 million to the Chesapeake Bay Bridge Tunnel District through
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2394-570: The past); partially for this reason, the parallel trestles are not located immediately adjacent to each other, reducing the chance that both would be damaged during a single incident. In 2013, the CBBT Commission approved a project to construct a second tunnel under the Thimble Shoal channel for an estimated cost of $ 756 million. The project received three bids, all of which would use a tunnel boring machine . The winning company
2451-530: The principal and interest on the bonds. No local, state, or federal tax funds were used in the construction of the project. Construction contracts were awarded to a consortium of Tidewater Construction Corporation and Merritt-Chapman & Scott Corporation. The steel superstructure for the high-level bridges near the north end of the crossing were fabricated by the American Bridge Division of United States Steel Corporation . Construction of
2508-491: The region became known as Virginia and neighboring Maryland 's Eastern Shore . As the entire colony grew, the bay was a formidable transportation obstacle for exchanges with the Virginia mainland on the Western Shore. One of the eight original shires of Virginia , Accomac Shire was established there in 1634, eventually becoming the two counties of modern times, Accomack County in the north and Northampton County to
2565-609: The ria). The Kingsbridge Estuary in Devon , England, is an extreme example of a ria forming an estuary disproportionate to the size of its river; no significant river flows into it at all, only a number of small streams. The word ria comes from Galician ría which comes from río (river). Rias are present all along the Galician coast in Spain . As originally defined, the term was restricted to drowned river valleys cut parallel to
2622-410: The road surface. The older portion of the facility was then reopened on April 19, 1999. The 1995–1999 project increased the capacity of the above-water portion of the facility to four lanes, added wider shoulders for the new southbound portion, facilitated needed repairs, and provided protection against a total closure should a trestle be struck by a ship or otherwise damaged (which had occurred twice in
2679-469: The sections, the sections then aligned, bolted together by divers, the water pumped out, and the tunnels finally covered with earth. The construction was accomplished under the severe conditions imposed by nor'easters , hurricanes , and the unpredictable Atlantic Ocean. During the Ash Wednesday Storm of 1962 , much of the partially completed work and a major piece of custom-built equipment,
2736-656: The south are tourist destinations around Virginia Beach, including First Landing State Park , Norfolk Botanical Garden , Virginia Beach Maritime Historical Museum , Atlantic Wildfowl Heritage Museum , and the Virginia Aquarium and Maritime Science Center . A scenic overlook is located at the north end of the bridge and was formerly located at South Thimble Island, near the south end. At South Thimble Island, passing ships may include U.S. Navy warships, nuclear submarines, and aircraft carriers, as well as large cargo vessels and sailing ships. A restaurant and gift shop on
2793-460: The south. In comparison to mainland regions, commerce and growth was limited by the need to cross the Bay. Consequently, little industrial base grew there, with the oceanfront peninsula staying predominantly rural with small towns and villages oriented towards life on the waters, and most residents made their living by farming and working as watermen, both on the bay (locally known as the "bay side") and in
2850-539: The southern, mainland, side of the bay, several miles upstream along the newly named James River at Jamestown on the northern shore on a close-in island for protection, the first permanent settlement in English North America . Across the bay, the area north of Cape Charles was located along what became known later as the Delmarva Peninsula . As it bordered the Atlantic Ocean to its east,
2907-440: The structure of the country rock that was at right angles to the coastline. However the definition of ria was later expanded to other flooded river valleys regardless of the structure of the country rock. For a time European geomorphologists considered rias to include any broad estuarine river mouth, including fjords . These are long narrow inlets with steep sides or cliffs, created in a valley carved by glacial activity . In
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#17327718971112964-499: The tunnels. The affected pier, shop, and restaurant were closed in September 2017. The machine was built in 2018, after some delays, and was shipped to Virginia. After boring, the machine will also be adding the circular concrete segments which will be delivered into the tunnel via mine cars one at a time. Construction was scheduled to finish in 2023. By August 2022, the second tunnel at Thimble Shoal had been delayed to 2027. At
3021-418: The two main shipping channels. The CBBT was designed by the engineering firm Sverdrup & Parcel of St. Louis, Missouri . In mid-1960, the Chesapeake Bay Ferry Commission sold $ 200 million in toll revenue bonds (equivalent to $ 1.58 billion in 2023 dollars) to private investors, and the proceeds were used to finance the construction of the bridge–tunnel. Funds collected by future tolls were pledged to pay
3078-674: The two tunnels. Between North Channel and Fisherman Inlet, the facility crosses at grade over Fisherman Island , a barrier island that is part of the Eastern Shore of Virginia National Wildlife Refuge administered by the U.S. Fish and Wildlife Service . The columns that support the CBBT's trestles—called piles—would stretch for about 100 miles (160 km) if placed end-to-end, roughly the distance between New York City and Philadelphia. The CBBT has been closed three times for multiple days after being struck by watercraft: Other, less significant strikes have caused shorter closures while
3135-400: Was German-based Herrenknecht , whose machine was 325 ft (99 m) long. The machine, nicknamed Chessie in a naming contest, was capable of moving forward through soil at 2.4 in (61 mm) per minute, or about 50 ft (15 m) per day. At that rate, it was estimated that the tunnel would be dug within about one year. Construction work began in 2017 to prepare the location of
3192-425: Was a long period when holders of the riskiest bonds received no interest on their investment." An icon of eastern Virginia politics, Kellam remained chairman and champion of the CBBT throughout the hard times, and the bondholders were eventually paid as toll revenues caught up with expenses. He continued to serve until he was over 80 years old, finally retiring in 1993. He had held the post for 39 years. The facility
3249-501: Was renamed in Kellam's honor in 1987, over 20 years after it opened. At a cost of $ 197 million, new parallel two-lane trestles were built both to alleviate traffic and for safety reasons. Immediately after completion of the parallel trestles, traffic was diverted to them and the original trestles and roadway underwent a $ 20 million retrofit, repairing the wear and tear of 35 years of service and upgrading certain features, such as repaving
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