Barrier islands are a coastal landform , a type of dune system and sand island , where an area of sand has been formed by wave and tidal action parallel to the mainland coast . They usually occur in chains, consisting of anything from a few islands to more than a dozen. They are subject to change during storms and other action, but absorb energy and protect the coastlines and create areas of protected waters where wetlands may flourish. A barrier chain may extend for hundreds of kilometers, with islands periodically separated by tidal inlets . The largest barrier island in the world is Padre Island of Texas, United States, at 113 miles (182 km) long. Sometimes an important inlet may close permanently, transforming an island into a peninsula , thus creating a barrier peninsula , often including a beach , barrier beach . Though many are long and narrow, the length and width of barriers and overall morphology of barrier coasts are related to parameters including tidal range , wave energy , sediment supply , sea-level trends , and basement controls . The amount of vegetation on the barrier has a large impact on the height and evolution of the island.
72-620: Hatteras Island (historically Croatoan Island , sometimes referred to as Hatorask ) is a barrier island located off the North Carolina coast. Dividing the Atlantic Ocean and the Pamlico Sound , it runs parallel to the coast, forming a bend at Cape Hatteras . It is part of North Carolina's Outer Banks and includes the communities of Rodanthe , Waves , Salvo , Avon , Buxton , Frisco , and Hatteras . It contains
144-607: A 2-3 hour commute around the Pamlico Sound. During a storm on October 26, 1990, a fishing dredge broke loose from its mooring and destroyed part of the Herbert C. Bonner Bridge, cutting Hatteras Island's only bridge to the north. The bridge was repaired by February 1991. In 2011, Hurricane Irene destroyed part of Highway 12 between Nags Head and Rodanthe . Until the construction of a temporary bridge in October 2011,
216-419: A barrier island does not receive enough sediment to grow, repeated washovers from storms will migrate the island towards the mainland. Wave-dominated barrier islands may eventually develop into mixed-energy barrier islands. Mixed-energy barrier islands are molded by both wave energy and tidal flux. The flow of a tidal prism moves sand. Sand accumulates at both the inshore and off shore sides of an inlet, forming
288-666: A barrier island. Many have large numbers of barrier islands; Florida, for instance, had 29 (in 1997) in just 300 kilometres (190 mi) along the west (Gulf) coast of the Florida peninsula, plus about 20 others on the east coast and several barrier islands and spits along the panhandle coast. Padre Island , in Texas, is the world's longest barrier island; other well-known islands on the Gulf Coast include Galveston Island in Texas and Sanibel and Captiva Islands in Florida. Those on
360-546: A barrier island. They are located at the top of the backshore. The dunes will display characteristics of typical aeolian wind-blown dunes. The difference is that dunes on a barrier island typically contain coastal vegetation roots and marine bioturbation. The lagoon and tidal flat area is located behind the dune and backshore area. Here the water is still, which allows fine silts, sands, and mud to settle out. Lagoons can become host to an anaerobic environment. This will allow high amounts of organic-rich mud to form. Vegetation
432-431: A certain token of their safe being at Croatoan, which is the place where Manteo was born, and the savages of the island our friends. White had instructed them that if anything happened to them, they should carve a Maltese cross on a tree nearby, indicating that their disappearance had been forced. As there was no cross, White took this to mean they had moved to "Croatoan Island" (now known as Hatteras Island). Upon finding
504-506: A characteristic drumstick shape, with a wide portion at the northern end near the mouth of Phillipi Creek. Barrier islands are critically important in mitigating ocean swells and other storm events for the water systems on the mainland side of the barrier island, as well as protecting the coastline. This effectively creates a unique environment of relatively low energy, brackish water . Multiple wetland systems such as lagoons, estuaries, and/or marshes can result from such conditions depending on
576-596: A cross-state introductory riding tour on July 1, 1929 to show off the new agency's personnel to the state. On the following day, the first officer death occurred when Patrolman George I. Thompson, who was driving his motorcycle in the procession, was killed in a traffic collision in Anson County (see below for line-of-duty deaths). In 1931, the General Assembly increased the Patrol to 67 members and reduced
648-425: A flood delta or shoal on the bay or lagoon side of the inlet (from sand carried in on a flood tide), and an ebb delta or shoal on the open water side (from sand carried out by an ebb tide). Large tidal prisms tend to produce large ebb shoals, which may rise enough to be exposed at low tide. Ebb shoals refract waves approaching the inlet, locally reversing the longshore current moving sand along the coast. This can modify
720-422: A patrolman, they would call certain selected stores, gas stations and post offices in the particular patrolman's district and ask the employees or personnel to watch for and to flag the patrolman down the next time he was seen passing by and to tell him to call in. If patrolmen arrested a violator, they would have minor offenders follow them to the justice of the peace office or courthouse. If they physically arrested
792-404: A small tidal range and a wave-dominated coast, there must be a relatively low gradient shelf. Otherwise, sand accumulation into a sandbar would not occur and instead would be dispersed throughout the shore. An ample sediment supply is also a requirement for barrier island formation. This often includes fluvial deposits and glacial deposits . The last major requirement for barrier island formation
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#1732776445656864-507: A small to moderate tidal range. Coasts are classified into three groups based on tidal range : microtidal, 0–2 meter tidal range; mesotidal, 2–4 meter tidal range; and macrotidal, >4 meter tidal range. Barrier islands tend to form primarily along microtidal coasts, where they tend to be well developed and nearly continuous. They are less frequently formed in mesotidal coasts, where they are typically short with tidal inlets common. Barrier islands are very rare along macrotidal coasts. Along with
936-401: A violator, the patrolmen would hide their motorcycle in brush and drive an offender to the local jail in his own vehicle. All patrolmen were assigned individual vehicles in 1937, and over the passing decades, numerous executive, legislative, and administrative changes have occurred since the Patrol's creation. The duties and responsibilities have varied, different ranks have been designated, and
1008-414: Is a stable sea level. It is especially important for sea level to remain relatively unchanged during barrier island formation and growth. If sea level changes are too drastic, time will be insufficient for wave action to accumulate sand into a dune, which will eventually become a barrier island through aggradation . The formation of barrier islands requires a constant sea level so that waves can concentrate
1080-604: Is also common. Barrier Islands can be observed on every continent on Earth, except Antarctica. They occur primarily in areas that are tectonically stable , such as "trailing edge coasts" facing (moving away from) ocean ridges formed by divergent boundaries of tectonic plates, and around smaller marine basins such as the Mediterranean Sea and the Gulf of Mexico . Areas with relatively small tides and ample sand supply favor barrier island formation . Moreton Bay , on
1152-817: Is conducted by the North Carolina Wildlife Enforcement and the North Carolina Marine Patrol . On federal lands, patrols are also conducted by the US National Park Service the US Fish and Wildlife Service , the US Marine Patrol , along with US Coast Guard . The Island has one Coast Guard station. The Station is located adjacent to the ferry terminal. The station has two 47 foot Motor Lifeboats and other small craft. Additionally,
1224-459: Is heavier, bioturbation is not likely. The lower shoreface is constantly affected by wave action. This results in development of herringbone sedimentary structures because of the constant differing flow of waves. The sand is coarser. The foreshore is the area on land between high and low tide. Like the upper shoreface, it is constantly affected by wave action. Cross-bedding and lamination are present and coarser sands are present because of
1296-768: Is known for sport fishing, surfing , windsurfing and kiteboarding , and Hatteras Village is known as the " Blue Marlin Capital of the World". The island is one of the longest in the contiguous United States , measuring 42 miles (68 km) along a straight line from end to end, or roughly 50 miles (80 km) along the curve of the land. The island, because of its function as a barrier island and its low lying profile, has experienced significant coastal erosion because of sea level rise . Some sections have significantly eroded already, with portions of Hatteras Island at 25% of its original width as of 2014. The Croatoan Indians were
1368-447: Is less than a critical value. The island did not narrow below these values because overwash was effective at transporting sediment over the barrier island, thereby keeping pace with the rate of ocean shoreline recession. Sections of the island with greater widths experienced washover deposits that did not reach the bayshore, and the island narrowed by ocean shoreline recession until it reached the critical width. The only process that widened
1440-587: Is modern day Buxton), which is why the Native Americans and the Island were referred to by the English as Croatoans from Croatoan. The story of the missing colony of Roanoke began when John White finally returned to Roanoke on a fifth voyage to the colony, a much-delayed re-supply mission arriving in 1590. At that time, the settlement was found abandoned. The only clues to the colonists' whereabouts were
1512-798: Is the largest division of the North Carolina Department of Public Safety . The patrol's headquarters is located in the DPS headquarters in Raleigh in the Archdale Building downtown. This department also includes the NC State Bureau of Investigation (SBI), NC Alcohol Law Enforcement (ALE), NC Civil Air Patrol , Emergency Management, NC State Capitol Police, and the NC National Guard . Established in 1929,
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#17327764456561584-847: The Banyak Islands (chiefly Tuangku and Bangkaru), Nias , the Batu Islands (notably Pini, Tanahmasa and Tanahbala), the Mentawai Islands (mainly Siberut , Sipura , North Pagai and South Pagai Islands) and Enggano Island . Barrier islands can be observed in the Baltic Sea from Poland to Lithuania as well as distinctly in the Wadden Islands , which stretch from the Netherlands to Denmark. Lido di Venezia and Pellestrina are notable barrier islands of
1656-581: The Lagoon of Venice which have for centuries protected the city of Venice in Italy. Chesil Beach on the south coast of England developed as a barrier beach. Barrier beaches are also found in the north of the Azov and Black seas . Water levels may be higher than the island during storm events. This situation can lead to overwash , which brings sand from the front of the island to the top and/or landward side of
1728-472: The Mississippi River delta have been reworked by wave action, forming beach ridge complexes. Prolonged sinking of the marshes behind the barriers has converted these former vegetated wetlands to open-water areas. In a period of 125 years, from 1853 to 1978, two small semi-protected bays behind the barrier developed as the large water body of Lake Pelto, leading to Isles Dernieres 's detachment from
1800-597: The "whammy" in the 1950s, later RADAR, VASCAR and LIDAR and more recently computerized dispatch through in-vehicle terminals. In World War II, a number of Patrolmen who had served in World War I were recall to active duty and others enlisted, taking leave of absence from the SHP. Many others had served in the Guard or Reserves. Patrolmen assisted the military by being alert for saboteurs and spies by reporting suspicious activity to
1872-1082: The East Coast include Miami Beach and Palm Beach in Florida; Hatteras Island in North Carolina; Assateague Island in Virginia and Maryland ; Absecon Island in New Jersey, where Atlantic City is located; and Jones Beach Island and Fire Island , both off Long Island in New York. No barrier islands are found on the Pacific Coast of the United States due to the rocky shore and short continental shelf, but barrier peninsulas can be found. Barrier islands can also be seen on Alaska 's Arctic coast. Barrier Islands can also be found in Maritime Canada, and other places along
1944-711: The FBI. Deserters and AWOLS were also arrested. By 1946, all personnel on military status had returned to duty with the Patrol. As of 2008, the North Carolina State Highway Patrol had an authorized strength of over 1,800 sworn law enforcement officers. In 2018, the NC State Highway Patrol arrested 19,910 people for Driving While Impaired and investigated 1,037 fatalities on North Carolina highways. The Motor Carrier unit fined thousands of truck drivers for various violations. In
2016-562: The Gulf coast of the Florida peninsula, including: the North and South Anclote Bars associated with Anclote Key , Three Rooker Island , Shell Key , and South Bunces Key . American geologist Grove Karl Gilbert first argued in 1885 that the barrier sediments came from longshore sources. He proposed that sediment moving in the breaker zone through agitation by waves in longshore drift would construct spits extending from headlands parallel to
2088-649: The Highway Patrol were the command staff and they were sent to the Pennsylvania State Police Academy for training. Upon their graduation and return to North Carolina, these men established the first basic school at Camp Glenn, an abandoned World War I Army Camp in Morehead City where Carteret General Hospital is now located. Several extra recruits were brought to the original basic school and were sent home as alternates, in
2160-474: The Island has a small rescue squad that helps rescue people from the water, and help with marine safety. The rescues squad headquarters are in Buxton, North Carolina For many years, the only ways to reach Hatteras Island was by ferry and footpath. In November 1963, the Herbert C. Bonner Bridge was completed, connecting Hatteras Island to the northern Outer Banks. The bridge's namesake, Herbert Covington Bonner ,
2232-463: The NC State Highway Patrol's mission is to ensure safe and efficient transportation on the streets and highways, reduce crime, protect against terrorism, enforce motor vehicle laws, and respond to natural and man-made disasters. North Carolina, like many Southern states, was distrusted by the federal government from starting a "state police" agency, due to concerns that the department would be used for political motives to intimidate blacks from voting in
Hatteras Island - Misplaced Pages Continue
2304-629: The area without looking further for the colonists. While there are no incorporated places on Hatteras, there are several resort communities along the length of the island. From north to south these are: As there are no incorporated places on Hatteras, the island is patrolled primarily by the Dare County Sheriff's Office for general law enforcement, and the North Carolina Highway Patrol for traffic enforcement. Additionally, special subject matter law enforcement
2376-399: The barrier beyond the critical width was breaching, formation of a partially subaerial flood shoal, and subsequent inlet closure. Critical barrier width can be defined as the smallest cross-shore dimension that minimizes net loss of sediment from the barrier island over the defined project lifetime. The magnitude of critical width is related to sources and sinks of sand in the system, such as
2448-509: The coast. A good example is found at Miramichi Bay , New Brunswick , where Portage Island as well as Fox Island and Hay Island protect the inner bay from storms in the Gulf of Saint Lawrence . Mexico's Gulf of Mexico coast has numerous barrier islands and barrier peninsulas. Barrier islands are more prevalent in the north of both of New Zealand's main islands. Notable barrier islands in New Zealand include Matakana Island , which guards
2520-529: The coast. The subsequent breaching of spits by storm waves would form barrier islands. William John McGee reasoned in 1890 that the East and Gulf coasts of the United States were undergoing submergence, as evidenced by the many drowned river valleys that occur along these coasts, including Raritan , Delaware and Chesapeake bays. He believed that during submergence, coastal ridges were separated from
2592-583: The commander of the SHP must meet all trooper requirements, including completion of the grueling basic trooper training school, thus preventing unqualified political appointees from being named commander. Troopers are currently issued the SIG Sauer P320 chambered in 9mm in service. Over the past decade, troopers were issued the SIG Sauer P320 , SIG Sauer P226 , S&W M&P , and SIG Sauer P229 , all chambered in .357 SIG. In 1921, 150,558 motor vehicles were registered in North Carolina. By 1929,
2664-481: The east coast of Australia and directly east of Brisbane , is sheltered from the Pacific Ocean by a chain of very large barrier islands. Running north to south they are Bribie Island , Moreton Island , North Stradbroke Island and South Stradbroke Island (the last two used to be a single island until a storm created a channel between them in 1896). North Stradbroke Island is the second largest sand island in
2736-544: The ebb shoal into swash bars, which migrate into the end of the island up current from the inlet, adding to the barrier's width near the inlet (creating a "drumstick" barrier island). This process captures sand that is carried by the longshore current, preventing it from reaching the downcurrent side of the inlet, starving that island. Many of the Sea Islands in the U.S. state of Georgia are relatively wide compared to their shore-parallel length. Siesta Key, Florida has
2808-419: The energy of the waves and currents striking the coast. Hence, it is an important aspect of coastal engineering . The shoreface is the part of the barrier where the ocean meets the shore of the island. The barrier island body itself separates the shoreface from the backshore and lagoon / tidal flat area. Characteristics common to the upper shoreface are fine sands with mud and possibly silt. Further out into
2880-585: The entrance to Tauranga Harbour , and Rabbit Island , at the southern end of Tasman Bay . See also Nelson Harbour's Boulder Bank , below. The Vypin Island in the Southwest coast of India in Kerala is 27 km long. It is also one of the most densely populated islands in the world. The Indonesian Barrier Islands lie off the western coast of Sumatra . From north to south along this coast they include Simeulue ,
2952-496: The event that original members quit or were fired. Most of these men were never recalled to duty after 8 weeks of training. Over the years, the agency obtained semi-state police powers with the authority of the Governor to implement it, but this has never been fully done by any NC Governor. Changes in the regulations by the general assembly were made in response to political appointees being named as commander. The changes ensured that
Hatteras Island - Misplaced Pages Continue
3024-551: The first human inhabitants of Hatteras Island. The Croatoans were composed of two groups: the Hatterask and the Kinnakeet. As Native Americans were often named by either their main town, their language, or by what they called themselves, Kinnakeet referred to an area on Croatoan Island (modern day Avon) as did Hatterask (modern day Frisco, not modern day Hatteras village). The central village was called Croatoan (council town, which
3096-526: The formation of barrier islands for more than 150 years. There are three major theories: offshore bar, spit accretion, and submergence. No single theory can explain the development of all barriers, which are distributed extensively along the world's coastlines. Scientists accept the idea that barrier islands, including other barrier types, can form by a number of different mechanisms. There appears to be some general requirements for formation. Barrier island systems develop most easily on wave-dominated coasts with
3168-436: The high energy present by the crashing of the waves. The sand is also very well sorted . The backshore is always above the highest water level point. The berm is also found here which marks the boundary between the foreshore and backshore. Wind is the important factor here, not water. During strong storms high waves and wind can deliver and erode sediment from the backshore. Coastal dunes , created by wind, are typical of
3240-414: The history of the Patrol there have been several ranks that have been abolished: The rank of Patrolman First Class, which was denoted by a one stripe chevron and represented 3 years of service. It was established in the early 1940's, and was abolished in the 1960's. The rank of Corporal was established in 1931 as second in command in each district. It was abolished in 1968. The Rank of Technical Sergeant
3312-427: The island at an angle will carry sediment long, extending the island. Longshore currents, and the resultant extension, are usually in one direction, but in some circumstances the currents and extensions can occur towards both ends of the island (as occurs on Anclote Key , Three Rooker Bar , and Sand Key , on the Gulf Coast of Florida). Washover fans on the lagoon side of barriers, where storm surges have over-topped
3384-524: The island, are common, especially on younger barrier islands. Wave-dominated barriers are also susceptible to being breached by storms, creating new inlets. Such inlets may close as sediment is carried in them by longshore currents, but may become permanent if the tidal prism (volumn and force of tidal flow) is large enough. Older barrier islands that have accumulated dunes are less subject to washovers and opening of inlets. Wave-dominated islands require an abundant supply of sediment to grow and develop dunes. If
3456-407: The island. This process leads to the evolution and migration of the barrier island. Barrier islands are often formed to have a certain width. The term "critical width concept" has been discussed with reference to barrier islands, overwash, and washover deposits since the 1970s. The concept basically states that overwash processes were effective in migration of the barrier only where the barrier width
3528-613: The largest part of the Cape Hatteras National Seashore . Prior to European settlement the island was inhabited by Croatoan Native Americans . The island has a land area of 85.56 km (33.03 sq mi) and a population of 4,322, as of the 2010 census . It lies in parts of Kinnakeet Township and Hatteras Township in Dare County, and Ocracoke Township in Hyde County. Hatteras Island
3600-423: The late 1920s, at a time when lynchings and Ku Klux Klan activities were on the rise following the end of World War I. The vast majority of the 100 NC Sheriffs also did not want to lose political power to a state police agency. These issues were alleviated by establishment of a traffic enforcement agency to police the ever-expanding highways with the enforcement of motor vehicles laws primarily. The original members of
3672-441: The letters "CRO" carved into the bark of a nearby tree and the word "Croatoan" found carved into the palisade of the fort. It is logical that the colonists left on Roanoke had gone back to Croatoan, as they had already lived there and had had a strong relationship with the natives, some of whom had visited England. John White, who made maps showing both Croatoan and Roanoke, wrote in 1590: I greatly joyed that I had safely found
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#17327764456563744-543: The mainland, and lagoons formed behind the ridges. He used the Mississippi–Alabama barrier islands (consists of Cat , Ship , Horn , Petit Bois and Dauphin Islands) as an example where coastal submergence formed barrier islands. His interpretation was later shown to be incorrect when the ages of the coastal stratigraphy and sediment were more accurately determined. Along the coast of Louisiana , former lobes of
3816-585: The mainland. An unusual natural structure in New Zealand may give clues to the formation processes of barrier islands. The Boulder Bank , at the entrance to Nelson Haven at the northern end of the South Island , is a unique 13 km-long stretch of rocky substrate a few metres in width. It is not strictly a barrier island, as it is linked to the mainland at one end. The Boulder Bank is composed of granodiorite from Mackay Bluff, which lies close to
3888-422: The message of CROATOAN carved on the palisade, White also wrote: The next morning it was agreed by the captain and myself, with the master and others to weigh anchor and go for the place at Croatoan where our planters were for that then the wind was good for that place. However, he was unable to conduct a search, as a massive storm was brewing and his men refused to go any further. The next day, they instead left
3960-631: The motor vehicle laws, and assist the motoring public. The organization was designed as a division of the State Highway Commission. The Highway Commission initially sent ten men (later designated as a captain and nine lieutenants) to Pennsylvania to attend the training school of the Pennsylvania State Police. Their mission was to study law, first aid, light adjustments, vehicle operation, and related subjects for use in North Carolina's first Patrol School. The SHP
4032-406: The number of lieutenants to six. The Patrol was increased in size in 1933 to 121 members. Patrolmen were relieved of gasoline inspection duties and given responsibilities for issuing driver licenses and enforcing the new driver license laws. Without vehicular radios, patrolmen were issued 2 rolls of dimes each week so they could phone in for calls on a regular basis. Though the legislature authorized
4104-413: The number of registered vehicles increased to 503,590. As the number of vehicles increased, so did the number of people killed in traffic accidents: 690 deaths in 1929. Traffic control was of such concern that in 1929 the General Assembly passed an act authorizing the establishment of a State Highway Patrol. The new organization was given statutory responsibility to patrol the highways of the state, enforce
4176-439: The ocean the sediment becomes finer. The effect of waves at this point is weak because of the depth. Bioturbation is common and many fossils can be found in upper shoreface deposits in the geologic record . The middle shoreface is located in the upper shoreface. The middle shoreface is strongly influenced by wave action because of its depth. Closer to shore the sand is medium-grained, with shell pieces common. Since wave action
4248-746: The only way of accessing Hatteras Island was by ferry. In March 2016, the North Carolina Department of Transportation (NCDOT) began construction of a bridge to replace the Bonner Bridge. The replacement bridge, named after Senator Marc Basnight, was opened in February 2019. Residents are zoned to Dare County Schools . Zoned schools are Cape Hatteras Elementary School and Cape Hatteras Secondary School . 35°24′30″N 75°29′13″W / 35.40833°N 75.48694°W / 35.40833; -75.48694 Barrier island Chains of barrier islands can be found along approximately 13-15% of
4320-433: The organizational structure has been modified to improve efficiency, to address the needs of the state and in response to changing technology. Examples included an expanded air wing after World War II, implementation of two-way radios, use of helicopters, abolition of fixed-wing aircraft, use of breath testing devices, K-9 dog units, body armor, pursuit vehicles such as Mustangs and Camaros, speed measurement instruments such as
4392-418: The patrol to establish a one-way statewide radio system in 1937, it had many areas of no reception (dead spots), especially in the far eastern coastal areas and more so in the rugged western mountains. The system was flawed in that patrolmen could not answer back. Poor reception made it hard for patrolmen to tell which patrolman was being called, even when they could hear the radio. If dispatchers could not locate
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#17327764456564464-628: The point where the bank joins the mainland. It is still debated what process or processes have resulted in this odd structure, though longshore drift is the most accepted hypothesis. Studies have been conducted since 1892 to determine the speed of boulder movement. Rates of the top-course gravel movement have been estimated at 7.5 metres a year. Richard Davis distinguishes two types of barrier islands, wave-dominated and mixed-energy. Wave-dominated barrier islands are long, low, and narrow, and usually are bounded by unstable inlets at either end. The presence of longshore currents caused by waves approaching
4536-521: The sand into one location. In 1845 the Frenchman Elie de Beaumont published an account of barrier formation. He believed that waves moving into shallow water churned up sand, which was deposited in the form of a submarine bar when the waves broke and lost much of their energy. As the bars developed vertically, they gradually rose above sea level, forming barrier islands. Several barrier islands have been observed forming by this process along
4608-588: The state except for federal or military installations and on the Cherokee Indian Reservation or on Cherokee outlying lands in the western mountains. NCSHP personnel at times conduct formations, inspections, honor guard activities. The primary mission of the North Carolina State Highway Patrol is to ensure safe and efficient transportation on the streets and highways, reduce crime, protect against terrorism, enforce motor vehicle laws, and respond to natural and man-made disasters. The Highway Patrol
4680-585: The surroundings. They are typically rich habitats for a variety of flora and fauna. Without barrier islands, these wetlands could not exist; they would be destroyed by daily ocean waves and tides as well as ocean storm events. One of the most prominent examples is the Louisiana barrier islands . North Carolina Highway Patrol The North Carolina State Highway Patrol ( NCSHP ) is the highway patrol agency for North Carolina which has no per-se "state police" agency. The Patrol has jurisdiction anywhere in
4752-408: The volume stored in the dunes and the net long-shore and cross-shore sand transport, as well as the island elevation. The concept of critical width is important for large-scale barrier island restoration, in which islands are reconstructed to optimum height, width, and length for providing protection for estuaries, bays, marshes and mainland beaches. Scientists have proposed numerous explanations for
4824-412: The world and Moreton Island is the third largest. Fraser Island , another barrier island lying 200 km north of Moreton Bay on the same coastline, is the largest sand island in the world. Barrier islands are found most prominently on the United States' East and Gulf Coasts, where every state, from Maine to Florida (East Coast) and from Florida to Texas ( Gulf coast ), features at least part of
4896-415: The world's coastlines. They display different settings, suggesting that they can form and be maintained in a variety of environments. Numerous theories have been given to explain their formation. A human-made offshore structure constructed parallel to the shore is called a breakwater . In terms of coastal morphodynamics , it acts similarly to a naturally occurring barrier island by dissipating and reducing
4968-608: Was a Democratic congressman who represented the area between 1940 and 1965. The $ 4 million to build the bridge was financed by the State of North Carolina, the U.S. Commerce Department, and the National Park Service. From the south, Hatteras is reached by way of a 40-minute ride on the Ocracoke-Hatteras ferry. Presently there is no direct route linking Hatteras Island to the Hyde County mainland, resulting in
5040-407: Was established in 1951 as third in command in each troop. There were only around eight at a given time in the state and the rank was made almost redundant and obsolete by the addition of the rank of First Sergeant in 1968, and so it too was abolished in 1970. In 1962 the rank of “Air-wing Sergeant” was created and only held by two men, Patrolman Pilot Al Cope and Patrolman Pilot Dan Williams. The Rank
5112-459: Was established in Raleigh to serve as state headquarters, and a district office was established in each of the nine state DOT highway districts. A lieutenant and three patrolmen were assigned to each district. All patrolmen were issued Harley Davidson motorcycles and the lieutenants drove Model A Ford Coupes. The Patrol commander was issued a Buick automobile. The new patrolmen and command staff made
5184-661: Was housed in the Department of Revenue 's Motor Vehicle Bureau until 1941 becoming part of the newly formed NC Department of Transportation, but was again transferred to the newly formed Department of Crime Control and Public Safety in the mid-1970s. This agency more recently became the Department of Public Safety, which expanded to absorb other agencies including the State Bureau of Investigation and other state departments dealing with statewide law enforcement. An office
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