Lawlor Island Drainage Channels

Improved Essays
McNabs and Lawlor Island’s collectively measure at approximately 430 ha.
There are several drainage channels on the island. These channels flow into Ives Cove, Finlays Cove, McNabs Cove, Wreck Cove, Timmins Cove, Cullition Point, and McNabs Pond. The channels are fed by gullies at higher elevations. Lawlor Island contains no major drainage channels because of the lack of gullies or depression zones on its surface. The Wolfville soils on the island provide good drainage, the riparian areas control most of the run-off, and there are several ponds located on the near the perimeter of the coast.
There are four major watersheds on McNabs Island. Since most of the drumlins are oriented from northwest to southeast it seems apparent that most of the drainage channels would run between the depressions. An example of this would be the watershed that leads into Ives Cove. It passes underneath a trail, through a wetland area, and into a pond near the coast. The drainage channel is fed from two drumlins on both sides and a gully located above the wetland. Current developments near the shoreline seem to influence the stream direction, perhaps damaging the pond below.
…show more content…
It is approximately 500 metres long, and intersects a developed road and a trail. This watershed is unique because it is fed by two drainage channels running perpendicular to the stream segments after collecting in a very gentle depression between drumlins. The engineered road and trail structures may disrupt the flow, and direction, of water and sediments down to the coast. Cullition Point and Wreck Cove watersheds contain similar features; they both have similar slope styles (~3% drainage gradient slope) located on a gully that is shaped out of one drumlin. Both of these watersheds have wetlands at the base of their stream segments, influenced by the low

Related Documents

  • Improved Essays

    Tully Valley Case Study

    • 721 Words
    • 3 Pages

    Remediation: The mudboils in Tully Valley are caused by artesian pressure. To reduce mudboil sediment discharges from the mudboil depression area to Onondaga Creek, remedial measures were implemented. This includes installing depressurizing wells along Onondaga Creek and around the mudboil depression area to decrease the artesian pressure. Since the majority of mudboils in Tully Valley are located near the Onondaga Creek mudboil passageway and mudboil tributary diversion channel, the majority of the depressurizing wells is placed near those locations as a result.…

    • 721 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    The land and rock-based history of Mesa Verde National Park represents diversity as much as the cultural history. Mesa Verde is located in Southwestern Colorado which is one of the four states that is included in the Colorado Plateau. It became a national park in 1906 in order to preserve and protect the famous cliff dwellings and artifacts. Beginning back in 550 A.D to 1300 A.D, Ancestral Puebloans came to realize the diversity of Mesa Verde National Park and used its landscape to create and maintain life. It was the Spanish explores who created the name Mesa Verde for this area, translating to “green table”.…

    • 1088 Words
    • 5 Pages
    Improved Essays
  • Great Essays

    1. Introduction The Glen Canyon Dam is a dam on the Colorado River in Arizona. It was engineered and constructed in several years, from 1956 to 1964. The main purpose of the dam is to generate electricity for communities and to provide water storage for the Upper Colorado River Basin, which ensures that sufficient water can be released to the Lower Basin [1] [2].…

    • 1401 Words
    • 6 Pages
    Great Essays
  • Great Essays

    Algal fucoid species such as bladderwrack (Fucus vesiculosus), brown algae (Fucus disitichus) were the most abundant species present, followed by animal species such as barnacles (Balanus balanoides), sand fleas (Orchestia agilis) and periwinkles (Littorina littorea). Normally barnacles (Balanus balanoides) dominate the supra-littoral mussels dominate the mid-littoral and infra-littoral zone exposed to wave action (Pederson et al., 2000; Hunt and Scheibling, 1995). However, sheltered shores such as Lawrencetown Beach exhibit more algal fucoid growth in the supra-littoral zone followed by Irish moss (Chondrus crispus) in mid-littoral zone (Blaxter and Southward, 1987). There was less Irish moss observed at the site sampled than that mentioned in the…

    • 1238 Words
    • 5 Pages
    Great Essays
  • Improved Essays

    Kotenai Formation

    • 1380 Words
    • 6 Pages

    All the mapping areas surrounding Dillon has the youngest unit of the Quaternary period, which is the alluvial sediment. Alluvium sediment is an unconsolidated deposit of clay, silt, sand and gravel as a result of stream flows in a river valley or delta. The unlithified deposits fill a basin and lump together to form ‘alluvial’ sediments. Other Quaternary depositions include talus and landslide. Talus occupies both Block Mountain and Timber Hill, while landslide only occupies Block Mountain.…

    • 1380 Words
    • 6 Pages
    Improved Essays
  • Superior Essays

    Pros And Cons Of Damnation

    • 1276 Words
    • 6 Pages

    Damnation: The Removal of Dams Project Name: Institution Affiliation: Date: Damnation This documentary focuses on the eco-system and targets the environmentally conscious public. The movie debates in regards to the United States of America (USA) as a Dam Nation and how the existence of more than 75,000 dams in USA has a negative impact on water consumption and the fish species.…

    • 1276 Words
    • 6 Pages
    Superior Essays
  • Improved Essays

    Louisiana Bay Wetlands

    • 749 Words
    • 3 Pages

    Louisiana Costal Wetlands: Save the Big Easy Across the United States, there are over six million acres of wetland, that shelter countless species of fish, birds, and animals. The nation’s largest coastal wetlands are located in the southern part of the country along the entire Louisiana shoreline. “Louisiana wetland is the perfect habitat for oysters, shrimp, crabs and home to the most abundant fisheries in the world. Louisiana accounts for about thirty percent of the countries’ seafood harvest; providing jobs to thousands of men and women.…

    • 749 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    I found out that a watershed is an area that drains water into a river or a lake, and is composed of uplands and wetlands. Uplands are on higher ground, and wetlands are on lower ground. Watersheds are important because they collect rainwater so that it can be purified and drain into aquifers which are used as a water source by humans. The watershed here is 60,000 acres large. If the watershed did not exist, water would become polluted by the land we live on and drain into canals, which would then empty into the Gulf of…

    • 504 Words
    • 3 Pages
    Improved Essays
  • Great Essays

    Nequasset Case Study

    • 1670 Words
    • 7 Pages

    Since we are in a drought, the flow was very slow, 0.096 ft/sec, and the water depth was low, and anyone could easily walk through the water. The stream’s banks and bank stability were strong and intact. The channel gradient was low and not steep, and the sinuosity was meandering/braided. The embeddedness of the rocks in the stream was about 25%. There was quite an abundant amount of vegetation, the dominant plant species were conifer trees, deciduous trees, and herbaceous.…

    • 1670 Words
    • 7 Pages
    Great Essays
  • Improved Essays

    This data doesn’t support my hypothesis that If we measure farther into the center of the creek then the surface water will travel faster. This data will help us in confirming that despite the amount of pollution in the area that the Conodoguinet creek is not polluted. The test that we performed were as follows Nitrates, Phosphates, Dissolved oxygen, alkalinity, and pH. All these test came back with the results that lead to my conclusion that the Conodoguinet creek. In conclusion, the Conodoguinet creek is a very healthy…

    • 613 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    That’s because most of this river’s streams flow from the Bitterroots. In the Bitterroot’s middle, between Hamilton and Stevensville, the riverbed is mainly small pebbles, sand, and gravel which cause the river to continually “reconstruct” and form new channels every year. For years, even decades landowners have attempted to control the meandering river. They’ve also dredged channels that supply farms with water and to help keep the river from flooding homes.…

    • 650 Words
    • 3 Pages
    Improved Essays
  • Great Essays

    Atchafalaya River History

    • 2878 Words
    • 12 Pages

    A weir was installed in 1988, intended to direct more discharge down the lower Atchafalaya River because it had been aggrading. It was removed in 1994 because of in-creased stages at Morgan City by ~0.3 m (1 ft) (Powell, 1996; Robert set al., 1997). Both channels are influenced by tides and occasional storm surges from tropical and frontal events, and these effects de-crease upstream. Deltas have been growing in the relatively shallow Atchafalaya Bay and initially emerged after a large river flood in 1973. The Atchafalaya is the most original basins because it has a growing system with very stable wetlands.…

    • 2878 Words
    • 12 Pages
    Great Essays
  • Improved Essays

    Monterey County has many aquifers to provide fresh, clean water, 80% of this is groundwater (Public Services, 2010). More groundwater pumping leads to localized over-drafting which in turn causes saltwater intrusion into any of its six water basins: Parajo Valley, Prunedale, Salinas Valley, Marina Fort Ord, Carmel, or El Toro (Public Services, 2010). Arguably the most important basin is the Salinas Valley because it is home to the Salinas River which not only supplies water for the surrounding agricultural fields, but also can also easily overflow and kill the crops if not properly maintained (Ceballos, 2015). Places like the salt marshes of Elkhorn Slough are susceptible to land and mudslides due to the lack of plants and their roots on…

    • 1394 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    How Healthy is the Conodoguinet Creek? What pollutes the Conodoguinet creek? Is the Conodoguinet creek even polluted? Is there even a way to find out if it is even polluted?…

    • 410 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Just when the ducks thought it was over last Sunday, the Junior hunters get one more chance this weekend. Many private clubs will host young hunters who must be under 16 and possess a Junior Hunting license. They will be out with non-shooting adult mentors on Saturday and Sunday. State areas will also be hosting young hunters. In 2014, Governor Brown signed into law AB1709, which extended the age limit for Junior hunters to 17 years of age.…

    • 565 Words
    • 3 Pages
    Improved Essays

Related Topics