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  • Two Years of Post-Project Monitoring of a Navigation Solution in a Dynamic Coastal Environment, Smith Island, Maryland

    Abstract: In 2018, jetties and a sill were constructed by the US Army Corps of Engineers adjacent to the Sheep Pen Gut Federal Channel at Rhodes Point, Smith Island, Maryland. These navigation improvements were constructed under Section 107 of the Continuing Authorities Program. Material dredged for construction of the structures and realignment of the channel were used to restore degraded marsh. Following construction and dredging, 2 years of monitoring were performed to evaluate the performance of navigation improvements with respect to the prevention of shoaling within the channel, shoreline changes, and impacts to submerged aquatic vegetation (SAV). Technical Report ERDC/CHL TR-20-14 describes the first year of post-project monitoring and the methodologies employed. This report describes conclusions derived from 2 years of monitoring. While the navigation improvements are largely preventing the channel from infilling, shoaling within is occurring at rates higher than expected. The placement site appears stable and accreting landward; however, there continues to be erosion along the shoreline and through the gaps in the breakwaters. SAV monitoring indicates that SAV is not present in the project footprint, even though turbidity is comparable to the reference area. Physical disturbance of the bottom sediment during construction may explain SAV absence.

  • South Jetty rehab close parts of Fort Stevens State Park

    South Jetty rehabilitation will temporarily close the observation tower at Lot “C” at Fort Stevens State Park beginning April 19. Lot “C” and the bathrooms remain open for public access but the tower will be closed until further notice. Construction progress will determine the reopening date and a separate announcement will follow.

  • Corps proposes Kennebunk River jetties and wing walls repair and maintenance project

     The U.S. Army Corps of Engineers, New England District is proposing to repair the east and west

  • Violent confluence of Columbia River and Pacific Ocean make jetty work … weighty

    During violent winter storms, waves taller than the length of six king-sized beds stacked end-to-end (40 feet) can meet the Columbia River as it makes its way out to the Pacific Ocean. This concentrated colliding of water makes crossing the bar incredibly dangerous, according to the Columbia River Maritime Museum. So precarious, in fact, that this channel had a nickname, “the graveyard of the Pacific,” at least until the U.S. government built critical infrastructure to reduce some of the risk.

  • PUBLICATION NOTICE: Post-Project Monitoring of a Navigation Solution in a Dynamic Coastal Environment, Smith Island, Maryland: Year One of Post-Project Monitoring

    Abstract: In 2018, jetties and a sill were constructed by the US Army Corps of Engineers (USACE) adjacent to the Sheep Pen Gut Federal Channel at Rhodes Point, Smith Island, Maryland. These navigation improvements were constructed under Section 107 of the Continuing Authorities Program. Material dredged for construction of the navigation structures and realignment of the channel were used to restore degraded marsh. Following construction and dredging, 1 year of post-project monitoring was performed to evaluate the performance of navigation improvements with respect to the prevention of shoaling within the Sheep Pen Gut channel, shoreline changes, and impacts to submerged aquatic vegetation (SAV). Given the short period of record after the completion of the navigation improvements, it was difficult to draw conclusions regarding stability of the channel, structures, and shoreline. Therefore, this report documents methodology and baseline conditions for monitoring, except for SAV, which was found to be potentially impacted by construction. A second year of monitoring was funded by the USACE Regional Sediment Management Program for fiscal year 2020. Findings can be used to inform plan formulation and design for USACE navigation projects by illuminating considerations for placement of structures to prevent shoaling and by informing SAV management decisions.

  • Corps announces Corpus Christi Ship Channel jetty repairs to begin mid-June

    CORPUS CHRISTI, Texas – The Galveston District of the U.S. Army Corps of Engineers today announced the start of repairs to the entrance jetty of the Corpus Christi Ship Channel located at Aransas Pass. Actual work on the project is scheduled to begin in mid-June.

  • Repairing the South Jetty

    When something hasn’t needed repair in more than 130 years, you know it was built strong.The

  • Road and areas at Cape Disappointment State Park will remain closed to the public due to North Jetty construction activity

    Public access to the North Jetty, North Jetty Road and nearby parking lots at Cape Disappointment State Park will remain closed through the winter, until Nov. 19, 2019.

  • Officials mark completion of jetties on historic Smith Island during ceremony

    Baltimore District in coordination with the Maryland Department of Natural Resources; Somerset County; Maryland Department of Housing and Community Development; U.S. Department of Housing and Urban Development; Smith Island United, and other partners, marked the completion of two major milestones as part of the Army Corps navigation improvement project at Rhodes Point during a ceremony at the Somers Cove Marina in Crisfield June 21.

  • Road and area closures at Cape Disappointment State Park

    The U.S. Army Corps of Engineers will begin rehabilitating the Mouth of the Columbia River’s North Jetty in February, impacting public access to parts of Cape Disappointment State Park.