Marine Tydings Memorial Bridge Foundation And Subsurface Repairs > Projects > Tydings Memorial Bridge Foundation And Subsurface Repairs KEY CHALLENGES & PROJECT DETAILS Project required repairs to the underwater foundation of the bridge: Rehabilitation on bridge footings and sub-footings of 10 in-river piers In-river excavation and cofferdam construction Reinforced tremie concrete placement Structural concrete repairs of the pier footings and columns. CHALLENGES OVERCOME: Remoteness of the site Working in water up to 65 feet deep Crews, equipment and materials transported by boat and barge up to 2 miles from shore Massive fluctuations in river elevation Flooding and hurricane weather conditions Extreme winter weather conditions, with heavy ice packs and high winds Erratic rock elevation Manmade obstructions encountered during excavation Environmental restrictions on work that would disturb the river bottom during the hibernation period of the map turtle Environmental restrictions in place to protect and promote growth of underwater vegetation PROJECT DETAILS: Project Owner: Maryland Transportation Authority Location: I-95 over the Susquehanna River Harford County, Maryland PROJECT AWARDS INCLUDE: 2014 MdQI Award of Excellence -Gold Partnering Award 2014 MdQI Award of Excellence -MTA Modal Project Over $5 Million 2014 Pile Driver Contractors Association (PDCA) Project of the Year -Over $5 Million 2014 American Concrete Institute (ACI) Maryland Chapter Excellence in Concrete Award Close
KEY CHALLENGES & PROJECT DETAILS Project required repairs to the underwater foundation of the bridge: Rehabilitation on bridge footings and sub-footings of 10 in-river piers In-river excavation and cofferdam construction Reinforced tremie concrete placement Structural concrete repairs of the pier footings and columns. CHALLENGES OVERCOME: Remoteness of the site Working in water up to 65 feet deep Crews, equipment and materials transported by boat and barge up to 2 miles from shore Massive fluctuations in river elevation Flooding and hurricane weather conditions Extreme winter weather conditions, with heavy ice packs and high winds Erratic rock elevation Manmade obstructions encountered during excavation Environmental restrictions on work that would disturb the river bottom during the hibernation period of the map turtle Environmental restrictions in place to protect and promote growth of underwater vegetation PROJECT DETAILS: Project Owner: Maryland Transportation Authority Location: I-95 over the Susquehanna River Harford County, Maryland PROJECT AWARDS INCLUDE: 2014 MdQI Award of Excellence -Gold Partnering Award 2014 MdQI Award of Excellence -MTA Modal Project Over $5 Million 2014 Pile Driver Contractors Association (PDCA) Project of the Year -Over $5 Million 2014 American Concrete Institute (ACI) Maryland Chapter Excellence in Concrete Award Close