SEABROOK GATE CONSTRUCTION
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| Location: | Orleans County, Louisiana | Phase: | Post-Bid Phase |
| Building Type: | Bridge & Culvert | Stage: | Post Bid Results Pending |
| Work Type: | Alteration | Bid Date: | 2009-09-09 |
| Last Updated: | 2009-09-11 | ||
Project Description
Fencing The project is critical to the Hurricane Storm Damage Risk Reduction System (HSDRRS) and must be completed by June 1, 2011. The proposed project will be an essential component of the IHNC Hurricane Protection Plan. The proposed floodgate will be a structure with a moveable gate of approximately 3500 sf, with the top of structure at +18.0 and a maximum sill elevation of -16.0 that will provide safe navigation for marine vessels. The structure will tie back to the existing floodwalls on the East and West side of the IHNC Canal. The project site is located on the south side of Lake Pontchartrain, at the northern end of the IHNC. The IHNC is flanked on both sides with an existing levee/floodwall protection system, varying in height from elevation +13.5 feet to +18 feet. At the southern end of the IHNC near the Mississippi River is an existing navigation lock, planned to be replaced by a new 110-foot-wide by 1,200-foot structure currently under design and construction. At the northern end of the IHNC are the Senator Ted Hickey Bridge, a dual bascule bridge, and the Seabrook Railroad Bridge, a single bascule bridge opening. These bridges are equipped with lift spans to permit passage of taller waterborne vessels. The majority of the protection along the federal system is floodwall. The western floodwalls tie into a levee on the south side of the railroad, with several floodgates located along the existing federal line of protection, including a roadway gate for a lower access road and a railroad gate on the west end of the channel. There is a scour hole located in the northern part of the IHNC south of the railroad. This scour hole spans the channel with a width of approximately 350 feet. It is approximately 1,050 feet long and 86 feet deep.
Project Value
| Estimated Value: | $175,000,000 |
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Project Participants
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