Protecting People, Property and Our Way of Life

Thibodaux-Lockport-Bayou Blue

The boundary is the area enclosed by a polygon beginning at the intersection of Bayou Lafourche and Ridgefield Road in Thibodaux.  The boundary line then heads south along Ridgefield Road to the intersection of Lawrence Avenue. From that intersection the boundary heads east along Lawrence Avenue and follows the top of the Acadia Ridge (old railroad corridor) to the east across Canal Blvd turning southeast then south as if follows the Acadia Ridge to the point where the Acadia Ridge intersects with the Parish Line. From that point, the boundary travels generally southeast along the Parish line to the point where the western Parish line intersects the Gulf Intracostal Waterway (GIWW). The boundary runs eastward along the GIWW north bank to the intersection of the GIWW with the Company Canal. The boundary then travels generally northwestward along the Company Canal to the intersection of the Company Canal and Bayou Lafourche in Lockport. At this point the boundary meanders generally north and west along the west bank of Bayou Lafourche back to the point of beginning at the intersection of Bayou Lafourche and Ridgefield Road in Thibodaux. The 2010 Census shows a population of 30,766 in this Project Area which represents a 21% increase in population over the last 20 years with a 12% increase in the last 10 years.

 

28 Arpent, 40 Arpent, Dugas & Hollywood Canals: This project included maintenance clearing and dredging a final section of the 40 Arpent Canal south of the Lefort By-pass Road in the Lafourche Crossing Area to the intersection of the 40 Arpent Canal with Theriot’s Canal near Four Point Heights Subdivision. The initial clearing and dredging work was completed for this section in 2008. The project area is now in a maintenance mode in need of right of way (Spoil Bank and Berm) as well as an aquatic vegetative control. The NLLD has an ongoing vegetation control program throughout the District. Maintenance dredging work was completed in the Hollywood Canal between the Bayou Blue By-Pass Road and the Company Canal south of Lockport in May of 2010. The Dugas Canal from the 28 Arpent to the 40 Arpent Canal and the 28 Arpent Canal from the Dugas Canal to where the 40 Arpent Canal re-joins the 28 Arpent Canal have been maintenance dredged and the Right Of Way on one bank has been cleared as of 3/2011.

The non-cleared bank of the 28 Arpent Canal from the Dugas Canal to the point where the 40 Arpent Canal re-joins the 28 Arpent Canal needs to have a maintenance Right of Way acquired and this new Right of Way needs to be cleared of vegetation and maintained. The NLCLDD has assigned Leonard Chauvin, Inc. as an Engineer to this project element and acquisition of Right of Ways and the clearance of encroachments are being pursued currently.

The non-cleared bank of the 40 Arpent Canal from Hwy 182 to the Butch Hill Pump Station needs to have a maintenance Right of Way acquired and this new Right of Way needs to be cleared of vegetation and maintained. The canal can then be maintenance dredged.

The non-cleared bank of the 40 Arpent Canal from Hwy 182 to the Theriot Canal needs to have a maintenance Right of Way acquired and this new Right of Way needs to be cleared of vegetation and maintained. The canal can then be maintenance dredged.

Project COA 6200.50Z, Estimated Cost: $1,500,000.00

Thibodaux – Lockport – Bayou Blue Storm Water Flood Protection: This massive project seeks to utilize the natural ridges of Bayou Lafourche and Bayou Blue, along with improvements to existing levees near Lockport and the Raceland Prairie area, as protection from storm and backwater flooding that can occur from the southern end of the project area. An open system, to mimic the traditional natural drainage of the watershed’s eco-system, utilizing levee installations and improvements, required pump stations, and water control structures, is planned as a solution to the problem. This project area serves nearly 31,000 residents including parts of the cities of Thibodaux (including Nicholls State University) and Lockport as well as, the communities of Raceland, Matthews and Bayou Blue. Generally, the project includes the following work items (elements):

E1) Construct a levee from LA1 in Lockport along the north side of the Company Canal to the 40 Arpent Canal. Duplantis Design Group was the Engineer for this Project. The contract for this element has been awarded and construction for most of the project has been completed. (Total project amount funded by NLLD to date is $1,107,819.06). The project has been modified to omit a section of the planned levee where undocumented fill material had been placed along the planned levee alignment. This section of levee will have to be completed as an additional independent contract, once the material issue is resolved between the individuals who placed this material on the Parish Property and the Parish. The main portion of the levee is complete.

Project COA 6200.51Z, Initial Project Completion Cost Remaining: $190,533.75
Estimated cost to complete skipped section: $150,000.00

E2) Improve the 40 Arpent Canal Levee from the Coastal Pump Station at the Company Canal in Lockport to the Butch Hill Pump Station. NLLD has hired Leonard Chauvin, Inc. as Engineers to complete substantial survey, design, and construction estimates for this project as would be required to seek a permit from the USACOE for the project. Planned improvements would increase the current storm water elevation from an average of +4 feet to +8 feet. In general, the project seeks to push the location of the levee back (away from Bayou Lafourche) while widening the existing 40 Arpent Canal to the front (towards Bayou Lafourche) in order to acquire borrow material for levee construction. At this point, we are preparing the Permit Application; the NLCLDD has notified the approximately 100 landowners of the overall scope of this project prior to filing the Permit Application as to avoid confusion and errant speculation about the project. At this time, the estimate has been completed and the project is ready to move forward pending available funding.
Project COA 6200.52Z, Estimated Cost: $1,649,738.00

E3) Improve the levee from the Butch Hill Pump Station to the existing Pump Station in Bayou Folse. Leonard Chauvin, Inc. is the Design Engineer for this project. The contract for this element, along with element 5, was awarded to Dean Equipment and construction has been completed.
Project COA 6200.53Z, Estimated Cost: with Element 5

E4) Construct a deployable canal closure structure at Bayou Folse just beyond the existing Pump Station.
Project COA 6200.54Z, Estimated Cost: $6,375,000.00

E5) Improve the levees along Bayou Folse, the Commotion Canal and Bayou Dumar from the new Water Control Structure in Bayou Folse to a new Pump Station / Water Control on Bayou Dumar near the intersection of Bayou Dumar and Lake Fields. The contract for this element, along with element 3 (Dean Equipment) has been awarded and construction has been completed. (Total project amount funded by NLLD to date is $2,360,812.42)
E5 Project COA 6200.55Z,
Estimated remaining Cost E3 & E5: $330,110.19

E6) Install a new Pump Station / Canal Closure across Bayou Dumar just beyond the intersection of Bayou Dumar and Lake Fields.
Project COA 6200.56Z, Estimated Cost: $8,108,000.00

E7) Construct a new levee from the new Bayou Dumar Pump Station/ Canal Closure along Bayou Dumar and Candies Property Canal to the south west corner of the Candies Property.
Project COA 6200.57Z, Estimated Cost: with Element 8

E8) Construct a new levee with a gated opening from the SW corner of the Candies Property along the existing spoil bank along the Hollywood Canal near Prospect Extension.
E8 Project COA 6200.58Z, Estimated Cost E7 & E8: $5,100,000.00

E9) Construct a Deployable Canal Closure / Pump Station structure on the Hollywood Canal just east of Prospect Extension.
Project COA 6200.59Z, Estimated Cost: with Element 10

E10) Construct a new levee from the Deployable Canal Closure / Pump Station on the Hollywood Canal along Prospect Extension to the Bayou Blue Ridge.
Project COA 6200.74Z, Estimated Cost E9 & E10: $6,183,000.00

We have completed a detailed hydrology study for this project area. The NLLD has authorized Engineers to precede with elements 1, 2, 3 and 5 as described above. We continue to consider alternative alignments and look for funding sources.

Bayou Blue – Hollywood Interim Project: To date, individual elements 1, 2, 3 and 5 of the Thibodaux – Lockport Bayou Blue Storm Water Protection Project have been selected and advanced because they have independent utility and can provide measurable benefits to flood protection in the area prior to completion of the entire project. Similarly, the NLLD has looked for ways to provide additional storm water protection prior to the completion of the entire project. The Hollywood Interim Project is one such example.

This large project will prevent high storm water elevations in the Hollywood Canal from backing into the subdivisions on the Lafourche side of LA316 from the intersection of LA 316 and Prospect Extension northwest to the intersection of the Bayou Blue By-Pass Road and the Hollywood Canal. Land along the Burma Road and the land west of the Grand Coteau Ridge will also be protected as will subdivisions that cross the Hollywood Canal to the east (Over 1800 residences numerous businesses and nearly 7000 citizens.) Provided for project impact area reference, a partial list of the major streets impacted by this project include Sharnell Dr., Adams St., Silver St., Division St., Dewey St., Main St., Mazerac St., Linda St., Marcel St., Hwy 182, Brien St . Ozia Skyline Dr., Onterio St., Evangeline Hgts., Meadowland Dr., Roberts Dr., Bayou Bend Dr., Oakview Dr., Canal Ln., Hummingbird Dr., Mary Beth Dr., Terre-Haute Pl., Louise Ln., Hidden Acres St., Verna St., Adda Rd., Ida St., Melanie Ln., Pearlye Blvd., Buccaneer Rd., Amber Ln., Maxine Blvd., Jennifer St., Julie St., Blue St., Cajun St., US 90 Service Rd., Lydia St., MIA Dr., Kimino St., Blueridge Dr. Baylis Dr., Cypress Ct., Aselane St., Ponderosa Ln., and the Bayou Blue Bypass Road. Please keep in mind that in addition to the streets named above, those streets not named which are adjacent to or near those listed will also be protected by this project. The project scope includes a partial construction of Element 9 and completion of element 10, plus the construction of a new deployable closure structure in the Hollywood Canal just downstream of the Bobcat Lane Pump Station. The project use the natural ridges of Bayou Blue and Grand Coteau Ridge to provide limited flood protection from storm water backing up into this portion of the basin. The system would remain normally open allowing traditional gravity drainage and hydrologic interchange of the entire area until threatened by rising storm water at which point the Hollywood Canal closure would be deployed and Pumping would begin to remove any rain water caused by the Storm event. The NLLD is working to engage and Engineering firm for preliminary design and development of this project.
Project COA 6200.66Z, Estimated Cost: 4,543,100.00

Thoroughbred / Supercharge: This 170 acre forced drainage system in the Lafourche Crossing Community protects 162 residences a few businesses, the NSU Farm and other infrastructure. The system has approximately 10,073 feet of ring levees providing backwater flooding protection. Forced drainage of the area is accomplished with a single pump station with 1-24” and 1-30” natural gas fueled engine driven pumps. In intermittent locations, the ring levees are insufficient in height and profile. Proposed improvements would include re-capping and re-shaping portions of the ring levee system, clearing and widening and improvements to internal drainage channels / culverts and making improvements at the existing pump station.
Project COA 6200.60Z, Estimated Cost: $701,000.00

Bayou Blue By-Pass & Bobcat Lane: This 265 acre forced drainage system in the area between the Burma Rd and the Hollywood Canal on both sides of the Bayou Blue By-Pass Rd and Bobcat Ln protects 80 residences and other infrastructure. The system has approximately 6,070 feet of ring levees providing backwater flooding protection. Forced drainage of the area is accomplished with a two pump stations which are operated separately; but, can be interconnected through a gated culvert. The Bayou Blue By-Pass Pump Station has 1-16” electric motor driven pump. The Bobcat Ln Pump Station has 1-36” diesel fueled engine driven pumps. Overall, the ring levees are sufficient in height but are poor in profile causing stability issues along long stretches of the levee system. Hurricane Isaac did not top the levee system; but, it was threatened in several locations. Proposed improvements would include:
Re-capping and re-shaping the entire ring levee,
Clearing and widening and improvements to internal drainage channels / culverts
Making improvements at the existing pump stations

The NLLD will be engaging an Engineer to develop the scope for this project.

Project COA 6200.61Z, Estimated Cost: $1,007,050.00

Four Point Heights Subdivision: This 5.69 acre forced drainage system at the end of Four Point Height Subdivision protects 11 residences. The system has approximately 2,200 feet of ring levees providing backwater flooding protection. Forced drainage of the area is accomplished with a single pump station with 1-12” diesel fueled engine driven pump. This project includes maintaining the various existing backwater flood protection levees and improvements to the pump.

Project COA 6200.62Z, Estimated cost $53,000.00

West Theriot Canal Maintenance Dredging: This project includes maintenance dredging of the West Theriot Canal from Bayou Lafourche to Bayou Folse. The banks of this project area have been cleared about 3 years ago and are now in a maintenance mode in need of right of way (Spoil Bank and Berm) as well as an aquatic vegetative control.

Project COA 6200.63Z, Estimated Cost $58,000.00

US Highway 90 at Bayou Dumar and Bayou Folse: A long time seepage boil adjacent to US90 at Bayou Dumar worsened during TS Lee. Working with the State CPRA and DOTD a permanent improvement using sheet piles donated by the St. Mary’s Levee District has greatly improved levee stability in these areas. Previously, an emergency action was taken just after Hurricane Ike and before Hurricane Gustav (2008) at US 90 and Bayou Folse on both sides of the Bayou. The temporary components of this project need to be replaced in favor of a permanent solution. The NLLD will be engaging an Engineer to develop the scope for this project.
Project COA 6200.65Z, Estimated Cost: $625,000.00

St. Charles By-Pass Road Backwater Flood Prevention Project: This broadly defined project intends to address occasional backwater flooding that occurs as high water levels in the 40Arpent Canal back-up into this community. Specific element scopes of work will have to be developed. Generally, it is believed that the project would involve a ring levee system and a pump or temporary pump location. The NLLD is working to engage and engineering firm for the preliminary design and development of this project.
Project COA 6200.67Z, Estimated Cost: $610,000.00

Lake Long Drive: The gravity drainage system along Lake Long Drive allows high water levels in the GIWW to back-up into the approximately 85 residences along this street. The area also has no significant backwater flood protection. Broadly scoped, this project would involve construction of some backwater flood protection levees and add a pump station to create a forced drainage system of approximately 83 acres. The NLLD will be engaging an Engineer to develop the scope for this project.
Project COA 6200.68Z, Estimated Cost: $2,769,000

Lefort By-Pass: This 116 acre forced drainage system in the Lafourche Crossing Community protects 46 residences several businesses and other infrastructure. The system currently has approximately 9,500 feet of ring levees providing backwater flooding protection. Forced drainage of the area is accomplished with a single pump station with 1-20” electric motor driven pump. Overall, the ring levees are sufficient in height in most areas but are poorly profiled and could be re-configured to reduce the overall length if the pump station is relocated.. Hurricane Isaac did not top the levee system; but, it was threatened in several locations and auxiliary pumps had to be brought in due to the loss of power in the area. Proposed improvements would include:
Re-capping as required and re-shaping and re-locating the entire ring levee,
Clearing and widening and improvements to internal drainage channels / culverts
Making improvements at the existing pump station
Project COA 6200.69Z, Estimated Cost: $687,000.00

Raceland Prairie, Drainage area 1 of 12: This 797 acre forced drainage system in the Raceland Prairie Community protects 102 residences several businesses and other infrastructure. The system has approximately 28,000 feet of ring levees total with about 13,500 feet of those providing backwater flooding protection. Forced drainage of the area is accomplished with a single pump station with 1-24” and 1-36” diesel fueled, engine driven pumps. Overall, the ring levees are sufficient in height in most areas but are poorly profiled and they would benefit from the obtaining and clearing of right of ways adjacent to the levees and drainage canals to prevent unwanted vegetation from falling in the canals or on the levees. The existing Pump Station is being replaced by the Parish with funding from a Gustav/Ike HUD CDBG grant to include 3-36” diesel fueled, engine driven pumps. The NLLD is monitoring this pump station replacement project and is providing technical support and review. Further proposed improvements would include:
Re-capping as required and re-shaping the entire ring levee, clearing and widening and providing improvements to internal drainage channels.
Project COA 6200.64Z, Estimated Cost: $562,000.00

Raceland Prairie, Drainage area 2 of 12: This 1,017 acre forced drainage system in the Raceland Prairie Community protects 85 residences several businesses and other infrastructure. The system has approximately 28,500 feet of ring levees total with about 17,500 feet of those providing backwater flooding protection. Approximately 6000 feet of the backwater Flood Protection Levees are currently being re-constructed as part of the Thibodaux- Lockport – Bayou Blue Flood Protection Project, Element 3. Forced drainage of the area is accomplished with a single pump station with 2-36” diesel fueled, engine driven pumps. Overall, the ring levees are sufficient in height in most areas but are poorly profiled and they would benefit from the obtaining and clearing of right of ways adjacent to the levees and drainage canals to prevent unwanted vegetation from falling in the canals or on the levees. The existing Pump Station is being replaced by the Parish with funding from a Gustav/Ike HUD CDBG grant to include 3-36” diesel fueled, engine driven pumps. The NLLD is monitoring this pump station replacement project and is providing technical support and review. Further proposed improvements would include:
Re-capping as required and re-shaping the entire ring levee, clearing and widening and providing improvements to internal drainage channels / culverts.
Project COA 6200.75Z, Estimated Cost: $916,000.00

Raceland Prairie, Drainage area 3 of 12: This 2,116 acre forced drainage system in the Raceland Prairie Community protects 170 residences several businesses and other infrastructure. The system has approximately 22,588 feet of ring levees providing backwater flooding protection. Approximately 7000 feet of the backwater Flood Protection Levees are currently being re-constructed as part of the Thibodaux- Lockport – Bayou Blue Flood Protection Project, Element 5. Forced drainage of the area is accomplished with a two pump stations. Each pump station has 1-36” diesel fueled, engine driven pump and 1-36” dual drive, diesel fueled engine or electric motor driven pump. Overall, the ring levees are sufficient in height in most areas but are poorly profiled and they would benefit from the obtaining and clearing of right of ways adjacent to the levees and drainage canals in some areas to prevent unwanted vegetation from falling in the canals or on the levees. Proposed improvements would include making improvements to both pump stations, re-capping as required and re-shaping the entire ring levee, clearing and widening and providing improvements to internal drainage channels / culverts.
Project COA 6200.76Z, Estimated Cost: $1,440,820.00

Cyprien / Butch Hill / Twin Oaks: This 6,248 acre forced drainage system runs from west and south of Raceland east to Mathews. The entire area protects approximately 2100 residences many businesses, a Hospital, two schools and other infrastructure. The entire system currently has approximately 50,700 feet of ring levees providing a combination of backwater flooding protection and drainage isolation. There are three distinct drainage areas within this system. However, they can all be interconnected with gated culverts if required. Information on the individual pump districts are provided below..

Cyprien Pump District: This 2,942 acre forced drainage system in the Raceland Community and areas west and south of Raceland protects residences several businesses and other infrastructure from Theriot Canal west of Raceland to Highway 182 in Raceland. The Drainage District borders the 40 Arpent Canal on the south except for the portion of the system west of the Cyprien Pump Station that boarders Bayou Folse. The system has approximately 24,301 feet of ring levees of which approximately 19,258 feet provide backwater flooding protection. Forced drainage of the area is accomplished with a single pump station with 1-30” and 1-48” diesel fueled, engine driven pumps and 1-36” electric motor driven pump. Overall, the ring levees are sufficient in height in most areas but are poorly profiled and they would benefit from the obtaining and clearing of right of ways adjacent to the levees and drainage canals to prevent unwanted vegetation from falling in the canals or on the levees. Proposed improvements would include rebuilding the Pump Station and making improvements to the pump station capacity, re-capping as required and re-shaping the entire ring levee, clearing and widening and providing improvements to internal drainage channels / culverts.
Project COA 6200.70Z, Estimated Cost: $3,839,265.00

Butch Hill Pump District: This 2,331 acre forced drainage system in the Raceland Community east and south of Raceland protects residences several businesses and other infrastructure from Highway 182 in Raceland to just east of Highway 90. The Drainage District borders the 40 Arpent Canal (Bayou Cut Off) on the south. The system has approximately 9,000 feet of drainage isolation levees. Forced drainage of the area is accomplished with a single pump station with 4-36” and 1-48” diesel fueled, engine driven pumps. Overall, the levees are sufficient in height in most areas but are poorly profiled and they would benefit from the obtaining and clearing of right of ways adjacent to the levees and drainage canals to prevent unwanted vegetation from falling in the canals or on the levees. Proposed improvements would include making improvements to the pump station capacity, re-capping as required and re-shaping the entire levee, clearing and widening and providing improvements to internal drainage channels / culverts.
Project COA 6200.71Z, Estimated Cost: $2,798,000.00

Twin Oaks Pump District: This 975 acre forced drainage system in the Raceland & Mathews Communities east and south of Raceland and Mathews protects residences several businesses and other infrastructure from just east of Highway 90 to just east of Acadia Drive on the east side of Ocshner St. Anne’s Hospital. The system has approximately 17,400 feet of ring levees of which approximately 7,200 feet provide backwater flooding protection. These 7,200 feet of levee is slated for improvement in the Thibodaux – Lockport – Bayou Blue Storm water Protection Project in Element 2. Forced drainage of the area is accomplished with a single pump station with 1-36” and 1-48” diesel fueled, engine driven pumps and 1-20” electric motor driven pump. Overall, the remaining levees are sufficient in height in most areas but are poorly profiled and they would benefit from the obtaining and clearing of right of ways adjacent to the levees and drainage canals to prevent unwanted vegetation from falling in the canals or on the levees. Proposed improvements would include making improvements to the pump station capacity, re-capping as required and re-shaping the entire levee, clearing and widening and providing improvements to internal drainage channels / culverts.
Project COA 6200.72, Estimated Cost: $1,327,400.00

Fantastic Acres Pump / Coastal Pump District: This 3,018 acre forced drainage system in the Raceland Prairie Community protects 1,500 residences many businesses and other infrastructure. The system has approximately 18,400 feet of ring levees providing backwater flooding protection and drainage isolation. Approximately 15,600 feet of the backwater Flood Protection Levees are currently being re-constructed as part of the Thibodaux- Lockport – Bayou Blue Flood Protection Project, Element 1& 2. Forced drainage of the area is accomplished with a two pump stations. The Fantastic Acres pump station has 2-36” and 1-48” diesel fueled, engine driven pump. The Coastal Pump station has 2-48” diesel fueled, engine driven pumps. Proposed improvements would include making improvements to both pump stations, re-capping as required and re-shaping the entire ring levee not parts of E1 & E2, clearing and widening and providing improvements to internal drainage channels / culverts.
Project COA 6200.73Z, Estimated Cost: $3,904,800.00

Thibodaux Drainage Culvert Projects: The following projects have been included at the request of the City of Thibodaux’s Department of Public Works. The NLLD  is  working with the City to coordinate the design and construction of the requested projects. The NLLD engaged Leonard Chauvin, Inc. for project design, development and management. The following three projects were handled in a single bid announcement. A contract was awarded to KCR Construction for $339,500.00 with completion expected in July of 2014.

Culvert Extensions West of Bayou Lane: This project will extend the culverts that pass under Bayou Lane towards the rear of the EDW New Gym and install appropriate catch basins.
Project COA 6200.77Z, Estimated Cost: $228,321.00

Culvert Installations along Bayou Lane: This project will install culverts and catch basins along Bayou Lane from the entrance of Peltier Park to the south west approximately 750 feet along the east side of Bayou Lane
Project COA 6200.78Z, Estimated Cost: $74,801.00

Culvert Installation within Peltier Park: This project will install culverts and catch basins approximately 400 feet near the Park’s Storage Barn.
Project COA 6200.79Z, Estimated Cost: $183,501.00

Other Non-Capital Projects in the Project Area:

Thibodaux, East 7th Street Drainage Study: The NLLD has hired Leonard Chauvin, Inc. to work with other local engineering firms and the City of Thibodaux to study the contributing drainage areas for the East 7th Street drainage system. The survey work for the study is nearly complete at this time. A draft report will be generated and once approved; the information will be distributed to all parties for future use and information.
Project COA 4200.002, Project No. SP-1026, Estimated Cost: $13,000.00