SOURCES SOUGHT
Z -- Sims Bayou, Houston, Texas, Channel Rectification, Bathurst Drive to State Highway 288, in Harris County, Texas.
- Notice Date
- 7/16/2004
- Notice Type
- Sources Sought
- NAICS
- 237990
— Other Heavy and Civil Engineering Construction
- Contracting Office
- US Army Corps of Engineers, Galveston, 2000 Fort Point Road, PO Box 1229, Galveston, TX 77553-1229
- ZIP Code
- 77553-1229
- Solicitation Number
- W912HY-04-S-0008
- Response Due
- 7/30/2004
- Archive Date
- 9/28/2004
- Point of Contact
- Angela.Zahid, 409-766-3849
- E-Mail Address
-
Email your questions to US Army Corps of Engineers, Galveston
(angela.zahid@usace.army.mil)
- Small Business Set-Aside
- N/A
- Description
- W912HY-O4-S-0008, Subject: Sims Bayou, Houston, Texas, Channel Rectification, Bathurst Drive to State Highway 288 in Harris County, Texas. The U.S. Army Corps of Engineers, Galveston District has a requirement for the above subject. This is not a Solicitation Announcement and not a Request for Proposal and does not obligate the Government to any contract award. The purpose of this sources sought announcement is to determine interest and capability of potential 8(a) and HubZone Small Business concerns to perform as prime contractors for this project. Responses to this sources sought announcement will be used by t he Government to make an appropriate procurement decision. Note: The American Industry Classification System Code is 237990. The concern will perform at least 15 percent of the cost of the contract, not including the cost of materials, with its own employees. (FAR 52.219-14(3) It is requested that you review the attached Scope of Work. If you can meet all of the requirements for this project, please respond by mail to U.S. Army Corps of Engineers, ATTN: Angela Zahid, P.O. Box 1229, Galveston, Texas 77553-1229, no later than 30 July, 2004, 4:00 pm. The estimated cost range is between $25,000,000.00 and $100,000,000.00. The following information is requested: 1. Name of Firm w/address, phone, fax, e-mail address, and point of contact. 2. State if your company is an 8(a) or HubZone Small Business concern. 3. State experience/references with this particular type of work. 4. State whether your firm can provide a Bid Bond (20% of total bid amount); Performance and Payment Bond (100%of the contract amount). 5. Please indicate whether your firm will submit a bid for this project, if this project is set-aside for 8(a) or HubZone Small Business concerns. Firms responding to this sources sought who fail to provide ALL of the required information will not be used to help the Government make the acquisition decision, which is the intent of this sources sought announcement. Please reference Sources Sought W912HY-04-S-0008, Sims Bayou, Houston, Texas, Channel Rectification, Bathurst Drive to State Highway 288 in Harris County, Texas. If you have any questions, please contact Angela Zahid, at (409) 766-3849. For technical questions, please contact Ms. Lori Thomas, at (409) 766-6324. SCOPE OF WORK, SIMS BAYOU REACH 7. 1.0. General. The work consists of channel excavation, backfill, storm drains, articulated concrete blocks, metal and PVC sheet piling, relief wells, piezometers, sub-drainage system, storm drains, roads, fencing, hike and bike trail bridge, painting, and landscaping. This construction project includes dewatering and control of water from artesian and surface flows, managing unstable slopes due to silt deposits and slickensided soils, constructing Articulating Concrete Block (ACB) lined channels, installing steel sheetp ile, and building a pedestrian bridge. The contractor will be required to coordinate with the local sponsor, as the local sponsor is replacing 3 highway bridges throughout this reach concurrently with construction on the bayou. The contractor will also b e required to minimize site erosion and comply with all governing environmental regulations. 2.0. Geotechnical Considerations. Sims Bayou is located on the Texas Coastal Plain and flows over the Beaumont clay formation from its headwaters to its junction with Buffalo Bayou. The geology of the region consists of clay, silt, sand and gravel from upstream sources spread over the reg ion as the courses of the streams shifted laterally over the nearly featureless coastal plain. This geologic formation has created some significant problems for construction along Sims Bayou: artesian uplift, heavy storm runoff, silt deposits, and slicke nsided clay. 2.1 Artesian and Surface Water. Significant artesian uplift, accompanied by si gnificant volumes of water, exists beneath Sims Bayou and has been the cause of sloughing of channel slopes on previous channelization work. This artesian uplift poses problems during dewatering for channel excavation and for the excavation itself. Very clean, poorly graded sand (SP) has been identified beneath the proposed channel invert. This sand ranges in thickness to about 20 feet. The artesian uplift reaches a few feet above the top of the proposed maintenance berm. Relief wells are required to r elieve uplift for the finished channel and for dewatering and control of water during construction. The dewatering and control of water features for the construction of Sims Bayou Channel Rectification are among the most complex ever used on a Corps project and requires the ability to effectively control water through the combination of diversion channel s and pumps. This complexity is due partially to heavy rains. Annual mean flow rates are less than 100 cfs, but urbanized hydrologic conditions result in spiked storm runoff events, which often exceed the capacity of practical diversion channels. Peak f low rates recorded during Tropical Storm Allison in June 2001 were 9,030 cfs at the USGS gage at Hiram Clarke and 25,800 cfs at the USGS gage at Telephone Road. 2.2 Soil Conditions. Isolated deposits of silt have been identified at various locations along Sims Bayou. This silt can become very unstable when exposed along an excavated channel slope. Slope failures at these locations are possible. Considerable care must be taken durin g construction to properly identify silt deposits in order to effectively install the sand filter and geotextile over the silt to prevent piping and loss of the silt. The Beaumont clay is riddled with slickensides, which are smoothed surfaces along planes of weakness. These slickensides are built-in failure planes for slope slides and sloughing. This slickensided nature of the in situ clays can also cause concern duri ng channel excavation. 3.0. Structural Considerations. The structural construction consists of reinforced concrete channel linings, concrete lateral linings, steel sheetpiling, reinforced concrete lined fishpond areas, a pedestrian bridge and foundation abutments, and a reinforced concrete junction box and lin ing for a realignment of an 84-inch CMP pipe entering the channel. A pilot channel is to be constructed within an (ACB) channel. ACB termination structures will be placed upstream and downstream of the Almeda Bridge to allow an optional bid item for the relocation of the Almeda Bridge. 3.1 Cutoff Walls. A steel sheetpile (SSP) cutoff wall with 200 feet of concrete lining downstream and 200 feet of riprap upstream is located at the upstream end of the project. The steel sheetpiling is approximately 6100 SF of large size PZ sections ranging in lengths from 15 to 40 feet with embedment depths of up to approximately 27 feet. A diversion channel must be maintained through the wall during construction. The 2,150 CY concrete lining at this cutoff wall will have a 4-foot deep exterior grade beam around the perim eter of the slab. A 10-foot long scour cutoff SSP wall is constructed at the juncture of the slab and the ACB for all liner termination. An existing SSP cutoff wall is located at the downstream end of this project. There is an option in this project to remove this wall. Six laterals require construction of 10-foot deep cutoff walls in conjunction with the ACB linings at the upstream ends of the lateral channels 3.2 Highway, Railroad and Pedestrian Bridges. Construction of 10-inch concrete lined channel below existing highway and railroad bridges in multiple locations is required. SSP cutoff walls will be used at the upstream and downstream ends of the channel lining. The contractor must be able to construc t suitable construction joint locations to prohibit slab cracking. All in channel slabs have a subdrainage system consisti ng of weepholes, PVC pipe, sand filter layers, filter fabric, and geotextile linings. A 55-foot span prefabricated metal bridge pedestrian bridge and foundation will be constructed to span a lateral. The foundation for this pedestrian bridge is a spread footing and is 8 feet wide to meet requirements similar to the remainder of the trails on the Sims Bayou. Procurement and installation of the bridge will be part of the contract. 3.3 In-channel Concrete Ponds. The project includes the construction of four in channel concrete lined pond areas requiring 7,200 CY of concrete. The slabs for these ponds are 24 inches thick in the central portions. Ten-foot deep SSP scour cutoff walls will be installed at the concre te/ACB juncture at the upstream and downstream end of these ponds. The contractor must have the ability to control shrinkage and temperature during the placement of these slabs. 3.3 Relocation of 84-inch Diameter CMP. An existing 84-inch diameter CMP discharges into the Sims channel from a sewer treatment plant. Approximately 122 lineal feet of this pipe will be rerouted to enter the channel below the maintenance berm elevation. To accommodate this, a juncture box has been designed which consists of 14-inch, cast in place, reinforced concrete walls. The construction will require a diversion channel or pipe to maintain flows (maximum of 80 million gallons per day) during the construction. The contractor shall design the excavation and diversion piping for diversion. The excavation will be over 20 feet deep and requires an experienced contractor in deep excavations to accomplish the diversion and construction of this pipe. 4.0. Laterals and Articulated Concrete Blocks (ACBs). The channel and its tributaries will be protected by the installation of ACBs, which are placed by hand and then strung together by cables. This type of installation requires a great deal of skill and knowledge in order that the installation progresses in a manner that minimizes the exposure of unprotected erosive soils. The ACBs are installed in areas that are subject to the sudden inundation of flood waters, which requires experience in phasing construction activities appropriately. The ACBs are laid u pon a geotextile fabric to prevent the loss of material beneath the blocks but will yet function to relieve groundwater pressure. In order for the Contractor to complete the work within the specified construction time the Contractor must effectively sched ule and progress block placement in conjunction with excavation, dewatering, sand bed placement, geotextile and storm drain pipe installation. 4.1 Storm Drainage Structures. The work involves the excavation of backslope ditches and the construction of numerous drainage structures to handle sheet flow along the bayou. The construction of the ditches and structures will be done in adverse working conditions where vehicle and eq uipment access is not easily accessible and wet conditions requiring pumping are a frequent occurrence. 4.2 Environmental Controls. The Contractor shall institute environmental controls to minimize the lost of soil which would otherwise affect water quality downstream of the work area. The Contractor will be required to phase construction and install temporary controls to minimize ero sion, sediment run-off, and dust. All State, Federal and local environmental regulations shall be adhered too. A detailed pollution prevention plan shall be developed and executed to effectively maintain pollution prevention measures both on side and at access points. The Contractor will be required to haul excavated material on City of Houston public streets in a manner that prevents or minimizes damage to the streets. Damages to the streets will be the responsibility of the Contractor. 4.3 Utilities. The excavation of the channel will be near or at existing utilities that cross the bayou and will require care and coordination with utility owners to ensure uninterrupted service. The excavation in these areas may require temporary shoring to protect Contractor personnel. 4.4 Additional Site Work. Additional site work along the bayou involves the placement of riprap, the establishment and maintenance of turfing, painting of steel sheet piling and the demolition and disposal of debris. 5.0. Contractor and Corps Partnering. The Corps of Engineers has come to rely more and more on Contractors during construction to provide inspections of on-going work, to identify potential problems in the plans and specifications for the work, and in technical/engineering advice and guidance as construction progresses. This is essentially the partnering clause of the specifications. The contractor on complex jobs, such as Sims Bayou, must have a highly diverse and highly experienced work force. Certain specifications, i.e. pressure relief w ells and piezometers, specifically require highly experienced and knowledgeable experts on the site.
- Place of Performance
- Address: US Army Corps of Engineers, Galveston 2000 Fort Point Road, PO Box 1229 Galveston TX
- Zip Code: 77553-1229
- Country: US
- Zip Code: 77553-1229
- Record
- SN00625419-W 20040718/040716212308 (fbodaily.com)
- Source
-
FedBizOpps.gov Link to This Notice
(may not be valid after Archive Date)
| FSG Index | This Issue's Index | Today's FBO Daily Index Page |