Loren Data's SAM Daily™

FBO DAILY ISSUE OF JUNE 23, 2002 FBO #0203
SOURCES SOUGHT

Y -- SPILLWAY GATE AT WESTERN C-11, PHASE 2 SPILLWAY 381, BROWARD COUNTY, FLORIDA.

Notice Date

6/21/2002
 

Notice Type

Sources Sought
 

Contracting Office

U.S. Army Engineer District, Jacksonville - Civil Works, P.O. Box 4970, Jacksonville, FL 32232-0019
 

ZIP Code

32232-0019
 

Solicitation Number

DACW17-02-Z-0004
 

Response Due

7/8/2002
 

Archive Date

8/7/2002
 

Point of Contact

Barbara Byam, 904-232-1120
 

E-Mail Address

Email your questions to U.S. Army Engineer District, Jacksonville - Civil Works
(barbara.v.byam@usace.army.mil)
 

Small Business Set-Aside

N/A
 

Description

NA THIS IS A REQUEST FOR INFORMATION ONLY. DO NOT REGISTER. THIS IS NOT A SOLICITATION ANNOUNCEMENT FOR PROPOSALS AND NO CONTRACT WILL BE AWARDED FROM THIS SOLICITATION. NO REIMBURSEMENT WILL BE MADE FOR ANY COST ASSOCIATED WITH PROVIDING INFORMATION IN RESPONSE TO THIS ANNOUNCEMENT AND ANY FOLLOW-UP INFORMATION R EQUESTS. The Jacksonville District of the US Army Corps of Engineers is planning a procurement for a spillway gate at Western C-11, Phase 2 Spillway 381, Broward County, Florida. The project goal of the structure when it is closed to flow is to separate the Wester n C-11 canal and act as a divide to facilitate seepage collection and return seepage to the natural area. The canal reach to the west is used to collect and return seepage from the natural area. The canal reach to the east is urbanized. During rainfall events in the basin the structure is operated to allow flow from east to west. Under this condition the structure head loss or head drop should be minimized (no more than .04 feet) in order to avoid adverse impacts to the urbanized areas of the structure. At this time the Government intends to specify a gate manufactured by Obermeyer. The Obermeyer gate has the following desirable characteristics: ? Accurate water level control even under power failure conditions. ? Modular design that simplifies installation and maintenance. ? Unlike steel spillway gates, gates are supported for their entire width by an inflatable air bladder, resulting in simple foundation requirements and a cost effective, efficient gate structure. ? Thin profile efficiently passes flood flows and debris. ? Unlike rubber dams, the steel gate panels overhang the air bladder in all positions, protecting the bladder from floating logs, debris, etc.. ? No intermediate piers are required. ? Spillway gates are less costly to maintain and cheaper to install than other alternatives. ? The Spillway gate also has the added benefits of discharging over the top of the gate verses through the bottom of the gate and virtually no risk of manatee mortality due to the gate and air bladder configuration. The purpose of this Request for Information (RFI) is to seek alternatives to the Obermeyer gate. Alternatives must satisfy the following criteria: a) Spillway gate design criteria: ? The spillway gates will fit in the spillway super structure that will have three 30 foot bays. The spillway structure will pass the design flow of 2880 cubic feet per second (cfs). ? The optimum design water surface elevation is 4.0 ft-NGVD. ? The structure invert elevation is ?10 ft-NGVD. ? Top of the gate in the no flow position shall be 5.5 ft-NGVD. ? Flow can be controlled in each of the three bays independent of each other. ? Each gated bay is required to be remotely controllable by the operators Supervisory Control And Data Acquisition (SCADA) system. This requirement is that the gate also comes with a control system that can be interfaced to a SCADA system. ? The allowable head drop through the structure at the design flow of 2880 cfs with a headwater surface elevation of 3.5 ft-NGVD shall not exceed 0.05 feet. ? Discharge of flow shall be over the top of the gate. ? The gate seals should be effective under the following head condition (4.5 ft-NGVD headwater with a 2.5 ft-NGVD tailwater). ? The gate seals should be effective under the following reverse head condition (0.0 ft-NGVD headwater with a 5.0 ft-NGVD tailwater). b) Gates unacceptable to the structure: Wicker gates are bottom hinged steel gates that are raised either manually or by use of hydraulically actuated piston. The use of a hydraulically actuated piston in the channel would be environmentally risky if a leak occurred which would cause hydraulic fluids to contaminate the canal. A manually operated wicker gate would be unacceptable, due to the manpower required to make gate changes. Inflatable dams were also considered for this structure but they have design drawbacks that are also unacceptable in this application. Inflatable dams require endwall with 45 degrees inclinations in order to get an acceptable seal to stop flow. This would require a larger structure. Also, under submerged flow conditi ons the inflatable dam is acceptable to flutter which causes the bladder to rip or destroy itself. Inflatable dams also have a tendency to sag in the middle thereby making it difficult to accurately control the crest elevation and flow over the crest. Th ese drawbacks along with higher cost make inflatable dams unacceptable at this structure. NOTE: THE INFORMATION SUBMITTED IN RESPONSE TO THE RFI MAY BE USED IN THE GOVERNMENT?S SPECIFICATIONS AND MADE AVAILABLE TO ALL COMPETITORS. DO NOT SUBMIT PROPRIETARY AND/OR BUSINESS CONFIDENTIAL INFORMATION. Please mail or fax your written responses to this RFI to the following address no later than July 8, 2002: (FAX NUMBER 904-232-2748), USAED Jacksonville District, ATTN: CESAJ-CT-E (Barbara V. Byam), 400 West Bay Street, Jacksonville, Florida 32202-4412. Responses can also be submitted electronic ally to barbara.v.byam@usace.army.mil
 

Place of Performance

Address: U.S. Army Engineer District, Jacksonville - Civil Works P.O. Box 4970, Jacksonville FL

Zip Code: 32232-0019

Country: US
 

Record

SN00097847-W 20020623/020621213236 (fbodaily.com)
 

Source

FedBizOpps.gov Link to This Notice
(may not be valid after Archive Date)

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