SPECIAL NOTICE
C -- Seminoe Dam Alkli-Silca Reaction (ASR) Analysis
- Notice Date
- 12/17/2013
- Notice Type
- Special Notice
- NAICS
- 541330
— Engineering Services
- Contracting Office
- Department of the Interior, Bureau of Reclamation, BOR - All Ofices, Denver Federal Center, Building 67, Room 380, Denver, Colorado, 80225, United States
- ZIP Code
- 80225
- Solicitation Number
- R14PS800001
- Archive Date
- 1/17/2014
- Point of Contact
- Judith Chamberlin, Phone: (303) 445-2606
- E-Mail Address
-
jchamberlin@usbr.gov
(jchamberlin@usbr.gov)
- Small Business Set-Aside
- N/A
- Description
- The Bureau of Reclamation, Acquisition Operations Branch, Denver, Colorado, intends to award on a sole-source basis to Hatch Acres Corporation, 100 Sylvan Parkway, Suite 200, Buffalo, NY 14228. This analysis and modeling requirement is to update the Seminoe Dam structural analysis model utilizing GROW3D software for static and seismic loadings in order to understand the current and future state of the stresses in the dam, given the continuation of alkali-silica reaction (ASR) since the last analysis. Seminoe Dam is a concrete arch dam located on the North Platte River about 31 miles northeast of Rawlings, Wyoming. This dam was completed in 1939 with a structural height of 295 feet, a hydraulic height of 206 feet, a crest length of 530 feet at elevation 6361.0 and a total concrete volume of 210,000 yd3. The reservoir, containing over 1,000,000 acre-feet at elevation 6357 (top of active conservation) provides water storage for irrigation, hydroelectric power generation, and recreation. Seminoe Dam is experiencing concrete expansion, cracking and deterioration due to ASR and freeze-thaw damage. Alkali-aggregate reaction (AAR) is a general term for reactions in concrete which occur between certain types of aggregate and the alkalis in the cement which forms a silica gel or carbonate reaction products. ASR is the specific chemical reaction between the alkalis in Portland cement and silica or silicates in the aggregate in the presence of moisture which forms a hydrophilic expansive gel. The gel absorbs moisture and swells which results in cracking and expansion of concrete structures. The reactive aggregate at Seminoe Dam has been identified as strained quartz which was the coarse aggregate used in the concrete. All modeling and conclusions developed in previous studies are applicable to efficiently update this current analysis which will also incorporate current information. The analysis shall incorporate updated concrete tests and instrumentation data. The results of the updated structural analysis and modeling will be used in a risk analysis. The authority for use of other than full and open competition for this transaction is 41 U.S.C. 253(c)(1) as implemented by FAR 6.302-1, only one responsible source and no other supplies or services will satisfy agency requirements. Hatch Acres Corporation has the Seminoe Dam model and study data from studies performed in January 2001, December 2003, May 2004, April 2005 and January 2008 utilizing the GROW3D finite element model. This procurement shall be awarded using FAR Part 36 Architect-Engineer Services procedures, NAICS code 541330, with an intended period of performance ending September 30, 2015. Anticipated award date is January 30, 2014. All responsible sources may submit a capability statement by 12:00 pm MST, January 2, 2014, which shall be considered by the agency. Questions regarding this notice and responses to this notice shall be submitted to Judy Chamberlin, Contract Specialist, via e-mail to jchamberlin@usbr.gov.
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/notices/432c964e997fad25f4e8b9de82682798)
- Place of Performance
- Address: Seminoe Dam, Rawlings, Wyoming, United States
- Record
- SN03253385-W 20131219/131217235243-432c964e997fad25f4e8b9de82682798 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
(may not be valid after Archive Date)
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