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and unstable rock slopes. This work was defined by 28 contract
drawings and 20 specification sections.
The Oroville Emergency Recovery contract associated with the
spillways (Specification No. 17-09) was advertised on March 31 and
awarded to Kiewit Corporation on April 15 for a low-bid amount of
$275 million. This was the main construction contract for
completing the work identified to restore the spillway capacities in
2017 and 2018. The Contractor’s bid was based on a 30-percent
design with 108 contract drawings and 47 specification sections.
The purpose for awarding the contract without a completed design
was to have a contractor on board to begin mobilization and
preliminary work as soon as possible, even though the designs
were not completed and the FCO Spillway chute was still being
operated intermittently until its final closure on May 19. The
contractor was given a Notice to Begin Work on April 20, with 75-
percent designs provided on May 18, Final designs provided on
June 21, and Revised Final designs provided on July 20. The major
elements of work in this contract included:
Slope stabilization
Demolition of reinforced-concrete chute walls and slabs
Foundation excavation
Foundation cleanup
Dental and leveling concrete construction
RCC construction (FCO Spillway chute)
FCO Spillway chute drains construction
Structural reinforced-concrete construction
Chute slab anchors construction
Crest concrete wall construction (right side of Emergency
Spillway)
RCC buttress and apron construction (Emergency Spillway)
Secant pile wall construction (Emergency Spillway)
With the approaches described above, it was recognized that the original
bid amount would likely increase, possibly by 50 to100 percent.
A formal, facilitated partnering process was agreed to between DWR and
the contractor (Kiewit Construction/Corporation) for the Spillways, Oroville
Emergency Recovery contract, as called for in the contract specifications.
Following the Award of the Contract, the Partnering Team developed and signed
a Partnering Charter on April 24 that laid out project and partnering goals. The
Partnering Team had bi-weekly Executive Partnering sessions and quarterly
team meetings to help foster a cooperative relationship. Surveys of the
Partnering Team members were conducted every two weeks in advance of the
Executive Partnering sessions that helped provide a pulse for the project and
facilitated information exchanges and issue resolutions.
75
Book of Full Papers
Symposium Hydro Engineering
- Titel
- Book of Full Papers
- Untertitel
- Symposium Hydro Engineering
- Autor
- Gerald Zenz
- Verlag
- Verlag der Technischen Universität Graz
- Ort
- Graz
- Datum
- 2018
- Sprache
- englisch
- Lizenz
- CC BY-NC-ND 4.0
- ISBN
- 978-3-85125-620-8
- Abmessungen
- 20.9 x 29.6 cm
- Seiten
- 2724
- Schlagwörter
- Hydro, Engineering, Climate Changes
- Kategorien
- International
- Naturwissenschaften Physik
- Technik