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DNR COLORADO <br /> CO y CodW <br /> Conselorarvoationater Board <br /> Deparnnt nt of Natural Resources <br /> Task 2—Construction Engineering <br /> Description of Task: <br /> This task includes : <br /> a) Shop Drawing Review, <br /> b) Construction Observation <br /> Method/Procedure: <br /> a) Review and approve submittals as necessary <br /> b) Onsite observation of work performed by contractor and quantity of work assessments for <br /> payment. <br /> Deliverable: <br /> Approved monthly construction pay requests, Routine meeting notes shall be provided to the CWCB. <br /> Task 3—Construction <br /> Description of Task: <br /> This task includes : <br /> Construction of a new intake structure and construction of a new outlet works <br /> Method/Procedure: <br /> a) New Intake Structure: Consists of construction of a new concrete intake structure with guard <br /> gates (bulkheads) and a trash rack. Also included is the shotcrete lining of the intake tunnel and <br /> placement of a concrete invert, and pre-reinforcement of the future bypass tunnel. This work <br /> will be performed September 2018 through April of 2019 and will facilitate the schedule for the <br /> new outlet works. <br /> b) New Outlet Works: Consists primarily of construction of a new outlet works and includes: <br /> Construction of a 70-foot long reinforced shotcrete lined bypass tunnel around the existing gates; <br /> Steel lining of 270 feet of the existing outlet tunnel with 0.5-inch thick, 10.5-foot internal <br /> diameter pipe; Extension of the outlet works 147 feet; northeast along the valley bottom with a <br /> 10.5-foot internal diameter steel pipe; Construction of a pre-cast concrete valve vault with twin <br /> 84-inch fixed cone valves and a 36-inch low flow valve. This system will accommodate <br /> operational flows of 30 to 1,600 cfs and emergency release flows up to 2,500 cfs; Filter, drain, <br /> and buttress of the toe of the dam and the left abutment with 30 feet of granular fill in the <br /> valley bottom; Construction of a new access road to the downstream toe of the dam. <br /> Deliverable: <br /> A final construction as-builts shall be provided to the CWCB. <br /> Budget and Schedule <br /> This Statement of Work shall be accompanied by a combined Budget and Schedule that reflects the <br /> Tasks identified in the Statement of Work. <br /> Reporting Requirements <br /> Construction Fund Grant - Exhibit A - Statement of Work Page 2 of 3 <br />