Tankage
Prospect Construction has established itself as a proven contractor in tank and water storage infrastructure. With a team bringing extensive experience across the full lifecycle of tank projects, Prospect has successfully delivered complex work including water storage tanks, intake structures, water diversions, and related water resource facilities. Prospect’s team applies disciplined planning, technical expertise, and field-proven execution to every project, making Prospect a reliable partner for the successful delivery of demanding tank and water infrastructure projects.
Keystone Projects
RECLAIMED WATER DISTRIBUTION SYSTEM IMPROVEMENTS -
North Bend, WA
City of Snoqualmie, Design-Bid-Build
Engineer: RH2 Engineering, Inc.
The System Improvements consist of constructing a new 0.4 MG Type I pre-stressed concrete reservoir and pump station and the associated structural, mechanical, electrical, and automatic control work for those facilities. There will also be retrofit mechanical and electrical improvements to the existing irrigation pump station.
Water Tank Replacement Project- Fort Benton, MT
City of Fort Benton- Design- Bid-Build
Engineer: Great West Engineering
The City of Fort Benton needed to upgrade their water storage capacity with the construction of a new 980,000-gallon prestressed concrete tank. This project required mass excavation of the tank site, foundation improvements, and a new 1,700 linear foot 14" transmission main with a 60 linear foot bore under St. Charles Street. Other improvements include new telemetry control system and demolition of existing steel water tanks.
Henderson CSO- Concrete Portion- Seattle, WA
Seattle Public Utilities-Concrete Subcontractor
Engineer: CH2M Hill & HDR
The Henderson CSO Reduction project involved construction of an underground combined sewer overflow structure for the City of Seattle. In a rain event, the structure captures and stores sewer/stormwater in an effort to prevent release of it into Lake Washington. The challenge of this project was made more complex by the site’s location between the shore of Lake Washington and residential homes. This only allowed for crane access on one side of the structure, which resulted in concrete pumping and material delivery challenges, and unorthodox construction practices. The project required mass concrete placements, including 6ft thick walls and one-sided form systems. Thermal control practices and monitoring was required for the mass concrete placements. Overall, the project required the 10,000 cubic yard structure to be completed in 6 months
Bitter Lake Reservoir Improvements- Seattle, WA
Seattle Public Utilities- DesigN-Bid-Build
Engineer: Consor, Inc.
This project consists of the following elements of work: Construct a new partially buried 21-million-gallon concrete prestressed water reservoir to replace the existing concrete lined earthen dam water reservoir which has a floating cover. Types of work include civil, landscaping, structural, mechanical, electrical, instrumentation and controls, process and controls, erosion control and tree protection, and traffic control.
