Gridor Construction, Inc.

SD Projects

Pressure Zone Improvements

Sioux Falls, SD

Contract: $1,240,941.00

Completed: June 2011

Owner: City of Sioux Falls, SD

Engineer: Howard R Green Company, Sioux Falls, SD

Scope: Replacement of 2 vertical turbine can style pumps, relocating existing piping, fittings, and valves. Install new piping, fittings and valves. Related concrete, masonry, excavation, backfilling site piping, electrical and mechanical systems. Plant Capacity will be upgraded by 8.4 MGD.



Tea Harrisburg Meter Building

Tea - Harrisburg, SD



Contract: $593,190.00

Completed: September 2008

Owner: Lewis and Clark Water System, Sioux Falls, SD

Scope: Construct two masonry meter buildings with piping, appurtenances, and telemetry to supply water to the communities of Tea and Harrisburg

TM Rural Water District

Dolton, SD

15,000 Sq. Ft. Water Treatment Plant – 4 MGD capacity. Cast in place/ Pre-cast Concrete construction

Lime softening/ Carbon Dioxide/ On-Site Chlorine generation/ Solids Contact Clarifier/ Gravity Filtration

750,000 gallon cast in place ground storage reservoir

Wastewater Treatment Facility

Phase IIA Improvements

Aberdeen, SD

Setting Precast Walls

Contract: $1,186,600.00

Completion: January, 2008

Scope: Expansion of existing Wastewater Treatment Plant consisting of erection of a precast building to house soda ash feed equipment complete with indoor storage silo and associated process, monitoring, and control equipment.

Big Sioux Community Water System

500,000 Gallon Clearwell Addition Project

Egan, SD

Setting Wall Gang Forms

Contract: $734,000.00

Completion: September 2007

Scope: Construction of 500,000 gallon below grade clearwell with associated system tie-ins

Water Reclamation Facility

Process Pump Station

Transfer Pump Modifications

Sioux Falls, SD

Contract: $1,015,151.78

Completion: April 2009

Scope: Replacement of (4) transfer pumps, 30” suction piping, and valves; modify and expand existing concrete wetwell; reroute existing 24” and 48” site piping