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Owner
Location Client (If Not Owner) |
Date Bid (B)
Completed (C) or Negotiated (N) |
Size
in MG |
Remarks
|
Cost in
Dollars |
Cost
¢/Gallon |
| City of Englewood, CO |
1973 (C) |
6.0 | Horizontal and vertical post-tensioned with tendons; won in alternate bidding competition with strand wrapped and wire wrapped shotcrete with steel diaphragm; part buried, includes excavation and backfill; post-tensioned roof. |
$536,000 |
8.9 |
| City of Arvada, CO 80th & Simms, Arvada, CO Wright-McLaughlin Engineers |
1974 (C) |
10.0 | Horizontal and vertical post-tensioned with tendons; was $5,000 higher than strand wrapped alternate, but was selected by contractor and owner due to advantages in wintertime constructability; buried, includes excavation and backfill, post-tensioned roof with tennis courts; includes all landscaping. |
$860,000 | 8.6 |
| Ken Caryl Ranch Water District Littleton, CO Wright-McLaughlin Engineers |
1975 (C) | 2@ 2.0 |
Horizontal and vertical post-tensioned with tendons; buried, includes excavation and backfill; post-tensioned roof. Won in alternate bidding competition with wire- and strand-wrapped wall designs. Higher price includes some rock excavation. |
$283,000 & $293,000 |
14.1 & 14.6 |
| Ken Caryl Ranch Water District Littleton, CO Wright-McLaughlin Engineers |
1975 (C) | 5.0 | Horizontal and vertical post-tensioned with tendons; buried, includes excavation and backfill; post-tensioned roof. Won in alternate bidding competition with wire- and strand-wrapped wall designs. |
$580,000 | 11.6 |
| City of Spokane, WA Atlas Prestressing |
1976 (C) Design-Build |
6@ 2.6 |
Horizontal and vertical post-tensioned with tendons; part buried; open top; secondary clarifiers. |
See summary below |
|
| City of Spokane, WA Atlas Prestressing |
1976 (C) Design-Build |
3@ 2.4 |
Horizontal and vertical post-tensioned with tendons; part buried; dome roof; anaerobic digesters. |
See summary below |
|
| City of Spokane, WA Atlas Prestressing |
1976 (C) Design-Build |
3@ 0.3 |
Horizontal and vertical post-tensioned with tendons; part buried; open top; gravity thickeners. |
See summary below |
|
| Spokane Tank Project Summary |
The tendon design for the 12 Spokane tanks noted above, saved $1,800,000 for the owner compared to strand-wrapped alternates designed by others. The solitary $4,000,000 bid received on the strand wrapped tanks had been declared invalid by the EPA (who was partially funding the project) because of lack of fair competition. The contractor then invited nationwide proposals from tank designers and prestressing firms. The tendon tank design by our firm won. (Contact J&CA for a brief article reprinted from Engineering News Record about this savings.) |
$2,200,000 Total for walls only |
9.3 Avg. |
||
| City of Carbondale, CO Wright-McLaughlin Engineers |
April 1976 (B) |
2.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof. Won in alternate bidding competition with wire- and strand-wrapped wall designs. |
$255,000 | 12.8 |
| City of Louisville, CO Louisville WTP Atlas Prestressing Rocky Mountain Consultants, Inc. Civil Engineers |
August 1976 (B) Design-Build |
3.0 | Horizontal and vertical post-tensioned; with a post-tensioned roof; won in a design / build competition with a steel tank and a reinforced concrete tank with a precast roof. We designed the post-tensioned structural floor as a consultant to Atlas. The pier-supported floor was required due to site conditions. The tank is above ground. |
$313,000 | 10.4 |
| Centennial Water District Highlands Ranch, CO Meurer and Associates |
1976 (C) (Wall Analysis) |
4.0 | Computer structural analysis of the post-tensioned wall for design by others. |
Not Applicable |
|
| Salt Lake County Water District Salt Lake City, UT Atlas Prestressing |
1976 (C) Design-Build |
3.0 | Horizontal and vertical post-tensioned; part buried includes excavation and backfill; post-tensioned roof and floor. |
$345,000 | 11.5 |
| City of West Jordan, UT Atlas Prestressing |
1976 (C) Design-Build |
2.0 | Horizontal and vertical post-tensioned; part buried, includes excavation and backfill; post-tensioned roof and floor. |
$230,000 | 11.5 |
| Southgate Water District Littleton, CO Meurer and Associates |
1976 (C) (Wall Analysis) |
2.0 | Computer structural analysis of the post-tensioned wall for design by others. |
Not Applicable |
|
| City of Loveland, CO M&I, Inc. Consulting Engineers |
1977 (C) (Rehabilitation) |
3.0 | Horizontal post-tensioned tendon repair of a distressed wire-wrapped tank originally designed by others. |
Not Applicable |
|
| Eastman Kodak Company Windsor, CO |
March 1977 (B) |
3.0 | Horizontal and vertical post-tensioned with tendons; not buried; includes $80,000 architectural precast concrete; post-tensioned roof. Won in alternate bidding competition with wire- and strand-wrapped wall designs. |
$333,000 | 11.1 |
| East Larimer Co. Water District Fort Collins, CO M&I, Inc. Consulting Engineers |
April 1977 (B) |
2.5 | Horizontal and vertical post-tensioned with tendons; buried, includes excavation and backfill; post-tensioned roof. Won in alternate bidding competition with wire and strand-wrapped wall designs. |
$279,000 | 11.2 |
| East Larimer Co. Water District Fort Collins, CO M&I, Inc. Consulting Engineers |
April 1977 (B) |
1.0 | Horizontal and vertical post-tensioned with tendons; buried, includes excavation and backfill; post-tensioned roof. Won alternate bidding competition with wire- and strand-wrapped wall designs. |
$146,000 | 14.6 |
| City of Canon City, CO M&I, Inc. Consulting Engineers |
September 1977 (B) |
4.0 | Horizontal and vertical post-tensioned; part buried, includes excavation and backfill; post-tensioned roof. |
$439,000 | 11.0 |
| E. Cherry Cr. Valley Water & San. Dist. Aurora, CO Meurer and Associates |
1977 (C) (Wall Analysis) |
1.0 | Computer structural analysis of the post-tensioned wall for design by others. |
Not Applicable |
|
| Denver Water Board Denver, CO DMJM-Phillips Reister |
March 1978 (B) |
10.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof. Owner selected three circular post-tensioned 10 M.G. tanks for this site in lieu of two rectangular conventionally reinforced 15 M.G. tanks proposed by others. |
$1,225,856 | 12.3 |
| City of Brigham City Brigham City, UT VSL Corporation |
1978 (C) Design-Build |
5.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof and floor. Seismic Zone 3. |
$860,000 | 17.2 |
| Town of Telluride, CO Wright-McLaughlin Engineers |
September 1978 (B) |
0.75 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof. Won in alternate bidding competition with wire- and strand-wrapped wall designs. |
$174,000 | 23.2 |
| Keystone Resort Summit County, CO Meurer and Associates |
1978 (C) (Wall Analysis) |
1.5 | Computer structural analysis of the post-tensioned wall for design by others. |
Not Applicable |
|
| Mt. Werner Water and Sanitation District Steamboat Springs, CO Wright-McLaughlin Engineers |
January 1979 (B) |
1.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof. Won in alternate bidding competition with wire- and strand-wrapped wall designs. |
$307,000 | 30.7 |
| Ft. Collins / Loveland, Water District Windsor, CO; Donath Lake Phase I M&I, Inc. Consulting Engineers |
February 1979 (B) |
2.0 | Horizontal and vertical post-tensioned; buried, includes rock excavation and backfill; post-tensioned roof. Won in alternate bidding competition with wire- and strand-wrapped wall designs. |
$347,000 | 17.4 |
| National Park Service Yellowstone National Park, WY Wright-McLaughlin Engineers |
August 1979 (B) |
1.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof. Won in alternate bidding competition with wire- and strand-wrapped wall designs. |
$408,524 | 40.8 |
| Roxborough Water and San. Littleton, CO Wright-McLaughlin Engineers |
March 1980 (B) |
1.0 | Horizontal and vertical post-tensioned; buried, includes rock excavation and backfill; post-tensioned roof. |
$296,000 | 29.6 |
| National Park Service Yellowstone National Park, WY Wright-McLaughlin Engineers |
May 1980 (B) |
1.6 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof. |
$400,965 | 25.1 |
| Battlement Mesa Inc. Parachute, CO Wright-McLaughlin Engineers |
July 1980 (B) |
1.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof. |
$294,535 | 29.5 |
| Ft. Collins / Loveland Water District Ft. Collins, CO M&I Inc. Consulting Engineers |
October 1980 (B) |
4.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof. |
$640,220 | 16.0 |
| Willows Water District Englewood, CO Meurer and Associates |
1980 (C) (Wall Analysis) |
5.25 | Computer structural analysis of the post-tensioned wall for design by others. |
Not Applicable |
|
| City of Albuquerque, NM Walker Reservoir Gordon Herkenhoff & Associates |
March 1981 (B) |
6.5 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof and floor. Won in alternate bidding competition with a steel tank. |
$1,105,000 | 17.0 |
| Castle Pines Metropolitan Dist. Castle Rock, CO Taranto, Stanton & Tagge |
May 1981 (N) (Negotiated) |
2.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof and floor. |
$500,000 | 25.0 |
| Battlement Mesa Inc. Parachute, CO Wright-McLaughlin Engineers |
July 1981 (B) |
3.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof and floor. |
$623,850 | 20.8 |
| E. Cherry Cr. Valley Water and San. Dist. Aurora, CO Meurer and Associates |
1981 (C) (Wall Analysis) |
5.0 | Computer structural analysis of the post-tensioned wall for design by others. |
Not Applicable |
|
| City of Fraser, CO Rocky Mountain Engineers |
July 1982 (B) |
1.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof. |
$295,000 | 29.5 |
| National Park Service U.S. Dept. of Interior Yellowstone National Park Wright-McLaughlin Engineers |
August 1982 (B) |
0.75 | Horizontal and vertical post-tensioned; buried, includes $25,000 worth of rock excavation and backfill; post-tensioned roof. |
$470,000 | 62.7 |
| Southgate Water Dist. Littleton, CO Meurer and Associates |
1982(C) (Wall Analysis) |
6.0 | Computer structural analysis of the post-tensioned wall for design by others. |
Not Applicable |
|
| Snowmasss Water and Sanitation District Snowmass at Aspen, CO Mclaughlin Water Engineers, Ltd. |
May 1983 (B) |
1.0 | Horizontal and vertical post-tensioned; buried with up to 8.5 feet of backfill on post-tensioned tank roof sloped to accommodate the ski run this tank is located in; includes excavation and backfill ($104,000 included for the special sheet pile shoring, dirtwork and under-drain, required due to poor earth-work conditions and site constraints); post-tensioned floor. |
$430,274 | 43.0 |
| Parkville Water District Leadville, CO W.W. Wheeler & Associates |
May 1983 (B) |
1.0 | Horizontal and vertical post-tensioned; buried, includes $33,000 excavation (done in 1982) and backfill; post-tensioned roof. |
$275,289 | 27.5 |
| Town of Silverthorne, CO Mclaughlin Water Engineers, Ltd. |
May 1983 (B) |
1.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof and floor. |
$344,777 | 34.5 |
| Denver Water Board Littleton, CO Meheen Engineering Corp. |
June 1983 (B) (Reviewed) |
10.0 | Computer analysis and wall design review and modifications of "V" shaped tendon design by others. Post-tensioned roof and floor. Includes $423,000 excavation and backfill (buried) excludes $359,000 piping, valves and miscellaneous. |
$1,779,000 | 17.8 |
| Town of Castle Rock, CO Cornerstone Builders, Inc. |
February 1984 (B) Design-Build |
0.5 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof and floor. The post-tensioned tank was preferred by the owner over a conventionally reinforced tank alternate, which was bid $5,000 less by the same contractor. |
$183,277 | 36.7 |
| Stonegate Center Metropolitan District Parker, CO Greiner Engineering |
July 1984 (B) |
2.5 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof and floor. |
$474,300 | 19.0 |
| Castle Pines North Metropolitan District Castle Rock, CO Taranto, Stanton and Tagge |
July 1984 (N) (Negotiated) |
2.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof and floor. |
$584,000 | 29.2 |
| Green Mountain Water & Sanitation District Lakewood, CO McLaughlin Water Engineers, Ltd. |
February 1985 (B) |
1.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; a post-tensioned, drilled pier supported, structural concrete floor was required due to swelling soil conditions at the site; post-tensioned roof. |
$400,000 | 40.0 |
| Town of Castle Rock, CO McLaughlin Water Engineers |
June 1986 (B) |
2.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof and floor. |
$444,000 | 22.2 |
| Meadows Metropolitan District No. 1 Castle Rock, CO Taranto, Stanton and Tagge |
July 1986 (B) |
3.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof and floor. |
$509,500 | 17.0 |
| City of Golden, CO N. Table Mountain, Golden, CO McLaughlin Water Engineers |
February 1987 (B) |
2.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned roof and floor. |
$376,115 | 18.8 |
| Consolidated Mutual Water Co. N. Table Mountain, Golden, CO McLaughlin Water Engineers |
April 1987 (B) |
2.0 | Horizontal and vertical post-tensioned; buried, includes rock excavation and backfill; post-tensioned roof and floor. |
$387,200 | 19.4 |
| National Park Service Grand Canyon National Park, AZ Mclaughlin Water Engineers |
August 1987 (N) (Negotiated) |
1.0 | Horizontal and vertical post-tensioned; partially buried, rock excavation; Chemically treated exterior color to blend in with the scenery. |
Not Available |
|
| Ciba-Geigy Chemical Company McIntosh, AL VSL Corporation |
March 1988 (Rehabilitation) |
3.5 | Investigation and rehabilitation of distressed emergency holding tank for hazardous wastes, designed by others. Horizontal and vertical post-tensioned wall, post-tensioned floor, open top. This tank is fiberglass lined to withstand anything with a pH between 2 & 12. Cost shown is for the post-tensioned concrete floor and wall only. |
$236,000 | 6.7 |
| Ciba-Geigy Chemical Company McIntosh, AL VSL Corporation |
March 1988 (Rehabilitation) |
2@ 0.5 |
Investigation and rehabilitation of distressed floors (due to subgrade settlement) of thickener tanks for treatment of hazardous waste, designed by others. Horizontal and vertical post-tensioned wall, conventionally reinforced floor and open top. Cost shown is for post-tensioned concrete floors and walls only. |
2@ $81,000 |
16.2 |
| Ciba-Geigy Chemical Company McIntosh, AL VSL Corporation |
March 1988 (Rehabilitation) |
3@ 0.85 |
Investigation and rehabilitation of distressed floors (due to subgrade settlement) of clarifier tanks for treatment of hazardous wastes, designed by others. Horizontally and vertical post-tensioned wall, conventionally reinforced floor and open top. |
3@ $102,000 |
12.0 |
| Ciba-Geigy Chemical Company McIntosh, AL VSL Corporation |
March 1988 (Reviewed) |
2.5 | Review and modification to the design of a storm water detention tank, designed by others, prior to construction. Horizontal and vertical post-tensioned wall, post-tensioned floor and open top. Cost shown is for the post-tensioned concrete and floor and wall only. |
$202,000 | 8.1 |
| Ciba-Geigy Chemical Company McIntosh, AL VSL Corporation |
March 1988 (Reviewed) |
2.0 | Review and modification to the design of a storm water detention tank, designed by others, prior to construction. Horizontal and vertical post-tensioned wall, post-tensioned floor and open top. Cost shown is for the post-tensioned concrete and floor and wall only. |
$146,000 | 7.3 |
| Hillsdale Powell Utility District Knoxville, TN VSL Corporation |
April 1988 (Reviewed) |
1.2 | Review and modification to the design of a clarifier tank, designed by others, prior to construction. Horizontal and vertical post-tensioned wall, post-tensioned floor, open top. |
$226,000 | 18.8 |
| Trinity River Authority Grand Prairie, TX VSL Corporation |
April 1988 (Reviewed) |
2@ 1.4 |
Review and modifications to the design of digester tanks, designed by others, prior to construction. Post-tensioned wall with "V" shaped tendons. Conventionally reinforced floor. These tanks were built inside distressed and abandoned wire-wrapped tanks, using the old walls as exterior forms. Fiberglass dome roof (not included in the cost.) |
2@ $185,000 |
13.2 |
| Triview Metropolitan District Monument, CO KKBNA, Inc. |
April 1988 (Reviewed) |
1.5 | Review and modifications to the design of a water tank, designed by others, prior to construction. Horizontal and vertical post-tensioned wall, post-tensioned floor and roof. |
Not Applicable |
|
| Snowmass Water and San. District Snowmass at Aspen, CO McLaughlin Water Engineers |
July 1988 (B) |
1.0 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned floor and roof, soil cover varied from 2 ft. to 15 ft. to blend in with the existing topography, requiring steeped footings and roof slabs. |
$446,752 | 44.7 |
| Consolidated Mutual Water Co. Green Mountain, Golden, CO McLaughlin Water Engineers |
August 1988 (B) |
0.8 | Horizontal and vertical post-tensioned; buried; post-tensioned floor and roof slabs. |
$225,000 | 28.1 |
| Superior Metropolitan District Superior, CO McLaughlin Water Engineers |
October 1988 (B) |
1.4 | Horizontal and vertical post-tensioned; buried, includes excavation and backfill; post-tensioned floor and roof. Floor and roof had additional post-tensioned reinforcement to withstand potential foundation movements. |
$343,321 | 24.5 |
| Snowmass Water and San. District Ridgerun Tank Snowmass at Aspen, CO McLaughlin Water Engineers |
June 1989 (B) |
1.0 | Horizontal and vertical post-tensioned wall; post-tensioned roof slab; post-tensioned mat foundation as the floor slab; buried with soil cover varying from 4' to 17'-6" to blend in with the existing topography of the site. This required stepped floor and roof slabs, includes excavation and backfill. |
$645,000 | 64.5 |
| Lookout Mountain Water District Chief Hosa Storage Reservoir Jefferson County, CO |
July 1989 (B) |
1.0 | Horizontal and vertical post-tensioned wall; post-tensioned floor and roof slabs; buried with no soil cover on the roof slab; price includes rock excavation, backfill and some piping. Owner paid $100,000 additional in first costs for the buried post-tensioned concrete tank in alternate bidding competition with a used steel tank when he considered the present worth of repainting costs, aesthetic value and other advantages of buried concrete reservoir. |
$347,000 | 34.7 |
| City of Albuquerque, NM Simms Reservoir Bohannan-Huston, Inc. |
January 1990 (B) |
7.0 | Horizontal and vertical and post-tensioned wall; buried; post-tensioned floor and roof. Price includes "normal" excavation and backfill; price does not include about 3.04/gal. worth of rock excavation, over-excavation of collapsible soils and replacement with select backfill below the tank. The owner declined our recommendation for a strand-wrapped wall alternate due to prior poor performance of a strand-wound tank designed by others and good experience with a prior tendon tank we designed. A distressed, above ground, wire-wound tank formerly serving this zone was demolished when this tank was finished. |
$1,290,000 | 18.4 |
| City of Salida, CO McLaughlin Water Engineers |
August 1990 (Rehabilitation) |
1.0 | Horizontal post-tensioned repair of a distressed wire-wrapped tank originally designed by others. |
Not Applicable |
|
| Perdue Farms, Inc. Accomac, VA VSL Corporation |
October 1990 (Reviewed) |
2@ 4.0 |
Review and modifications to the design of waste sludge tanks designed by others, prior to construction. Horizontal and vertical post-tensioned wall, post-tensioned floor and open top. |
$400,000 | 10.0 |
| Cities of Englewood and Littleton, CO Bi-City WWTP, Englewood, CO Dywidag Systems International, USA Brown &Caldwell (Civil Engineer) |
December 1990 (B) Design-Build |
2@ 2.0 |
Horizontal and vertical post-tensioned walls, above grade with a broken fin exterior architectural finish except for a white finish at external launder and brick veneer at the base of the walls. Conventionally reinforced floor slab and wall footing was designed by others, except for effects of fixed base wall connection. Won in "contractor design" competition with other tendon suppliers and tank designers. |
Not Available (Bid as part of a $25,000,000 WWTP expansion project.) See Fall, 1996 for cost information on identical tanks. |
|
| Perdue Farms, Inc. Accomac, VA VSL Corporation |
December 1990 (Reviewed) |
2.5 | Review and modifications to the design of a clarifier tank designed by others, prior to construction. Horizontal and vertical post-tensioned wall, post-tensioned floor, open top. |
$285,000 | 11.4 |
| Wampler Longacre Poultry Harrisonburg, VA VSL Corporation |
February 1991 (Reviewed) |
0.7 | Review and modification to the design of a clarifier tank designed by others, prior to construction. Horizontal and vertical post-tensioned wall, post-tensioned floor and post-tensioned top. |
$135,000 | 19.3 |
| West Lynn Creamery Digesters Lynn, MA VSL Corporation |
May 1991 (Reviewed) |
1.8 and 0.2 |
Review and modifications to the design of an anaerobic digester tank designed by others, prior to construction. Horizontal and vertical post-tensioned walls, post-tensioned floor and open top. A major wire-wound tank builder bid $225,000 higher for the same work. |
$515,000 | 28.6 |
| Manenggon Hills Golf Resort Guam, U.S.A. Dames & Moore, Denver, CO |
June 1991 (B) |
1.5 | Horizontal and vertical post-tensioned wall; partially buried; conventionally reinforced floor and roof slabs. Contains the days effluent from the wastewater treatment plant for spreading over the golf course at night. |
Not Available (Bid as part of a $15,000,000 WWTP project) |
|
| Manenggon Hills Golf Resort Guam, U.S.A. Dames & Moore, Denver, CO |
Pending need for treatment capacity |
0.3 | Horizontal and vertical post-tensioned wall; buried; conventionally reinforced floor, open top with concrete launder trough; clarifier for WWTP. |
Not Applicable |
|
| City of Boulder, CO and Pine Brook Water District Boulder, CO McLaughlin Water Engineers |
July 1991 (B) |
4.1 and 0.6 |
Horizontal and vertical post-tensioned walls; buried with backfill sloping up from 2 feet to 10 feet deep over the roof; post-tensioned floor and roof slabs. Price includes excavation and backfill, price does not include $74,460 for over excavation and lime stabilization of up to 25 feet of soft clay under 1/2 of the tank base. The owner elected to build a tank-within-a-tank in order to not commingle water supplies while sharing the same limited site. |
$974,664 for a 4.1 MG Tank $97,042 for a 0.6 MG Wall |
23.8 and 16.2 |
| Uwchlan Township Municipal Authority Exton, PA Terre Hill Concrete Products Co. Gannett Fleming, Inc. (Civil Engineer) |
October 1991 (B) Design-Build |
2.0 | Horizontal and vertical precast, post-tensioned walls; buried to within 5 feet of the top of the wall; post-tensioned floor and roof slabs. Price includes structural engineering fee. Price does not include $153,000 (7.7 ¢/gal.) for excavation and backfill. |
$645,000 | 32.3 |
| Texas Instruments Corp. McKinney, TX Texas Instruments Corp. VSL Corporation (Engineer) |
March 1992 (Rehabilitation) |
3.0 | Investigation and rehabilitation of seepage through the wall of a circular prestressed concrete tank with cast-in-place core wall, originally designed by others. |
Not Applicable |
|
| Birdsboro Borough Berks County, PA Terre Hill Concrete Products Keystone Engineering (Civil Engineer) |
March 1992 (B) Design-Build |
1.4 | Horizontal and vertical post-tensioned, precast walls; lowest 3 feet buried; post-tensioned floor and roof slabs. Price includes excavation, backfill and structural engineering fee. |
$339,600 | 24.3 |
| City of Albuquerque, NM Ponderosa Reservoir #2 URS Consultants |
February 1993 (B) |
6.0 | Horizontally and vertically post-tensioned walls; buried, with 3 feet of backfill over the post-tensioned two-way flat-plate roof; post-tensioned floor slab. Price includes excavation and backfill, stubbed-out piping and appurtenances. |
$1,465,900 | 24.4 |
| Montaire Farms of DelMarVa Selbyville, Delaware |
April 1993 (Investigation) |
0.5 | Peer review and modifications to the design of a circular prestressed concrete wastewater treatment tank designed by others prior to construction. |
Not Applicable |
|
| Town of Silverthorne, CO Golden Eagle Road McLaughlin Water Engineers |
June 1995 (B) |
0.5 | Horizontally and vertically post-tensioned wall; with 3 feet of backfill over the post-tensioned two-way flat plate roof; post-tensioned floor slab. Price includes excavation and backfill, stubbed out piping and appurtenances. |
$287,022 | 57.4 |
| Town of Castle Rock, CO Green Zone II Tank Meurer and Assoc., Structural Engr. |
August 1995 (Review) |
2.0 | Review and modifications to the design and details of the post-tensioned concrete water tank. Horizontally and vertically post-tensioned wall with post-tensioned floor and two-way flat plate roof. |
Not Applicable |
|
| Indianapolis Water Co. South Well Field Backwash Tank HNTB, Structural Engr. |
February 1996 (Review) |
0.3 | Review and modifications to the design and details of the circular post-tensioned concrete backwash water tank. Horizontally and vertically post-tensioned floor and two-way flat plate roof. The owner hired us to assist HNTB in copying our typical design developed for circular prestressed concrete water tanks. |
Not Applicable |
|
| City of Broomfield, CO GWRRP WTP, Backwash Tank Centric / Jones, Constructors |
February 1996 (Rehabilitation) |
1.0 | Investigation and rehabilitation of distressed post-tensioned concrete tank originally designed by others. The radially post-tensioned floor slab had failed below the center column during the initial stressing operation. |
Not Applicable |
|
| City of Westminster, CO Semper WTP, Clearwell Centric / Jones, Constructors |
May 1996 (Rehabilitation) |
5.0 | Investigation and rehabilitation of distressed and leaking post-tensioned concrete tank originally designed by others. Floor slab had failed around a 5'-0" diameter pipe. |
Not Applicable |
|
| Cities of Englewood and Littleton, CO Bi-City WWTP, Englewood, CO Brown & Caldwell |
Fall 1996 (B) |
1@ 2.0 1@ 1.5 |
Horizontal and vertical post-tensioned walls, above grade tanks. Price includes broken fin exterior architectural concrete finish, (except white finish at external launder and brick veneer at wall base). Conventionally reinforced floor slab and integral wall footing designed by Brown & Caldwell, except for the effects of the fixed base wall connection. Open top. |
$561,600 $95,600 (Exc. & Backfill) $417,628 $132,121 (Exc. & Backfill) |
28.1 4.8 27.2 8.8 |
| City of Broomfield, CO Interlocken Golf Course HDR Engineers |
March 1997 (B) |
6.0 | Horizontally and vertically post-tensioned wall; buried, with up to 4 feet of backfill over the post-tensioned two-way flay plate roof; post-tensioned floor slab. Price includes excavation and backfill, stubbed-out piping and appurtenances. Price does not include about $90,000 for 10 ft. of lime-treated structural fill below the tank. This tank was designed for H-20 truck loads as it is buried under a public golf course. |
$1,320,00 | 22.0 |
| Town of Castle Rock, CO Purple Zone Tank McLaughlin Water Engineers |
July 1997 (B) |
1.0 | Horizontal and vertical post-tensioned wall; partially buried, includes excavation and backfill; post-tensioned roof and membrane floor. |
$512,951 | 51.3 |
| CBP Resources, Inc. Fayetteville, NC D.W. Burt Concrete Construction, Inc. |
September 1997 (B) Design-Build |
2.2 | Horizontal and vertical post-tensioned wall. Above grade, does not include site preparation. Open top clarifier. |
$245,000 | 11.1 |
| CBP Resources, Inc. Fayetteville, NC D.W. Burt Concrete Construction, Inc. |
September 1997 (B) Design-Build |
0.4 | Horizontal post-tensioned only; conventionally reinforced vertically. Above grade, does not include site preparation. Open top gravity thickener. |
$108,00 | 27.0 |
| Grain Processing Corporation Washington, Indiana Bowen Engineering Corporation, G.C. |
January 1998 (B) Design-Build |
2@ 1.7 2@ 1.0 1@ 0.2 |
Value engineering redesign of conventionally reinforced concrete waste treatment tanks originally designed by others. The two 1.0 MG tanks were originally designed to be circular. The others were originally designed as rectangular. All were converted to circular prestressed concrete tanks with horizontally and vertically post-tensioned walls and two-way post-tensioned membrane floors. Price includes walkways on tops of the walls and launders as applicable, and excavation and backfill, but not piping and appurtenances or redesign fees. |
$1,150,00 The owner saved $315,000 as a result of our design. |
20.9 |
| Corporación Servicos Mirador Norte, S.A. Ciudad Modelo Water Tanks Santo Domingo, Dominican Republic Matsos & Arzeno, S.A. |
September 1998 (B) Design-Build |
2@ 2.0 |
Horizontal and vertical post-tensioned cast-in-place wall; not buried; post-tensioned membrane slab floor; post-tensioned two-way flat plate roof. Price includes structural design fee. |
$459,385 each |
24.3 |
| Superior Metropolitan District No. 1 Superior, CO Low Zone Water Storage Tank McLaughlin Water Engineers |
October 1998 (B) |
1.6 | Horizontal and vertical post-tensioned wall; buried, includes excavation and backfill; post-tensioned floor and roof. Roof designed for allowing water to rise into the cone, 3-feet above the wall joint. Price dose not include $37,500 for 5 ft. of lime-treated structural fill below the tank. |
$664,475 | 41.5 |
| Castle Rock Development Company Meadows Yellow Zone Tank 12a Castle Rock, CO Meurer & Assoc., (Civil Engineer) |
January 1999 (B) |
4.0 | Horizontal and vertical post-tensioned wall; buried, includes $177,000 for excavation and backfill; post-tensioned floor and roof. Price does not include $62,000 for lime-treated fill below the tank. |
$980,000 | 24.5 |
| City of Lafayette, CO Yellow Zone Water Tank, at the Baseline Road WTP McLaughlin Water Engineers |
August 1999 (B) |
4.0 | Horizontal and vertical post-tensioned wall; buried, includes excavation and backfill; post-tensioned floor and roof. Price includes a premium for an extremely tight site, without room for storage of the excavated materials. |
$1,400,000 | 35.0 |
| Superior Metropolitan District No. 1 Rock Cr. WWTP, Superior, CO Clarifier Tank and two Digester Tanks McLaughlin Water Engineers |
September 1999 (B) |
0.35 and 2@ 0.5 |
Horizontal and vertical post-tensioned wall; buried, post-tensioned floor open top. Horizontal and vertical post-tensioned digester walls; buried, with up to three feet of backfill over the post-tensioned two-way flat plate roofs; post-tensioned floor slabs. |
Unknown, Bid as part of a $1,337,000 add'n to the Water Treatment Plant | |
| Superior Metropolitan District No. 1 Rock Cr. WWTP, Superior, CO High Zone Water Storage Tank McLaughlin Water Engineers |
October 1999 (B) |
0.5 | Horizontal and vertical post-tensioned wall; buried, includes excavation and backfill; post-tensioned floor and roof. Roof designed for three feet of backfill plus H-20 trucks on the roof. Price does not include $78,500 for 5 ft. of lime-treated imported structural fill below the tank and exporting excess earth. |
$457,180 | 91.4 |
| Superior Metropolitan District No. 1 Rock Cr. WWTP, Superior, CO McLaughlin Water Engineers |
May 2000 (B) |
0.5 | Horizontal and vertical post-tensioned wall; buried, includes excavation and backfill; post-tensioned floor, open top. |
Unknown, bid as part of a $3,600,000 add'n to the Waste Water Treatment Plant |
|
| Superior Metropolitan District No. 1 Superior, CO, Digester Tanks McLaughlin Water Engineers |
May 2000 (B) |
2@ 0.5 |
Horizontal and vertical post-tensioned wall; buried, includes excavation and backfill; post-tensioned floor and roof. Roof designed for three feet of backfill. |
Unknown, bid as part of a $3,600,000 add'n to the Waste Water Treatment Plant |
|
| Town of Fraser Maryvale Subdivision, Grand County, CO McLaughlin Water Engineers |
June 2001 (B) |
0.5 | Horizontal and vertical post-tensioned wall; buried includes excavation and backfill; post-tensioned floor and roof. Roof designed for two feet of backfill and 75 psf snow load. |
$620,000 | 1.24 |
| City of Lafayette, CO Lafayette Wastewater Treatment Plant McLaughlin Water Engineers |
October 2001 (B) |
0.2, and 0.4 |
A circular prestressed concrete primary clarifier, and a prestressed concrete secondary clarifier. Horizontal and vertical post-tensioned walls; buried; post-tensioned floors, open tops. |
Unknown, bid as part of a $5,000,000 add'n to the Waste Water Treatment Plant |
|
| Jiamusi Municipal Auth. City of Jiamusi, People's Republic of China Northeast Public Works Design and Research Institute |
January 2002 (B) |
2@ 3.0 |
Circular prestressed concrete potable water tanks. Horizontally and vertically post-tensioned wall, post-tensioned membrane floor with integral wall and column footings. As with all tanks built in China to date, these have all unbonded tendons, in the floors, walls and roofs. Buried with 2 ft. of backfill on roofs. |
$481,900 | 8.0 |
| Yingkou Waste Disposal Auth. Yingkou WWTP, People's Republic of China Northeast Public Works Design and Research Institute |
February 2002 (B) |
1.6, and 1.5 |
A circular primary clarifier, a circular secondary clarifier. Horizontally and vertically post-tensioned walls, post-tensioned membrane floors with integral wall footings / foundations. |
$220,000 and $210,000 |
13.8 and 14.0 |
| Panjin Waste Disposal Auth. Panjin WWTP, People's Republic of China Northeast Public Works Design and Research Institute |
March 2002 (B) |
1.5 |
A circular prestressed concrete secondary clarifier. Horizontally and vertically post-tensioned walls, post-tensioned structural floors with tension piers and integral wall footings / foundations. |
$210,000 |
14.0 |
| Jinzhou Waste Disposal Auth. Jinzhou WWTP, People's Republic of China Northeast Public Works Design and Research Institute |
March 2002 (B) |
1.6, and 1.5 |
A circular clarifier. A circular secondary clarifier. Horizontally and vertically post-tensioned walls, post-tensioned structural floors with tension piers and integral wall footings / foundations. |
$170,000 and $160,000 |
10.6 and 10.7 |
| Black Hawk - Central City Sanitation Dist. WW Treatment Fac., Black Hawk, CO Greeley and Hansen LLC |
Spring 2003 (B) |
2@ 0.25 |
Two circular concrete prestressed concrete secondary clarifiers. Horizontally and vertically post-tensioned walls, post-tensioned floors. Open tops. |
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| San Lorenzo-Cagus Water Supply Auth. San Lorenzo Tank, Puerto Rico Gregory L. Morris and Assoc. Engineers |
Spring 2003 |
2.0 | Horizontal and vertical post-tensioned wall; above ground, includes site preparation on; post-tensioned roof and membrane floor. |
Unknown at this time | |
| San Lorenzo-Cagus Water Supply Auth. San Lorenzo Tank, Puerto Rico Gregory L. Morris and Assoc. Engineers |
Spring 2003 |
3.0 | Horizontal and vertical post-tensioned wall; above ground, includes site preparation on; post-tensioned roof and membrane floor. |
Unknown at this time | |
| Town of Castle Rock Castle Oaks Potable Water Tank Castle Rock, CO HDR Engineers, civil engineer |
Summer 2003 (B) |
9.8 | A circular prestressed concrete potable water tank with a horizontally and vertically post-tensioned wall, post-tensioned membrane floor with integral wall and column footings. Above grade. |
In design stage | |
| City of Albuquerque, NM Zamora Reservoir Albuquerque, NM Leedshill-Herkenhoff Engineers |
Unknown Pending Need, Design Completed |
4.0 | Horizontally and vertically post-tensioned wall; buried, with 3 feet of backfill over the two-way flat-plate roof; post-tensioned floor slab. Price includes excavation and backfill, stubbed-out piping and appurtenances. |
Not yet available | |
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