Bostwick Park Project

State: Colorado
Region: Upper Colorado Basin Region

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Bostwick Park Project History - 37 KB

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Construction

Construction began at Silver Jack Dam late in 1966 and was completed in 1971. Silver Jack Reservoir was filled on June 10, 1971, and project water was available to supplemental service lands from existing ditches on a water rental basis during the 1971, 1972, and 1973 irrigation seasons. A negative declaration of environmental impact was filed July 21, 1972, for drainage rehabilitation and for replacement of the Vernal Mesa conduit. Construction of these facilities was completed during fiscal year 1974. The project furnishes a dependable late-season supply of irrigation water. Non-project supplies are generally abundant until the latter part of the irrigation season, but then fall off resulting in serious curtailment of crop yields. Project water from Cimarron Creek, and in small part from tributaries of Cedar Creek, is used as a full irrigation supply for lands not previously irrigated and as a supplemental supply for lands inadequately served. Raising beef cattle and sheep are the major enterprises in the project area. Irrigated lands are used chiefly for the production of alfalfa, grass hay pasture, and small grains for livestock feed. The U.S. Forest Service developed recreation facilities by the Forest Service under a cooperative arrangement with the Bureau of Reclamation. Facilities include access roads, campgrounds, a boat dock, trails, fences, landscaping, and an administration site. There were 84,500 visitor days to the reservoir area in 1996. For specific information about recreational opportunities at Silver Jack Reservoir click on the name below. http://www.recreation.gov/detail.cfm?ID=61 Although there is no specific reservoir capacity assigned for flood control, the Bostwick Park Project has provided an accumulated $34,000 in flood control benefits from 1950 to 1999. The small west-central Colorado town of Bostwick Park barely makes a blip on most maps and atlases, if it even shows up at all. A small farming community, roughly forty-five families, the town offers little in the way of tourist attractions-despite the proximity of the Black Canyon of the Gunnison National Monument-which probably accounts for a decided lack of general knowledge and information about the area. The area did, however, make a blip on the United States Bureau of Reclamation`s internal project planning screen. Charged with developing the Upper Colorado River Basin under the Colorado River Storage Project Act in 1956, Reclamation designed a project to aid local water users with their continued irrigation needs. One of the designated `Participating Projects` of the Colorado River Storage Project (CRSP), the Bostwick Park Project, as it came to be known, was partially constructed with funds accrued through the generation of power at units located on the main-stem of the Colorado River, including Glen Canyon and Flaming Gorge, of CRSP. In this case the program worked; main stem hydropower generation funded the construction of a smaller project in an area which otherwise could not support project funding, but needed the additional water resources Reclamation could provide. Located in west-central Colorado near the city of Montrose, the Bostwick Park Project consists of the Silver Jack Dam and Reservoir and an irrigation distribution system. The dam sits on Cimarron Creek about twenty-miles above its junction with the Gunnison River. The project developed flows of Cimarron Creek, a tributary of the Gunnison River, for irrigation and recreational purposes. The project provides full and supplemental irrigation water to 5,608 acres of land in the Bostwick Park Water Conservancy District.(1) Project facilities are entirely located within the Uncompahgre National Forest. The earliest archaeologically confirmed inhabitants of southwestern Colorado date back nearly 10,000 years. The discovery of Folsom and Clovis Points on the Uncompahgre Plateau suggest land usage and possibly settlement by early humans, Folsom and Clovis hunters, dates back even further. The Uncompahgre Complex, an archaeological term denoting native residents of the region of west-central Colorado along the Uncompahgre Plateau, inhabited the region beginning in roughly 10,000 B.P. This group depended primarily on hunting and gathering for subsidence and as such traveled extensively throughout the region. The societal organization of this prehistoric group revolved around the availability of vegetation and wildlife within the region. Archaeologists theorize that the Uncompahgre Complex preceded the Ute Indian culture. The Fremont group occupied the region just to the north and west of the Uncompahgre Complex from roughly 700 to 1100; the Fremont culture was so named because the original archaeological finds occurred in the Fremont River basin in south-central Utah. Archaeologists know little about this particular culture, however artifacts found throughout the Uncompahgre Complex region demonstrate a fairly wide sphere of influence. The Fremont people constructed pithouse-like structures and used aboveground masonry. They relied on a variety of sustenance methods; they grew crops as well as continued traditional means of hunting and gathering. For as yet undetermined reasons, the Fremont returned to a nomadic existence around 1100. The Anasazi Indians, the most recognized of Colorado`s ancient inhabitants, settled throughout southwestern Colorado beginning about 2000 years ago and lasting for about 1300 years. Archaeologists divide the Anasazi period into four distinct cultural periods-the Basketmaker Period (1-450), the Modified Basketmaker Period (450-750), the Developmental Pueblo Period (750-1100), and the Classic Pueblo Period (1100-1300). Each period denotes a subtle advance in either technology or craftsmanship throughout the culture, the final considered a period of cultural greatness. Though theories abound consensus as to why the Anasazi abandoned the area in 1300, no definitive widely-accepted conclusion has been reached.(2) The remains of the Anasazi habitation of the area remained untouched for hundreds of years after they were abandoned, their existence virtually unknown. At the same time, the Uncompahgre Complex stayed in the area and slowly evolved into the Ute culture discovered by the Spanish several hundred years later. The Spanish were among the first Europeans to settle in the Americas in general and the southwestern United States specifically, though at the time it still belonged to Mexico and Spain. Eighty years prior to the Pilgrims landing at Plymouth Rock in 1620, Spanish colonists from Mexico moved northward encountering Pueblo villages and the Grand Canyon. By 1640, the Ute realized the benefits of the horse and established trade routes with the Spanish. The new trade relationship between the two groups ensured amicable relations which in turn allowed the Spanish to freely explore the frontier north of New Mexico. Beginning in 1761, Juan de Rivera led three separate expeditions to the northern Colorado Rockies looking primarily for mineral wealth. Though the expeditions found no precious metals, the third one did establish a brisk trade with the Ute living in the vicinity of the Gunnison River. Outside of sporadic trade records historians know little about Spanish activities in southwestern Colorado after Rivera`s expeditions. The next major Spanish expedition took place in 1776. Fathers Francisco V. Dominguez and Silvestre Velez de Escalante set out hoping to discover a route between Santa Fe and the missions of California. The fathers believed that a more southwestern course to California was impractical due to the Hopi villages and Hopi hostility to the Spanish. For this reason the fathers chose a route north of the Colorado River though Ute country. Though they never reached California, the fathers and their expedition discovered much about the history and development of the southwest. As new explorers and settlers traveled north from Mexico and New Mexico they followed a portion of the fathers route which later became known as the Old Spanish Trail. By the start of the nineteenth century the Spanish and Mexican dominance over the southwest began to wane. The Louisiana Purchase of 1803, brought more and more explorers and settlers into the middle and western portions of North America, though most avoided actually settling in the southwest portion of present-day Colorado. From 1803 until the American annexation of Mexican lands in 1848 following the Mexican War, Mexico tried to retain control of the land in the areas now known as Colorado, New Mexico, Utah, and Arizona. Their efforts were to no avail, however, as the start of the fur trade brought additional explorers to the region.(3) The explorers the fur trade brought to the region would not fit anyone`s traditional definition of explorers. They did not set out to map, document, and settle the region, instead they came to exploit the resources found therein. The fur trappers explored much of the Rocky Mountain region while searching for new hunting grounds, though they rarely recorded their findings. This period of informal exploration lasted roughly forty years, after which much of the beaver had been trapped and the demand for their skins declined. More traditional explorations of the region, many of them sponsored by the Federal Government, followed the decline of the fur trade. While Lewis and Clark undertook their famous expedition beginning in 1803, they never reached into southwestern Colorado. The expeditions which began after the discovery of gold in California in 1848 stemmed from the sudden impetus for westward expansion and the need for supply routes for those moving west in search of mineral wealth. Led by the likes of John Fremont (in ventures supported by his father-in-law, Senator Thomas Hart Benton), Captain John Williams Gunnison, and Captain Randolph B. Marcy, the expeditions of the first half of the nineteenth century all had common goals, namely finding a route for a transcontinental railroad and the best route west to California. Many, including Fremont and Benton, believed that the best route west went though Colorado over the Rocky Mountains. Just the opposite proved true as the Rockies proved nearly impassible, especially in winter which proved disastrous for more than one expedition as they floundered off course and got lost in the snow. Due largely to the hardships endured by reconnaissance parties, the government selected a more northerly route for the transcontinental railroad through Wyoming and Utah. For the most part, Anglo settlers, miners, missionaries and opportunists also avoided the area as there seemed to be little of interest in the region.(4) Throughout the first part of the nineteenth century, even as explorers began to map the region, the Ute remained relatively unaffected by the growing Anglo presence in the region. Until roughly 1860, the Ute retained their seasonal hunting grounds and wandering way of life with little contact with the mostly Spanish residents. The discovery of mineral wealth in southwestern Colorado brought many new settlers and gold seekers to the area which in turn disrupted the traditional Ute way of life. The influx of people, many with "mineral fever," drastically changed the Ute way of life; suddenly the Ute had to compete for previously uncontested lands and resources. The invading Anglos prevailed, as they did throughout most of the West, and the Ute were gradually moved onto reservations. By 1881, the Ute had been entirely moved onto reservations in far southwestern Colorado and northeastern Utah effectively ending the Ute occupation of southwestern Colorado.(5) Removal of the Ute from southwestern Colorado further opened the area to settlement and use by Anglo settlers. Those seeking to exploit the mineral resources of the area could do so unencumbered by previous settlement of the land. At the same time, those attempting to profit from the miners moving into the region found nothing blocking the establishment of at least semi-permanent settlements. The latter contingent was primarily comprised of merchants and farmers who provided much needed food and supplies to others within the region. The growing settlement of the area in turn created a demand for better and more efficient transportation methods and routes. In January of 1882, Joseph Selig, O.D. Loutsenhizer, S.A. Culbertson, A. Pumphrey, and John Baird laid out the town of Montrose, near present day Bostwick Park. The arrival of the Denver and Rio Grande Railroad (D&RG) soon after establishment of the town answered the need for improved transportation while also assuring the town`s role as a regional distribution center. The proximity of national transportation facilities led to the introduction of cattle and sheep ranching in the area.(6) Residents first settled in Bostwick Park and its vicinity in the 1880s. By 1930, the area reached its peak population of seventy-five to eighty families; from there the population decreased to roughly forty families by 1960, largely due to poor climatic and economic conditions in the area. The families in the area concentrated their efforts on raising cattle and sheep with irrigated lands used to grow feed, including alfalfa, grass hay, pasture, and small grains. Irrigated agriculture in the Bostwick Park area began during the early 1900s. Early irrigation in the region was provided by a number of private irrigation companies, the Vernal Mesa Ditch and Reservoir Company, the Hairpin Lateral Ditch Company, and the Cimarron and Uncompahgre Valley Canal and Reservoir Company. These companies built private ditches and canals to deliver water to local residents. As the needs of the irrigators outgrew the capabilities of the irrigation companies residents began looking for outside sources of funding to maintain local water supplies. One such source was the Bureau of Reclamation who began investigations in the project area in 1951.(7) Reclamation originally investigated the Bostwick Park Project in conjunction with the proposed Gunnison River Project. A 1951, reconnaissance report detailed plans for both projects, however the project remained undeveloped. Congress passed the Colorado River Storage Project Act April 11, 1956, authorizing construction of the four storage units of the Colorado River Storage Project (Flaming Gorge, Glen Canyon, Navajo, and the Wayne Aspinall(8) Units). The Act also authorized construction of eleven participating projects scattered throughout Arizona, Colorado, New Mexico, Utah, and Wyoming. As development of the upper basin continued Congress authorized additional participating CRSP projects. In 1961, Reclamation prepared a second feasibility study on Bostwick Park. Essentially the same as the original, this new report provided the basis for Congressional authorization of the Bostwick Park Project, on September 2, 1964, as a participating project of the Colorado River Storage Project (CRSP).(9) The Bostwick Park Project consists of Silver Jack Dam and an extended distribution system developed from the existing Vernal Mesa Ditch to serve lands above the original irrigation facilities. Silver Jack Dam and Reservoir, located about seventeen and one-half miles south of Cimarron, Colorado, on the Cimarron River, has a structural height of 173 feet with a crest 1,050 feet long and thirty feet wide. The structure itself contains 1,278,140 cubic feet of material. The outlet works consist of a morning glory spillway structure, spillway basin, and adjacent outlet works basin. The Silver Jack Reservoir holds a total of 13,520 acre-feet of water. Project water is released from Silver Jack Reservoir into Cimarron Creek. From the creek water travels into the pre-existing Cimarron Canal two and one-half miles below the dam. Some water is used on lands in the Cimarron area, but the canal conveys the bulk of project water another twenty-three miles to the canal terminus at Cerro Summit. From there the water is diverted into the existing Hairpin and Vernal Mesa Ditches. The Reclamation constructed Bostwick Lateral delivers water from the Vernal Mesa Ditch and conveys it across Bostwick Park through an 18-inch siphon to lands above the West Vernal Mesa Lateral. The preexisting Cimarron Ditch, the Vernal Mesa, east and west Vernal Mesa, and Hairpin ditches also supply water to project lands.(10) Preconstruction surveys for Silver Jack Dam began August 4, 1966. Bids for construction of the project were opened September 8, 1966. Reclamation awarded the contract to the low bidder, Johnson and Blattner Construction Company of Litchfield, Minnesota. Construction activities started October 21, 1966, with the cutting of timber and brush and clearing of the damsite. The contractor diverted the Cimarron River through a channel cut along the toe of the left abutment beginning on November 18. Soon after the diversion of the river construction activities ceased for the year. The contractor resumed work on the Silver Jack Dam in April of 1967. Work continued on the project through November when weather forced a halt to construction activities for the season. Work in progress for the 1967 season focused primarily on excavation operations for the canal areas, the spillway, cutoff trench, and the reservoir and damsite. Actual construction of the dam embankment began in August. Construction activities resumed in May of 1968 with the dewatering of the stilling basin for the spillway and outlet works. Work continued for the remainder of the season without interruption. The following year, 1969, work on the project began in late March after considerable snow removal. Structure excavation for the spillway stilling basin extension started April 14, and continued until late April. During the night of April 22, 1969, a massive landslide occurred on the right cut slope of the spillway stilling basin. The slide covered approximately nine and one-half acres and contained an estimated 700,000 tons of material. Even after cleanup operations had been completed in mid-May, the slide forced the abandonment and relocation of a portion of the spillway stilling basin. Two additional minor slides occurred on July 16 and 26. The new slides deposited an estimated 300 cubic yards and 150 cubic yards of saturated material within the excavated area of the relocated spillway conduit. Cleanup of the new slides was completed in August and concrete placement in the relocated spillway began August 15. Work continued on various portions of the project until late December when construction activities ceased for the year.(11) Work on the project resumed May 6, 1970, when the contractor began clearing snow from the County Road to the damsite. The contractor again rerouted the Cimarron River in July, diverting it through the outlet works allowing them to concentrate operations in the diversion gap. During the year, much of the work centered on completion of the dam embankment. The dam itself was sufficiently completed by the end of the year which allowed the Cimarron River to return to its bed on December 23, 1970. For the first time since the start of construction activities on the project work continued through the winter season. The initial structures on the project were completed enough to allow the initial diversion of water through the outlet works for irrigation purposes on May 4, 1971, just in time for the start of the irrigation season. Reclamation accepted all work under the contract as substantially complete September 1, 1971, with only cleaning and inspection work on the spillway remaining. Reclamation accepted the contract as complete on January 4, 1972, and delivery of project water began in June of 1972..(12) Development of design and specification data for the construction of additional canals and laterals on the project began in March of 1967 with field surveys of the existing canals and laterals in the vicinity of the project. The first stage of this portion of the project began October 27, 1972, when Reclamation awarded the contract for siphon replacement on the Vernal Mesa Ditch. The contractor completed the siphon replacement the following March, but due to leaks Reclamation did not accept the contract as complete until May 10, 1973. Reclamation awarded the contract for construction of the Bostwick Lateral in September and work began October 15. Work on the Bostwick Lateral was completed in July of 1974. On October 25, Reclamation entered into a contract with the Bostwick Park Water Conservancy District for rehabilitation of the Bostwick drains. The conservancy district contracted for the work based upon Reclamation plans and specifications. The conservancy district completed work under this contract on October 31, 1974.(13) In 1975, the Bostwick Park Water Conservancy District made required repairs to the Bostwick Lateral on the north and south ends. After completion of the necessary repairs, Reclamation officials made a pre-transfer inspection of the project. Reclamation then transferred the project to the Bostwick Park Water Conservancy District for operation and maintenance on January 1, 1976. The conservancy district held a public dedication ceremony on July 29, 1976. Former Congressman Wayne Aspinall was the principal speaker.(14)

Plan

Water storage is provided by Silver Jack Dam and Reservoir, constructed on Cimarron Creek. Project water is released from the reservoir to Cimarron Creek. The releases, along with usable natural flows, are diverted from the creek into the existing Cimarron Canal 2.5 miles below the dam, and conveyed 23 miles to the vicinity of the project land. Some water is released from the canal and used on lands in the Cimarron area. Most of the water is conveyed to the end of the canal at Cerro Summit and then delivered to the Hairpin and Vernal Mesa Ditches. The project-constructed Bostwick Lateral diverts water from the Vernal Mesa Ditch and conveys it across Bostwick Park through an 18-inch siphon to lands above the West Vernal Mesa Lateral. Silver Jack Dam is located on Cimarron Creek about 20 miles above the junction with the Gunnison River. The rolled-earthfill dam contains 1,278,140 cubic yards of material and has a structural height of 173 feet. Its crest is 1,050 feet long and 30 feet wide. The outlet works to Cimarron Creek in the right abutment has a capacity of 280 cubic feet per second with the reservoir at the normal water surface elevation of 8926.0 feet and a capacity of 160 cubic feet per second at the minimum water surface elevation of 8840.0 feet. The spillway on the right abutment is an uncontrolled ogee section with a capacity of 6,220 cubic feet per second at maximum water surface elevation. The reservoir has a total capacity of 13,520 acre-feet, including 12,820 acre-feet of active capacity and 700 acre-feet of inactive capacity. When filled to its normal water surface elevation, the reservoir has a surface area of 293 acres. The 3.6-mile Bostwick Lateral was constructed to deliver water to full service lands above the West Vernal Mesa Lateral. Repair, extension, and some new construction of about 7.2 miles of drains were completed by the water users. Project irrigation facilities were turned over to the Bostwick Park Water Conservancy District for operation and maintenance on January 1, 1976.

Contact

Title: Area Office Manager
Organization: Western Colorado Area Office - Grand Junction
Address: 445 W. Gunnison Ave., Suite 221
City: Grand Junction, CO 81501
Phone: 970-248-0600

Owner

Title: Public Affairs Officer
Organization: Upper Colorado Regional Office
Address: 125 South State Street, Rm 7102
City: Salt Lake City, UT 84138-1102
Fax: 801-524-5499
Phone: 801-524-3774

Contact

Organization: Bostwick Park Water Conservancy District
Address: 400 South 3rd
City: Montrose, CO 81401
Phone: 970-249-8707

PROJECTS & FACILITIES

Bostwick Park Project

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