Route No. 1-Overton-Lake Mead Road, Between Overton Beach & Park Boundary, 6 miles south of Overton, Overton

Source document Quoted word for word from HAER NV-40. Not written, edited or summarised by this site.

6 miles south of Overton Lake Mead National Recreation Area Clark County, Nevada U.S.G.S. Overton Beach Quadrangle UTM Zone 11 0736782E (NAD 27) U.S.G.S. Valley of Fire East Quadrangle UTM Zone 11 0729624E (NAD 27) Date of Construction: Engineer: U.S. Bureau of Public Roads Builder: Utah Construction Company

Source document Quoted word for word from HAER NV-40. Not written, edited or summarised by this site.

The Route No. 1 Overton-Lake Mead Road contributed significantly to National Park Service development of the Lake Mead National Recreation Area beginning in when the area was opened to recreational use. Drainage features along Route No. 1, particularly stone masonry culvert headwalls, gutters, and low-water crossings, are excellent examples of rustic style stone construction in national parks, monuments, and recreation areas during the and These masonry features also represent historic coordination of effort between the National Park Service and the Bureau of Public Roads to provide automobile access to, and within, park and recreation units. Diversion dikes and ditches along a portion of Route No.

1 represent the labor-intensive work of the Civilian Conservation Corps under National Park Service supervision in the late Route No. 1 was determined to be eligible for the National Register of Historic Places under Criteria A and C in (Daron Report Prepared By: Kurt Schweigert Associated Cultural Resource Experts (ACRE) Littleton, Colorado Date: September ROUTE NO. 1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAERNo.NV-40 Page2 I. Description Route No. 1 Overton-Lake Mead Road is a two-lane, asphalt-paved highway located about 7 miles south of Overton, Nevada. This documentation records approximately 6.2 miles of the original Route No. 1 Overton-Lake Mead Road (hereafter called Route No. 1) that is within the Lake Mead National Recreation Area.

Within the Recreation Area, Route No. 1 is a raised, 22-foot wide, two-lane highway with narrow shoulders, numerous drainage features, and two graveled parking areas. The highway embankment was originally constructed with a 30-foot wide base to support a 20-foot wide driveway at top, and the original embankment has been widened in several locations. The highway embankment varies in height from approximately 4 feet to nearly 30 feet above the adjacent ground surface, depending on local topography. The documented portion of Route 1 crosses through two general topographic zones,_badlands in the eastern half and sand dunes in the western half (Bezy Longwell, Pampeyan and Bowyer Route No. 1 was constructed in from Lake Mead westward and then northward toward the community of Overton.

Nevada State Highway 169 (the Valley of Fire Road) and Nevada State Highway 147 (North Shore Road) intercept the original Route No. 1 Overton-Lake Mead Road within the Recreation Area. Approximately half of the original Route No. 1 Overton-Lake Mead Road within the Recreation Area is now designated to be portions of the Valley of Fire Road and the North Shore Road. Route 1 was constructed through a desert landscape that is generally dry and devoid of extensive vegetation. Precipitation events in this landscape result in rapid run-off of water through gullies and low areas, and heavy downpours cause sheet wash to occur in relatively broad areas that lack well-defined drainage channels.

Containment of run-off is a critical element of highway construction in this environment, because the run-off can rapidly erode road embankments and surfaces and can also bury roadways under deposited earth and rock. The high volume and speed of water during run-off episodes require reinforcement of intake and outlet ends of culverts, and sheet wash must be diverted to culverts by means of dikes, ditches, or gutters placed upslope or adjacent to the base of the roadway. II. Architectural and Engineering Information The rugged nature of a substantial portion of the route is reflected in 68 cuts more than 5 feet deep through natural high points, the deepest of which is approximately 30 feet deep.

The road also includes 78 earthen fills that cross gullies or lessen grades; the highest of the fills is approximately 28 feet. Grades on the road range mostly between 2% and 5%, but the route includes grades up to 7% where the road ascends and descends two ridges. Four types of drainage features are associated with Route 1: culverts, gutters, diversion dikes and ditches, and low water crossings. Culverts and Headwalls Seventy-six pipe culverts exist along the documented portion of Route No. 1, at least 72 of which date from the construction of the highway. Original culverts typically have reinforcing headwalls at the inlet (upslope) and outlet (down slope) ends.

Original headwalls are semi-dressed local stone with concrete mortar, and headwalls on the road are in straight, winged, and special configurations. Culverts are typically single, corrugated steel pipes ranging from 18" to 42" in diameter, but three culverts have two steel pipes, and seven culverts have vitrified clay tile pipes. Culverts that run diagonally to the centerline of the highway are typically 32' long; others that run at an angle to the centerline to conform to the drainage bottom are slightly longer. Culverts and headwalls are further documented in HAER No. NV-40-A. ROUTE NO. 1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAER No. Page3 Gutters The documented segment of Route No.

1 includes 35 gutters or remnants of gutters, which were constructed along the roadway embankments to convey run-off water to culverts or to natural drainage channels down slope from the roadway. Original Route No. 1 gutters were constructed of flat stones, mainly sandstone, set in wet concrete. Gutters are three, four or five feet wide, shallow U-shaped in cross section, less than one foot deep, and from 6 to 50 feet long. Some of the gutters have been patched with asphalt. Gutters along Route No. 1 are further documented in HAER No. Diversion Dikes and Ditches The documented segment of Route No. 1 includes 28 earthen diversion dikes that protect the roadway from flooding and erosion by channeling runoff water toward culverts or natural drainage channels. Construction of Route No.

1 in included incorporation of at least 16 dikes with ditches that had been built previously by the Civilian Conservation Corps to protect an initial road from Overton to the Valley of Fire (see historical information below). Diversion dikes along Route No. 1 are typically one to three feet high above the surrounding natural ground surface, are six to 10 feet wide at base, and have adjacent ditches on the upslope sides. Diversion dikes and ditches vary in length from 17 feet to 991 feet. Most dikes are straight, but curved and V-shaped dikes are also present. Diversion dikes and ditches along Route No. 1 are further documented in HAER No. Low Water Crossings The documented segment of Route No. 1 includes two low water crossing structures, also known as curb-and- rundown structures.

These structures allowed run-off to pass over the roadway; otherwise a bridge or extensive fill and culvert would have been necessary to carry water under the roadway. The low water crossing structures consist of a stone and concrete curb wall along the downstream side of the paved roadway, a second stone and concrete wall downstream and at lower elevation from the road top, and an inclined spillway area of dry-laid sandstone rubble between the two curb walls. Low water crossing structures are further documented in HAER No. Station Markers The documented segment of Route No. 1 includes 13 survey control monuments established by the Bureau of Public Roads in and one additional control monument established by the Federal Highway Administration at an unknown date.

Survey monuments are further documented in HAER No. NV-40-E. Several changes have occurred to the recorded segment of Route No. 1 since construction in notably in the and in (Daron The driving surface of the road was originally 20 feet wide, but the road has been resurfaced and was widened to 22 feet at an unknown date. The road grade has also been widened in some locations. Several of the original culvert headwalls have been replaced with concrete headwalls, concrete gathering structures, or bare culvert pipes without headwalls. The most recent replacement and removal of headwalls and culverts occurred in February following heavy rains and substantial erosion damage to portions of the road.

At least one culvert headwall has been entirely buried, and many gutters have deteriorated due to erosional under-cutting and collapse. The intersection of Overton Beach Access Road and North Shore Road was originally a wide curve; this was changed to more of a T-intersection at an unknown date. The parking area at the eastern end of the road was substantially expanded, a store and visitor facilities constructed, and a housing area constructed following the inundation of original visitor facilities in The second parking area along the north side of the road has also ROUTE NO. 1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAER No. Page4 been substantially expanded by deposition of earth on the north, east, and south sides of the original pull-out parking area. III.

Historical Information The documented portion of Route No. 1 Overton Lake Mead Road (hereafter Route No. 1) is located in the Lake Mead National Recreation Area (LAME), which includes lands surrounding Lake Mead in Nevada and Arizona. The northwestern end of the documented portion of Route No. 1 is about 45 miles northeast of Las Vegas, Nevada and about 7 miles south of Overton, Nevada. Lake Mead was formed by impoundment of the Colorado River behind Hoover Dam beginning in The National Park Service began administering the Boulder Dam Recreational Area (later part of LAME) in under an agreement with U.S. Bureau of Reclamation.

The Park, Parkway and Recreational Area Study Act of that year authorized the NPS to develop recreational areas (Daron McClelland The Overton Arm of Lake Mead was formed by the inundation of the lower portions of the Virgin River and Muddy River valleys. In the this desert area was extremely sparsely populated, with small farms along the rivers and several silica sand mines in uplands. The community of Overton, on the Muddy River to the northwest of the documented segment of Route No. l, was served by a spur line from the main San Pedro, Los Angeles and Salt Lake City Railroad (Union Pacific Railroad) to the north. Overton was also served by a highway that ran north of the town to connect with the main highway between Las Vegas and St. George, Utah (now Interstate The village of St.

Thomas was located on the lower Muddy River to the northeast of the documented segment of Route No. 1; St. Thomas was inundated by Lake Mead. Several trails and roads connected the communities of the area, including a road from Overton to St. Thomas, a road from St. Thomas to Rogers Spring to the southwest of the recorded segment of Route No. 1, and a road from Las Vegas through the Valley of Fire to St. Thomas. The latter route had been used by Mormon emigrants traveling to southern California in the and later. In the latter route became part of the Arrowhead Trails Highway, which was one of several routes then competing for interstate and transcontinental highway status.

This route was never substantially improved as an automobile highway, and by it was abandoned in favor of a route located farther north, now Interstate 15 Lyman Nevada State Department of Highways WPA The huge lake created behind Hoover Dam generated a potential for recreation and tourism. In before construction of Hoover Dam began, NPS personnel toured the future reservoir area, searching for possible sites for recreational development (Edwards The Overton area was one of six sites considered, in part because visitors could reach Overton by both railroad and highway: The area near the future reservoir was "cut up somewhat with gullies," but there were "large flat areas" that would overlook the lake.

Overton was about 14 miles from the area that would become known as Overton Beach, but the report concluded that it "would not be difficult to construct a road from the existing road at Overton" to the designated recreation area (Edwards Civilian Conservation Corps Construction of the Valley of Fire Road Hoover Dam and Route No. 1 were not constructed as a make-work, depression-relief projects, but initial development of many roads and recreation facilities at Lake Mead was substantially accomplished by the Civilian Conservation Corps under supervision ofNPS personnel (White In the fall of CCC Company originally located at Mt. Charleston northwest of Las Vegas, transferred to the Overton camp, which was located in Kaolin, just south of Overton.

At the same time, CCC Company 573 was established at the camp, with the "initial assignment ... to construct an improved road from Overton to the Valley of Fire" (Olson ROUTE NO. 1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAER No. Page5 This road was constructed in as an unpaved road, but Company 974 was credited with construction of the road. In the Overton CCC camp became involved in the archaeological excavation of Lost City, an ancient Native American site that would be inundated by Lake Mead. In Company 573 was transferred to Boulder City, Nevada, becoming one of the so-called Twin Camps at that location (White The road built by the CCC from Overton to the Valley of Fire was a precursor for the northern portion of Route No. 1.

The Overton-Valley ofFireroad built by the CCC followed a less direct route than did Route No. 1, so that Route No. 1 deviated several hundred yards from the earlier route in some locations (Soil Conservation Service The earlier road was substantially improved with corrugated steel culverts and many earthen dikes and ditches to control flooding and erosion. drawings for Route No. 1 indicate that many of the culvert pipes and some of the dikes and ditches of the earlier road were re-utilized in the construction of Route No.

1 in (National Park Service Seven dikes and ditches included in this documentation were constructed by the One additional dike and ditch structure included in this documentation is assumed to have been built by the this structure was not shown on the plans for Route No.I but is physically similar to other CCC-built dikes and is along a segment of the CCC-built road that was overlain by Route No. 1. Construction of Route No. 1 included removal of other roads, so that few vestiges of the CCC road remain other than dikes and ditches (National Park Service Design of Route No. 1 Route No. 1 was designed and built in a cooperative effort between the National Park Service and the Bureau of Public Roads.

Congress began establishing national parks in with the designation Yellowstone National Park, primarily to preserve areas of natural beauty. In Congress passed the Antiquities Act that, among other provisions, allowed presidents to designate national monuments that contained historic and prehistoric structures and other objects of historic or scientific interest. The National Park Service was established as a distinct .. bureau within the Department of the Interior in to administer the 14 national parks and 21 national monuments then under the control of the Department of the Interior. In NPS became the administering agency of battlefields, forts, and other historic military sites that had been administered by the War Department, 15 national monuments that had been administered by the U.S.

Forest Service, and the national capital parks and monuments.

As referenced above, s role was again expanded in to include administration of national recreation areas, the first of which was Lake Mead National Recreation Area (Mackintosh The Bureau of Public Roads was established in the Department of Agriculture in as a successor to agencies or offices within that Department that had provided assistance in building roads in national forests, national parks, and other areas of the national domain since The Bureau of Public Roads, under several successive names, became part of the Federal Works Agency in the General Services Administration in the Department of Commerce also in and the Department of Transportation in (Federal Highway Administration In Congress authorized road construction in national parks, and in the NPS and the Bureau of Public Roads signed a Memorandum of Agreement for interagency cooperation in construction of roads in lands administered by the The agreement between the agencies allowed NPS to utilize the practical road building expertise ofBPR within NPS parameters of aesthetics, preservation, and public enjoyment (McClelland Federal Highway Administration Early design of NPS facilities for national parks was primarily accomplished by landscape architects and civil engineers headquartered in San Francisco Field Office.

Thomas Vint became chieflandscape architect for the NPS in assuming responsibility for the location, character, and quality of all park construction (McClelland Under Vint's supervision, NPS adopted a standard "rustic" park style for design of ROUTE NO. 1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAER No. Page6 buildings, walls, and other park structures. This general design approach was influenced by the writings and designs of landscape architects Frederick Law Olmstead and Frank Waugh and others, in which roads and other structures fit into the landscape in part by avoidance of straight lines and use of native materials (McClelland The rustic approach was not entirely new to the NPS in for example, engineer and historian Hiram M.

Chittenden had incorporated rustic elements in drainage features on roads in Yellowstone National Park at the turn of the twentieth century (Carr For roadways in the national park system, Vint' s staff developed plans and construction guidelines for eight types of rustic headwalls for culverts, including one type for use with pipe culverts The guidelines specified the following: -weathered stones were preferable -no freshly broken stones were to be exposed -round stones were not to be used -stones were to be between 5" and 10" high and 18" and 48" long -all stones were to be laid with their larger dimension horizontal -four joints should not come together -mortar joints should be one to one and one-half inches wide The profile, mortar, irregular lines, and weathered stone surfaces were the most important elements of the rustic look for culvert headwalls.

Local stone was preferred for the face walls of culverts, giving them a camouflaged look (McClelland By BPR had prepared standard specifications for stone rubble masonry culvert headwalls that corresponded to the NPS requirements. The BPR standard headwall designs were generally less ornate than those developed earlier by were created specifically for pipe culverts, and included specifications for straight, winged, U-shaped, L-shaped, and double-pipe headwalls (Bureau of Public Roads 1933a, Culvert headwalls on Route No. 1 appear to have been constructed according to the BPR specifications, with some variation to accommodate local slope and drainage conditions. Construction of Route No. 1 Route No.

1 was part of a broader plan for roads along the Colorado River downstream from Hoover Dam and in the Boulder Dam Recreational Area. Preliminary surveys of these two areas were carried out in and respectively, with a survey of the Route No. 1 alignment completed in (Cassell In the summer of NPS conducted a survey of the Overton area and other areas in the vicinity with regard to making the best use of the area for recreation and historic, archeological and geological preservation (Las Vegas Evening Review- Journal hereafter LVERJ). Route No.

1 was one of several roads constructed in the area beginning in A "very rough and dusty'' road from Midway to the beach at Las Vegas Wash was passable at the end of there were plans for the state to pave.it later (LVERJ On the Arizona side of Lake Mead construction of a road to Detrital Wash was begun before that of Route No. 1 (LVERJ In June NPS announced plans to build a highway in Hemenway Wash near Boulder City (LVERJ Guy D. Edwards, Boulder Dam Recreational Area supervisor, announced on March 3, that NPS planned to construct the Overton to Overton Beach road (Route No. 1). He emphasized the scenic value of the area. The road would open up "a wealth of scenic wonders to travelers," and the beach would have both a bathing area and boat dock.

He predicted that it would "eventually become one of the most popular spots on the entire lake" (LVERJ for construction of the road was included in a Department of Interior appropriations bill (LVERJ Construction plans for Route No. 1 were prepared by the BPR and approved by both BPR and NPS personnel. The road was designed to be constructed in two sections. The 1-A section ran from the site of Overton Beach ROUTE NO. 1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAER No. Page7 through the Boulder Dam Recreational Area and about four miles beyond the northern boundary of the park. The 1-B section was the remaining 2.7 miles into Overton For William G. Carnes, Vint's successor at the San Francisco office, Guy D.

Edwards, Supervisor of the then Boulder Dam Recreational Area, and Arthur E. Demaray approved the plans. Charles C. Morris and J. A. Bright approved the plans for the BPR J. T. Cassell was the resident engineer in charge of all aspects of the project (Cassell On March 15, BPR opened bids for the project construction contract, which had been delayed until the pay rates were established by the Department of Labor (LVERJ 1938a; BPR anticipated from 60 to 100 local hires for the project, who would be drawn from unions in Clark and surrounding counties and from roles of unemployed maintained by the federal unemployment agency in Las Vegas (LVERJ Utah Construction Company, headquartered in Ogden Utah, won the contract to construct Route No. 1.

The company was one of six firms that had formed a consortium to build Hoover Dam, and Utah Construction Company later built Davis Dam on the Colorado River downstream from Hoover Dam. The company also later built roads to Davis Dam under an agreement with the Arizona State Highway Department (ACRE Most of Route 1 was on "easy rolling grades," but in the badlands there were short sections of five to seven percent grade. Above the earthen road grade, the roadway consisted of a "4 inch crusher run base course with bituminous prime coat, a 2 inch Type B-2 Dense Graded Plant Mix Surface Course, and a Class B-2 Seal with 10- 20 pound cover" (Cassell Culverts, dikes and curbs were marked on plans prepared by BPR in (later adopted by NPS as the as-built plans).

Gutters were not indicated on the plans for Section 1-A of the road (including the recorded Route No. 1), but were shown on the plans for Section which was constructed later Construction began on April 22, at the east end of the project, so that the eastern end would be completed before the rising of the lake. After rough grading was completed, pipe culverts were set in place, and headwall and gutter construction was completed "concurrently with work on the major items" (Cassell Two quarries supplied stone for culvert headwalls. The location of the first quarry is unknown, but was probably somewhere near the lake side of the project. The initial quarry was exhausted before a quarter of the masonry work had been completed.

A second quarry located in the Valley of Fire furnished the stone needed for the rest of the project (Cassell By June 24, construction was progressing rapidly on the section of the road within the recreation area (the portion of Route No. 1 recorded herein) and on 2 miles of the 4.5 miles from the recreation area boundary north to Overton. At that date, the prime gravel coat had been laid over the entire roadway under construction, and more than half of the route had been oiled (LVERJ Construction of the road was completed on October 8, (LVERJ 1938e. Cassel A landscape architect from the NPS Branch of Plans and Design in San Francisco inspected the road and found it satisfactory in regard to landscape features. Guy D.

Edwards, the NPS recreation area supervisor, also agreed that Utah Construction had satisfactorily completed its contract (Cassell A. E. Cahlan's column in the Las Vegas Evening Review-Journal promoted the road, emphasizing the recreational activities and calling the area "an extremely attractive spot for those who love the desert" with a "new and entrancing" view of the lake. The beach had not yet been developed when the road was completed, but beach improvement was to follow the layout of Boulder Beach in Hemenway Wash near Boulder City (Cahlan The Overton Beach recreation facility, which was also called Overton Dock or Overton Landing, became a major attraction for area residents and non-residents.

Concessions at the site provided boat tours and charter fishing during the and and a swimming beach was located to the south of the marina. The original cafe and ROUTE NO. 1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAER No. Page 8 store building was flooded during extreme high water in the lake in and NPS built a modem facility in the that includes a store, laundry facilities, and public restrooms and showers. Several movies, including "One Million were filmed in the area, and Audie Murphy, Ben Johnson and Victor Mature were celebrities who visited Overton Beach. Ann-Margaret Cove, just south of Overton Beach, was named after the actress, who also spent time at Overton Beach (Kidner IV.

Project Information This documentation has been prepared at the request of the National Park Service, Lake Mead National Recreation Area. In NPS and the Nevada State Historic Preservation Office (NV-SHPO) agreed that repair or maintenance could adversely affect historic drainage structures along Route No. 1. A Memorandum of Agreement (MOA) between NPS and NV-SHPO stipulated that HAER documentation would be accomplished for features along Route No. 1 prior to reconstruction of the road. This HAER documentation partially fulfills requirements of theMOA. This documentation was accomplished by Associated Cultural Resource Experts (ACRE) under provisions of a task order issued by the National Park Service to Scientific Applications International Corporation (SAIC). Kurt P.

Schweigert of ACRE was Principal Investigator and prepared the second draft and final documentation packages. Douglas M. Edwards and Kurt P. Schweigert of ACRE were the photographers, and Peggy Beedle of ACRE accomplished most of the research and initial field documentation. Melissa Johnson of ACRE assisted in field documentation and photography. This documentation was based in part on three previous field surveys of drainage features and survey monuments along Route No. 1 (Daron Blalack Federal Highway Administration Lake Mead National Recreation Area staff provided copies of plans for Route 1 and other materials.

Additional information was obtained from the National Park Service Technical Information Center in Denver, Colorado; Special Collections at the Lied Library at the University of Nevada-Las Vegas; and the National Archives in College Park, Maryland. Boulder City historian Dennis McBride provided a newspaper index on road articles from the local newspapers. V. Sources Associated Cultural Resource Experts (ACRE) Intensive Cultural Inventory of Bureau of Reclamation Lands in the Vicinity of Davis Dam, Clark County, Nevada and Mohave County, Arizona. Prepared for Bureau of Reclamation, Lower Colorado Region, Boulder City, Nevada. Bezy, John V. A Guide to the Desert Geology of Lake Mead National Recreation Area. Southwest Parks and Monuments Association, Globe, Arizona.

Blalack, JoAnn Overton Beach Road Survey of Route I Overton-Lake Mead Highway Station Markers. National Park Service, Western Archeological and Conservation Center, Tucson, Arizona. Cahlan, A. E. "From Where I Sit." Las Vegas Evening Review-Journal, October 21, p. 12. ROUTE NO. 1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAER No. Page 9 Carr, Ethan Wilderness by Design: Landscape Architecture and the National Park Service. University of Nebraska Press, Lincoln. Cassell, J. T. Final Construction Report, Grading and Bituminous Treated Surfacing on Section A of Route 1 Overton-Lake Mead Boulder Dam Recreational Area Clark County, Nevada. Daron, Steven E. Replacement ofa Culvert Along Overton Beach Access Road, Lake Mead National Recreation Area, Clark County, Nevada.

Submitted to Lake Mead National Recreation Area, Boulder City, Nevada. WACC Project# LAME Personal Communication with Peggy Beedle, Boulder City, Nevada. Edwards, Guy D. Study and Investigation of the Area in the Vicinity of the Boulder Canyon Along the Colorado River in the Northeast Comer of the State of Arizona and Eastern Nevada." National Park Service, Department of the Interior, Field Headquarters, San Francisco, California. Federal Highway Administration Report on Existing Headwalls Built by the Civilian Conservation Corps circa Northshore Road and Overton Beach Road. Lake Mead National Recreation Area, Nevada Projects PRA- LAME & PRA-LAME Prepared by the Department of Transportation, Federal Highway Administration, Central Federal Lands Highway Division, Denver, Colorado.

Brief History of the Direct Federal Highway Construction Program. Internet web site http://www.fhwa.dot.gov/ infrastructure/blazerOl.htm, March 3, Kidner, Cole "The Overton Beach Story." Henderson Home News, Boulder City News, Green Valley News, April 12, pp. Las Vegas Evening Review-J oumal (L VERJ) "Overton-Lake Highway To Be Advertised for Bids Shortly." September 29, p. 5. 1938a "Wage Scale For Highway Jobs Is Announced." January 28, pp.I, 6. "New Overton Highway to Open Scenic Sections, Revealed." March 3, "Bids To Be Opened On Highway From Overton To Lake March March 11, "Plans for Hemenway Wash Road Are Revealed Today." June 24, 1938e "Moapa Valley Notes." October 4, "Midway to Beach Road Completed." December 14, ROUTE NO.

1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAER No. Page 10 Longwell, C. R., Pampeyan, E. H., and Bowyer, Ben. Geologic Map of Clark County, Nevada. Williams & Heintz Map Corporation, Washington, Lyman, Leo The Arrowhead Trails Highway: California's Predecessor to Interstate 15. Lyman Historical Research & Publishing, Internet site http://www.wemweb.com/ arduous- road/arrowhead trails.html, June 22, McClelland, Linda Building the National Parks: Historic Landscape Design and Construction. Johns Hopkins University Press, Baltimore, Maryland. Mackintosh, Barry The National Park Service, A Brief History. Published in Internet site March 1, National Park Service Standard Architectural Details Headwalls for Culverts National Park Roads.

Division of Landscape Architecture, Dept. of the Interior, National Park Service, San Francisco, California. Project Grading and Bituminous Treated Surfacing Route No. 1- Overton-Lake Mead, Boulder Dam Recreational Area Highway System, Arizona & Nevada. On file at National Park Service, Lake Mead National Recreation Headquarters, Boulder City, Nevada. Nevada Department of Highways. Pioneer Southern Nevada Highway Remembered. Press release, Nevada Department of Highways, March 8, UNLV Special Collections, "Valley of Fire" vertical file. Olson, Pat Historical Archaeology in a Rural Southeastern Nevada Community. Prepared for Nevada Division of Historic Preservation and Archaeology. Lost City Museum, Overton, Nevada.

Soil Conservation Service Aerial Photographs of Route 1 Overton-Lake Mead Road, Boulder Dam National Recreational Area. Aerial photographs Records of the Soil Conservation Service, Record Group National Archives, College Park, Maryland. White, William Civilian Conservation Corps in Clark County, Nevada: An Historical Overview and Context. Harry Reid Center for Environmental Studies, University of Nevada, Las Vegas. Works Progress Administration (WPA) Nevada: A Guide to the Silver State. Portland, Oregon: Bindfords & Mort, Portland, Oregon. ROUTE NO. 1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAER No. Page 11 VI. Reduced Copies of Measured Drawings U.S.

Department of Agriculture, Bureau of Public Roads Project 1-A, Grading and Bituminous Treated Surfacing Route No. 1- Overton-Lake Mead, Boulder Dam Recreational Area Highway System, Arizona & Nevada. On file at National Park Service, Lake Mead National Recreation Headquarters, Boulder City, Nevada. ROUTE NO. 1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAER No. Page 12 -. - t: ro ::I - ::I - 00C)(I) HIIUII l ~ I ROUTE NO. 1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAER No. Page 13 t: ._ C Cl) <D 0 > .x: (l) - - 'S OCIC)(I) - 11 II II II ROUTE NO. 1 OVERTON-LAKE MEAD ROAD (Northshore Road, Overton Beach Access Road) HAERNo.NV-40 Page 14 ?,j zO ~~ 0 ~z0 ~ . ?,j 0 0 p. ~ 0 ?,j < >-3 .

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Arizona&. Nevada

Projed I A, Gradil'lg &. &ltumirurua Treated Surfacing LC.lass 8) (Sta i30t;!'J - Sta. t 00} l:IOFLDE.R DAM RECJ\F,AT!ONAL ARM ~ / ,=, -~ 1', ,, / \ ,.' ' ,\ ," ) )..":II. Crmdl'uct@n !kriwtM, ~ 20 o C \ I, ( 9- tri PRF.J'ARED IlY ~z us.m:PARTME.c'iT OF AGRICV!,TURE BUREAU OF PUBLIC ROAD$ <i0 l .0 A .&.PP>ROVt.D U.5.IMttAl.f M" !"U&l!(tw.>A!1$ ~;; INIJEXMAP Gnido!'l9t.~,ni-~ll1 &K<'{,:.isi~!l~r9:>7 ~& Iij} [< u l:Ii .$.1'.A\.Iffl,., L nwn ~ ~.-r.:o M11e, APP!10.VEO W.'tiO!ifll. PAA:11.. s t ~ ~ cl (I> 0 It'"' I /t. i::) I sZ o;j ~ (I>~ > ~ l:Ii ~ >m United States Department of the Interior, National Park Service zg> 0 (I> '"O ~ V Plansfor Proposed Project 1-A, Grading & Bituminous Treated Surfacing Route No. 1 Overton-Lake Mead, Sheet l of 25 c& - Pl 0\ 0 t:l C: > .., ..

,~~ Md!iniUt'/1 GRADING S.:CTION ,'"oa' cl ..,i<;pe &dtfifl~ !kfer14! t:7do/$k })$'~~-,ff.molt .S2fJfoti lfrwiw<1i7 eel fJ/ Shi(~ f:J!f{)I) t3.eki;,he"i.r!k;,,~ t~ cw' ,Sigi1Ui?s- ICJ--r TYPICAL HALF SECT ION SHOWING METHOD OF FILLING FOCKE.TS ABOVE. EMflANKMENTS #','!,:,.re NJ~ cul slope !er,9M /s it?S"!.i Ihm; S fee' the /"!"e-:J/tr;l:Jrrl sti.:ff! b'9 a,z;;:,t,"ed fhe foll d,.<sfo,,ce -c 1;'.;b/e /IN/ c;,;:i slopt? om.t &x- tend rd a:I :..:uf.s!,7,{'* '-':.Slwu!#nW1;n/rtu1i ' \&xrif/1 i&,,/;.'M i;;,se=t:$0.ttWl!f~ :;fop,;;. r,~u'l';r,/e.:f ::; ,n:c,vdar1-~e w:i.'"- f};e Mse~~ Bffl.iMfNOUS S spec.,flcr:thans. ~ ~ , # , - 2 - r ~ ~ P!Mit SurrM<t "~Jm;/1;,titr,g .5?e:/ ~@ m- a'!p,:-1..'fJ.i u,;. &ue Ce,,Jr;r~ ffon Co{jr.w w/#i. 9?0Q"1/IJ.fe/.,d~ 14/e>-tifl'" 1fi<:h~cffl"dipr t.. - .

.?.rt2fu'!?., ... S-LOPE TREATMENT IN EARTH CIJT5 .~ ... SHOWJNG ROUN0H'4G .&. Fl..ATTE:N!NG Qr- UPPER &. LOWER CUT SLOPES (Jrl'i:.:Ha.r rMimmum clearing bac/<: evr stcrlON ste;TION OtKE.. ,( It, i -al cuf .slop~ Sfa.46() .st.,,S.JO - * d , " / i . l ! : ~ ~ (t:s~ltt:JJ,IWf}Sbg ~it~-: ~ sklliM.S 4t.Rt&.Jl:J~.ef=~ ~"* '?f!!r,l.tt"Ye,'r ~ . beyond 0 zOC: SPECIAL tl/lA- TlltATMEm- s- 51 Mil1imtm9 ckar-1nq her mti 0 ~ M ,;,,;;~f*Y(m(I {fO(ff of" l:<tid Ripr-ap ~z0 - . fiMd.

Typical Section for Diversion

DiTCHES & DIKES ~- OF."" ""ne.w. fi;" Af;;;>.JC\;~"!"iiW: Btifff.AIJ Of f'\JBU:. l'IOAOS 0 0

Standard Cross Sections

Ill< _t :!!:Jf3!Efrt-!l:!:.,. NATIONAi.. FOREST & Rol\RK H f ~ _p. tT1 be SCAL I' S PT!!:'.Mef.P. iG, ~de,.:,'//!- l!Ki...'>ft,?q t;'::,;~nt1;ri~orfr~1: : TYPJCAk S.:CTION SHOWIN<. material, 0 hr; Nw tr>gfneer. cl HANO RIP RAP TYl'lCAl. $8'.0TION _$MOWING =r~J:tffiA~1~~rr,R~~ ; 0 MT - ~ M - Ud'OR ~ DIP ~,1.1fli&'",i>;Jfr'Jlch,:,,M. TYPlCAL SECTION F'OA GROUTED GUtTER OOU...OEfl DAM Rtef\ ATIONAL AREA. : ;. z . . .~ ~ ~ ~ . y i . f , ~ l f l . t - ~ ~ ~ ~ M . d . c v ~ .. --------u 0 I __ fefd t:::I t-< >- ~ ~ g; tT1 ::r ~ tT1 : >- United States Department of the Interior, National Park Service z g >- Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing '"O? ~ t! Ill z : Route No. 1 Overton-Lake Mead, Sheet 2 of25 ~ < g, 0 - .I,. Ill >- -:i o~ t! PARKIN6 AIUA if

Typical Cross

SeOTION PARKINS AREA STA. STA. - .J:lop~_(J_..Pt~ 0 sl@ I J w~A~1- ~ - ~z 0 0 - TYPICAL CROSS SECTION l'"Olt PARKIN(I AREA STA. 6J4;()0-STA. cil . Pl ~o< tr:I ~ cl (D0 ~z 0 I PARKING AREA CROSS SECTIONS ::, ~f~ ~ United States Department of the Interior, National Park Service zg 0 (D g'l tl Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing Route No. 1 Overton-Lake Mead, Sheet 3 of25 ~ ~~~ - 4.. Pl > DETAIL OF QUANTITIES FOR SURFACING AND ROADWAY EXCAVATI

Summary of Crusher Run Surface

Ca.Jl?SE FOR BAS 4 Inches (Compacled} Crvshed 6rav!fJI Base.......__ _ 2 inches (Compacled)Croshed tir1Jvel /or S'/){)v/ders (UnlrilileilJ_"'.:__ Crvshed 6ra el for l)i/rtJ.r..... Tola/~~ M: ~ Tons SUMMARY OF TYPE 8 DENS PLANT MIXTURE 2 inches (Compacled} Plan/ Mix ?O 'wide________ . '3j r ~ Plan/ Mix fbr paving dikhu in and dlke:s. ~ . Plant Mix to be SiEiffJI' if ~Tons SI.JMMARY OF UNCLASSIFIED EXCAVATION Dikhe.r Included in ~ " [)iverskm [)J/ches______ , -- -- - -- ---.J/J.,i()____ ~ zO 0 C: Inlet Md Ou/le/ [)ilches____________ . .. .. i/!;!Slfli Rovnding .J'lopes___________________ _ . , ~ tri ~z 0 0 Approach . ~ " SubQN1dinQ.

~ " ~- Ovd/1-t,rel'!II< ___ 6' 0 Tolalff/4,!i.Z:Z~ Ill< m 0~ < >-3 G Q s~ ==i r' >~~ m ~ > Eil United States Department of the Interior, National Park Service zg> 0 G >-c:i ~ V Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing Route No. l Overton-Lake Mead, Sheet 4 of25 <& ~ ~ ~ -./:,.Ill> \Oo-eo TALBOT SPIRAL I vseo i ON PROJIXT ~ I ,,. BOULDE:R DAM \ RE:CIIE:ATIONAL ARE:A I; r -P. t!.I ', ~ ~ i II :: .so~ ~ ! I sxercrt or@RAva PIT"St7l' ~ 1fem,,,-.<:/l,,f" ~ ~!,>iN ~.u~tmv ~ o . . . . "' tf zOC i't; 1' ; t,, .. g. ~ , .r ' ... ~ ,,. 11 : ~z 0 0 ~ \.' ' '~' i~t iq ~, ~;l .. ~- lj~ " "I . "':ot ~'II v~ ~ ;il g, ;; !>) < ..,i~? ,~fi~~ '~" ~ . ~:~ . ~~ p. ,~ ~ ;'~ l.auS3 . ~ - .;sse (P .i . .- .. ~ ... A. A ::I.

z fl /~ .t ~- - t 0 I ~ r' t;o > ~i~ ~ > s:: zn United States Department of the Interior, National Park Service 0 8 > '"O ~ ti Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing !>) z~~ Route No. 1 Overton-Lake Mead, Sheet 5 of 25 ~ <0 0 N !>l > oo-St:i 71~~~7::m~t:fi, 0 sh ;l 0 ~z0 @ 0 0 p, < p.. trl (D 9~0 ::I,. z 0 I ~ ti:i> ~~~ trl ~ > trl United States Department of the Interior, National Park Service zg> 0 (D H Plans for Proposed Project I-A, Grading & Bituminous Treated Surfacing >-o ~ ~ Route No. 1 Overton-Lake Mead, Sheet 6 of 25 (D < 0 0 N p, ;J> / Sta i!MfS() ~ . c.4-an ~~:lr.3/oaJfpiAT e"',w,7 ,i / ' .! '"' BOllWER DAM R Cllt:moNAL AREA " / '"" !. B ,';I l'i" c,; tieK dusei#(f ,'$:pare VJ -Sauf;'; lfdiY/ CUP :ity)' U.Skr.

?.!Of.6:5 ii; '~ ~' q_ 14 4{) Ji2f *- ~s- ~- :. :;d ~k- ~ ~. ~ .; ~ ~ ~ SJQ ~ o ' zOe ~- ~~ f'-i ""' &~ iite.;'* ~ ? ~J r~ ~ .f. 190 ~'! =-Q 0z ~~ ~:. (1) i.'J8(J ~ti ~ ;; ~< ~tI1 6 ' . : $. 0~ ., J ,;w ~ 0 sZ United States Department of the Interior, National Park Service ~t~ :;d > Zn tI1 ~ 0 ~ > Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing .,, . ~ t) Route No. 1 Overton-Lake Mead, Sheet 7 of 25 (1) <0 0 N p, ;J> N 08 t) OAM RECREAT/OflAL AREA 8()1.JLDER DA,11 RECfrEA~1NAl. AR A t- - - - 4-a7~-?c.., A'-1400- L. . ,p' -~ =''::..o--.!-"' . .!1 :c =. ""' :t~ li ./ ~ ! <) t{ _;; zOe o;::?.. ; ~i ( 4' tTl ,; :,.:i:.:r~ ti ] ~~- l~ g-Z ii, 0 '~~ ~ , ~ (D ~- ;tY ~ 1;1 t :;:o- ... "'"'i~ 0 0 ~ " ~< utTl 1Ci:1-' .Ac: QI. iii,. hiih.(.M'Pfij. -~ ~i~~'~ (D 2~0 di !

0 4 S Z:W I Z 4 9 MO - ,., 0 zI r' t:c > (D > ~ tI1 tTl a::: United States Department of the Interior, National Park Service 0 (D> '"d ~ t:I Plans for Proposed Project l-A, Grading & Bituminous Treated Surfacing ~ Z:,;,:::O Route No. 1 Overton-Lake Mead, Sheet 8 of 25 (D < 0 0 NI Ill> w238t:I / BOULDER !)AM RECREATIONAl AR ,4 ' ~ .l ~ ~ .il!.. ? !CF T 1,, NO.! PLACER MINING CLAIM ',, -'""i./)1 .se,fs,u; lZ NO.! PLAC R MINING CLAIM ("t'#NJC?ion SjMNE.j.SIJ':.; rz HcwT~,:,J~~ifAf<U..U~ o;\,),..;; jj; u.Jj,ii,;f '' 1l ' t.. 8. Nf ?S ifN". r.fi~1 f'to,"/,:,t(}pl,(f$.~{? 1--~i~ 75' l!'I Sto. i!8iJf 75 ,7D f} ~ f~""sit"i' 11 :; , ;i ',: ,t ~~! tiR'< ,1 t! t! ~'" ~ :i ;;i.~t ~t ~% ~ ~ '''It' ' 'fi.y~ ~ ~ ~- ~' :;" ~h ~~\ ;;:,,Ji 1,h ~ ili ~~ )_ ~ -~- i!

~R E --- E ~8 ~'1 ui ~:n s- ;l : , z !f> h') 1 Q (I) 0 ~ I / ~ I,, ,,if/ ,,.,"'-""'-'i=":'=;:i,P'= 6'o< exc. $1# ,, tr1 ~ ~~ (I) 0 1:. J 4 6 7 e .9 .J efe z7a 2 sZ I ttJ ~g~ tr1 g. tr1 United States Department of the Interior, National Park Service zg> Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing "'~~o cfci Route No. 1 Overton-Lake Mead, Sheet 9 of 25 (I)< N .i:,. ~ 6' >0 .i:,.o~O ~ ./ ,"' . ,@" ' )/ ~ , ,'Ira .f.!iJfS<J Rem(:,."(,!, r.'.'FWI f / ,w ~ . I tit\~ 1<; \~:'i4050 ~ i'' .Ji ~ j e ' "" 80/JLDER DAM AREA ,~ L t?! /ev C.'lt!leill! ~ M S:,uffl &xi ,if U. 9!o Z!O-f:6S (!i-5:i?. ii; 1:.i.o ls Ji; ; " t~\ ~1 ~" ,ua @ i ~U1ii ~.i ?O 20 1 ~'~ ,,~'lO ~ lSJO Z " o C ~ >-l iu1~~ . I 0 . ;11 P'" 6ui - J . , i' ~ ' . . . . . --- .. ~. :~ 0 :q~ ! ~z0 cil .

!fig.hi / < " . m.. 1g .., Q ~./5.<JO "'~ . ,.. .,~z-o ,. . ,.~ ~22 ~ . ~i~ , :.s;.so Pl ~" vo" p.. 0~ (ii 0 f 6 ?.. p :; . 4( ~z 0 I co > ~~~ P'" ?O > Erl United States Department of the Interior, National Park Service z8> !=' ~ 0 Plans for Proposed Pr~ject 1-A, Grading & Bituminous Treated Surfacing z C/l ?O Route No. I Overton-Lake Mead, Sheet 10 of25 <& < io >I p) N Vl ~50 BOULDER !)AM RECR A71Q,NAl. ARl.="A - !/;"ii --- _e=.t. i.- """'''7(J(i :fA,; /(;iJ.:; ~J :0 ( o zO:;.;;e ~ f;! () ,, S' ~ df 0 :~ ~z0 / al . ? ~ :; ~t 0 0 Pl < ;-& 'i'' p. l:I'1 /f;J:J;.Cotc,a..~. .'ifd#::.CU.1-t/!J. iX)~4h. (I) 9~0 4 ,,, 5, 7 e !I ~ 2 .1 4 6 .. 240 -~ 4.

2~Z ~z 0 I :::i I:"" o:J > ~~~ l:I'1 p" :;.;;~l:I'1 United States Department of the Interior, National Park Service z () > 0 (I) '1;i ~ V Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing Route No. 1 Overton-Lake Mead, Sheet 11 of25 ~ < 0 0 N Pl > O'\ 0 .e tJ / BOULDER OAM RECREATIONAL AREA / ~ ~~~ / '\ ', / / / ;,, : .'J.r!O' R f6DO' T :.-.no.:,i SILICA' NO.

Placer Mining

Ct..AIM ii' NO. I PLACER MINING Ct.AIM Cr,,,*'l'!W#r.-.,,A'~,<Ms~ i ' Hw: TJ,e Md~ m ~ ui/j,1#f:>&llt ' ~ .~ i~~~;~;r-?1 ) ,;~ &1. ~~ :; ~;t i690 ;:~ ;i ,rx ~~ ~ \. ~ 1! ~ t~ ;l~ IU!O *' ..; ~ - ' m: ~ ;l t ~ ~ <\/ ... ~~ ... E ?O t 20 ,;, ., if.:{1) - o C g. tri "'z i630 ~ l~i so ol ~ ~o ~ 4 4t>,7.f..irJ Pl < . .:; p.. tI1 ; ' .., 0 0~ ti ,v 6 6.5 ~ 0 6" ff 8 ,;,:.?O R. 7 fJ Ms 8'::::i r-z t:o >- ~~ ~ tI1 ~ ?O >- Erl United States Department of the Interior, National Park Service z0 g >- '"O ~ '-' Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing P>Z:,;;?O Route No.

1 Overton-Lake Mead, Sheet 12 of 25 (I) I < 0 0~ N 4>, g_ O ' - ' ~ SOULl)ER DAM ''\ ~ RECREATIONAL AREA M ', ', :::ac:g;, ~ '"-~:,~,a.~ ~ ~~ i " ~ l "" " \ " "" "\\ " I/_,-"/ I , I I r '-, , I 8JR!ICW PIT /!JIJC'RJgllt d.~ I 'I I ', I '- '- . BOULDER DAM '/. 20 o C s- ~ ~z 0 0 <il 0 0 ~< ~tr:I o:;,;; < >-3 (D 0 ::I. 0 zI ::i >- ~ ~ ?;J tr:I >- United States Department of the Interior, National Park Service z g >- 0 (D '1:i ~ V Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing Route No. 1 Overton-Lake Mead, Sheet 13 of 25 ooo~O BOULDER ~ RECREATIONAL / AREA ~\ J: 20' T lv -~~ ... ' # / 'il "" // IJOULO R

Oam Recreational Area

Cinwtt!IW!Jlf fkriwlM ~ ',' SILICA NO.I PLAUR MINING CLAIM Tfm t;,\(Ji1/!/&1t ~llfi 9e-,Jii> M ~ NJ ;,F J~ !,? / ,u,:, 11,1!,je<,t ffl '11 ii1!M< . ~- /, t: tiM. 9 t:."iEK $7 . '!: tJ.MtP.JiCktv. i5T!M S;.l/i';e tt 80 .W' SAF. ,.fi:JO i,i ,. ~Dip. l ~ ~~h'INtfr. 3/dtoitb ' ~! ~ 5.9:..U :t ~-'i ~l 1l ~ j, ! % t; .; ~<~ ~ ~ ~~J = j;5zo l!l ~ l~i ~i t~ ~ ~l! ~! 2 "' ~." /6iC 0 ~ ~-ii~~ S' tri . . . ~7,.i. . ' i {l~ ~ ~z 0 0 ~~i~ cil . ,,..'i)!s, - fl~ ~;; :,, < .. ?- z~: /~ iSZ~ _____.i_, ..f!..7..!..i..l..- ~ cl Ht.Air: ~ ee<. J ,; i:.90 i!33 4 255 4 .:Ji!) 3/4 a. B . ~ ~[~ :,;;>a:: United States Department of the Interior, National Park Service zg~ 'i:j? ~ 0 Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing ~ Route No.

1 Overton-Lake Mead, Sheet 14 of25 (1) < 0 0 N > -.ooeo ~ '' 801./L{)ER DAM. R CRE:ATiONAL ARE:,( <>= ~ / ,. ' i~ ,1 !~ i: i.';: . . . . . . . . . :,q =~ l!OVL{)E:R {)AM l?..CCR[A 710/VAL AR A :,i e*.7. ,; ', fl~{n;,i/k,,,:.,,Jcmi~ i"f T,'},I i;l>gn,ll#JHJ M(/ m< ~ t: e..41. ,v~ .Ji /:/ : m t~t Ha. .J''4a ~otJ i l: ~' d ;;? ~] ~ 20 o C 0 0 @ . ;i;;- 0 0 Pl< p.. tTi 0~ < >-3 9 _$ (1) 0 ti:i> ~i~ ;i;;>s= United States Department of the Interior, National Park Service (1) z0 g >tTi >-o ~ ti Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing Pl ;i;i Route No. 1 Overton-Lake Mead, Sheet 15 of25 <w < 0 0 w l.. ~> 0 0 '-' ti ~ !) 11 ATIONAt ARCA ' OAM i>~~ OAU R Cf/ ATIONAL AREA t w~; ~~ ~ 20 o C s- ~ ~z 0 0 @ \IS':JJ ~- 0 0 Ill< p.. t'I1 kSoJd~ .. it ., ! ,t .4 -1M J . !!# ..

~ cl (I) 0 gZ ~ I t:o I:""' t'I1 P" s; ~ United States Department of the Interior, National Park Service z8> Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing ~ (I)< 0 Route No. 1 Overton-Lake Mead, Sheet 16 of 25 \;)I!>)> -~E;t:J 4 " BOULDER DAM l/ CR A7!0NAL AR A n,-,.o-co, ,,, 7"4oeo r , /. / ,,: j,f BOULDER !)AM A TIONAL AR A -~.,,,,.<?/WS/wwJI I IJeTtJ; Tiffl rMd g!-6.de ~ ~ ill't w . , ~ . : x~ /iii40 tJer/. 1r .m :'Sf1;rtre , .Mi.Lt., Sit ,;p ' ea '' Mie/f .#Cu >'fi iS90 ~ z8 0 /ffO: s, ~z 0 0 cil 0 0 ~ ~-< p.. tT1 ~~ ~z 0 I tD > ~~~ tT1 ~ ~ > tT1 United States Department of the Interior, National Park Service zg> "'d?~t;I Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing ~ (D Route No.

1 Overton-Lake Mead, Sheet 17 of 25 0~ < w ~ > No8CI '\ \~) uJ \ BOULDER DAM /.Soto 0 . tI1 0 ;. 0z @ /4/JO - 0 0 Pl < p.. tI1 ~ cl ::I. Q zI ~ r b:J > (1) > ~ tI1 tI1 > tI1 United States Department of the Interior, National Park Service zg> Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing "t:I? ~ 0 ~ Route No. 1 Overton-Lake Mead, Sheet 18 of 25 (1) < 0 0 w .i,. Pl > wocO ~) ~~ .. " \ DAM iS.50 /:3 1$:Ji} ~ 26 q o C ;:i_ >-l ,, $; ~ trl "~ P" z i:l 0 f (1) ' ;; ii ;;,;:i- 0 0 po < F- trl o?O 4 405 < >-l (1) 0 sZ ;:! ' ttl r > po i1'i> trl & trl ;;,o > O trl United States Department of the Interior, National Park Service 0 zg> 'i;j" "'ti Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing ~ z"' ;;,o Route No.

I Overton-Lake Mead, Sheet 19 of25 (1) <~0 w po > +'-ocd :,0 ,--._o Zc 0 s, ,-JtI1 0 0 @ :,0 - 0 0 Pl < tI1 0 :,0 < ,-J (I) 0 ~z 0 I =i r to > (I)~ > ~ tn tI1 ~ :,0 > tI1 United States Department of the Interior, National Park Service zg> Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing ~ u Pl z :,0 :,0 Route No. 1 Overton-Lake Mead, Sheet 20 of25 <w < 0 0 Pl w > u, oc u ?-' 20 o C >-l tI1 0 ~z0 ~ . ?-' - 0 0 I" < p.. tI1 0 ?-' < >-l (1) 0z 0 I :::I r-' b:l > (1) i"i > ~ tI1 tI1 ~ United States Department of the Interior, National Park Service ?-' > tI1 Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing zg> ~ tJ Route No. 1 Overton-Lake Mead, Sheet 21 of25 I" z ?-' ?-' ~ < 0 0 w .I:,. I" > O\OCt:J BOU!.!) !? DAM R CR AT!ONAL fAR A I t f fJ!

r iJ~i I !ii ;~t i4.~ h tl-i~ i"/-70. n ~} o zO:,:,C ~ ~ ~ st ;l "~. {~~ 0 ~z0 ~: ,, al . g, ; Pl < p.. tr! 0~ ~ 0 ~z 0 I ::::i to > ~~~ tr! p" ~ >m zg United States Department of the Interior, National Park Service 0 (1) > Plans for Proposed Project l~A, Grading & Bituminous Treated Surfacing ~ tJ ~ Route No. I Overton-Lake Mead, Sheet 22 of 25 (1) < 0 0 w./:a.g.> -..Jo,._,t:J . i!,Ql/tfHUi l>AM llCCl?CArtONAL .Al?liA i R IJA.M RECREAT!ONAJ AREA Th, mrl fi"'Jife w J.. Cf1Mln;cmPI lmmatlfl ~ 1t~ ~ m z e /II. ,yr 56 l'Ye;., .JS L.' S.At. i:.lfJY.. tJ6i.28 l' 8.M N'!i8 le~. ,)'>tm'ii?i!."xi',".M,,-() 'fl i~J(?. Hid> 7S' Rf ?.i'P'/. ... : l~' ~ ~ ~ ~ i 1 ~t ~ ' .ll < '" !.NiO: '!i ~ " -~ ti "\. ~- )S 'J <; "": <4-"'.i ii ~ ~ "i~t h" i.J"!tJ ' "I; " ' ~ :,0 1 ~ i~~- ~- zO t~ . ""1 ~.

~t~ ~~ o C /,!JQO ,: ~ ;: . sl tri ~~( ~z ib 0 0 cil ~~; :,0 - 0 0 ~ Ill< p.. tI1 4 55S 6 7 q ... f . z 575 ~ cl (I) 0 gZ ~ r-< ~~~ tI1 :,0 > i,3 United States Department of the Interior, National Park Service zg> 0 (I) H Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing >-o ~v z Route No. I Overton-Lake Mead, Sheet 24 of25 (I)<0 0 :> ooo8t:J i~N~::v Et,,, oeo "rowble 2 ', ./1 ; Aken Wai& L/ne . ' ( i:: ?:' ~ ,. ,: ,. ,s'"(}'-i "' ' " '.. ,L~I" ,y /.UO::\ ~00 l2U ENti OF PROJECT ~ 7 "~ t:Jec Proiwb.~ -17 H&ier l.en,l /t I .. t' ~ ~ I . ~' ,!- -;' o zOe i ::I- >-l ::r tii ~ !/ 0 ~ I ~z0 I ~- 1 ''le.v. l!:<f:O. P.trJix:;hie. J;.o,-,, #'Jter /.f,i.ve/ 0 0 Pl ~-< p.. tii ~~ ff~ --- I I ;ti_=;: -- 0~ 57i}f.:, .6 i 7 } 9 . W>I(.' z .J -?

,ls cil 0 ::I- 0 z I i:i I:""' ~,~ tii ::r ~ ~ ~ tii United States Department of the Interior, National Park Service Zn> '"O!=)~tl Plans for Proposed Project 1-A, Grading & Bituminous Treated Surfacing Pl z"' ~ Route No. 1 Overton-Lake Mead, Sheet 25 of25 ~ <~0 w Pl > \Oo8tl