Boulder City Historic District

The town built to build Hoover Dam

Boulder City Historic District, listed on the National Register in 1983, is Nevada’s largest NRHP listing by building count: 514 buildings and structures at designation, most of them constructed between 1931 and 1942. The district covers the original federal townsite planned to house workers and administrators for the Boulder Canyon Project — Hoover Dam.

President Calvin Coolidge signed the Boulder Canyon Project Act on 21 December 1928. Six Companies, Inc. won the dam construction contract on 11 March 1931. The townsite sat on federally owned land retained by the Bureau of Reclamation as the Boulder Canyon Project Federal Reservation; federal rangers enforced law on the reservation. Housing went up in 1931–1932 for Reclamation staff and for Six Companies executives and dam workers. City Manager Sims Ely began issuing commercial building permits in 1931. The dam finished in 1936, twenty-two months ahead of schedule under construction engineer Frank T. Crowe. After twenty-nine years of federal control, the Boulder City Act (1958) transferred roughly thirty-three square miles to a new municipal government; the city incorporated in January 1960. Reclamation kept facilities needed to operate the dam.

City materials call Boulder City the first fully developed experiment in twentieth-century new-town planning in the United States — a government-built community on a planned street grid, not an organic boom camp. Gaming is prohibited in Boulder City, a local policy that still separates it from the rest of Clark County’s casino economy.

Streets and key buildings

Seven main streets are named for the seven Colorado River basin states: Wyoming, Colorado, Utah, New Mexico, Arizona, Nevada, and California. Denver Street honors the Bureau of Reclamation headquarters city. Nevada Way (formerly Nevada Highway / US-93 through town) remains the historic commercial spine between Buchanan Boulevard and the truck route.

The Bureau of Reclamation Administration Building (1200 Park Street), completed January 1932 on the high ground north of what is now City Hall, housed the chief construction engineer and staff. City Hall at 401 California Avenue was the 1932 elementary school, built by Reclamation with Six Companies funds — brick patterning and red clay tile roof, later restored toward original appearance. The 1941 high school at 900 Arizona Street is now the Parks and Recreation Building. Commercial blocks from the early permit era still face Nevada Way. Residential neighborhoods hold Reclamation, Six Companies, and power-company employee housing from the dam years.

The Boulder Dam Hotel and the Boulder City/Hoover Dam Museum interpret the construction era; the museum and city promote a free self-guided audio walking loop (WALK BC) of about one mile through the historic district starting at the hotel.

Visiting

Boulder City is a living city with local historic-preservation design review in the district. Public streets; private homes and businesses. No district-wide admission fee. About thirty minutes from the Las Vegas Strip via US-93; Hoover Dam and Lake Mead National Recreation Area sit immediately east. Summer temperatures regularly exceed 100°F — plan outdoor walking for morning or evening. The city publishes an interactive historic-district map, exterior design guidelines, and the 1983 nomination volumes through its Community Development pages at bcnv.org.

National Register listing and local historic district rules affect exterior alterations; they do not open private interiors. Growth-control measures and large city-owned open space around the developed core are part of why the 1930s town still reads as a coherent planned community rather than a strip suburb.