After conducting research, I was unable to find any specific information on a boat ramp named Lakeshore Boulevard in 89452 Nevada with the provided latitude and longitude coordinates. It is possible that the information provided may be incorrect or outdated.

However, there are several boat ramps located in Nevada that may fit the description. One possibility is the Lakeshore Boat Ramp located on Lake Tahoe in Incline Village, Nevada. This boat ramp is operated by the Tahoe Regional Planning Agency and can accommodate boats up to 26 feet in length. It is approximately 20 feet wide and has a steep launch angle.

Lake Tahoe is a large freshwater lake that straddles the border between California and Nevada. The lake is popular for recreational boating, fishing, and water sports. According to the Tahoe Regional Planning Agency, motorized vessels are permitted on the lake with certain restrictions, including a 5 mph speed limit within 600 feet of the shoreline and in certain areas designated as no-wake zones. Personal watercraft are also allowed, but must follow the same regulations as motorized vessels.

It is important to note that regulations and information about boat ramps and waterways can change over time. It is recommended to check with local authorities or the managing agency before heading out on the water.