Upgrades to Meet Plan Improvement

Following our 1989 completion of a Master Plan for the City of Fayetteville, MWY was contracted to provide engineering services for a major water transmission line from the Beaver Water Treatment Plant to the city. The design included significant distribution system improvements, including 12 MG of water storage.

The overall design report called for the design and preparation of plans and specifications , plus construction supervision, for the installation of 51,000 feet of 42-inch water main and 9,000 feet of 36-inch water main.

Modeling for Rugged Terrain

Rugged terrain, extensive rock excavation and significant variations in pipeline working pressures were major challenges in the construction of more than 50 miles of 30-inch and 24-inch pipeline for this transmission system. The system serves the cities of Eureka Springs, Berryville, Green Forest and Harrison as well as several smaller towns, rural water systems and improvement districts.

The system is extensive, completed under four separate construction contracts. The first two and final stages were laid using ductile iron pipe; the third stage comprises prestressed concrete cylinder pipe.

Before the final stage was initiated, our staff developed a computerized hydraulic model for approximately 47 miles of transmission mains in order to evalvate the system (including the mains), an expansion to the water treatment plant and a recently completed booster station. Since the early 1980s, MWY has used computerized modeling software to accurately simulate and analyze the complex dynamics of water-transmission systems.