RepairGeneralEditorialsMy First Experience with an Inspector
Randle Emmrich
Read MoreI was 23 years old and eager to make a good impression on my fellow colleagues, my employer, the owner of the project, and the inspection staff…
RepairUndergroundGeneralTraffic Repairs Using Low-Dust Shotcrete Material: Monitor-Merrimac Tunnel Project
Thomas Brennan
Read MoreHistorically, the dust associated with dry-mix shotcreting caused hesitation in projects in urban or live traffic environments; however, recent innovations in low-dust materials have significantly changed planning considerations…
RepairStructuralGeneralLessons Learned on Spillway Shotcrete Overlay
Billy Roy, P.E.
Read MoreThe original Request for Bids specified that cast-in-place concrete be used, with no substitutions provided. After multiple site visits to better understand staging and access, debris removals, and placement logistics, KISC began to develop a value-engineered approach involving the use of air-entrained wet-process shotcrete to replace the cast-in-place specification…
RepairGeneralBlue Plains DC Water – World’s Largest Advanced WWTP: Sewpercoat® Rehabilitation with Dry-Mix Shotcrete Placement
Sam Zakeri
Read MoreMaintaining wastewater infrastructure is essential for public and environmental health in our communities. Treatment plants collect effluent from nearby areas and treat the water before discharging it into local waterways. DC Water operates Blue Plains, the largest…
RepairGeneralMath, Science & Shotcrete – 2024 Outstanding Architecture | New Construction Project
Ryan Oakes
Read MoreThe repair was at a Middle School in Holly Springs, NC. Summer break had already started, so the situation was urgent: They needed a solution before school started back up, as one of the challenges included repair locations not just on campus but directly adjacent to class rooms.
RepairStructuralGeneralGoose Pond Dam Improvements – 2024 Honorable Mention Project
George Machikas
Read MoreThe rehabilitation of the Goose Pond Dam was initiated by the New Hampshire Department of Environmental Services to address significant leaking of the dam that threatened multiple downstream towns. Improvements included flattening the downstream slope, updating and improving the seepage collection system along the downstream toe of the dam…
RepairStructuralGeneralIce Harbor Dam Rewinds and Turbine Runner Replacement – 2024 Outstanding Infrastructure Project
David Graham
Read MoreIce Harbor Lock and Dam was authorized by the River and Harbor Act of 1945. Constructed in 1956, the project includes a dam, a powerhouse, a navigation lock, two fish ladders, a removable spillway weir, and a juvenile fish bypass facility. It provides navigation, hydropower, flood risk management, fish and
RepairInternationalGeneralModernization of the Water Treatment Plant in Poznan – 2024 Outstanding International Project
Wlodzimierz Czajka
Read MoreAccording to the available documentation, the Iron Removal Building and the Rapid Filter Building were both put into operation in 1943, built mainly by prisoners of war from various nations.
RepairGeneralHemlock Reservoir Dam Improvements – 2024 Outstanding Rehabilitation & Repair Project
George Machikas
Read MoreThe Aquarian Water Company of CT authorized the repair and resurfacing of the Hemlock Dam. The dam, commissioned in 1928, is about 2 mi (3.2 km) from Fairfield, CT. Size is approximately 1100 ft (340 m) long and 75 ft (23 m) high.
RepairStructuralGeneralThe Diversity of Shotcrete
Clint Jenkins, Jason Bossier, and Joe Swann
Read MoreIt is truly paramount to recognize the diversity of solutions available because of the versatility that shotcrete offers. Shotcrete placement provided more efficient, sustainable and durable concrete solutions in these two cases than could have been achieved with a form-and-pour approach.