How long does raw shrimp last in the freezer? Properly stored, it will maintain best quality for about 3 to 6 months, but will remain safe beyond that time. The freezer time shown is for best quality only - shrimp that has been kept constantly frozen at 0â will keep safe indefinitely.
Retaining Wall Cost. Poured retaining walls with elaborate curves require complex formwork and will drive up cost for a wall. The total cost to have a concrete retaining wall installed will be a combination of material and labor prices. For a basic wall you can expect to pay between $30 and $40 per square foot.
1 Hiring an engineer to help design a retaining wall can run about $200-$500 or more, depending on the complexity and extent of the project. 2  Hiring an engineer is strongly recommended for walls over 3 feet high. Poured concrete costs about $30-$40 or more a square foot (usually with a minimum charge for small jobs), or about $1,500-$2,000 for a wall 30 inches high and 20 feet long.