Specifications include, but are not limited to: (1) removal and replacement of the existing twin CMP culvert on Sellersville Road near Brook Lane with 38 inch by 60 inch Twin, Skewed, Elliptical RCP pipes; (2) removal and replacement of the existing 72 inch RCP culvert on Walters Road near Helens Lane with a 63-inch by 98-inch Single Elliptical RCP; (3) the removal and replacement of the existing box culvert along Sellersville Road near Curley Mill Road with a 16-foot by 3-foot, 6-inch clear concrete three-sided or four sided box culvert; and (4) the removal and replacement of the existing box culvert on Upper Church Road between Upper Stump and King Roads with a 10-foot by 5-foot clear three-sided or four-sided concrete box culvert.