The High Bridge, decommissioned since 1970, is the oldest bridge in the city of New York, opened originally in 1848 as a means of delivering water to Manhattan. Today, the bridge features a 466-ft-long, three-hinged steel arch spanning the Harlem River and 10 extant granite arches spanning Harlem River Drive, I-87, Metro North Railroad and a smattering of other city streets. The shared-use bridge is being constructed with preservation and rehabilitation methods in accordance with the Secretary of the Interior’s Standards for the Preservation of Historic Properties. The bridge also will be ADA compliant.
Extend the lifespan and durability of any concrete. PoreShield is a USDA BioPreferred product and is approved for residential, commercial, and industrial use. It works great above...
The concrete at the Indiana State Fairgrounds & Event Center is subject to several potential sources of damage including livestock biowaste, food/beverage waste, and freeze/thaw...
PoreShield is a cost-effective, nontoxic alternative to traditional concrete sealers. It works differently, absorbing deep into the concrete pores to block damage from salt ions...
