On August 2, 2013, EPA published a NODA that among other things, solicited comment regarding a particular type of CCR management unit described by some commenters in the proposed rule as “overfills” (see ). Overfills are CCR landfills constructed over a closed CCR surface impoundment. As discussed in the NODA, in developing the proposed rule, EPA was not aware that CCR was managed in this fashion and so did not either evaluate this specific management scenario or propose technical requirements specifically tailored to this type of unit. Under the proposed rule, these types of units would need to comply with both the requirements applicable to the closure of surface impoundments or landfills, and with all of the technical requirements applicable to new landfills. Information collected since the proposal confirmed that the practice of constructing overfills for the disposal of CCR is conducted with some regularity, and raised questions as to whether overfills would be effectively regulated under the proposed technical requirements of the rule. In the NODA, to aid in the development of final technical requirements, EPA solicited data and information that directly addressed existing engineering guidelines or practices applicable to this units, as well as any regulatory requirements governing the siting, design, construction, and long-term protectiveness of these units for the disposal of CCR.
Geosynthetic reinforced soil integrated bridge system interim implementation guide. publication no. fhwa-hrt-11-026... geosynthetic reinforced soil integrated...
The second document is a synthesis report to ..
Grs = geosynthetic reinforced soil... june 2012 and geosynthetic reinforced soil reinforced soil integrated bridge system interim implementation guide, 2.
2009 International Building Code
Geosynthetic reinforced soil integrated bridge system synthesis report... geosynthetic reinforced soil integrated bridge system 1.1...
25.4 Michigan Local Technical Assistance Program
, he focuses on case studies.**
Geosynthetic-Reinforced Soil (GRS) systems for bridge abutments and piers have received increased attention and interest today because of their ease and speed of construction and relatively low cost.
EDC News: February 13, 2015 Federal Highway Administration
Bridges with mse wall supported abutments .. the use of systems similar to the geosynthetic reinforced soil - integrated bridge system... bridge approach soil...