H&H Modeling Services

Flood Studies

TWE specializes in hydrologic and hydraulic modeling of streams, particularly as the modeling relates to delineating and reclaiming floodplains.

Detention Assessments

TWE is proficient in assessing the impacts of proposed development and recommending detention pond sizing and outlet structures for mitigation.

FEMA Letters of Map Change

TWE has significant knowledge of the FEMA Letter of Map Change processes, including CLOMR, LOMR, LOMR-F, and LOMA.

Infrastructure Sizing

TWE has experience sizing channels, culverts, and storm drain systems to convey design storms.