Flooding on Poland near the intersections with N. Claiborne Avenue and N. Robertson Street was identified as a major issue by residents. This area floods regularly and deeply and it is difficult for vehicles to pass through this busy area. The two bridges over the Inner Harbor Industrial Canal slope down toward the intersection with Poland Avenue with few drains on the roadway to intercept flow. Combined with inadequate drainage capacity along Poland Ave, the area experience regular street flooding even during more minor storm events. During our evaluation process, LaDOTD has cleaned out the catch basins and several lines in this area have been cleared for videoing.
AI Visualization - not to scale
PROJECT HIGHLIGHTS
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New subsurface storage tank under the old N Claiborne Ave roadway between Kentucky St and Japonica St.
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New bioretention areas in the adjacent median area between the roadway & bridge and corner of N Claiborne and Poland.
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Drainage upgrades on Poland Ave. will replace the existing undersized 10” & 12” culverts with oversized 36” culverts for four blocks of Poland Ave between Marais St. and N. Claiborne Ave. These oversized culverts will allow for extra stormwater storage during a rain event with weirs in the new manholes to slowly release the water into the remainder of the drainage system.
Map showing the flood reduction for Project A according to the model.
A 10-year storm is approximately 8.5" over a 24 hour period.
Project Rendering by Dana Brown & Associates
