Meeting minutes regarding MTA subway station flooding and stormwater issues,

NYC 9/11 Public Portal Document

MTA Priority Locations and other areas of flooding concern NYC DEP Meeting - 6/08 I Initial I Location Issue Short-term goal Permanent solution DOT status DEP status I Next step(s)/Responsibility |l priority? NYCT - Chambers Street Street Flooding through NYCT temporarily close/tarp vents during NYCT raise vulnerable station entrances Existing curb DEP to clean area catch basins on r™' i(IRT) ; sidewalk gratings and station entrances rainstorms (on-going until permanent (complete); NYCT permanently close soln Is Installed) ; reveal less than (a semiannual basis. NYCT to clean ' : designated vents (complete); NYCT raise i design standard. (area catch basins on an emergency ■ i vulnerable vents (design underway); NYCT i DOT capital [ basis. Cleaning activities to be : protect elevators (design underway) j reconstruction is i coordinated. Status? currently funded in' fiscal year 2009. : This should result i in standard curb reveal in the six to seven inch range. I ^Status? TOT I participating in f I design of raised i vent solution. I I I I I NYCDEP: No DEP actions needed. At this I I location, construction site was blocking basins. i I Condition has been addressed.__________ Y ■ (URR-Bayside i Bayside Station DEP repair sewer (sleeve 22" pipe and If sewer repair is not effective, URR to DEP contractor completed the Once DEP work is complete, URR to test or experienced flooding by grout) beneath LIRR ROW. create a new pumped or gravity drainage sleeving of pipe under LIRR tracks monitor effectiveness of repair. NYCDEP water coming up from system. at Bell blvd. Work [grouting] has not Response: pipe grouting comptoted August 1-2, under the ROW been scheduled by the DEP 2008. No further DEP actions needed. subcontractor "En-Tech". URR has worked with them to plan work. Work forecast to take 1-2 days and will require a track outage on PW #2 LIRR reps were orginally ! track. This work has been on hold incooperative. DEP could by En-Tech since Nov. 2007. )t secure a core drilling i Status? Contractor safety infract to drill only one core; requirements being verified, is delayed the project expected start late June early July.) j ILIRR reps/ or contractor I itually drilled the core for DEP. MNR - Mott Haven Right-of-way flooding MNR cleaned MNR storm drains and MNR to perform annual cleaning of MNR DEP requested to DEP Annual inspection of siphon at NYCDEP Response: DEP has agreed to annual Yard/149®’ Street catch basins and installed new. drainage structures. DEP to institute semi- investigate 149th and Park Ave. and remove cleanings of the siphon. First cleaning occurred

4k ✓ ] [DEP cleaned and inspected brick arch, j annual cleaning of siphon and drainage system and increase capacity as needed. feasibility of obstructions e.g., defective installing of CSO taps/sediment. Status? or retention basin Maintenance of two DEP sewers during September 2007; next will occur September 2008. Burled basins and manholes located and excavated. Catdi badns along Park coordinated with crossing the yard in an east/west Avenue between 149th and 1Shnd Streets were I I TOT 153rd Street direction at E. 149th Street and cleaned the week of Ai^ust 4. Sewer at Mott bridge beneath existing school platform. Haven yard tnspectsd ami found to be in good construction. Status? DEP requested to physical condition with no deMs impacfirrg flow. Status? DOT to investigate/coordinate/install CSO SCA issue under investigation. I repair expansion retention to address SCA property joints at 149th st. (new construction site) and TOT I bridge. Status? 153rd street bridge drainage. I Ai Status? DEP grant MNR metering issues- we permission to install flow meters in mt do it but we will let DEP pipes in the Mott Haven area lem? Recommendation to more accurately predict and lade by sewer analysis I assess causes of future flooding. rebuild the siphon??? No I i Status? Request to join DOT at 153rd Bridge reconstruction NO.

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