This document summarizes an early green infrastructure project at the Courtyard by Marriott hotel in University Circle, Ohio. It describes how the parking lot was converted to pervious pavers to allow stormwater to drain into the sandy soil below, eliminating runoff from the site for storms up to 100 years. It also details how stormwater chambers under the hotel roof capture roof runoff and drain it into the soil instead of the sewer system, reducing annual runoff by 1 million gallons.

1. GREEN INFRASTRUCTURE
Early Project: UCI Hotel Project
Courtyard by
Marriott,
University
Circle, Inc.
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2. July 2007 Aerial
Pre-construction condition (near 100%
impervious area due to parking lot)
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3. Parking Lot
Courtyard by
Marriott
l
Hote
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4. GREEN INFRASTRUCTURE
Early Project: UCI Hotel Project
Images provided by University Circle, Inc.
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5. Parking Area
Drainage Area ≈ 1 acre
Hotel rooftop
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6. Pervious Pavers in Parking
Area
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7. The sandy soil in
this area already
provides great
drainage. The
pervious parking
lot uses this to its
advantage,
eliminating runoff
off the site for
storms up to the
100-year storm
event.
#neorsdGREEN

8. Outlet to combined sewer system
This connection will allow for the stormwater runoff to be
discharged to the sewer system, but only in very heavy storms
when the runoff exceeds the capacity of the system.
Stormwater chambers
This system captures the rooftop stormwater runoff.
It allows the water to drain naturally into the sandy
soils under it, instead of discharging stormwater
runoff to the combined sewer system.
Note: No stormwater runoff is expected from this
site through the 100-year storm event. The
system will reduce runoff by 1,000,000 gallons
per year.
#neorsdGREEN