requirements contracts for engineering design and related services ...

(b)
Study and Design of Street Drainage
1. Under this subsection the Consultant shall study the site and tributary storm water flow patterns and/or their
routings; study the proposed street grades developed under the preceding Subsection (a) Study and Design of Street
Grades as described above; design the locations of proposed catch basins; design the locations of catch basin chute
connections to existing or proposed storm or combined sewers; and provide adequately for drainage of all streets that are
included in this project.
2. In studying the existing street drainage facilities, researching storm water run-off and designing new drainage
facilities the Consultant shall:
a) Utilize the topographic data provided to the extent necessary and applicable for the proper completion of this
task;
b) Conduct a "rainy day survey" to observe all gutter flow routings, all ponding and flooding locations, and all
inoperative catch basins and inlets;
c) Design the locations of catch basins and the routing of chute connections into appropriate storm or combined
sewers;
d) In coordination with the Study and Design of Street Grades Task, analyze and design alternate sidewalk and
street drainage schemes including, but not limited to, the adjustment of transverse sidewalk slopes and provision of
longitudinal troughs.
e) Design all non-standard sewer appurtenances;
f) Design, coordinate and incorporate into the contract documents the conversion of existing manholes with 24
inch diameter frame and covers to manholes with 27 inch diameter frame and covers, and all other catch basins,
manholes, basin connections, and non standard drainage appurtenances;
g) Provide a constructability review and reiterate all drainage design elements with regards to the mitigation of
impacts with City owned facilities in accordance with pre-engineered methodology;
h) Present the street drainage plans to private utility companies for private utility impact assessment.
(c)
Permanent Street Signs
1. Under this subsection the Consultant shall inspect and inventory the existing street signs, research and review the
"street sign work order" records of the Bureau of Traffic Operations, make recommendations for modifications to the
existing street signs and for new street signs, as appropriate.
2. The Consultant shall take into consideration all existing traffic regulatory signs, traffic warning signs, street name
signs, including Landmark District special signs, parking regulation signs, and information signs, in executing the work
required under this task.
3. The Consultant shall inventory all permanent street signs as defined above.
4. The Consultant shall design street signage required for the project street(s) in compliance with the latest standards
of the Bureau of Traffic Operations, and/or the New York State Manual of Uniform Traffic Control Devices, where
applicable, as determined by the Commissioner in consultation with the Consultant.
5. The Consultant shall present his/her proposals, for new street signage, to the Bureau of Traffic Operations for
review and approval.
6. The Consultant shall prepare a list of all street signs required for this project in tabular format. The list shall indicate
the text and size of each sign required, and the Consultant's estimated quantity for each sign.
7. The Consultant shall include a tabulation of all required street signs on the contract drawings being developed for
this project in accordance with current Departmental requirements.
NYC Department of Design and Construction
Infrastructure, October 2012
GR-57