FLOOD05988

• Designation Number: 311
• County: Arapahoe
• Community: Aurora
• Stream Name: Granby and Sable Drainageways
• Basin: South Platte
• Title: Flood Hazard Area Delineation - Granby and Sable Drainageways
• Date: 9/1/1990
• Designation Date: 1/1/1991
• Floodplain - Doc Type: Floodplain Report/Masterplan

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Summary of Previous Studies

Report Name

Responsible Entity

Content

Year

Flood Hazard
Area Delinea-
tion Granby
and Sable
Ditch

Urban Drainage and
Flood Control District

Granby Ditch
100-year
Floodplain
Re-Evaluation
due to New
Storm Drain
along East
Colfax Ave.

Centennial Engineering

Request for City of Aurora
Letter of Map
Amendment for
Granby Ditch
from Laredo St.
to Highline Canal
(Project No.
151-81-118-10)

Sable Ditch City of Aurora
Study

Drainage City of Aurora
Report for
Buckley Rd.
from 6th Ave.
to Colfax Ave.
(Project No.
4026A) and
Colfax Ave.
to Smith Rd.
(Project No.
4012A)

1977

1980

1982

1985

1986

100-year flood-
plain boundary
and floodway
data

Split flow
analysis and
floodplain
re-evaluation
for Granby
Drainageway at
Colfax Avenue

Summary of
hydraulic data
and vicinity
map

Determination
of 100-year
flow in the
Sable Drainage-
way as part of
the Improvement
District 1-84
drainage report

Hydrology and
hydraulic
analysis for
the determina-
tion of
drainage
requirements
for Buckley Rd.
from 6th Avenue
to Smith Road

5

City of Aurora City of Aurora
Design Report
on 6th Avenue
Detentlon Pond
(At !'iorfolk)
(Project No.
5045)

1986

Hydrology and
hydraullc
studies on the
upper deter.tion
pond for Granby
Drainageway at
6th Avenue and
Norfolk Street