HomeMy WebLinkAboutSupplemental - PowerPoint from Steve Myrter on Storm Drain & Drainage SystemsCITY OF SEAL BEACH
Seal Way Storm Drain and
Marina Drive and College Park East
Focused Preliminary Design Studi
March 25, 2019
LE EE-
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Presentation Overview
Flood Protection Goals
Seal Way Storm Drain
Marina Drive Drainage Systems
Ironwood, Guava and Elder Avenue Drainage
Systems
Portable Storm Water Pumps
Flood Protection Goals
Primary Goal
Keep flood level at least 1 -foot below pad elevation
for a 100 -year flood.
Other Goals
Arterial Highways
Keep one lane of traffic in each direction open during 10 -year
flood (25 -year flood in sump areas).
Local Streets
Maintain water level below top of curb during 10 -year flood (25-
year flood in sump areas).
County o, standard rlood
Protection Goals
County of Orange
Protection Goals
Standard Flood
Additiuoiai vV.aI LJUak,ll ILcs „Q
Proposed Storm Drains
Convey the design storm peak runoff with hydraulic
grade line (HGL) a minimum of 1 -foot below the
street gutter grade
Size connector pipes to provide a minimum of 6 -inch
freeboard at drainage inlet, such as catch basin or
grate inlet
Questions?
Seal Way Storm Drai
3/25/2019
3/25 /2019
3/25/2019
3/25/2019
3/25/2019
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3/25/2019
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3/25 /2019
11
3125/2019
Phase 1 Improvements
$4,466,504
Phase 2 Improvements
$2,198,236
Phase 3 Improvements
$2,574,582
Phase 4 Improvements
$26,214,858
Phase 5 Improvements
$6,124,694
Phase 6 Improvements
$3,277,827
Phase 7 Improvements
$1,657,199
Total
$46,513,900
12
3/25/2019
Storm Drain
Se em
City ContrlEtttin Areas
location IDs AC %of Total
Caltrans Contributing Arias
Total AC
IDs
AC
%of Total
5133
West End PS to Dory Way
LA,2A,6A,7A,7B,8A,
IOA, 13A, 12A
127.66
95.2%
ICT, 9CT.
12CT
6.
42%
134.
SD2
Eleatic Ave, Dory Way to
Corsair Way
2A, 64, 7A, 78, 84,
10A, 11A, 12A
1018
94.89/
9R. 12CT
5.66
5.2%
108.4
SD3
Eleanc Ave, Corsair Way to
val leon Wav,
6A, 7A, 7B, 8A, IOA,
11A. 12A
79.76
93.4%
9CT, 12CT
5.66
6.6%
85.a
SD4
Eleatic Ave, Galleon Way to
5th St
6A, 8A, 10A, 11A, 12A
S%14
91.3%
9R, 12CT
1 5.661
8.7%
64.
SD5
Eleatic Ave, SM St to Mari na
Dr.
IIA, 12A
15.12
82.9%
12CF
3.11
17.1%
18.2
5136
SD7
SD8
SD9
SDSO
SDll
E.,Stmg
6A
7A, 78
SA, 30A
IWA.
110A
IIA, 12A
S.311
20.62
100.016
100.1P/
N.A.
N.A.
9R
9R
N.A
12R
0
0
2.55
2.55
0
3.t1
0.0%
0.01%
6.2%
100.0%
0.0%
17.1%
53
20.6
41.2
2.5
36.
18.2
Coastline Dr and Carmel Ave
5th St, Eleatic Ave to PCH
3871
0
3689
15.12
93.8%
0.0'4
100.0%
PCH, Storm Drain Extension
Coastline Dr and Marvista Ave
Manna Dr, Electric Ave to 71h
St
82.9{6
SD12
Manna Dr and 7th St to PCH
and Main
12A
9.92
76.1%
12CT
3.11 23.9%
13.0
13
Questions ??
Ironwood, Guava a
Elder Avenue
Drainage Systems
3/25/2019
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Past Rainfall Events
January 15, 2019
Past Rainfall Events
October 16 -17, 2004
3/2512029
Seal Way Storm Drain $700,000
Marina Drive $46,513,900
Potential Caltrans Contribution $2,531,980
Guava and Elder Alternative 1 $10,677,123
Guava and Elder Alternative 2 $21,113,684
Guava and Elder Alternative 3 $30,697,022
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3/25/2019
20
Portable Storm Water Pumps
• Portable storm water pumps
deployed for 4 separate storm
events (to date)
Total pump rental cost to date:
$29,000
Total required staff overtime
hours: 65 hours (to date)
1100 .
Questions??