20100823 AB1141 091085 ANDERSON SWALE 12.18.09.pdf
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- Attached to
- Restore CEMIRT Parking Area
- Solicitation number
- FA481921R0023
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This solicitation notice is for the Restore CEMIRT Parking Area contract at Tyndall Air Force Base, Florida. The contract will be a single award, firm-fixed price contract to provide all professional services, permits, equipment, labor, tools, materials, and ancillary items necessary to complete tasks defined in the Statement of Work. The period of performance is 365 calendar days after notice to proceed. The contractor must adhere to guidance including Unified Facilities Criteria 325-001, 325-003, and 36-0001 as well as Air Force standards, DOD directives, Florida statutes, FDOT requirements, Tyndall AFB regulations, and OSHA and EPA regulations. The North American Industry Classification System code is 238990 with a $16.5 million size standard. This requirement is set aside as a 100% Service-Disabled Veteran-Owned Small Business. The solicitation will be issued electronically on or about June 2, 2021 using the Lowest Price Technically Acceptable source selection procedure.
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FDOT 1-hr Swale Treatment Rainfall=2.65"Swale Treatment Printed 12/17/2009Prepared by Anderson Engineers, P.A.
Page 1HydroCAD� 9.00 s/n 02740 � 2009 HydroCAD Software Solutions LLC
Time span=0.00-12.00 hrs, dt=0.05 hrs, 241 points Runoff by SCS TR-20 method, UH=SCS
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Runoff Area=56,700 sf 66.49% Impervious Runoff Depth=0.89"Subcatchment 1S: MAAS Storage Pad Tc=10.0 min CN=78 Runoff=3.00 cfs 0.096 af
Peak Elev=0.74' Storage=0.096 af Inflow=3.00 cfs 0.096 afPond 1P: Treatment Swale Outflow=0.00 cfs 0.000 af
Total Runoff Area = 1.302 ac Runoff Volume = 0.096 af Average Runoff Depth = 0.89" 33.51% Pervious = 0.436 ac 66.49% Impervious = 0.865 ac
FDOT 1-hr Swale Treatment Rainfall=2.65"Swale Treatment Printed 12/17/2009Prepared by Anderson Engineers, P.A.
Page 2HydroCAD� 9.00 s/n 02740 � 2009 HydroCAD Software Solutions LLC
Summary for Subcatchment 1S: MAAS Storage Pad
Existing Site:
The existing site is cleared of trees and underbrush and is comprised of Resota Fine Sands with moderate established grass covering. No pre-development model or runoff totals were calculated since the proposed treatment facility will have no discharge offsite.
Proposed Drainage System:
The proposed concrete pad and immediate ground within the limits of construction denoted with silt fencing surrounding construction limits will be treated via swale system treatment. Off-site flows will temain undesturbed and will sheet drain south via the existing roadside drainage ditch system.
Design Guidelines:
Stormwater quantity treatment volumes were calculated based on FDOT rainfall 3 year / 1 hour distribution = 2.65 inches. per ERP AH Volumne II, Chapter 9
Runoff= 3.00 cfs @ 0.73 hrs, Volume= 0.096 af, Depth=0.89"
Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-12.00 hrs, dt= 0.05 hrs FDOT 1-hr Swale Treatment Rainfall=2.65"
Area (sf)CN Description
* 37,700 98CONCRETE PAD, HSG A
19,000 39>75% Grass cover, Good, HSG A 56,700 78Weighted Average 19,000 33.51% Pervious Area 37,700 66.49% Impervious Area
TcLength SlopeVelocityCapacityDescription (min)(feet)(ft/ft)(ft/sec) (cfs)
10.0 Direct Entry, Tc Min.
Subcatchment 1S: MAAS Storage Pad
Runoff
Hydrograph
Time (hours)
1211109876543210
F l o w c f s
FDOT
1-hr Swale Treatment
Rainfall=2.65"
Runoff Area=56,700 sf
Runoff Volume=0.096 af
Runoff Depth=0.89"
Tc=10.0 min
CN=78
3.00 cfs @ 0.73 hrs
FDOT 1-hr Swale Treatment Rainfall=2.65"Swale Treatment Printed 12/17/2009Prepared by Anderson Engineers, P.A.
Page 3HydroCAD� 9.00 s/n 02740 � 2009 HydroCAD Software Solutions LLC
Summary for Pond 1P: Treatment Swale
Treatment Facility:
The treatment facility will consist of a 12" deep dry swale system with typical side slopes of 6:1 and no greater than 3:1. Following the completion of all construction and basin stabilization measures are complete, excess soil and undesirable material must be carefully excavated and removed from the swale so that all accumulated silts, clays, organics, and other fine sediment material has been removed from the facility area. Once cleared of excess material, swale bottoms must be raked and loosened for optimal infiltration. Once properly prepared, bottom and sides must be stabilized with permanent vegetative cover via hydroseeding or sod. All construction methods and activities must comply with the approved procedures outlined in the NWFWMD ERP AH Volume II, Part V �Best Management Practices, Section 5.0.
Infiltration Rate:
Site is comprised of Reosta fine sand, 0 to 5 percent slopes with a Ksat Rating of 1476.9950 micrometers per second. Using FS=2, the infiltration rate =
17.5 in/hr. per USDA Natural Resources Conservation Service, Web Soil Survey
Inflow Area = 1.302 ac,66.49% Impervious, Inflow Depth = 0.89" for Swale Treatment event Inflow = 3.00 cfs @ 0.73 hrs, Volume= 0.096 af Outflow= 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 100%, Lag= 0.0 min Discarded= 0.00 cfs @ 0.00 hrs, Volume= 0.000 af
Routing by Stor-Ind method, Time Span= 0.00-12.00 hrs, dt= 0.05 hrs Peak Elev= 0.74' @ 1.60 hrs Surf.Area= 0.208 ac Storage= 0.096 af
Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= (not calculated: no outflow)
Volume InvertAvail.StorageStorage Description #1 0.00' 0.156 af 3.00'W x 750.00'L x 1.00'H Swale w/ 6:1 Side Slopes Z=6.0
DeviceRouting InvertOutlet Devices #1Discarded 0.00' 17.500 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00'
Discarded OutFlowMax=0.00 cfs @ 0.00 hrs HW=0.00' (Free Discharge) 1=Exfiltration( Controls 0.00 cfs)
FDOT 1-hr Swale Treatment Rainfall=2.65"Swale Treatment Printed 12/17/2009Prepared by Anderson Engineers, P.A.
Page 4HydroCAD� 9.00 s/n 02740 � 2009 HydroCAD Software Solutions LLC
Pond 1P: Treatment Swale
Inflow
Discarded
Hydrograph
Time (hours)
1211109876543210
F l o w c f s
Inflow Area=1.302 ac
Peak Elev=0.74'
Storage=0.096 af
3.00 cfs @ 0.73 hrs
DISCHARGE= 0.00 cfs @ 0.00 hrs
QUANTITY TREATMENT VIA EXFILTRATION
6'-0" 6'-0" 6'-0"
E.
G.
E.
G.
E.
G.
+2
.0
3:1
E.
G.
-1.
0'
3'-0"
21'-0"
ALL DISTURBED SURFACES TO
BE SODDED W/ BERMUDA UPON
COMPLETION (TYP)
PROPOSED 6" CONCRETE
MAAS STORAGE PAD (SEE A-1
FOR CONC. & REINF. DETAILS)
ALL COMPACTED FILL TO BE SODDED
W/ BERMUDA UPON COMPLETION (TYP)
SEE SHEET C-1 FOR
TREATMENT FACILITY
PREPARATION NOTES
E.
G.
-3
E.
G.
-1.
0'6:1 max 6:1 max
FLAT
FLAT
TOP OF DITCH CHECK ELEVATION
(SEE PLANS FOR LOCATIONS &
DETAIL C/C-2 FOR CROSS-SECTION)
6:1 (MIN. 3:1)
S W
A L E
C E N T E R L
IN
E
E.
G.
6.0' (TYP.)
E.G.
E.
G.
-12
TY
P)
ALL DISTURBED SURFACES TO
BE SODDED W/ BERMUDA UPON
COMPLETION (TYP)
6:1 (MIN. 3:1)
6.0' (TYP.)
W
TOP OF SWALE= E.G.
BOTTOM OF SWALE= E.G.-1.0'
6:1 (MIN. 3:1) 3:1
4'-6" 1'-0" 3'-0"
E.
G.
-3
ALL DISTURBED SURFACES TO
BE SODDED W/ BERMUDA UPON
COMPLETION (TYP)
SEE SHEET C-1 FOR TREATMENT
FACILITY PREPARATION NOTES
TYNDALL A.F.B., FL. 32403
325th CIVIL ENGINEERING SQUADRON
Task Order No.
SHEET:
PROJ. NO.
SCALE:
DATE:
Sheet Title
DRAWN BY:
DESIGNED BY:
TYNDALL A.F.B., FL. 32403
MTNT/MPI Job No.
C-4
CONSTRUCT MAAS
STORAGE PAD
CEMERT
0002STORMWATER & EROSION CONTROL
A. WHITTEMORE
A. KRINER
17 DEC 09
AS NOTED
09-1085
4 6
A APPROVED PER CE 18 FEB 10 AAK
B AS BUILTS 16 AUG 10 AAK
SWALE TREATMENT HYDRAULIC ANALYSIS SUMMARY
AutoCAD SHX Text Not Valid Without Signature and Raised Seal of Licensed Engineer
AutoCAD SHX Text
ANDERSON ENGINEERS, P.A.
AutoCAD SHX Text 78 Ricker Avenue
AutoCAD SHX Text Santa Rosa Beach, Florida
AutoCAD SHX Text
PHONE: (850) 231-4540
AutoCAD SHX Text
FAX: (850) 231-7980
AutoCAD SHX Text Certificate of Authorization: # 25932
AutoCAD SHX Text
NOT FOR CONSTRUCTION
AutoCAD SHX Text
OF
AutoCAD SHX Text
NO.
AutoCAD SHX Text M
AutoCAD SHX Text T
AutoCAD SHX Text A
AutoCAD SHX Text B
AutoCAD SHX Text C
AutoCAD SHX Text O
AutoCAD SHX Text M
AutoCAD SHX Text A
AutoCAD SHX Text R
AutoCAD SHX Text C
AutoCAD SHX Text I
AutoCAD SHX Text M
AutoCAD SHX Text O
AutoCAD SHX Text A
AutoCAD SHX Text N
AutoCAD SHX Text D
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REVISION
AutoCAD SHX Text
DATE
AutoCAD SHX Text
BY
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SHT. REF. NO.
AutoCAD SHX Text Terry L. Anderson, P.E. Florida Reg. No. 33553
AutoCAD SHX Text C-2
AutoCAD SHX Text A
AutoCAD SHX Text 1/2" = 1'-0"
AutoCAD SHX Text
TREATMENT SWALE TYPICAL CROSS SECTION
AutoCAD SHX Text C-2
AutoCAD SHX Text B
AutoCAD SHX Text 1/2" = 1'-0"
AutoCAD SHX Text
CONVEYANCE SWALE TYPICAL CROSS SECTION
AutoCAD SHX Text C-2
AutoCAD SHX Text C
AutoCAD SHX Text 1/2" = 1'-0"
AutoCAD SHX Text
DITCH CHECK TYPICAL CROSS SECTION
AutoCAD SHX Text
TRENCH
AutoCAD SHX Text
4" WIDE
AutoCAD SHX Text 8"
AutoCAD SHX Text 28"
AutoCAD SHX Text 36"
AutoCAD SHX Text
LAND SURFACE
AutoCAD SHX Text
POST (TYPICAL)
AutoCAD SHX Text 2"x4" WOODEN
AutoCAD SHX Text
FLOW
AutoCAD SHX Text
LAND SURFACE
AutoCAD SHX Text
12" MINIMUM
AutoCAD SHX Text
(FDOT 985 SPEC)
AutoCAD SHX Text
FILTER FABRIC
AutoCAD SHX Text
4' MINIMUM
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6' MAXIMUM
AutoCAD SHX Text C-2
AutoCAD SHX Text D
AutoCAD SHX Text N.T.S.
AutoCAD SHX Text
TYPICAL SILT FENCE ERECTION DETAIL
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