TAH F32 SWMP_Approved-Unlocked.pdf

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38TH PARKWAY

26TH AVENUE

RIVER FRONT DRIVE

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31,034

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33,932 SF

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91,771 SF

TRACT I

91,771 SF

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PROJECT

LOCATIONS

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48TH AVENUE

THE AURORA

HIGHLANDS PARKWAY

E. WARM SPRINGS AVE.

N. HIGHLANDS CREEK PARKWAY

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42ND AVENUE

RESERVE ST

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MATRIX DESIGN GROUP

707 17TH STREET, SUITE 3150

DENVER, CO. 80202

PH: 303-572-0200

CONTACT: JEFF KILLION, P.E.

JEFF_KILLION@MATRIXDESIGNGROUP.COM

CIVIL ENGINEER

BENCHMARK:

CITY OF AURORA BENCHMARK 3S6636NE003 BEING A 3" DIAM. BRASS CAP (COA BM,

19-020B, E-090A) ATOP THE S. WALL @ THE S.E. COR. OF THE E. 26TH AVE. BRIDGE

CROSSING OVER E-470. BRASS CAP AT LOWER STEP ON WALL WHERE THE RAILING ENDS

ON THE E. END. AKA 19-020B.

ELEVATION = 5521.54 (NAVD88)

MATRIX DESIGN GROUP

707 17TH STREET, SUITE 3150

DENVER, CO. 80202

PH: 303-572-0200

CONTACT: THOMAS KOPF, PLA, ASLA

THOMAS.KOPF@MATRIXDESIGNGROUP.COM

LANDSCAPE ARCHITECT

AURORA HIGHLANDS, LLC

CARLO FERREIRA

250 S PILOT ROAD

LAS VEGAS, NV 89119

DEVELOPER

AURORA HIGHLANDS, LLC

CARLO FERREIRA

250 S PILOT ROAD

LAS VEGAS, NV 89119

PROJECT APPLICANT

INDEX OF SHEETS

SHEET NUMBERDESCRIPTION

TITLE SHEET

GENERAL NOTES

EROSION CONTROL INDEX PLAN

EROSION CONTROL PLANS INITIAL

EROSION CONTROL PLANS FINAL

5 - 6

7 - 8

APPROVED ONE YEAR FROM THIS DATE

AURORA WATER - UTILITIES DIVISION

CITY ENGINEER

DATE

DATE

PLAN PREPARER SIGNATURE BLOCK

I ACKNOWLEDGE MY RESPONSIBILITY FOR THE PREPARTION

OF THE STORMWATER MANAGEMENT PLAN.

JEFF KILLION, P.E.

FOR AND ON BEHALF OF MATRIX DESIGN

GROUP, INC.

DATE

PROJECT OWNER/DEVELOPER

SIGNATURE BLOCK

MATT HOPPER, AACM DISTRICT DATE

I HAVE REVIEWED THE INFORMATION CONTAINED WITHIN

THE STORMWATER MANAGEMENT PLAN AND ACCEPT

RESPONSIBILITY FOR THE REQUIREMENTS SET FORTH.

THE AURORA HIGHLANDS SUNSET PARK

STORMWATER MANAGEMENT PLANS

MARCH 2025

1. CITY OF AURORA PLAN REVIEW IS ONLY FOR GENERAL

CONFORMANCE WITH CITY OF AURORA DESIGN CRITERIA AND THE

CITY CODE. THE CITY IS NOT RESPONSIBLE FOR THE ACCURACY AND

ADEQUACY OF THE DESIGN, DIMENSIONS, AND ELEVATIONS WHICH

SHALL BE CONFIRMED AND CORRELATED AT THE JOB SITE. THE CITY

OF AURORA, THROUGH THE APPROVAL OF THIS DOCUMENT, ASSUMES

NO RESPONSIBILITY FOR THE COMPLETENESS AND/OR ACCURACY OF

THIS DOCUMENT.

2. ALL MATERIALS AND WORKMANSHIP SHALL BE SUBJECT TO

INSPECTION BY THE CITY. THE CITY RESERVES THE RIGHT TO ACCEPT

OR REJECT ANY MATERIALS AND WORKMANSHIP THAT DOES NOT

CONFORM TO THE CITY STANDARDS AND SPECIFICATIONS.

3. THE CONTRACTOR SHALL NOTIFY THE CITY PUBLIC IMROVEMENT

INSPECTIONS DIVISION, 303-739-7420, 24 HOURS PRIOR TO THE

BEGINNING OF CONSTRUCTION.

4. LOCATION OF EXISTING UTILITIES SHALL BE VERIFIED BY THE

CONTRACTOR PRIOR TO ACTUAL CONSTRUCTION. FOR INFORMATION,

CONTACT UTILITY NOTIFICATION CENTER OF COLORADO,

1-800-922-1987 OR 811.

5. THE CONTRACTOR SHALL HAVE ONE SIGNED COPY OF THE PLANS

(APPROVED BY THE CITY OF AURORA), ONE COPY OF THE

APPROPRIATE STANDARDS AND SPECIFICATIONS AT THE JOB SITE AT

ALL TIMES, AND A COPY OF ANY PERMITS AND EXTENSION

AGREEMENTS NEEDED AT THE JOB SITE AT ALL TIMES.

6. IT IS THE CONSULTANT'S RESPONSIBILITY TO ACCURATELY SHOW

EXISTING CONDITIONS, BOTH ON-SITE, AND OFF-SITE, ON THE

CONSTRUCTION PLANS. ANY MODIFICATIONS NEEDED DUE TO

CONFLICTS, OMISSIONS, OR CHANGED CONDITIONS EITHER ON-SITE

OR OFF-SITE, WHICH ARISE IN THE FIELD, WILL BE ENTIRELY THE

DEVELOPER'S RESPONSIBILITY. THE COST TO RECTIFY ANY ADVERSE

SITUATION TO MEET THE CITY STANDARDS AND SPECIFICATIONS AND

THE CITY CODE SHALL BE BORNE SOLELY BY THE DEVELOPER.

7. THE OWNER/DEVELOPER MUST OBTAIN THE WRITTEN PERMISSION OF

THE ADJACENT PROPERTY OWNER(S) PRIOR TO ANY OFF-SITE

GRADING OR CONSTRUCTION.

8. THE OWNER/CONTRACTOR MUST OBTAIN A C.D.P.S. STORM WATER

DISCHARGE PERMIT FROM THE COLORADO DEPARTMENT OF PUBLIC

HEALTH AND ENVIRONMENT, IF REQUIRED.

9. PROJECT SHALL COMPLY WITH UTILITY ENGINEERING INVESTIGATING

AND DOCUMENTING REQUIREMENTS PER CRS 9-1.5-101 ET SEQ., AS

AMENDED, WHEN THE PROJECT INCLUDES EXCAVATION. BY

STAMPING THE PLAN THE ENGINEER OF RECORD IS CERTIFYING THE

PLAN MEETS THE STANDARDS ESTABLISHED BY THE AMERICAN

SOCIETY OF CIVIL ENGINEERS' ASCE 38 STANDARD, LATEST

PUBLICATION, FOR DEFINING THE ACCURACY OF A FACILITY OR

UTILITY.

10. PROJECT SHALL COMPLY WITH AURORA WATER STANDARDS AND

SPECIFICATIONS, LATEST EDITION, WHEN THE PROJECT INCLUDES

EXCAVATION, INCLUDING BUT NOT LIMITED TO INSTALLATION OF

ELECTRONICALLY TRACEABLE MARKERS OR BEING TRACEABLE BY

APPROVED ELECTRONIC METHODS FOR ALL SUBSURFACE UTILITIES.

11. PAVING OF PUBLIC STREETS SHALL NOT START UNTIL A SOIL REPORT

AND PAVEMENT DESIGN IS APPROVED BY THE CITY ENGINEER, PROOF

ROLLING, AND SUBGRADE AND TRENCH COMPACTION TESTS TAKEN

BY THE DEVELOPER’S GEOTECH ARE APPROVED BY PUBLIC

IMPROVEMENTS INSPECTIONS/MATERIALS LAB.

12. STANDARD CITY OF AURORA CURB RAMPS SHALL BE CONSTRUCTED

AT ALL CURB RETURNS, AT ALL "T" INTERSECTIONS AND AT ALL

CURBSIDE KIOSKS OR CLUSTERS, UNLESS OTHERWISE MODIFIED BY

THESE PLANS.

13. ALL STATIONING IS BASED ON CENTERLINE OF ROADWAYS UNLESS

OTHERWISE NOTED.

14. ALL ELEVATIONS ARE (INDICATE TOP OF CURB OR FLOW LINE) UNLESS

OTHERWISE NOTED.

15. THE CITY OF AURORA SHALL NOT BE LIABLE FOR THE MAINTENANCE

OF . (INSERT NAME OF SPECIFIC PRIVATE IMPROVEMENT(S), OR ‘ANY

PRIVATE IMPROVEMENTS’ IF UNKNOWN.) THESE FACILITIES MAY NOT

MEET CITY STANDARDS AND SHALL REMAIN IN PRIVATE MAINTENANCE

BY _________________ (INSERT NAME OF ENTITY TO BE RESPONSIBLE

FOR THE MAINTENANCE) IN PERPETUITY. THESE PRIVATE FACILITIES

INCLUDE, IF PROVIDED, THE PRIVATE UNDERDRAIN SYSTEM PLACED

WITHIN THE PUBLIC RIGHT-OF-WAY.

16. THE CONTRACTOR/DEVELOPER IS RESPONSIBLE FOR CONTACTING

CDOT TO ENSURE ALL WORK ON OR ADJACENT TO STATE HIGHWAYS

OR CDOT R.O.W. MEETS CDOT REQUIREMENTS.

17. THE PUBLIC STREETLIGHT OR PEDESTRIAN LIGHT INSTALLATION

WITHIN THE PUBLIC RIGHT-OFWAY SHALL BE DESIGNED, FUNDED, AND

CONSTRUCTED BY THE DEVELOPER/OWNER. OWNERSHIP AND

MAINTENANCE OF THE PUBLIC STREET/PEDESTRIAN LIGHTS SHALL BE

THE RESPONSIBILITY OF THE CITY OF AURORA ONCE THEY HAVE

BEEN ACCEPTED. STREETLIGHT AND/OR PEDESTRIAN PHOTOMETRICS

PLANS SHALL BE PREPARED AND SUBMITTED TO THE CITY FOR

REVIEW AND APPROVAL AND SHALL BECOME A PART OF THE

APPROVED CIVIL CONSTRUCTION PLANS FOR THE PROJECT. AN

ELECTRICAL PLAN SHOWING SITE LOCATION OF LIGHTS, ELECTRICAL

ONE LINE AND GROUNDING DETAILS SHALL BE SUBMITTING TO THE

PERMIT CENTER FOR REVIEW BY THE BUILDING DEPARTMENT. THE

OWNER IS RESPONSIBLE FOR OBTAINING AN ADDRESS FOR THE

METER(S) FROM THE PLANNING DEPARTMENT. A BUILDING PERMIT

FOR THE METER AND A PUBLIC INSPECTIONS PERMIT FOR THE

STREET LIGHTS ARE REQUIRED. IT IS THE DEVELOPER’S/OWNER’S

RESPONSIBILITY TO CONTACT XCEL ENERGY TO INITIATE AND OBTAIN

ELECTRICAL SERVICE FOR ANY NEW DEVELOPMENT/REDEVELOPMENT

DURING THE PLAN REVIEW PROCESS. SUBMITTAL REQUIREMENTS

AND PROCEDURES 2-15 2023

18. THE OWNER/CONTRACTOR MUST OBTAIN A C.D.P.S. STORM WATER

DISCHARGE PERMIT FROM THE COLORADO DEPARTMENT OF PUBLIC

HEALTH AND ENVIRONMENT, IF REQUIRED.

19. THE OWNER/CONTRACTOR IS RESPONSIBLE FOR COORDINATING

WITH THE ARMY CORP OF ENGINEERS FOR WETLAND MITIGATION OR

WORK WITHIN THE WATERS OF THE U.S., IF REQUIRED. IT IS THE

RESPONSIBILITY OF THE OWNER/CONTRACTOR TO PROVIDE A COPY

OF THE ARMY CORP OF ENGINEER’S REQUIREMENTS TO THE CITY OF

AURORA. IF THERE ARE NO REQUIREMENTS BY THE ARMY CORP OF

ENGINEERS, THEN A WRITTEN NOTIFICATION FROM THE ARMY CORP

OF ENGINEERS SHALL BE SUBMITTED TO THE CITY OF AURORA

STATING SUCH. CITY APPROVAL OF THE CONSTRUCTION PLANS IS

SUBJECT TO THE OWNER/CONTRACTOR OBTAINING A 404 PERMIT, IF

APPLICABLE. A COPY OF THIS PERMIT SHALL BE SUBMITTED TO THE

CITY OF AURORA PRIOR TO ANY PERMITS BEING ISSUED.

20. ALL SIGNAGE AND STRIPING SHALL BE IN ACCORDANCE WITH THE

MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES, UNLESS

OTHERWISE NOTED BY THE CITY OF AURORA.

PRIVATE UNDERDRAIN SYSTEMS FOR GROUNDWATER DISCHARGES

FROM FOUNDATION DRAINS SHALL BE OWNED AND MAINTAINED BY

THE HOA/METRO DISTRICT (SELECT ONE).

21. PROJECT SHALL COMPLY WITH UTILITY ENGINEERING INVESTIGATION

AND DOCUMENTING REQUIREMENTS PER CRS 9-1.5-101 ET SEQ., AS

AMENDED, WHEN THE PROJECT INCLUDES EXCAVATION. BY

STAMPING THE PLAN THE ENGINEER OF RECORD IS CERTIFYING THE

PLAN MEETS THE STANDARDS ESTABLISHED BY THE AMERICAN

SOCIETY OF CIVIL ENGINEERS’ ASCE 38 STANDARD, LATEST

PUBLICATION, FOR DEFINING THE ACCURACY OF A FACILITY OR

UTILITY. PROJECT SHALL COMPLY WITH AURORA WATER STANDARDS

AND SPECIFICATIONS, LATEST EDITION, WHEN THE PROJECT

INCLUDES EXCAVATION, INCLUDING BUT NOT LIMITED TO

INSTALLATION OF ELECTRONICALLY TRACEABLE MARKERS OR BEING

TRACEABLE BY APPROVED ELECTRONIC METHODS FOR ALL

SUBSURFACE UTILITIES

22. IN LOCATIONS WHERE UTILITY EASEMENTS OVERLAP DRAINAGE

EASEMENTS, ONLY SUBSURFACE UTILITIES SHALL BE PERMITTED

WITHIN THE PORTION OF THE UTILITY EASEMENT THAT OVERLAPS THE

DRAINAGE EASEMENT. INSTALLATION OF ABOVE GROUND UTILITIES

WITHIN A DRAINAGE EASEMENT REQUIRES PRIOR WRITTEN

APPROVAL BY THE AURORA WATER ENGINEERING SERVICES

MANAGER, OR DESIGNEE.

23. PROPOSED PROJECT PHASING SHALL BE INCLUDED IN THE CIVIL

PLANS. THE PHASING PLAN SHALL INCLUDE A DESCRIPTIVE

NARRATIVE FOR EACH PHASE ALONG WITH PLAN VIEW. SUBMITTAL

REQUIREMENTS AND PROCEDURES 2-16 2023.

24. CRITICAL TRAFFIC CONTROL AREAS, AS IDENTIFIED BY THE TRAFFIC

MANAGER DURING CIVIL PLAN REVIEW, ARE CIRCUMSTANCES THAT

DEVELOP RESULTING FROM TEMPORARY MODIFICATIONS TO THE

ROADWAY NETWORK. CRITICAL TRAFFIC CONTROL AREAS CAN

INCLUDE, BUT ARE NOT LIMITED TO:

· LANE CLOSURES RESULTING IN REDUCTION IN VEHICLES

CAPACITY GREATER THAN 50%,

· PROXIMITY TO INTERSECTIONS, ACCESS DRIVES, RAIL LINES,

· LOCATIONS WITH HIGHER MULTIMODAL MOVEMENTS, OR

· OTHER SPECIAL CIRCUMSTANCES

WHEN IDENTIFIED, THE CONTRACTOR SHALL SUBMIT TRAFFIC

CONTROL PLANS (TCPS) TO THE CITY THROUGH THE PUBLIC

IMPROVEMENT PERMIT APPLICATION PROCESS FOR THE CITY’S

REVIEW AS SOON AS POSSIBLE OR A MINIMUM OF FOUR WEEKS IN

ADVANCE OF CONSTRUCTION. IN ADDITION, AS PART OF THE PUBLIC

IMPROVEMENT PERMIT AND TCP, THE CONTRACTOR MAY BE

REQUIRED TO PROVIDE ADVANCE NOTICE (MINIMUM TWO WEEKS) TO

NEARBY IMPACTED USERS. NOTIFICATIONS BY THE CONTRACTOR MAY

BE REQUIRED TO NEIGHBORING RESIDENCES, BUSINESSES, OR

IMPACTED OPERATIONS OF EMERGENCY RESPONSE ENTITIES (LAW

ENFORCEMENT, FIRE, AND MEDICAL), TRANSIT, DELIVERY COMPANIES,

ETC., AS DETERMINED BY THE TRAFFIC MANAGER AT TIME OF THE TCP

REVIEW

26. THE CIVIL PLANS FOR THE ASSOCIATED INFRASTRUCTURE (ROADWAY

AS SHOWN IN THE INFRASTRUCTURE SITE PLANS) MUST BE

APPROVED PRIOR TO ISSUANCE OF ADJACENT BUILDING PERMITS.

CONSTRUCTION SHOWN ON CIVIL PLANS FOR THE ASSOCIATED

INFRASTRUCTURE MUST BE INITIALLY ACCEPTED BY THE CITY PRIOR

TO ISSUANCE OF TEMPORARY CERTIFICATE OF

OCCUPANCY/CERTIFICATE OF OCCUPANCY (TCO/CO) PER THE PUBLIC

IMPROVEMENT PLAN (PIP).

27. ENSURE THAT THE PROVISIONS OF CRS 37-92-602, AS AMENDED BY

SENATE BILL 15-212, REGARDING NOTIFICATION OF DOWNSTREAM

WATER RIGHTS HOLDERS ARE UPHELD.

CITY OF AURORA NOTES

BASIS OF BEARINGS:

BASIS OF BEARINGS BEARING SHOWN HEREON ARE GRID BEARINGS DERIVED FROM GPS

OBSERVATION BASE UPON THE COLORADO COORDINATE SYSTEM OF 1983 CENTRAL

ZONE (NAD83, 2011) REFERENCED TO THE EASTERLY BOUNDARY OF THE AURORA

HIGHLANDS SUBDIVISION FILING NO. 2, TAKEN TO BEAR NORTH 08 32 14 WEST, A

DISTANCE OF 1,017.25 FEET, BEING MONUMENTED BY A FOUND 1-1/4” ORANGE PLASTIC

CAP STAMPED PLS 38668 AT THE NORTHERLY CORNER AND A FOUND 1-1/4” ORANGE

PLASTIC CAP STAMPED PLS NO 38668 AT THE SOUTHERLY CORNER AND MOUNMENTED

AS SHOWN HEREON, WITH ALL BEARINGS CONTAINED HEREIN BEING RELATIVE THERE

TO.

TRACT A, THE AURORA HIGHLANDS SUBDIVISION FILING NO. 32

SITUATED IN THE WEST HALF OF SECTION 30, TOWNSHIP 3 SOUTH, RANGE

65 WEST OF THE SIXTH PRINCIPAL MERIDIAN

CITY OF AURORA, COUNTY OF ADAMS, STATE OF COLORADO

LOCATION MAP

SCALE: 1" = 2000'

N

HORIZ.

VERT.

DESIGNED BY:

DRAWN BY:

CHECKED BY:

SCALE DATE ISSUED: DRAWING No.

SEAL

FOR AND ON BEHALF OF

MATRIX DESIGN GROUP, INC.

PROJECT No.

PREPARED BY:

FILE NAME:

PLOT DATE:

THIS DRAWING IS CURRENT AS OF PLOT DATE AND MAY BE SUBJECT TO CHANGE.

COMPUTER FILE MANAGEMENT

No. DATE DESCRIPTION BY

REVISIONS

SHEET

Know what's below.

before you dig.Call

R

KEY MAP: 1" = 500'

N

STORMWATER MANAGEMENT

PLANS

March 12, 2025 2:12:05 PM R:\23.1229.025 TAH Park PA-58\500 CADD\504 Plan Sets\Construction Plans\GEC Plan\TS01-.dwg

23.1229.025 02

MARCH 2025

TS01

TITLE SHEET

CITY OF AURORA, COUNTY OF ADAMS, STATE OF COLORADO

STORMWATER MANAGEMENT PLANS

THE AURORA HIGHLANDS SUNSET PARK

N/A

N/AGA

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APPROVED ON 03/25/2025

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03/17/2025

3/24/2025

3/25/2025

3/12/2025 2:12 PM

R:\23.1229.025 TAH Park PA-58\500 CADD\504 Plan Sets\Construction Plans\GEC Plan\GN01.dwg

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MARCH 2025

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CITY OF AURORA, COUNTY OF ADAMS, STATE OF COLORADO

STORMWATER MANAGEMENT PLANS

THE AURORA HIGHLANDS SUNSET PARK

23.1229.025

GENERAL NOTES

CITY OF AURORA GENERAL EROSION CONTROL NOTES

12" MIN. BURY DEPTH

4" (TYP.)

1"

90° BEND

1.0% MIN SLOPE OF

OUTLET PIPE

SCHEDULE 40 PVC

OR GREATER

HD

EL3

EL2

EL1 (OUTLET)

INVERT ELEVATION AT OUTLET

INVERT ELEVATION AT BEND

LOWEST PERFORATION INVERT

TOP OF RISER PIPE ELEVATION

POND BOTTOM

EL1

EL2

EL3

EL4

EL5

EL4

EL5

SB

TA

(AC)

W

(FT)

L

(FT)

CL

(FT)

HD

(IN)

V

(AC-FT)

NR OD

(IN)

EL3

(FT)

EL4

(FT)

EL1

(FT)

EL2

(FT)SB

EL5

(FT)

1 5484.73 5486.88 5488.55 5489.89 5487.00

SEDIMENT BASIN

TRIBUTARY AREA

BOTTOM WIDTH

BOTTOM LENGTH

SPILLWAY CREST LENGTH

SB

TA

W L

CL

*DRILL HOLES IN FRONT AND BACK OF RISER PIPE AT 4" ON

CENTER TO ACHIEVE TWO COLUMNS

1 7.06 0.8961'X115' 41 3/4"*10 8

VOLUME W/ 1' FREEBOARD

HOLE DIAMETER

NUMBER OF RISER HOLE ROWS

OUTLET PIPE DIAMETER

V

HD

NR

OD

HORIZ.

VERT.

DESIGNED BY:

DRAWN BY:

CHECKED BY:

SCALE DATE ISSUED: DRAWING No.

SEAL

FOR AND ON BEHALF OF

MATRIX DESIGN GROUP, INC.

PROJECT No.

PREPARED BY:

FILE NAME:

PLOT DATE:

THIS DRAWING IS CURRENT AS OF PLOT DATE AND MAY BE SUBJECT TO CHANGE.

COMPUTER FILE MANAGEMENT

No. DATE DESCRIPTION BY

REVISIONS

SHEET

Know what's below.

before you dig.Call

R

KEY MAP: 1" = 500'

N

STORMWATER MANAGEMENT

PLANS

1. CONTRACTOR AND CONSTRUCTION MANAGER SHALL VERIFY EXISTING TOPOGRAPHY AND ESTIMATED EARTHWORK

QUANTITIES PRIOR TO EXECUTING WORK.

2. ADDITIONAL FINE GRADING WILL BE REQUIRED PRIOR TO PAVEMENT CONSTRUCTION. EARTHWORK SEQUENCING AND METHODOLOGY SHALL BE COORDINATED BETWEEN THE CONTRACTOR AND THE CONSTRUCTION MANAGER.

3. UTILITY NOTIFICATION CENTER - CONTRACTOR SHALL CONTACT UTILITY NOTIFICATION CENTER FOR LOCATION OF UNDERGROUND UTILITIES AT LEAST 48 HOURS PRIOR TO COMMENCEMENT OF CONSTRUCTION. PHONE: 1-800-922-1987.

4. ESTIMATED EARTHWORK QUANTITIES PROVIDED HEREIN DO NOT INCLUDE EARTHWORK FOR FOUNDATION AND

BASEMENT EXCAVATION.

5. ESTIMATED EARTHWORK QUANTITIES ARE TO FINISH GRADE. NO ALLOWANCE HAS BEEN MADE FOR STRIPPING, EXISTING PAVEMENT THICKNESS, FUTURE PAVEMENT THICKNESS, UTILITY SPOILS, NOR SHRINKAGE DUE TO

SCARIFICATION/COMPACTION.

6. NO ALLOWANCE HAS BEEN MADE FOR TOPSOIL IMPORT.

7. THE ENGINEER MAY REQUIRE SILT FENCING OR ROCK SOCKS AS NECESSARY TO RETARD SEDIMENT TRANSPORT ON OR OFF THE PROJECT SITE. SILT FENCE SHALL BE INSTALLED ALONG THE EXISTING BACK OF CURB OR SIDEWALK. SILT FENCE OR ROCK SOCKS SHALL BE REMOVED AND REPLACED AS CONSTRUCTION PHASING PROGRESSES.

8. FINAL LOCATION AND SIZE OF STAGING AREA (SSA) AND SITE ENTRANCE (VTC) MAY BE DETERMINED AT THE SITE BY THE

CONTRACTOR.

9. INLET PROTECTION FOR PROPOSED STORM SEWER SHALL BE INSTALLED UPON CONSTRUCTION OF THE INLET.

CONSTRUCTION PHASING NOTES:

THE CONTRACTOR IS RESPONSIBLE FOR PROVIDING REASONABLE AND PRUDENT EROSION AND SEDIMENT CONTROL MEASURES TO PROTECT THE DOWNSTREAM FACILITIES AND WHICH ARE RELEVANT TO THE CURRENT CONSTRUCTION

ACTIVITY. AT A MINIMUM THE FOLLOWING BMPS SHALL BE INSTALLED FOR EACH PHASE:

1. DEMO AND GRADING

a. VEHICLE TRACKING CONTROL

b. STABILIZED STAGING AREA

c. SILT FENCE

d. INLET PROTECTION

e. SURFACE ROUGHENING

f. ROCK SOCKS

2. UTILITY CONSTRUCTION - ALL ABOVE BMPS PLUS

a. ADDITIONAL INLET PROTECTION AT NEW INLETS

b. CONCRETE WASHOUT AREA

3. PAVING AND STABILIZATION

a. SEEDING & MULCHING

b. REMOVE BMPS AS UPSTREAM AREA IS ESTABLISHED

PURSUANT TO SECTIONS 138-440 AND 138-442 OF THE AURORA MUNICIPAL CODE, THE PERMITTEE SHALL LOCATE, INSTALL, AND MAINTAIN ALL BEST MANAGEMENT PRACTICES, INCLUDING, BUT NOT LIMITED TO, EROSION CONTROLS, SEDIMENT CONTROLS, DRAINAGE CONTROLS, AND WATER

QUALITY BMPS AS INDICATED IN THE APPROVED STORMWATER MANAGEMENT PLAN (SWMP).

BMP INSTALLATIONS SHALL BE INSTALLED PER THE COA STANDARD DETAIL IN EFFECT AT THE TIME OF INSTALLATION OR PER THE APPROVED SWMP DESIGN DRAWING, A COA APPROVED VARIANCE, OR A COA APPROVED DESIGN DRAWING PLAN AMENDMENT.

1. THE PERMITTEE SHALL BE RESPONSIBLE FOR REMEDIATION OF ANY ADVERSE IMPACTS TO ADJACENT WATERWAYS, WETLANDS, STORM SEWERS, STORM SEWER APPURTENANCES, OTHER PROPERTIES, ETC., RESULTING FROM WORK DONE AS PART OF THIS PROJECT.

2. ADDITIONAL EROSION AND SEDIMENT CONTROL BMPS MAY BE REQUIRED DURING AND AFTER CONSTRUCTION AND SHALL BE EXECTUED AND COMPLETED BY THE PERMITTEE. THE PERMITTEE SHALL PLAN, INSTALL, AND MAINTAIN ALL EROSION, AND SEDIMENT CONTROL MEASURES, INCLUDING DRAINAGE AND WATER QUALITY BMPS AS INDICATED ON THIS PLAN AND AS NECESSARY TO REDUCE THE DISCHARGE OF POLLUTANTS TO THE MAXIMUM EXTENT PRACTICABLE ADVERSE IMPACTS, EROSION AND SEDIMENT DEPOSITION ONTO PAVED SECTIONS, INTO STORM SEWERS, STORM SEWER APPURTENANCES, RECEIVING WATERS, OR OFF THE PROJECT SITE.

3. THE PERMITTEE SHALL TAKE APPROPRIATE PREVENTIVE MEASURES TO MINIMIZE TO THE MAXIMUM EXTENT PRACTICABLE DIRT AND MUD FROM BEING TRACKED OR DEPOSITED ONTO PAVED SECTIONS VIA MULTIPLE BMPS. SEDIMENT, MUD, AND CONSTRUCTION DEBRIS THAT MAY BE TRACKED, DEPOSITED, OR ACCUMULATED ON PAVED SECTIONS, IN THE FLOW LINES, PRIVATE PROPERTY, AND/OR PUBLIC RIGHTS-OF-WAY

OF THE CITY AS A RESULT OF THIS CONSTRUCTION PROJECT SHALL BE CLEANED UP.

4. AREAS REACHING SUBSTANTIAL COMPLETION OF GRADING AND TOPSOIL PLACEMENT OPERATIONS MUST BE DRILL SEEDED AND CRIMP MULCHED WITHIN 14 DAYS OF SUBSTANTIAL COMPLETION OF GRADING AND TOPSOIL OPERATIONS. IF AN INCOMPLETE AREA IS TO REMAIN INACTIVE FOR LONGER THAN 30 DAYS, IT MUST BE DRILL SEEDED AND CRIMP MULCHED OR OTHERWISE LANDSCAPED WITHIN 14 DAYS FROM

THE SUSPENSION OR COMPLETION OF LAND DISTURBANCE ACTIVITIES.

5. THIS APPROVED SWMP DESIGN DRAWING, THE ASSOCIATED APPROVED SWMP NARRATIVE, A COPY OF THE STORMWATER QUALITY DISCHARGE PERMIT, AND THE RULES AND REGULATIONS REGARDING STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION

ACTIVITIES MANUAL SHALL BE KEPT ON SITE AT ALL TIMES.

6. ACCUMULATED SEDIMENT AND DEBRIS SHALL BE REMOVED FROM A BMP (MAINTENANCE) WHEN THE SEDIMENT LEVEL OR DEBRIS ADVERSELY IMPACTS THE FUNCTIONING OF THE BMP OR AS DEFINED WITHIN THE RULES AND REGULATIONS REGARDING STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITIES MANUAL, WHICHEVER IS MORE RESTRICTIVE. IF MAINTENANCE OF THE BMP

DOES NOT RESTORE THE INTENDED FUNCTION, THEN THE BMP MUST BE REPLACED.

7. THE DISCHARGING OF CEMENT, CONCRETE, OR MORTAR FROM READY MIX DELIVERY TRUCKS, PUMP TRUCKS, BATCH PLANTS OR SMALL MECHANICAL MIXERS DIRECTLY ONTO PAVED SURFACES OR DISTURBED GROUND HAVING NO CONTAINMENT IS PROHIBITED. THE DISPOSAL OF ANY LIQUID WASTES OR WASH WATER FROM ANY OPERATIONS SUCH AS PAINTING, DRYWALL, OR TILE INSTALLATIONS DIRECTLY ONTO PAVED SURFACES OR THE GROUND WITHOUT CONTAINMENT IS PROHIBITED. THE PERMITTEE SHALL PROTECT ALL CURB FLOW LINES, ADJACENT WATERWAYS, WETLANDS, STORM SEWERS, STORM SEWER APPURTENANCES, OTHER PROPERTIES, ETC., ADJACENT TO ANY LOCATION WHERE PAVEMENT CUTTING OPERATIONS INVOLVING WHEEL CUTTING, SAW CUTTING, OR ABRASIVE WATER JET CUTTING ARE

TAKING PLACE.

8. IT SHALL BE THE RESPONSIBILITY OF THE PERMITTEE TO RESOLVE CONSTRUCTION PROBLEMS DUE TO CHANGING CONDITIONS OR DESIGN ERRORS THEY MAY ENCOUNTER DURING THE PROGRESS OF ANY PORTION OF THE WORK. IF CONDITIONS IN THE FIELD REQUIRE CHANGES AND THE PROPOSED MODIFICATIONS TO THE APPROVED PLANS INVOLVE SIGNIFICANT CHANGES TO THE CHARACTER OF THE WORK OR TO FUTURE CONTIGUOUS PUBLIC OR PRIVATE IMPROVEMENTS, THE CONTRACTOR, THROUGH THE ENGINEER OF RECORD, SHALL BE RESPONSIBLE TO REVISE PLANS AND SUBMIT THEM TO THE CITY OF AURORA FOR APPROVAL PRIOR TO ANY FURTHER CONSTRUCTION RELATED TO THAT PORTION OF THE WORK. ANY CONTROLS, FEATURES OR IMPROVEMENTS NOT CONSTRUCTED IN ACCORDANCE WITH THE APPROVED SWMP, CITY OF AURORA STANDARD DETAIL DESIGNS, CITY OF AURORA APPROVED VARIANCES, OR AN APPROVED DESIGN DRAWING AMENDMENT SHALL BE REMOVED AND THE CONTROLS, FEATURES AND/OR IMPROVEMENTS SHALL BE RECONSTRUCTED.

9. SECONDARY CONTAINMENT FEATURES SHALL BE IN PLACE FOR ANY BULK FUEL STORAGE, MIXERS, GENERATORS, OR ANY OTHER SPILL OR LEAK SOURCE THAT REMAINS ONSITE FOR A PERIOD LONGER THAN 7 CALENDAR DAYS. A RECOVERY OR SALVAGE DRUM SHALL BE KEPT

ON-SITE FOR STORAGE OF CONTAMINATED SOILS.

10. STRAW BALES AND RECYCLED ASPHALT OR CONCRETE ARE NOT ACCEPTABLE FOR THE CONSTRUCTION OF BMPS WITHIN THE CITY OF

AURORA AND MAY NOT BE USED.

1. A CITY OF AURORA STORMWATER QUALITY DISCHARGE PERMIT FOR CONSTRUCTION ACTIVITIES MUST BE ISSUED BY THE CITY AND EXECUTED BY A COA EROSION CONTROL STAFF PRIOR TO ANY EARTHWORK ACTIVITIES. AN ON-SITE INSPECTION WILL BE CONDUCTED TO VERIFY THE CORRECT INSTALLATION AND ADEQUACY OF INITIAL BMPS FOR THE SITE. NO EARTHWORK, INCLUDING CLEARING AND GRUBBING, OR DEMOLITION ACTIVITIES ARE TO BEGIN UNTIL THE PROJECT SITE HAS PASSED AN INSPECTION AND THE CITY OF AURORA STORMWATER QUALITY DISCHARGE PERMIT FOR CONSTRUCTION ACTIVITIES HAS BEEN EXECUTED. THE PERMITTEE IS REQUIRED TO PRESENT THE PROJECT'S CDPHE/WQCD STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITY PERMIT TO THE INSPECTOR DURING THE INITIAL INSPECTION. THE PERMITTEE SHALL DESIGNATE A STORMWATER MANAGEMENT PLAN (SWMP) ADMINISTRATOR ON THE APPLICATION FOR THE CITY OF AURORA STORMWATER QUALITY DISCHARGE PERMIT FOR CONSTRUCTION ACTIVITIES. THE SWMP ADMINISTRATOR WILL ACT AS THE PROJECT REPRESENTATIVE FOR ANY CONCERNS OR ISSUES REGARDING

ENVIRONMENTAL CONTROLS AND STORMWATER MANAGEMENT.

2. THESE REQUIREMENTS SHALL BE THE OBLIGATION OF THE PERMITTEE, UNTIL SUCH TIME AS THE PERMIT IS PROPERLY CLOSED, OR OTHERWISE ALLOWED BY THE CITY TO BE VOIDED, MODIFIED, TRANSFERRED, RE-ASSIGNED, OR REPLACED.

3. THIS SWMP NARRATIVE, THE SWMP DESIGN DRAWINGS, AND THE PERMITTEE'S INSPECTION AND MAINTENANCE RECORDS ARE ALL COMPONENTS OF REQUIRED RECORD KEEPING AND SHALL BE KEPT ON SITE AT ALL TIMES AND UPDATED AS REQUIRED. THESE AND ANY

OTHER PERTINENT RECORDS SHALL BE PROVIDED TO THE CITY WHEN REQUESTED.

4. ANY DISCREPANCY BETWEEN THIS SUMP AND ANY OTHER APPROVED STORMWATER MANAGEMENT PLAN FOR THIS SITE SHALL REQUIRE

COMPLIANCE WITH THE MORE RESTRICTIVE VALID, APPROVED PLAN.

5. STREETS SHALL BE CONSTRUCTED WITH ROUGH CUT STREET CONTROL MEASURES, SURFACE ROUGHENED, OR OTHERWISE TEMPORARILY STABILIZED WITH ROUGH CUT STREET CONTROLS WITHIN SEVEN (7) DAYS OF COMPLETION OF GRADING IN THE APPROPRIATE PHASE. IF PAVING IS TO OCCUR WITHIN FOURTEEN (14) DAYS AFTER FINAL GRADING, ROUGH CUT STREET CONTROLS

SHALL BE WAIVED.

6. INSPECTION AND MAINTENANCE OF EROSION AND SEDIMENT CONTROL BEST MANAGEMENT PRACTICES (BMPS) ARE THE CONTINUOUS OBLIGATION OF THE PERMITTEE. BMPS SHALL BE INSPECTED AT A MINIMUM EVERY SEVEN (7) DAYS AND WITHIN 24 HOURS AFTER THE END OF A PRECIPITATION EVENT THAT PRODUCES RUN-OFF, AND FOLLOWING SNOWMELT EVENTS. IF A SITE IS TEMPORARILY IDLE AND NO CONSTRUCTION ACTIVITIES WILL OCCUR DURING THE 48 HOURS FOLLOWING A STORM EVENT, THE POST-PRECIPITATION EVENT (INCLUDING SNOWMELT) INSPECTION SHALL BE CONDUCTED PRIOR TO COMMENCING CONSTRUCTION ACTIVITIES ON THE SITE, BUT NOT LATER THAN 72 HOURS FOLLOWING THE STORM EVENT. ALL NECESSARY MAINTENANCE AAND REPAIRS SHALL BE INITIATED AND COMPLETED ON AN ON-GOING BASIS, AS FEATURES ARE REQUIRED TO OPERATE CONTINUOUSLY. INSPECTIONS MAY NEED TO BE CONDUCTED AT A GREATER FREQUENCY THAN NOTED ABOVE, TO ENSURE FEATURES AND SYSTEMS ARE OPERATING ADEQUATELY.

EROSION AND SEDIMENT CONTROL BMPS SHALL BE MAINTAINED AND FUNCTIONAL FOR THE ENTIRE DURATION OF THE PROJECT.

7. INGRESS AND EGRESS VEHICLE ACCESS POINTS ONTO DISTURBED AREAS SHALL BE STABILIZED WITH VEHICLE TRACKING CONTROL PADS (VTC) AND SHALL BE CONSTRUCTED WITH ANGULAR ROCK, 3" TO 6" IN SIZE AND TO A DEPTH OF AT LEAST 9 INCHES. THE USE OF RECYCLED ASPHALT OR CONCRETE IS NOT PERMITTED. THE VTC SHALL BE INSTALLED OVER A LINER OF NON-WOVEN GEOTEXTILE WITH A WEIGHT OF AT LEAST 10 OZ/YD2 AND A GRAB TENSILE STRENGTH OF AT LEAST 250 POUNDS. NO DIRT OR OTHER MATERIALS SHALL BE PLACED ON PAVED SURFACES OR CURB FLOW LINES TO ACT AS CURB RAMPS. ONLY METAL RAMPS OR ROCK WATTLES MAY BE USED IN

THE CURB FLOW LINE.

8. FUGITIVE DUST EMISSIONS RESULTING FROM GRADING ACTIVITIES AND/OR WIND SHALL BE CONTROLLED USING REASONABLY AVAILABLE CONTROL TECHNOLOGY AS DEFINED BY THE COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT.

9. ALL POTENTIAL POLLUTION SOURCES ON-SITE SHALL BE IDENTIFIED AND CONTROL MEASURES INSTALLED AND PRACTICED TO MINIMIZE THE LIKELIHOOD OF A RELEASE. SPILL PREVENTION CONTROLS SHALL BE DEVELOPED FOR THE SITE WITH BMPS IN PLACE TO RESPOND

TO ANY SPILLS, LEAKS OR OTHER RELEASES.

10. HYDRAULIC MULCHING AS A MEANS TO COVER AND PROTECT SEEDING IS NOT AN ACCEPTABLE MEANS OF APPLYING MULCH IN THE CITY OF AURORA UNLESS A PREVIOUSLY INSTALLED IRRIGATION SYSTEM IS USED TO AID GERMINATION AND GROWTH AND WHERE APPROVED

THROUGH VARIANCE. HYDRAULIC SEEDING IS NOT PERMITTED.

11. FOR ALL POROUS LANDSCAPE DETENTION FACILITIES, IN ORDER TO PREVENT CLOGGING OF FILTER MEDIUM, INSTALLATION OF THE

FILTRATION SYSTEM MUST BE DELAYED UNTIL AFTER THE SITE IS FULLY LANDSCAPED.

12. IF STOCKPILES ARE LOCATED WITHIN 100 FEET OF A DRAINAGE WAY OR A PUBLIC STORM SEWER SYSTEM, ADDITIONAL SEDIMENT CONTROLS SUCH AS TEMPORARY DIVERSION DIKES, SILT FENCE, OR SEDIMENT BASIN SHALL BE REQUIRED

13. PROJECT SHALL COMPLY WITH UTILITY ENGINEERING INVESTIGATION AND DOCUMENTING REQUIREMENTS PRE CRS 9-1.5-101 ET SEQ., AS AMENDED, WHEN THEN PROJECT INCLUDES EXCAVATION. BY STAMPING THE PLAN THE ENGINEER OF RECORD IS CERTIFYING THE PLAN MEETS THE STANDARDS ESTABLISHED BY THE AMERICAN SOCIETY OF CIVIL ENGINEERS' ASCE 38 STANDARD, LATEST PUBLICATION, FOR

DEFINING THE ACCURACY OF A FACILITY OR UTILITY.

14. PROJECT SHALL COMPLY WITH AURORA WATER STANDARDS AND SPECIFICATIONS, LATEST EDITION, WHEN THE PROJECT INCLUDES EXCAVATION, INCLUDING BUT NOT LIMITED TO INSTALLATION OF ELECTRONICALLY TRACEABLE MARKERS OR BEING TRACEABLE BY

APPROVED ELECTRONIC METHODS FOR ALL SUBSURFACE UTILITIES.

APPROVED ON 03/25/2025

S

S

S

8''SS

8''SS 8''SS 8''SS

8''SS 8''SS

8''W

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

8''W 8''W 8''W 8''W

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

8''SS

8''SS

8''SS

8''SS

8''SS

8''W 8''W

8''SS

8''SS 8''SS 8''SS8''SS 8''SS 8''SS 8''SS 8''SS

8' 'S

S

8''W 8''W 8''W 8''W 8''W 8''W 8''W 8''W 8''W 8''W

EC01,EC03

EC02,EC04

TRACT A

THE AURORA HIGHLANDS

SUBDIVISION FILING NO. 32

THE AURORA

HIGHLANDS ISP #1

CN# 2019-6016-00

THE AURORA HIGHLANDS

SITE PLAN #9

CN# 2020-6029-00

AURORA

HIGHLANDS

SUBDIVISION

FILING #15

EDN# 222118

MAI

N S

TR

EE

T (F

OUR LA

NE

AR

TE

RIA

L)

(P

UBL

IC

R

OW

W

ID

TH

V

AR

IE

S)

REC

. N

O. 2

E. WARM SPRINGS AVENUE

(COLLECTOR THREE LANE)

(78' PUBLIC ROW )

DA-2062-15

REC. NO. 2023000042190

N . C

AT

AW

BA

W

AY

(L

O C

AL

S

TR

EE

T

TY

PE

(P

U

BL

IC

R

O W

W

ID

TH

V

AR

IE

S) D

A -2

2-

R

E C

. N O

. 2

AURORA HIGHLANDS

SUBDIVISION

FILING #15

EDN# 222118

AURORA HIGHLANDS

SUBDIVISION

FILING #15

EDN# 222118

AURORA HIGHLANDS

SUBDIVISION

FILING #15

EDN# 222118

HORIZ.

VERT.

DESIGNED BY:

DRAWN BY:

CHECKED BY:

SCALE DATE ISSUED: DRAWING No.

SEAL

FOR AND ON BEHALF OF

MATRIX DESIGN GROUP, INC.

PROJECT No.

PREPARED BY:

FILE NAME:

PLOT DATE:

THIS DRAWING IS CURRENT AS OF PLOT DATE AND MAY BE SUBJECT TO CHANGE.

COMPUTER FILE MANAGEMENT

No. DATE DESCRIPTION BY

REVISIONS

SHEET

Know what's below.

before you dig.Call

R

KEY MAP: 1" = 500'

N

N

060 12060

SCALE: 1" = 60'

BENCHMARK

CITY OF AURORA BENCHMARK 3S6636NE003 BEING A 3" DIAM.

BRASS CAP (COA BM, 19-020B, E-090A) ATOP THE S. WALL @

THE S.E. COR. OF THE E. 26TH AVE. BRIDGE CROSSING OVER

E-470. BRASS CAP AT LOWER STEP ON WALL WHERE THE

RAILING ENDS ON THE E. END. AKA 19-020B.

ELEVATION = 5521.54 (NAVD88)

March 12, 2025 2:12:38 PM R:\23.1229.025 TAH Park PA-58\500 CADD\504 Plan Sets\Construction Plans\GEC Plan\ECX1.dwg

23.1229.025 04

MARCH 2025

ECX1

EROSION CONTROL INDEX SHEET

CITY OF AURORA, COUNTY OF ADAMS, STATE OF COLORADO

STORMWATER MANAGEMENT PLANS

THE AURORA HIGHLANDS SUNSET PARK

1"=60'

N/AGA

EG

EJK

APPROVED ON 03/25/2025

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

8' 'W

S

THE AURORA HIGHLANDS

ISP #1 CN# 2019-6016-00

TH

E A

URORA H

IG

HLA

NDS

SITE

P

LA

N #9

CN# 2

0-6

9-0

1.

6%

1.6

2.

8%

2.3%

2.0%

9.2%

2.

6%

2.1

1.

9%

2.4%

3.9%

4:1

12" DIP WATER

EDN# 222235

12" PVC

SANITARY SEWER

EDN# 222235

30" RCP

STORM SEWER

EDN# 222118

36" STL WATER

EDN# 219314

24" PVC

SANITARY SEWER

EDN# 219062

M

AI

N

ST

RE

ET

(F

OUR

L

AN

E

AR

TE

RI

AL

(P

UB

LI

C

RO

W

W

ID

TH

V

AR

IE

S)

RE

C.

N O. 2

AURORA HIGHLANDS

SUBDIVISION

FILING #15

EDN# 222118

AURORA HIGHLANDS

SUBDIVISION

FILING #15

EDN# 222118

LOC

LOC

LOC

LOC

CF

CF

CF CF

LOC

LOC

CF

LOC

VTC

CWA

SSA

DD

DD

DD

CD

SB

ECB

ECB

SF

CF

SF

SF

SF SF

SF

SF

E. WARM SPRINGS AVENUE

(COLLECTOR THREE LANE)

(78' PUBLIC ROW )

DA-2062-15

REC. NO. 2023000042190

DISTURBED

DRAINAGE AREA

TO SB-1

DISTURBED

DRAINAGE AREA

TO SB-1

DISTURBED

DRAINAGE AREA

TO SB-1

2.

8%

2.

6%

1.

7%

1.4%

8.

1%

3.

3%

1.8

3.0

1.9

2.0%

2.

7%

1.7

4.

5%

1.4%

2.1

5493.00

DIVERSION DITCH (DD-1A)

LENGTH: 259 LF

SLOPE: 0.77%

CHECK DAM: EVERY 200 LF (1)

TEMPORARY SEDIMENT BASIN 1

TRIB AREA (DISTURBED) = 7.06 ACRES

VREQUIRED = 25,416 CF (0.58 AC-FT)

VPROVIDED = 38,702 CF (0.89 AC-FT)

W = 61' L = 115'

HD = 1.76"

BOT POND ELEV = 5487.00'

CREST ELEV = 5490.87'

TOP OF BERM = 5492.00'

EXISTING STORM

INVERT ELEV: 5484.73'

TEMP. 8" RISER PIPE (PVC)

L= 64 LF

S= 3.35%

SEE ECGN FOR INVERTS

1.

6%

TYPE M RIP-RAP RUNDOWN

12" DEEP

WIDTH=6'

LENGTH=20'

TYPE M RIP-RAP RUNDOWN

12" DEEP

WIDTH=6'

LENGTH=20'

1 12" - 2" CRUSHED ROCK

EMERGENCY SPILLWAY

EL= 5491'

CREST LEGNTH = 10'

N . C

AT

AW

BA

W

AY

(L

O C

AL

S

TR

EE

T

TY

PE

(P

U

BL

IC

R

O W

W

ID

TH

V

AR

IE

S) D

A -2

2-

R

E C

. N O

. 2

EXISTING POND 8540

EDN # 222235

54875488548954915491

HORIZ.

VERT.

DESIGNED BY:

DRAWN BY:

CHECKED BY:

SCALE DATE ISSUED: DRAWING No.

SEAL

FOR AND ON BEHALF OF

MATRIX DESIGN GROUP, INC.

PROJECT No.

PREPARED BY:

FILE NAME:

PLOT DATE:

THIS DRAWING IS CURRENT AS OF PLOT DATE AND MAY BE SUBJECT TO CHANGE.

COMPUTER FILE MANAGEMENT

No. DATE DESCRIPTION BY

REVISIONS

SHEET

Know what's below.

before you dig.Call

R

KEY MAP: 1" = 500'

N

STORMWATER MANAGEMENT

PLANS

March 12, 2025 2:13:14 PM R:\23.1229.025 TAH Park PA-58\500 CADD\504 Plan Sets\Construction Plans\GEC Plan\EC01.dwg

23.1229.025 05

MARCH 2025

EC01

EROSION CONTROL PLAN INITIAL PHASE

CITY OF AURORA, COUNTY OF ADAMS, STATE OF COLORADO

STORMWATER MANAGEMENT PLANS

THE AURORA HIGHLANDS SUNSET PARK

1"=30'

N/AGA

EG

EJK

MATCHLINE SEE SHEET EC02

BENCHMARK:

CITY OF AURORA BENCHMARK 3S6636NE003 BEING A

3" DIAM. BRASS CAP (COA BM, 19-020B, E-090A) ATOP

THE S. WALL @ THE S.E. COR. OF THE E. 26TH AVE.

BRIDGE CROSSING OVER E-470. BRASS CAP AT

LOWER STEP ON WALL WHERE THE RAILING ENDS ON

THE E. END. AKA 19-020B.

ELEVATION = 5521.54

NOTES:

1. REFER TO THE CITY OF AURORA STANDARD

SPECIFICATIONS FOR EROSION CONTROL DETAILS

AND SPECIFICATIONS.

2. STOCKPILE SHALL HAVE A MAXIMUM OF 3:1 SLOPES

AND BE A MAXIMUM OF 10 FEET IN HEIGHT.

3. FINAL DIMENSIONS AND LOCATIONS OF VTC, SSA

AND STOCKPILES TO BE DETERMINED BY THE

CONTRACTOR.

CD

DC

ECB

SF

SM

SR

SSA

TSC

VTC

LOC

SITE LEGEND

BMP

LEGEND

CF

RCS

SP

DRAINAGE ARROW

5490 EXISTING 5' CONTOUR

EXISTING 1' CONTOUR

1.00%

CWA

IP

PROPOSED 1' CONTOUR

PROPOSED 5' CONTOUR

OFFSITE PROPOSED 5' CONTOUR

(REFER TO PLAN FOR RSN

NUMBERS)

OFFSITE PROPOSED 1' CONTOUR

(REFER TO PLAN FOR RSN

NUMBERS)

N

030 6030

SCALE: 1" = 30'

APPROVED ON 03/25/2025

8''SS

8''SS

8''SS

2.2%

2.7%

3.2%

5:1

5:1 4:1

4:1

4:

5:1

0.40%

0.40%

0.40%

30" RCP

STORM SEWER

EDN# 222235

12" PVC

SANITARY SEWER

EDN# 222235

12" DIP WATER

EDN# 222235

18" RCP

STORM SEWER

EDN# 222118

42" RCP

STORM SEWER

EDN# 222235

72" RCP

STORM SEWER

EDN# 222235

30" RCP

STORM SEWER

EDN# 222118

E. WARM SPRINGS AVENUE

(COLLECTOR THREE LANE)

(78' PUBLIC ROW )

DA-2062-15

REC. NO. 2023000042190

LOC

LOC

CF

IP

IP

LOC

CF

CF

IP

CF

DD

CD

SF

SF

SF

1.8

2.0%

3.3%

5493.00

DIVERSION DITCH (DD-1B)

LENGTH: 390 LF

SLOPE: 0.51%

CHECK DAM: EVERY 200 LF (1)

2.6%

EXISTING POND 8540

EDN # 222235

EXISTING POND 8540

EDN # 219009

HORIZ.

VERT.

DESIGNED BY:

DRAWN BY:

CHECKED BY:

SCALE DATE ISSUED: DRAWING No.

SEAL

FOR AND ON BEHALF OF

MATRIX DESIGN GROUP, INC.

PROJECT No.

PREPARED BY:

FILE NAME:

PLOT DATE:

THIS DRAWING IS CURRENT AS OF PLOT DATE AND MAY BE SUBJECT TO CHANGE.

COMPUTER FILE MANAGEMENT

No. DATE DESCRIPTION BY

REVISIONS

SHEET

Know what's below.

before you dig.Call

R

KEY MAP: 1" = 500'

N

STORMWATER MANAGEMENT

PLANS

March 12, 2025 2:13:23 PM R:\23.1229.025 TAH Park PA-58\500 CADD\504 Plan Sets\Construction Plans\GEC Plan\EC01.dwg

23.1229.025 06

MARCH 2025

EC02

EROSION CONTROL PLAN INITIAL PHASE

CITY OF AURORA, COUNTY OF ADAMS, STATE OF COLORADO

STORMWATER MANAGEMENT PLANS

THE AURORA HIGHLANDS SUNSET PARK

1"=30'

N/AGA

EG

EJK

MATCHLINE SEE SHEET EC01

N

030 6030

SCALE: 1" = 30'

BENCHMARK:

CITY OF AURORA BENCHMARK 3S6636NE003 BEING A

3" DIAM. BRASS CAP (COA BM, 19-020B, E-090A) ATOP

THE S. WALL @ THE S.E. COR. OF THE E. 26TH AVE.

BRIDGE CROSSING OVER E-470. BRASS CAP AT

LOWER STEP ON WALL WHERE THE RAILING ENDS ON

THE E. END. AKA 19-020B.

ELEVATION = 5521.54

NOTES:

1. REFER TO THE CITY OF AURORA STANDARD

SPECIFICATIONS FOR EROSION CONTROL DETAILS

AND SPECIFICATIONS.

2. STOCKPILE SHALL HAVE A MAXIMUM OF 3:1 SLOPES

AND BE A MAXIMUM OF 10 FEET IN HEIGHT.

3. FINAL DIMENSIONS AND LOCATIONS OF VTC, SSA

AND STOCKPILES TO BE DETERMINED BY THE

CONTRACTOR.

CD

DC

ECB

SF

SM

SR

SSA

TSC

VTC

LOC

SITE LEGEND

BMP

LEGEND

CF

RCS

SP

DRAINAGE ARROW

5490 EXISTING 5' CONTOUR

EXISTING 1' CONTOUR

1.00%

CWA

IP

PROPOSED 1' CONTOUR

PROPOSED 5' CONTOUR

OFFSITE PROPOSED 5' CONTOUR

(REFER TO PLAN FOR RSN

NUMBERS)

OFFSITE PROPOSED 1' CONTOUR

(REFER TO PLAN FOR RSN

NUMBERS)

APPROVED ON 03/25/2025

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

8''SS

S

2.0

2.

0%

2.0%

2.

0%

2.0%

4.

4%

3.3%

7.

8%

2.1%

4.2%

2.2

1.1%

3.8%

8:1

5.

0%

2.

0%

2.

3%

2.5%

2.1%

BIKE RACK,

TYP.

TRASH

RECEPTACLE,

TYP.

PROP 24"X24"

SUMP INLET

PROP 6" PVC

STORM SEWER

PROP 6" PVC

STORM SEWER

FITNESS

AREA

PICNIC

AREA

BENCH

PICNIC

AREA

FITNESS

AREA

FITNESS

AREA

BOCCE BALL

4' PATH

10' SDWK

10' SDWK

10' SDWK

6' PATH

6' PATH

8' PATH

6' PATH

10' SDWK

10' SDWK

4:1

PLAY AREA

(TURF)

BIKE RACK,

TYP.

IP

IP SR

SM

SR

SR

SR

SR

SR

SM

SR

SM

SM

SM

SM

SM

LOC

LOC

LOC

LOC

CF

CF

CF CF

LOC

LOC

CF

LOC

VTC

CWA

SSA

DD

DD

DD

CD

SB

ECB

ECB

SF

CF

SF

SF

SF SF

SF

SF

12" DIP WATER

EDN# 222235

TRACT A

THE AURORA HIGHLANDS

SUBDIVISION FILING NO. 32

THE AURORA HIGHLANDS

ISP #1 CN# 2019-6016-00

TH

E A

URORA H

IG

HLA

NDS

SITE

P

LA

N #9

CN# 2

0-6

9-0

10' SDWK

PLAYGROUND

(ENGINEERED

WOOD FIBER PLAY

SURFACING)

LANDSCAPE

AREA

4:1

4:

4:1

4:1

4:1

4:1

2:1

6:1

5:1

0.2%

0.4%

1.

0%

0.

8%

0.5%

1.1%

0.0%

0.9%

E. WARM SPRINGS AVENUE

(COLLECTOR THREE LANE)

(78' PUBLIC ROW )

DA-2062-15

REC. NO. 2023000042190

AURORA

HIGHLANDS

SUBDIVISION

FILING #15

EDN# 222118

AURORA

HIGHLANDS

SUBDIVISION

FILING #15

EDN# 222118

EX

IS

TI

N

G S

ID

EW

AL

K

EX

IS

TI

NG S

ID

EW

AL

K

EXISTING SIDEWALK

MAIN

S

TR

EET

(F

OUR LA

NE A

RTE

RIA

L)

(P

UBLIC

R

OW

W

ID

TH

V

ARIE

S)

REC. N

O. 2

N . C

AT

AW

BA

W

AY

(L

O C

AL

S

TR

EE

T

TY

PE

(P

U

BL

IC

R

O W

W

ID

TH

V

AR

IE

S) D

A -2

2-

R

E C

. N O

. 2

EXISTING POND 8540

EDN # 222235

PROP 24"X24"

UNDERDRAIN

C.O.

HORIZ.

VERT.

DESIGNED BY:

DRAWN BY:

CHECKED BY:

SCALE DATE ISSUED: DRAWING No.

SEAL

FOR AND ON BEHALF OF

MATRIX DESIGN GROUP, INC.

PROJECT No.

PREPARED BY:

FILE NAME:

PLOT DATE:

THIS DRAWING IS CURRENT AS OF PLOT DATE AND MAY BE SUBJECT TO CHANGE.

COMPUTER FILE MANAGEMENT

No. DATE DESCRIPTION BY

REVISIONS

SHEET

Know what's below.

before you dig.Call

R

KEY MAP: 1" = 500'

N

STORMWATER MANAGEMENT

PLANS

March 12, 2025 2:13:55 PM R:\23.1229.025 TAH Park PA-58\500 CADD\504 Plan Sets\Construction Plans\GEC Plan\EC02.dwg

23.1229.025 07

MARCH 2025

EC03

EROSION CONTROL PLAN FINAL PHASE

CITY OF AURORA, COUNTY OF ADAMS, STATE OF COLORADO

STORMWATER MANAGEMENT PLANS

THE AURORA HIGHLANDS SUNSET PARK

1"=30'

N/AGA

EG

EJK

MATCHLINE SEE SHEET EC04

BENCHMARK:

CITY OF AURORA BENCHMARK 3S6636NE003 BEING A

3" DIAM. BRASS CAP (COA BM, 19-020B, E-090A) ATOP

THE S. WALL @ THE S.E. COR. OF THE E. 26TH AVE.

BRIDGE CROSSING OVER E-470. BRASS CAP AT

LOWER STEP ON WALL WHERE THE RAILING ENDS ON

THE E. END. AKA 19-020B.

ELEVATION = 5521.54

NOTES:

1. REFER TO THE CITY OF AURORA STANDARD

SPECIFICATIONS FOR EROSION CONTROL DETAILS

AND SPECIFICATIONS.

2. STOCKPILE SHALL HAVE A MAXIMUM OF 3:1 SLOPES

AND BE A MAXIMUM OF 10 FEET IN HEIGHT.

3. FINAL DIMENSIONS AND LOCATIONS OF VTC, SSA

AND STOCKPILES TO BE DETERMINED BY THE

CONTRACTOR.

CD

DC

ECB

SF

SM

SR

SSA

TSC

VTC

LOC

SITE LEGEND

BMP

LEGEND

CF

RCS

SP

DRAINAGE ARROW

5490 EXISTING 5' CONTOUR

EXISTING 1' CONTOUR

1.00%

CWA

IP

PROPOSED 1' CONTOUR

PROPOSED 5' CONTOUR

OFFSITE PROPOSED 5' CONTOUR

(REFER TO PLAN FOR RSN

NUMBERS)

OFFSITE PROPOSED 1' CONTOUR

(REFER TO PLAN FOR RSN

NUMBERS)

N

030 6030

SCALE: 1" = 30'

APPROVED ON 03/25/2025

8''SS

8''SS

8''SS

4.0%

2.2

3.6%

8.9%

3.6%

FITNESS AREA

PROP 24"X24"

SUMP INLET

PROP 6" PVC

STORM SEWER

FITNESS AREA

FITNESS AREA

PICKLEBALL

COURTS

5:1

5:1

4:1

4:1

4:

5:1

0.40%

0.40%

0.40%

EX 12'

ACCESS

10' SDWK

IP

IP

SM

SR

LOC

LOC

CF

IP

IP

LOC

CF

CF

IP

CF

DD

CD

SF

SF

SF

30" RCP

STORM SEWER

EDN# 222118PROPOSED

JERSEY

BARRIERS

30" RCP

STORM SEWER

EDN# 222235

LANDSCAPE

AREA

4:

4.4%

2.9%

6:

5:1 5:1

0.9%

1.1%

E. WARM SPRINGS AVENUE

(COLLECTOR THREE LANE)

(78' PUBLIC ROW )

DA-2062-15

REC. NO. 2023000042190

EXISTING SIDEWALK

EXISTING POND 8540

EDN # 222235

EXISTING POND 8540

EDN # 219009

54925492

5496 54

98 5499

HORIZ.

VERT.

DESIGNED BY:

DRAWN BY:

CHECKED BY:

SCALE DATE ISSUED: DRAWING No.

SEAL

FOR AND ON BEHALF OF

MATRIX DESIGN GROUP, INC.

PROJECT No.

PREPARED BY:

FILE NAME:

PLOT DATE:

THIS DRAWING IS CURRENT AS OF PLOT DATE AND MAY BE SUBJECT TO CHANGE.

COMPUTER FILE MANAGEMENT

No. DATE DESCRIPTION BY

REVISIONS

SHEET

Know what's below.

before you dig.Call

R

KEY MAP: 1" = 500'

N

STORMWATER MANAGEMENT

PLANS

March 12, 2025 2:14:02 PM R:\23.1229.025 TAH Park PA-58\500 CADD\504 Plan Sets\Construction Plans\GEC Plan\EC02.dwg

23.1229.025 08

MARCH 2025

EC04

EROSION CONTROL PLAN FINAL PHASE

CITY OF AURORA, COUNTY OF ADAMS, STATE OF COLORADO

STORMWATER MANAGEMENT PLANS

THE AURORA HIGHLANDS SUNSET PARK

1"=30'

N/AGA

EG

EJK

MATCHLINE SEE SHEET EC03

N

030 6030

SCALE: 1" = 30'

BENCHMARK:

CITY OF AURORA BENCHMARK 3S6636NE003 BEING A

3" DIAM. BRASS CAP (COA BM, 19-020B, E-090A) ATOP

THE S. WALL @ THE S.E. COR. OF THE E. 26TH AVE.

BRIDGE CROSSING OVER E-470. BRASS CAP AT

LOWER STEP ON WALL WHERE THE RAILING ENDS ON

THE E. END. AKA 19-020B.

ELEVATION = 5521.54

NOTES:

1. REFER TO THE CITY OF AURORA STANDARD

SPECIFICATIONS FOR EROSION CONTROL DETAILS

AND SPECIFICATIONS.

2. STOCKPILE SHALL HAVE A MAXIMUM OF 3:1 SLOPES

AND BE A MAXIMUM OF 10 FEET IN HEIGHT.

3. FINAL DIMENSIONS AND LOCATIONS OF VTC, SSA

AND STOCKPILES TO BE DETERMINED BY THE

CONTRACTOR.

CD

DC

ECB

SF

SM

SR

SSA

TSC

VTC

LOC

SITE LEGEND

BMP

LEGEND

CF

RCS

SP

DRAINAGE ARROW

5490 EXISTING 5' CONTOUR

EXISTING 1' CONTOUR

1.00%

CWA

IP

PROPOSED 1' CONTOUR

PROPOSED 5' CONTOUR

OFFSITE PROPOSED 5' CONTOUR

(REFER TO PLAN FOR RSN

NUMBERS)

OFFSITE PROPOSED 1' CONTOUR

(REFER TO PLAN FOR RSN

NUMBERS)

APPROVED ON 03/25/2025