HomeMy WebLinkAboutSite Certifications - 05/18/2005`_ IApr-OB-05 08:10am From -Alliance Construction Solutlons 9T06638T50 T-140 P.003/003 F-720
PAGE e2/aa
April 1, 2003
Mr. Jay Barber
City of Fort Collins
Stormwater Utility
700 Wood Street
Fort Collins, Colorado eos21
Re: Drainage CeRificatlon for Elizabeth Ann Seton Detention Pond 7 J
Dear Jay,
Ayres Associates has been asked to prepare a drainage certification for the detention pond
modttioations associated with the expansion of St. Elizabeth Ann Solon Pariah at the northeast
comer of Lemay Avenue and Southridge Greens Boulevard in southeast Fort Collins, Spot
elevations of the detention pond and the construction of the water quality outlet structure were
checked and compared to the plans to verify the improvements met the approved grading and
dralriage plan. the enclosed drawing shows moth the grading plan and as -bulk spot elevations of
the detention pond.
The detention pond punch list items outlined in the memo to you dated December 17, 2004 have
been competed. The drainage and grading plan call for a water quality outlet structure (per details
sheet 4 and 9 of the construction drawings) to be constructed at the existing 15-inch RCP outfall of
the detention pond. The outlet structure has been constructed according to plan and the required
water quality orifice plate has been installed. The size, number, and location of the water quality
drain holes matoh the design. Since the plans did not call for the volume of the eAating detention
pond to be Increased and no grading was done to the pond, the pond volume was not verified.
The punch Iist also called for the berm elevation of the detention pond to be raised to the elevation of
4937A to meet freeboard requirements. The as-buift spot elevations compare closely with the
design with the largest different being 0.1 foot except In the location of the church sign. Spot
elevations were taken inside the planting area around the church algn that are 0.46 feet lower than
the proposed berm elevation. However, it was veriried there is a wnerete landscape border around
the planting area that appears to be the same elevation as the top of the surrounding berm.
This drainage oertriication is for the detention pond Improvements only. Drainage patterns around
the building wars not evaluated by Ayres Associates. The Contractor has constructed the detention
pond improvemenfa according to the approved grading and drainage plan. If you have any
questions, please call.
Sincerely,
Ayres Associates inc
°L
Join Batka
Project Engineer
JB:ap
EhCIOSU e
Owen Ayres & Asaaelates, Inc.
enpineeral9dentistsMurveyars
3653 JPK Padewoy. Sullering 2. Suito 200. P.O. Bar 2704W, Fort Colling, Go 80527
(670) 223-5336. nenver Metro (303) 672.1806, FAX (970) 223-51175
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— APR-05-2005 TUE 09:41 AM ALLIANCE CONSTRUCTION - FAX NO. 19706639750 P. 01/03
Aver Alliance
v7ATO CONSTRUCTION SOLUTIONS
roar Farmer iv CPaeirr esion Serpkee
St. Elizabeth Ann Seton - 20-305M
5450 S. Lemay Avenue
Fort Collins, Colorado 80525
Date: Monday, April 04, 2005
To: Jay Barber
Company: City of Fort Collins
Fax Number. 970-294-94414-
Tel Number: 970-416-2241
From: Scott Brelsford No. of Pages:3
Re: St. Elizabeth Ann Seton
Jay,
Per my phone message, attached find a copy of the drainage certification for the above
referenced project.
Thanks for all your help.
Scott R. Brelsford
If this transmission is incomplete, please call 970-663-9700
APR-05-2005 TUE 09:41 AM ALLIANCE CONSTRUCTION FAX NO, 19706639750 P. 02/03
04/94/2005 09.29 970: 7578 AYRES ASSOC PAGE 03/03
t 1 1 x 32.63 •.�
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APR-05-2005 TUE 09:41 AM ALLIANCE CONSTRUCTION FAX NO. 19706639750 P, 03/03
04/84/20e5 09:29 970: 1578
AYRES ASSOC .�
PAGE 02/03
A OCIATES
April 1, 2006
Mr. Jay Barber
City of Fort Coffins
Stormwater Utility
700 Wood Street
Fort Collins, Colorado 80521
As. Drainage CeMcation for Elizabeth Ann Seton Detention Pond
Dear Jay,
L
Ayres Associates has been asked to prepare a drainage certification for the detention pond
modifications associated with the expansion of St. Elizabeth Ann Solon Parish at fha northeast
comer of Lemay Avenue and SouthrAge ®reens Boulevard in southeast Fort Collins. Spot
elevations of the detention pond and the construction of the water quality outlet structure were
checked and compared to the plans to verify the improvements met the approved grading and
drainage plan. The enclosed drawing shows both the grading plan and As•bui@ spot elevations of
Me detention pond.
The detention pond punch list Items outlined In the memo to you dated December 17, 2004 have
been competed. The drainage and grading plan call for a water quality outlet structure (per details
sheet 4 and 9 of the construction drawings) to be constructed at the existing 154noh RCP outfall of
the detention pond. The outlet structure has been constructed according to plan and the required
water quality office plate has been installed. The size, number, and location of the water quality
drain (roles match the design. Since the plans did not call for the volume of the exxisting detention
pond to be increased and no grading was done to the pond, the pond volume was not verified.
The punch list also called for the berm elevation of the detention pond to be raised to the elevation of
4937A to meet freeboard requirements. The as -built spot elevations compare olossly with the
design with the largest different being OJ feet except in the location of the church sign. Spot
elevations were taken inside the planting area around the church sign that are 0.46 feet lower than
the proposed bens elevation. However, it was verified there is a concrete landscape border around
the planting area that appears to be the same elevation as the top of the surrounding berm.
This drainage eertfication is for the detention pond Improvements only. Drainage patterns around
the building were not ev"tod by Ayres Associates. The Contractor has constructed the detention
pond improvements according to the approved grading and drainage plan, If you have any
questions, please call.
Sincerely,
Ayres Associates Inc
John Barka, P.E.
Proleot Engineer
JB:sp
5nelosure
Owed Ayres & Associates. Inc.
EngrneervSdeMimleumyure
966s JPK FOrkway. Building 2.6uitc 200. P.O. 9or 270460, Fort Collins. CO 60527
(97o) a23-5556, nemrer Metro (303) 972.W& FAX (M) 223.057%
Prima on mu"d 0a1M.r
9ARe4LI.DOC
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5-05 08:20am FrwAllianca Construction Solutions 0706630750
,v Alliance
�A CONSTRUCTION SOLUTIONS
Hutr pester in Gom&igrtion semiom
St. Elizabeth Ann Seton - 20-305M
5450 S. Lemay Avenue
Fort Collins, Colorado 80525
FAX
Date: Monday, April 04. 2005
To: Jay Barber
Company: City of Fort Collins
Fax Number. -47944-6}
Tel Number:
From:
970-416-2241
Scott Brelsford
T-140 P.001/003 F-720-
No. of Pages:3
Re: St. Elizabeth Ann Seton
Jay,
Per my phone message, attached find a copy of the drainage certfffcation for the above
referenced project.
Thanks for all your help.
Scott R. Brelsford
If this transmission is incomplete, please call
06 0B:268m
Y. Uw zuuu
From -Alliance Construction Solutions
V7. 47 7/u. Bo/O
0706636760
AYMtS ASN 9 y;
T-140 P.002/003 F-720
PAGE 03/03
122/17/2004 -16 20 9702235578 AYRES ASSOC PAGE
i
ASSOCIATES FAX MEMORANDUM
To: Jay Barber From: Chris Doherty
company: City of Fort Collins Date: December 17, 2004
Department Stormwater Utility Project No-: 32-0937.00
Fax Number. 221-6619
Number of Pages (Including this Transmittal):
Jay,
Re: St. Mizabeth Ann Seton
Drainage Certification
Ayres Associates has been asked to prepare a drainage certification for the building addition
and detention pond modifications associated with the expansion of St. Elizabeth Ann Seton
Parish at the northeast comer of Lemay Avenue and Southridge Greens Blvd. in southeast Fort
Collins.
At this point in the process, we are not able to certify the drainage Improvements tor -the site, as
there are several items still incomplete at this time. It appears that the grading around the
building has been completed satisfactorily, however, survey points were not provided to verify
this. Survey points were provided in the detention pond area, but not all facilities appear to
have been constructed. The following is a punch list of Items for completion:
• Survey finished floor elevations, ground adjacent to building and away from the building
to prove that there is positive drainage away from the structure.
• Survey of the field inlets and storm drain pipe, where possible, to verify substantial
conformance with design.
• Construction of water quality outlet structure for the detention pond (per details on
sheets 4 and 9 of the construction drawings).
• Raise detention pond berm to elevation 4937.40 to provide adequate freeboard
(existing is 4936.94 near the church sign).
When these Items are completed, Ayres Associates will be happy to complete a proper
drainage certification letter for the site.
Cc: Scott Brelsford, Alliance Construction Solutions, LLC
Fax:970-663-9750 i/�/,G�``
Engtnsers/ScienbytalSunreyom D:1DralnCertWSEAS\UMferFexl2-17.04.DOC
3665 JFK Parkway, Building 2, Sulte 200. F.O. Box 270460, Fort Collins, CO 80527 32-M7.00
(970) 223.5556. FAX (870) 223ti4578 Pago 11 of
01/01
-71 .12/17/2004 16:21 9702235578 AYRES ASSOC PAGE 01/01
ASSOCIIATO PAX MEMORANDUM
To: Jay Barber From: Chris Doherty
company: City of Font. Collins Date: December 17, 2004
oeparo wt. Stormwater Utility Protect No.: 32-0937.00
Fax Number. 221-6619 Re: St. Elizabeth Ann Seton
Drainage Certification
Number of Pages Qncluding this TransmftW);
Jay,
Ayres Associates has been asked to prepare a drainage certification for the building addition
and detention pond modifications associated with the expansion of St. Elizabeth Ann Seton
Parish at the northeast comer of Lemay Avenue and Southridge Greens Blvd. in southeast Fort
Collins.
At this point in the process, we are not able to certify the drainage improvements for the site, as
there are several Items still Incomplete at this time. It appears that the grading around the
building has been completed satisfactorily, however, survey points were not provided to verify
this. Surrey points were provided In the detention pond area, but not all facilities appear to
have been constructed. The following is a punch list of items for completion:
• Survey finished floor elevations, ground adjacent to building and away from the building
to prove that there is positive drainage away from the structure.
• Survey of the field Inlets and storm drain pipe, where possible, to verify substantial
conformance with design.
• Construction of water quality outlet structure for the detention pond (per details on
sheets 4 and 9 of the construction drawings).
• Raise detention pond berm to elevation 4937.40 to provide adequate freeboard
(existing Is 4936.94 near the church sign).
When these items are completed, Ayres Associates will be happy to complete a proper
drainage certification letter for the site.
Cc: Scott Brelsford, Alliance Construction Solutions, LLC
Fax:970-663-9760
Enginesrs/ScientlsWSumWors O:\oreincer EAS\eaMerFad2-17-04,DOC
3M JFK PerWay, Building 2, Suite 200, P.O. Box 270460. Fort Collins. CO 80527 32-0937.00
(970) 223-5556. FAX (970) 223-3578 Page I of 1