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Home My WebLink AboutSite Certifications - 01/28/2002,L"O" & A" c. %ac, .,s1630s. ed&9, ;V. 0. Fax 270952 57mr ed4w, eO 80527 0970) 493-2808 ;iii 0970) 495- 9735 January 22, 2002 City of Fort Collins Stormwater Utility 700 Wood Street Fort Collins, CO 80526 RE: Drainage Certification for Lots 9A-9F, Harmony Ridge P.U.D. Dear Sirs: Ell On January 22, 2002, we observed the site located on Lots 9A-917 of the Harmony Ridge P.U.D. located west of Chokecherry Trail, north of Blue Sage Drive, and east of Morning Dove Lane The site appeared to be final graded except as noted below. In addition to our observation, Absolute Surveying obtained spot elevations at numerous spots throughout the site. Please refer to the attached elevation sheet. As there is no known final grading plan with spot elevations and individual drainage features, this letter describes how we saw the drainage patterns. • In general the east side of the buildings drained easterly to Chokecherry Trail, which directs runoff south and then west along Blue Sage Drive to the existing inlets. These inlets appeared plugged with debris at the time of the site visit. • The South side of the buildings (in particular, Lot 9A) appear to drain south directly to Blue Sage Drive. The area around the entrance and the sidewalk did not appear to be final graded. Three wood retaining walls 3-4 feet tall contain the slope on the south side of the buildings. • The west side of the buildings appear to drain westerly to a shallow depression or Swale that appears to direct runoff to the A8 pond. The entrance to the pond is not well defined. A cut ridge on the west side of the depression keeps the runoff from entering the A9 pond. Several spots along this westerly swale did not appear to be final graded, as small undulations seemed to exist. • A portion of the north side of the building drains easterly, but a majority of the north side drains westerly around the northwest corner of the buildings. The north side and northwest corner of the buildings (in particular Lot 9F) was not final graded. A series of retaining walls contained the slope on the northwest corner of the site. • Lots 9E and 9D shared entrance areas. Lot 9E contained a courtyard with a drain. The area and sidewalk south of Lot 9E garage sloped southerly towards Lot 9D. This may cause freezing on Lot 9D sidewalk. The sidewalk for Lot 9D entrance appeared to slope easterly, although survey points would be needed to verify the grade. A pipe exited near the southeast comer of Lot 9E underneath the sidewalk, which appears to be from the courtyard drain. • Lots 9C and 9B shared entrance areas. The area and sidewalk south of Lot 9C garage sloped southerly towards Lot 9B. This may cause freezing on Lot 9B sidewalk. The sidewalk for Lot 9B entrance appeared to slope easterly. A pipe exited near the southeast corner of Lot 9B underneath the sidewalk, which appears to be from the courtyard drain. • The sidewalks around lots 9E and 9C may not be ADA approved owing to their steep slopes. • The porch and the adjacent grading on the west side of Lot 9B appeared to be flat. • The riprap between the A8 and A9 ponds appeared to minimal. • The pipe inlet on the northwest corner of Morning Dove Lane was not visible. • The finished floor elevations appeared to be significantly different than those proposed on the grading plan by TST. • The proposed spot elevations given by Absolute Surveying appeared to be significantly different than the existing spot elevations given by Absolute Surveying. • The 100-year water surface of the upstream A10 pond (5131.5) and the A9 pond (5124.5) is higher than some of the spot elevations along the western property boundary and the buildings. • The buildings have garden levels and walkout basements that are not shown on the grading plan. Our recommendations were based on our observation on the dated noted above. If you have any questions, please contact me at the above address or phone number. Sincerely, James R. Loonan, P.E. ABSOLUTE SURVEYING, INC. Professional Land Surveyors 2881 N. Monroe Ave. Suite 3, Loveland, CO 80538 Phone: (970) 203-1552 Fax (970) 203-1443 January 18, 2002 Jay Barber City of Fort Collins 500 Wood Street RE: Grading Certification - Lot 9, Harmony Ridge PUD Dear Jay, STORMWATER RECEIVED JAN 18 2002 Attached, please find two copies of the survey portion of the grading certificate. Jim Loonan, of Loonan & Associates is reviewing and inspecting the property in the field and will be compiling the Letter of Conformance. Our client, Hagen Bros., has a closing set up for Tuesday, January 22, and is desirous of getting the Certificate of Occupancy before the closing, if at all possible. I will have Mr. Loonan fax you his letter of conformance to complete the grading certification packet. If you can tend to your review as soon as possible and be able to issue the certificate of occupancy before the Tuesday closing, that would be greatly appreciated. If you have any questions, or need additional information, please call at your earliest convenience. Sincerely, Mark Corbridge President • Accurate • Precise • Complete I I Lot 108 I 2700 S.F. 1 ' TRA�'T ' rn Spa, I TF = 36.50' I acYTLe'fL� I 2970'GA f a9 P f'n- x saes. ua 1.2R ;p \ 29.1e SAs `.72 'e \ ^,1 as '4FIN1 LOT 9F 29583 S.F. \ x 1r11 \ M1byy ~ - � \ s� 0 2,460 S.F \ M11 b� 46 20 0 20 40 GRAPHICS ALE — FEET SCALE 1" = 20' FLOOR I 1 I ❑WATER t EfER f T 33. WATER VALVE LOT LOT9D GARAGE ' \\ ry1a _ $ N FLOOR ( ZOs29 F, FINISNCARAOE 0 II�3 \ u o rn ';� I FW w 4b FINISH FLOOR Or lyew Y \ GARAGE I 8� 9B 1 \ LOT FINISH FLOOR 1 t� LA ' 9A FINISH FLOOR GARAGE y LOT \ f o ' 21.1g Or 4 NOTICE: According to Colorado law you must commence any legal action based upon any defect in this survey within three years after you first discover such defect. In no event, may any action based upon any defect In this survey be commenced more than ten years from the date of the certification shown hereon. 19.1 BLUE SAGE DRIVE GRADE CERTIFICA TION LOT 9A - LOT 9F, HARMONY RIDGE FI U.D. CITY OF FORT COLLINS LARIMER COUNTY, COLORADO LEGEND O FOUND #4 REBAR AND PLASTIC CAP L.S. 31169 X 34.12 EXISTING SPOT ELEVATIONS 0 (34.2) PROPOSED SPOT ELEVATION ❑ WATER METER PIT DRAINAGE DIRECTION n FIRE HYDRANT N WATER VALVE NOTES. ' 1) Elevations ore based on the City of Fort Collins vertical control benchmark on the North side of West Harmony road, 200 feet West of Chippendale Drive, on concrete base of a brick and mortar fence (Southwest corner of Regency Park Subdivision), benchmark #18-94, with a published elevation of 5116.60 feet. 2) Site benchmark is a #4 rebor and plastic cap L.S. 31169 at the Northwest corner of Lot 9, Harmony Ridge P.U.D., with an elevation of 5128.21 feet. ABSOLUTE SURVEYING, INCORPORATED ffessional Land Surveyors Phone (970) 203-1552 I I Lot 108 ---_�_-- 27Oo s.F. I I I e 1 Open SF'cf'e I Lot 1oa TF — 36.50' I \ L/tiCtly L>5'e7y(e'nt I 2920 S.F. T rage N. tit — bra YI.19. SNAlj-Ja • - \ 1�' e'� • aee --x.SFr�t7 _. �eea 130 \ 2e.7e 9.0 V_y, \ ,x P \ - \ if twi \ r3J \ o �+ \ Q� \ hryx LOT 9r 2,583 S.F. 74 \ GOI, 9 20 0 20 40 NyVap!GRAPHIC SCALE - E SCALE 1" = 20' NOTICE: According to Colorado law you must commence any legal action based upon any defect In this survey within three years after you first discover such defect. In no event, may any action based upon any defect In this survey be commenced more than ten years from the date of the certification shown hereon. FLOOR ❑ WATER rAEfER PR 33. 4 WATER \ 1 VALVE 1 3 �\ 32. 12 M ♦ o FINISH FLOO Lit l,vewaY GARAGE I QfJw ❑ 31. 6 WATER (METP ER orlvewaY FINISH FLOOR GARAGE V Lo"204 0 S F Ji � � 1 �J ar lvewaY T 9D nNISNG FLOOR 0' d . _ Or lVewaY _• 4 _ N LO 9C FINISH FLOOR I �, N 0.132 S.F. GARAGE'vi 1 z. o (p .n J1 4% 1 ' pYN w 5 L. LOT V3 I 2,460 5.F. FINISHGFLOOR ARAGE�OrI yew—Y 1 GRADE CERTIFICA TION LOT 9A — LOT 9F, HARMONY RIDGE Pe U.D. CITY OF FORT COLLINS LARIMER COUNTY, COLORADO LEGEND O FOUND #4 REBAR AND PLASTIC CAP L.S. 31169 H„a \ GOI, 9 20 0 20 40 NyVap!GRAPHIC SCALE - E SCALE 1" = 20' NOTICE: According to Colorado law you must commence any legal action based upon any defect In this survey within three years after you first discover such defect. In no event, may any action based upon any defect In this survey be commenced more than ten years from the date of the certification shown hereon. FLOOR ❑ WATER rAEfER PR 33. 4 WATER \ 1 VALVE 1 3 �\ 32. 12 M ♦ o FINISH FLOO Lit l,vewaY GARAGE I QfJw ❑ 31. 6 WATER (METP ER orlvewaY FINISH FLOOR GARAGE V Lo"204 0 S F Ji � � 1 �J ar lvewaY T 9D nNISNG FLOOR 0' d . _ Or lVewaY _• 4 _ N LO 9C FINISH FLOOR I �, N 0.132 S.F. GARAGE'vi 1 z. o (p .n J1 4% 1 ' pYN w 5 L. LOT V3 I 2,460 5.F. FINISHGFLOOR ARAGE�OrI yew—Y 1 GRADE CERTIFICA TION LOT 9A — LOT 9F, HARMONY RIDGE Pe U.D. CITY OF FORT COLLINS LARIMER COUNTY, COLORADO LEGEND O FOUND #4 REBAR AND PLASTIC CAP L.S. 31169 H„a x34.12 EXISTING SPOT ELEVATIONS 1y Q. A (34.2) PROPOSED SPOT ELEVATION F ❑ WATER METER PIT DRAINAGE DIRECTION FIRE HYDRANT N WATER VALVE U O U NOTES: 1) Elevations are based on the City of Fort Collins vertical control benchmark on the North side of West Harmony road, 200 feet West �6. 3 of Chippendale Drive, on concrete base of a brick and mortar fence u (Southwest corner of Regency Park Subdivision), benchmark #18-94, k with a published elevation of 5116.60 feet. u � 2) Site benchmark is a #4 rebar and plastic cap L.S. 31169 at the m Northwest corner of Lot 9, Harmony Ridge P.U.D., with an elevation of 5128.21 feet. 1 _- _ "- Vr 4a:y _--'- FINISH FLOOR lvewaY I Jj 9F\ EINISN BOOR OAMCE Ji 0 Z LOT .1 Ci S.F. "� z W BLUE SAGE DRIVE ABSOLUTE SURVEYING, INCORPORATED Professional Land Surveyors Phone (970) 203-1552 Ld 108 I I I 1 S'ITr��L I TF = 36.50' 1 tt1/ OP tt Lot IDA �,asP!! Lf'Tfl 29)a SF. a I 3e.2a WDDD flEF WA) \ 2e.9e 9.99 9 „ \ G 'e �'� \ \ •�' 2,583 S.F. .a \ �yx W \ ,k f LAI F' \" -2 \ 9`" Ln LOT \ g o 2,a6o FLOOR or v eway dip FINISH FLOOR \ \ ry^ayx try$\1 • $ - - -V ON T gC FINISH FLOOR GARA F. 2032 S.F. \ y O a9 ro FOOS ro \ 19.28x 20 0 20 40 GRAPHIC SCALE — FEET 19.13 SCALE 1" = 20' NOTICE: According to Colorado law you must commence any legal action based upon any defect In this survey within three years after you first discover such defect. In no event, may any action based upon any defect in this survey be commenced more than ten years from the date of the certification shown hereon. FINISH FLOOR OAMOE FINISH FLOOR GAME WATER VALVE I � I 0 tsway I 4 T 9B Tea ZO60 ~ "_-- or rveway "1 _-- FINISH FLOOR I 7j - GAME j,OT 9A FINISH ��ooGAMEo ,� No 2158 BLUE SAGE DRIVE GRADE CERTIFICA TION LOT 9A - LOT 9F, HARMONY RIDGE P. U.D. CITY OF FORT COLLINS LARIMER COUNTY, COLORADO LEGEND O FOUND #4 REBAR AND PLASTIC CAP L.S. 31169 •-i x 34.12 EXISTING SPOT ELEVATIONS a' 6(34.2) PROPOSED SPOT ELEVATION [� ❑ WATER METER PIT DRAINAGE DIRECTION CI FIRE HYDRANT N WATER VALVE r x O I x v NOTES: 1) Elevations are based on the City of Fort Collins vertical control benchmark on the North side of West Harmony road, 200 feet West 6. 3 of Chippendale Drive, on concrete base of a brick and mortar fence a: (Southwest corner of Regency Park Subdivision), benchmark #18-94, C with a published elevation of 5116.60 feet. u m 2) Site benchmark is a #4 rebar and plastic cap L.S. 31169 at the m Northwest corner of Lot 9, Harmony Ridge P.U.D., with an elevation of 5128.21 feet. 25919 ABSOLUTE SURVEYING, INCORPORATED Professional Land Surveyors Phone (970) 203-1552