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Home My WebLink AboutOAKRIDGE DRIVE EXTENSION - Filed STR-STREETS - 2005-05-04Transpor,-tion Services Engineering Department City of Fort Collins April 26, 1997 Mr Matthew J. Delich, P.E. Traffic and Transportation Engineering 2272 Glen Haven Drive Loveland, Colorado 80538 Dear Mr. Delich: This letter is in response to the variance request dated March 19, 1997 for a reduction in the centerline radius for the two curves on Oakridge Drive south of McMurry Avenue. The request to be allowed to reduce the centerline radius from the standard 610 feet (40 mph design speed) to a 240 foot radius (30 mph design speed) is granted for the first curve south of the intersection of Oakridge Drive and McMurry Ave Therequest to reduce the second curve (next curve south) is denied. In your letter you indicated that in your opinion Oakridge Drive between McMurry Avenue and Wheaton Drive should be posted for a speed of 30 mph. This does seem appropriate and therefore a 35 mph design (420 foot radius) will be allowed for the second curve to the south of McMurry. The plans for the Oakridge Drive Extension will need to be modified to show this design. This may also affect the Oakridge Business Park 26th Filing - Comfort Suites, if so these plans will also need to be modified to reflect the new design. If you have any questions regarding this, please contact me at (303) 221-6750. Sincerelv, / Vim" Sheri Wamhoff Civil Engineer II cc: The Sear Brown Group Stewarts and Associates File - Oakridge Drive Extension '_81 North Colle};e Acenuc • P.O. Rox SSO • Fort Collins, CO 80522-0580 • (970) 221-6605 7 LU 2 C0 0 m cD 0 rn X a 11 0 0 N m 0 rn w z 0 a Z 8 W W Z Z W Z 0 a 0 a Z Z a H U LL Q 2 F.. March 19, 1997 File: 9674LET1 Mr. Mike Herzig, P.E. Fort Collins Planning Department P.O. Box 580 Fort Collins, CO 80522 Dear Mike: This letter pertains to the request for a variance from the "Design Criteria and Standards for Streets" for the centerline radius of a collector street in the Oak Ridge Business Park. Oakridge Drive is proposed to have a centerline radius of 240 feet. There will be stop signs at its intersections with McMurray Drive and Wheaton Drive. This street is classified as a collector street. The posted speed limit on these streets is typically 30-35 mph. The standard centerline radius for a collector street, from the cited reference, is 610 feet. The design speed is 40 mph for this radius. Using the 240 foot radius, the calculated speed is 30 mph with an e + f value of 0.25. This is at the low end of the typical speed limits for collector streets. A posted speed of 30 mph is appropriate. This segment of Oakridge Drive will be busy, especially during the peak hours. The street segment. itself will only be 0.25-0.30 miles long with a number of driveway accesses. Speeds in excess of 30 mph are not expected. This calculated speed coinciding with the recommended speed limit leads to the conclusion that the variance to the 610 foot centerline radius should be approved. Care should be taken in landscaping and driveway locations so that sight lines are not jeopardized. The smaller proposed radius will not create a hazardous condition. If you have any questions, do not hesitate to contact me. Sincerely, Matthew J. Delich, J P.E. ! s 4 THE SEAR -BROWN GROUP FULL SERVICE DESIGN PROFESSIONALS Formerly RBD, Inc. MEMORANDUM TO: Sheri Wamhoff FROM: Patricia Kroetch�� SUBJECT: Oakridge Drive Comment Responses DATE: March 25, 1997 Engineering 1. The design has been revised. You will note on the profile that there is still a discrepancy between the plans that Stewart completed and our profile. This discrepancy is in the slope along the frontage of the Comfort Suites site and results from the survey information that we gathered at the existing Wheaton verses the information that Stewarts is using. I have the same elevations at the Comfort Suites entrance as the Stewart plans show. 2. Additional information was added at Wheaton. The curb returns are in but a portion of the north one will need to be replaced. 3. Variance request from Matt Delich is included. 4. Revised drive to match Stewart plans. 5. The sidewalks on McMurry are future and will be designed and constructed with the adjacent development. 6' We will dedicate any right-of-way that is not dedicated with the Comfort Suites. 7. Added the median across Wheaton on the striping plan. & Revised the striping as requested. 9. Added a note to construct ramps but not sidewalk. 10. The drive is to be constructed with Comfort Suites and is not a part of this project. 11. Removed reference to this detail as it does not pertain to this project. Stormwater 1. Submitting a drainage and erosion control plan that should address capacity concerns. PROJECT COMMENT SHEET City of Fort Collins Current Planning DATE: - 2 ,� DEPT: Engineering PROJECT: PLANNER: ENGINEER: BNo Problems — Problems or Concerns (see below or attached) \1 Fb�'SC �I�CC r�1�Kr� c- 1U,xif�1;� �JS-�-� �CC L s v lZ( . J ��SihtS,aL-� c�c5ctv�.t��0 t�vt-�i tad. AC Date: ignature: �— PLEASE SEND COPIES OF MARKED REVISIONS: ❑ PLAT ❑ SITE ❑ UTILITY ❑ LANDSCAPE PROJECT COMMENT SHEET City of Fort Collins Current Plannint DATE: ql�zCof qq DEPT: Engineering PROJECT: C)ALC I Y,-e DC �kr�N�td�J PLANNER: -— ENGINEER: panr > e� BNo Problems Problems or Concerns (see below or attached) Oakridge Drive Extension April 26, 1997 1 Need to provide detail D-18 for the intersection of Oakridge Drive and Wheaton Drive. The plans reference detail on sheet 7, but the only detail that is on there has the cross pan. 2 See attached letter regarding variance request for centerline radii. 3. The street intersection detail does need to reference Detail No. 4 and this detail needs to be provided as shown if a cold joint is to be used. Date: Signature: PLEASE SEND COPIES OF MARKED REVISIONS: ❑ PLAT ❑ SITE ❑ UTILITY ❑ LANDSCAPE PROJECT COMMENT SHEET City of Fort Collins Current Planninf DATE: DEPT: Engineering PROJECT~ v-2' . , PLANNER: ENGINEER: No Problems Problems or Concerns (see below or attached) Oakridge Drive - Wheaton Drive To McMurry Ave March 4, 1997 1 _ Your design is creating a drainage problem at the intersection of Oakridge drive and Wheaton Drive. A sump condition is being created and no inlets have been provided- This design is also different than that shown on Stewarts Plans. 2 Additional information needs to be provided at the intersection of Oakridge Drive and Wheaton Drive- Was Wheaton built according to the plans on file? What curb and gutter is in - is it all to remain? 3 The minimum cemerline radius for a collector is 610 feet. A variance request can be submitted with justification for this design. I don't know if it will be granted or not. 4 The access drive shown differs in width than that shown on Stewarts Plans. 5. Are the sidewalks shown on McMurry existing or future? 6_ Need to figure out how the Row for the road is to be dedicated. The Comfort Suites plans showed dedicating the full row along their property line. This will work_ I guess it depends on how you want to do it. (Continued on next page) Date: Signature: PLEASE SEND COPIES OF MARKED REVISIONS: 0. PLAT Q- SITE ,0 UTILITY 0 LANDSCAPE Oakridge Drive - Wheaton Drive To McMurry Ave (page 2 of 2) March 4, 1997 7 Show the full intersection of Oakridge and Wheaton_ Want to see where the median sits - want to make sure the lanes line up 8 The stripping should be as follows. 7 foot bike lanes, 12 foot travel and center lane. 9 Provide sidewalk ramp details as the curb returns need to be poured to accommodate the walks even if the sidewalk is not placed at this time. 10. Need a driveway detail if the access on the south is to be shown and installed with these plans. The intersection detail wont work for it also. 11 Provide detail no 4 - cold joint detail. 12. See plans for additional comments.