HomeMy WebLinkAboutFORT COLLINS SUPPORTIVE HOUSING - FDP - 08-07/A - SUBMITTAL DOCUMENTS - ROUND 1 - VARIANCE REQUESTr
May 25. 2007
City of Fort Collins- ftansportation Department
215 North Mason Street
Fort Collins. CO 80527
Re: Variance Request -Right Turn Lane Length for Fort Collins Supportive Rousing
Project
Oc vex
This is a written request for variance on the required length of right turn lane off of Harmony
Road onto the. Port Collins Supportive Housing Project.
Standard to he Varied:
Per LCUASS (Larimer County Urban Area Street Standards) Chapler 8, Section 8 2.6
and Fi-ore 8=57 the..design right -turn lane length is 435 ft. including a 200 ft bay taper, for
a highway design speed of 50 mph,
Proposed Alternate.Design:
We are requesting approval of the standard's distance of 415 fi to be 420 ft for the.righi-
turn lane design length including the 200 ft bay taper.
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Comparing to Standard:
Our proposed right -turn lane length of 420 ft is slightly shorter than the standard length
of 435 ft by 15 ft.
Justification for the Variance:
The Standards right -turn lane .length of 435 ft is based on approaches to. stop sign
controlled and signaled intersections, allowing appropriate vehicle storage and
deceleration lengths. Tile proposed right -turn lane into the Fort Collins Supportive
Housing development is mid block, does not occur at a. stop -sign controlled or signaled
intersection and vehicleswill be. able to enter the :site without completely stoppinlg.
Additionally, Delich.Associates, the traffic engineer for this Project, noted that while the
435 foot right -turn length would be standard for the 50 mph design speed for this
location, at the actual posted speed of 45 mph, the 420 foot right turn leny-th would only
require 375 foot length. Delich Associates concluded that the current design of a 420 ft
right -turn lane will function efficiently and will not be detrimental to the public health,
welfare, and safety. The 420 foot length design also will not cause, additional
maintenance costs.
We look forward to your response and approval cif this proposed variance for the Fort Collins
Supportive Housing.
Sincerely.
Gregory A Geks, P.l.:,
Jobs;06085 F-C Supportive I IMIsi,1603 Owgnim_'_007" OS'S Front Plan Submittal to UistvIe"Ai!lhl Tum t_nnc Vafkmce
Request.doc
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