HomeMy WebLinkAboutLIBERTY FARMS - FDP - 31-06A/B - SUBMITTAL DOCUMENTS - ROUND 1 - UTILITY PLANSPM��EERS
VARIANCE REQUEST
3400 WEST 1 6'" STREET
BUILDING 5, SUITE Z
GREELEY, 00 80634
(970) 378-6935, Fax (970) 37B-6997
WWW.DMWCIVILENGINEERS.COM
To: Sheri Langenberger, P.E.
Engineering Development Review Manager
City of Fort Collins
PO Box 580
Fort Collins, CO 80522-0580
From: Jade P. Miller, P.E.
DMW Civil Engineers, Inc.
Date: January 30, 2008
Project: Liberty Farms,
Fort Collins, Colorado
Project No. 0710.00-1-I13
On behalf of our client with the above referenced project, we are requesting a variance to
the City's Standard Design Criteria. Per the Larimer County Urban Area Street Standards
(LCUASS), Sec. 8.2.8.13, and Appendix I, Sec. 1.1.1, modem roundabouts shall be
designed to accommodate WB-67 trucks. The proposed roundabout accommodates a
WB-67 truck turning southbound to westbound, and turning eastbound to northbound. All
other turns accommodate a WB-50 truck.
The substandard roundabout design for this project is predicated on several factors. First,
the west and north legs of the roundabout are minor arterial roads while the east and south
legs are local connectors. Per LCUASS Sec. 8.2.8.0 a WB-50 truck is the design vehicle
for an Arterial/Connector intersection. This roundabout accommodates a WB-50 truck for
all Arterial -Connector and Connector -Connector turns. The roundabout also
accommodates a WB-67 for the two Arterial -Arterial turns. Second, the geometry is
restrictedbased upon site characteristics and the City's Master Street Plan. Third, this
roundabout design was discussed and approved at the January 24, 2008 Transportation
Coordination meeting.
In conclusion, full compliance with the Standard Design Criteria would impose undue
hardship in developing the site. It is our opinion that the proposed design will adequately
meet the intent of the standards for the health, safety and welfare of the public.