Wyoming Administrative Code › Agency 045 - Transportation, Dept. of › Sub-Agency 0003 - General Agency, Board or Commission Rules › Chapter 30 - PROCEDURES FOR LOCALLY ESTABLISHING SPEED LIMITS › Appendix II - Standards and Procedures for Establishing Speed Limits on Wyoming Unpaved Roads › Section 1.5 - DECLARATION OF SPEED LIMIT

Current through July 13, 2024
Posted speed limits (other than statutory speed limits) on
					 Wyoming unpaved roads open to the public that have been established by this
					 procedure should be documented by a Declaration of Speed Limit form similar to
					 the form shown in Figure 1-4. A completed declaration of speed limit form is
					 shown in Figure 1-5. Note that any speed limit change from the statutory limits
					 shall be verified and sealed by a registered professional engineer in Wyoming.
					 The form, with appropriate background information should be presented to the
					 county commission where a resolution approving the proposed speed limit should
					 be approved. The resolution number should be added to the declaration of speed
					 limit form. The form is then returned to appropriate county officials so that
					 the necessary signing changes can be made. Enforcement of the new speed limit
					 cannot occur until the appropriate signs giving notice of the new speed limit
					 have been erected.
Counties can modify this declaration form to fit their
					 local needs. Counties should develop their own systems to record and save all
					 relevant information associated with the speed study and the resolution.
Figure 1-4 Declaration of Speed Limit Form for
					 Unpaved Roads
DECLARATION OF SPEED LIMIT ON UNPAVED ROADS
LOCATION:
Results of Engineering
					 Investigation
Method Used:
Summary of Results:
Recommendations:
Approved. ____________________ ___________________________
					 ___________
Professional Engineer P.E. Stamp Date
ORDER TO ESTABLISH RESTRICTED SPEED ZONE
The County Commission approves changing the speed limit to
					 miles per hour on the unpaved roadway section described above.
Resolution number: ____________________
Date: ____________________
Figure 1-5 Example of Completed Declaration of Speed
					 Limit Form for Unpaved Roads
DECLARATION OF SPEED LIMIT ON UNPAVED ROADS
LOCATION: County Road 700, Smart County, MP 16.1 to
					 26.1.
Method Used:
Visual inspection and engineering judgment. Free flow spot
					 speeds to determine 85th percentile speed and pace.
					 Standards for establishing speed limits on unpaved Wyoming roads were
					 followed.
Summary of Results:
The statutory speed limit is 55 mph. The
					 85th percentile speed is 43.9 mph with the upper
					 bound of the pace speed at 40.4 mph. There are 6.3 access points per mile and
					 the adjacent land-use is recreational/scenic.
Recommendations:
Because of the high number of access points and the
					 recreational/scenic land-use, it is recommended to declare a 40 mph speed
					 limit. Post at least two 40 mph speed limit signs at both ends of the roadway
					 section.
Approved ____________________ ___________________________
					 ______________
Professional Engineer P.E. Stamp Date
ORDER TO ESTABLISH RESTRICTED SPEED ZONE
The County Commission approves changing the speed limit to
40
miles per hour on the unpaved roadway section
					 described above.
Resolution number:
55555
Date:
July 1,
					 2011