Section 13-3 - Interstate Highways and Other Fully Access Controlled Roads (a) Crossing of the Right-of Way. - (i) Crossings shall be as close to perpendicular to the roadway centerline as practical.
- (ii) Vertical clearance between top of irrigation pipe and bottom of ditch or the natural ground shall be three (3) feet.
- (iii) Open ditches shall not be allowed between the NO ACCESS lines.
- (iv) Headgates, diversion boxes and the beginning and end of siphons, shall be located outside of the highway right-of-way.
- (V) Ditch rider or maintenance roads shall terminate at the R/W fence.
- (vi) Parallel encroachment of ditches within the R/W is not permitted.
- (vii) Overhead pipes or flumes shall not be permitted unless extenuating circumstances exist.
Any proposal from an Irrigation District for overhead piping across the highway R/W shall be submitted to the State Bridge Engineer for a design review.
The minimum vertical clearance above the high point of the roadway template shall be 20 feet.
The preferred method of crossing the highway R/W is the installation of a siphon with watertight joints.
- (viii) Under no circumstances shall irrigation water or irrigation waste water be conducted through highway drainage ditches or facilities.
- (ix) Bore pits shall be located as described in Section 106.12.
045-13 Wyo. Code R. § 13-3