Right-of-Way Width Versus Easement Width on a Rural Aerial Route
A utility is designing a 6.4 km aerial OSP route along a rural county road to serve a new industrial park. The designer has a 15 m (50 ft) public right-of-way dedicated to the county, but a recorded utility easement only 4.6 m (15 ft) wide centered on the road centerline. The proposed pole line runs 5.5 m (18 ft) from centerline, placing it inside the right-of-way but outside the recorded easement. Poles are 11 m (36 ft) Class 4 wood, 40 spans, with a 1.2 m (4 ft) separation from the road edge and a horizontal clearance of 4.3 m (14 ft) to a parallel 12.5 kV distribution line on the opposite side. The county requires a permit for any work within the right-of-way; the utility that owns the distribution line has joint-use rules requiring 1.8 m (6 ft) midspan separation from communication conductors. The client wants construction to start in 10 weeks and has not yet requested the county permit.
1. The designer argues that because the poles are inside the 15 m public right-of-way, no additional property interest is needed. Evaluate this position and identify the specific actions required before the design can be considered constructible.
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The argument conflates two different legal concepts. A public right-of-way grants the public a right of passage and typically allows a franchise or permit for utility occupancy, but it does not automatically convey the exclusive longitudinal property interest a pole line needs. The recorded 4.6 m easement is the only instrument that gives the utility a defensible right to occupy a specific strip; a pole at 5.5 m from centerline sits 0.9 m outside that easement. That gap is a title defect, not a clearance issue, and it must be resolved by one of three routes: negotiate an expanded easement or a new parallel easement from each affected parcel owner, relocate the pole line to within 4.6 m of centerline (which likely conflicts with the 1.2 m road-edge separation and the 4.3 m clearance to the distribution line), or obtain a franchise or license from the county that expressly authorizes the location.
Separately, the county permit is a hard prerequisite, not paperwork. A 10-week schedule with no permit application filed is unrealistic because review, possible traffic-control plan review, and any required pole attachment or joint-use approval add lead time. The designer should also confirm the joint-use separation: 4.3 m to the distribution line exceeds the 1.8 m midspan requirement, so that particular clearance is acceptable, but the final attachment height and sag must be verified at maximum operating temperature. The correct conclusion is that the route is not constructible as drawn: the easement must be widened or the alignment shifted, and the county permit must be initiated immediately with a realistic schedule contingency.
2. Assume the county grants a franchise but the affected landowners refuse to expand the easement. Describe how you would re-evaluate the alignment and what design trade-offs you would document.
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With a franchise in hand, the utility has a legal basis to occupy the right-of-way, but the franchise does not eliminate the need to check whether the pole line can physically fit within the constrained corridor. The designer should treat the 4.6 m easement as the preferred zone and test whether the poles can be moved to roughly 2.3 m from centerline while preserving the 1.2 m road-edge separation and any required clear zone. If the road edge is at 3.5 m from centerline, a pole at 2.3 m leaves only 1.2 m to the edge, which may violate the county's clear-zone or shoulder requirement. In that case the trade-off is either acquiring a small number of additional easements at the pinch points or increasing pole height and using a wider crossarm to shift conductors rather than poles.
Document the decision with a comparison table: alignment option, easement status per parcel, clearance to road edge, clearance to the distribution line, span length changes, and cost and schedule impact. Note that relocating poles changes span lengths and therefore sag and tension, which must be recalculated; a 40-span run with changed spans may need guying or a larger class of pole at transitions. Record the franchise conditions, any landowner agreements obtained, and the residual risk that a single holdout parcel forces a reroute. The judgment the exam is testing is that legal authority, physical fit, and structural design are three separate gates, and passing one does not satisfy the others.