R930-3-12. Construction Off Right-of-Way

  Normally, noise walls built pursuant to this rule will be constructed within Department right-of-way and owned and maintained by the Department. There are cases in which Department right-of-way is not the most prudent location for noise barriers, yet noise abatement is still feasible and reasonable if built on adjacent property or adjacent public right-of-way. In these cases:

  (1) The Department's cost is limited to normal cost for abatement on Department right-of-way.

  (2) In no case shall the Department construct a noise barrier unless the adjacent property owners allow access and easements as necessary in order to construct and maintain the barrier.

TABLE 1- UDOT Noise Abatement Criteria (NAC)

(Hourly A- Weighted Sound Level decibels (dB(A)))

Activity UDOT Evaluation Activity

Category Criteria(1) Location Description

           Leq (h)

A 56 Exterior Lands on which serenity and

                                  quiet are of extraordinary

                                  significance and serve an

                                  important public need and

                                  where the preservation of

                                  those qualities is essential

                                  if the area is to continue to

                                  serve its intended purpose.

B 66 Exterior Residential

C 66 Exterior Active sports areas,

                                  amphitheaters, auditoriums,

                                  campgrounds, cemeteries, day

                                  care centers, hospitals,

                                  libraries, medical facilities,

                                  parks, picnic areas, places of

                                  worship, playgrounds, public

                                  meeting rooms, public or

                                  nonprofit institutional

                                  structures, radio studios,

                                  recording studios, recreation

                                  areas, Section 4(f) sites,

                                  schools, television studios,

                                  trails and trail crossings.

D 51 Interior Auditoriums, day care centers,

                                  hospitals, libraries, medical

                                  facilities, places of worship,

                                  public meeting rooms, public

                                  or nonprofit institutional

                                  structures, radio studios,

                                  recording studios, schools,

                                  and television studios.

E 71 Exterior Hotels, motels, offices,

                                  restaurants/bars, and other

                                  developed lands, properties or

                                  activities not included in A-D

                                  or F.

F No Limit - Agriculture, airports, bus

                                  yards, emergency services,

                                  industrial, logging,

                                  maintenance facilities,

                                  manufacturing, mining, rail

                                  yards, retail facilities,

                                  shipyards, utilities (water

                                  resources, water treatment,

                                  electrical), and warehousing.

G No Limit - Undeveloped lands that are not

                                  permitted.

(1) Hourly A-weighted sound level in decibels reflecting a

1 dBA "approach" value below 23 CFR 772 values.