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Town of Normal, Illinois. Committed to Service Excellence.

CHAPTER 10 - Design & Construction Standards for Bridges & Culverts

10.01 Introduction
10.02 Right-of-way Dedication
10.03 Design Standards
10.04 Town’s Participation in Cost
10.05 Specifications & Special Provisions

10.01 INTRODUCTION

Where streets or roadways in or adjacent to property in a subdivision crosses drainage ways, streams or creeks, or where bridges or culverts are otherwise proposed within the confines of a subdivision, or on the roadway adjacent thereto, they shall be designed and constructed in accordance with this chapter.

10.02 RIGHT-OF-WAY DEDICATION

Bridges and culverts shall be located in dedicated public right-of-way of sufficient width to permit the construction, operations, maintenance and replacement of the improvement within the confines of the easement of dedicated right-of-way without relocation or other unreasonable interference with other public utilities located therein.

10.03 DESIGN STANDARDS

  1. Bridges and culverts shall be of width comparable to the abutting street or roadway including sidewalks and trails.
     
  2. In the case of culverts under bridges or bridges over waterways, such crossing shall be of sufficient size to permit the volume of water reasonably expected from a 30-year rain on the area in the natural drainage area flowing into the stream if that area were developed to the types of uses and to the maximum density permitted by the then-existing Town zoning ordinance with respect to property within the corporate limits of the Town and the land use element of the Town's Comprehensive Plan for the areas outside the corporate limits.
     
  3. Bridges and culverts shall meet or exceed all applicable Town, Department of Transportation, Illinois Department of Natural Resources, other local, state or federal regulatory authority or accepted industry standards, whichever impose the most demanding requirements with respect to the preservation and protection of the public health, safety and welfare. Should the Town desire any of these improvements expanded or enlarged to meet anticipated growth, then the Town shall pay for the increment due to the expansion provided funds are available.

10.04 TOWN’S PARTICIPATION IN COST

  1. Bridges And Culverts. Where installation of a bridge or culvert of a larger capacity or width than required to serve land owned by the developer is required by the Town Council to serve growth in the vicinity of the development, the developer shall pay for only his/her portion of the total cost of construction with the balance to be paid by the Town, provided funds are available.
  2. Engineering Costs. The developer will be responsible for all engineering costs for design of bridges and culverts within his/her development.

10.05 SPECIFICATIONS & SPECIAL PROVISIONS

All bridges and culverts shall be constructed in accordance with all applicable sections of the Illinois Department of Transportation Standard Specifications for Road and Bridge Construction, the current edition as then modified, supplemented and amended by this Manual or the Town Engineer.

This page last modified 05/05/08.