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Title:

Toward Best Practices for Construction and Maintenance of Through-grade Culverts to Mitigate Pavement Roughness in Cold Climates

Accession Number:

01516753

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Culverts are used to preserve pavement embankments by draining water from the structures. However pavement roughness caused by excessive bumps, sags, and depressions at a culvert location are signs of failure or improper construction. Pavement roughness can adversely affect ride quality and create potentially unsafe driving conditions. The surface roughness at a culvert location can be caused by inadequate compaction of granular base material, erosion of the backfill or supporting materials, and/or differential frost heaving. The objective of this study is to recommend construction and maintenance solutions to mitigate bumps, sags, and depressions at through-grade culverts on Provincial Trunk Highways (PTH) and Provincial Roads (PR) in Manitoba. The study consisted of a review of the state of the art practices in culvert construction and maintenance; a survey questionnaire to obtain construction and performance history of through-grade culverts in Manitoba; and a forensic investigation and case study analysis of failed culverts with excessive bump, dip or sags. Culverts with minor or no pavement roughness were also investigated to identify design and construction elements that favor good performance. The results of the forensic investigation and recommended best practices construction and maintenance solutions to mitigate excessive pavement roughness at culverts are presented.

Supplemental Notes:

This paper was sponsored by TRB committee AFF70 Culverts and Hydraulic Structures. Alternate title: Toward Best Practices for Design, Construction, and Maintenance of Through-Grade Culverts to Mitigate Pavement Roughness in Cold Climates.

Monograph Accession #:

01503729

Report/Paper Numbers:

14-4728

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Kavanagh, Leonnie
Soliman, Haithem
Shalaby, Ahmed

Pagination:

17p

Publication Date:

2014

Conference:

Transportation Research Board 93rd Annual Meeting

Location: Washington DC
Date: 2014-1-12 to 2014-1-16
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Maps; Photos; References; Tables

Geographic Terms:

Manitoba

Subject Areas:

Bridges and other structures; Hydraulics and Hydrology; Pavements; I26: Water Run-off - Freeze-thaw

Source Data:

Transportation Research Board Annual Meeting 2014 Paper #14-4728

Files:

TRIS, TRB, ATRI

Created Date:

Jan 27 2014 3:39PM