Temporal Development of Local Scour Around Bridge Pier

Shiv Kumar Yadav*, Shri Ram**
* Post Graduate Student, Civil Engineering Department, Madan Mohan Malaviya University of Technology, Gorakhpur (U.P.), India.
** Associate Professor, Civil Engineering Department, Madan Mohan Malaviya University of Technology, Gorakhpur (U.P.), India.
Periodicity:December - February'2015
DOI : https://doi.org/10.26634/jce.5.1.3137


When an alluvial stream is partially/fully obstructed by a bridge pier, scour takes place in the vicinity of the pier. Estimation of this scour depth is a major concern of bridge engineers. The underestimation of scour depth leads to unsafe design, while an overestimation leads to uneconomical design. Therefore, estimation of anticipated maximum scour depth for given design discharge is essential. Scour at bridge piers is mainly affected by pier, flow and sediment characteristics. On the basis of field investigations, many investigators have suggested criteria for assessing maximum scour depth around bridge pier in alluvial bed. These studies are mainly regarding scour around bridge piers at normal flow conditions. Adequate information in connection with scour at bridge pier at different depth of flow, piers size and sediment size is not available. From the observation, we found that scour depth goes on increasing with increase in pier diameter.Out of these, the effects of pier size and shape, and of the approach flow angle on scour depth are fairly well understood. The effects of flow depth and sediment non-uniformity on scour depth have been also studied in detail. In this paper, a method has been presented to estimate the time variation of scour depth with uniform and nonuniform sediments. The procedure has been developed for computing the time variation of scour depth which is based on the dimensional analysis, and considering the horse-shoe vortex system to be the main scouring agent.


Scour, Scour Depth, Design Scour, River, River Bed, Sediment.

How to Cite this Article?

Yadav,S,K., and ShriRam (2015). Temporal Development of Local Scour Around Bridge Pier. i-manager’s Journal on Civil Engineering, 5(1), 9-15. https://doi.org/10.26634/jce.5.1.3137


[1]. Breusers, H.N.C., Nicollet, G. and Shen, H.W., (1977). “Local scour around cylindrical piers,” Journal of Hydraulic Research, I.A.H.R., Vol. 15(3), pp. 211-252.
[2]. Chabert, J. and Engeldinger, P. (1956). “Etude des affouillement autour des Piles des ponts (Study on Scour around bridge piers),” Laboratoire National d'Hydraulique, Chatou.
[3]. Chang, H.H. (1988). “Fluvial processes in river engineering”, John Wiley and Sons, Inc., New York.
[4]. Dey, S. (1997). “Local scour at piers, part I: A review of development of research.” Int. J. Sediment Res., Vol. 12(2), pp. 23-46.
[5]. Dargahi, B. (1982). “Local Scouring around bridge piers –a review of practice and theory.” Bulletin no. 114, Hydraulics Laboratory, Research Institute of Technology, Stockholm, Sweden.
[6]. Ettema, R. (1976). “Influence of bed material gradation on local scour,” Report No. 124, School of Engineering, The University of Auckland, New Zealand.
[7]. Ettema, R. (1980). “Scour at Bridge Piers”, Report No. 216, School of Engrg., University of Auckland, Auckland, New Zeeland.
[8]. Graf, W.H. and Istiarto, I. (2002). “Flow pattern in Scour hole around a cylinder,” Journal of Hydraulic Research, Vol. 40, Issue 1,pp. 13-20.
[9]. Kothyari, U.C. (1990). “Local Scour Around Bridge Piers” Ph.D. thesis University of Roorkee, 1990.
[10]. Pagliara, S., (2007). “Influence of sediment gradation on scour downstream of block ramps.” Journal of Hydraulic Engineering, Vol.133(11), pp.1241-1248. [doi: 10.1061/(ASCE)0733-9429 133:11(1241)]
[11]. Melville, B.W. (1975). “Local Scour at Bridge Sites,” Report No. 117, University of Auckland, School of Engineering, New Zealand.
[12]. Melville, B.W. and Raudkivi, A.J. (1977). “Flow Characteristics in Local Scour at Bridge Piers,” Am. Soc. Civ. Eng., J. Hydr. Engg, Vol. 15(4), pp. 373-380.
[13]. Melville, B. W., and Coleman, S. E. (2000). Bridge scour, Water Resources Publications, Fort Collins, Colorado, USA.
[14]. ShriRam, and Lal, Pande B.B. (1997). “Local scour around bridge piers”. Journal of Water & Energy International, CBI & P, Vol. 54, No. 1, pp.36-45.
[15]. Wong, W.H. (1982). “Scour at bridge abutments,” Report No. 275, School of Engineering, The University of Auckland, New Zealand, 109 pp.
[16]. Yanmaz, A.M. and Altinbilek, D., (1991). “Study of time-dependent local scour around bridge piers,” J. Hydr. Engg. ASCE, Vol. 117(10), pp. 1247-1268.
If you have access to this article please login to view the article or kindly login to purchase the article

Purchase Instant Access

Single Article

North Americas,UK,
Middle East,Europe
India Rest of world
Pdf 35 35 200 20
Online 35 35 200 15
Pdf & Online 35 35 400 25

Options for accessing this content:
  • If you would like institutional access to this content, please recommend the title to your librarian.
    Library Recommendation Form
  • If you already have i-manager's user account: Login above and proceed to purchase the article.
  • New Users: Please register, then proceed to purchase the article.