1. Akhlaghi, E., Babarsad, M.S., Derikvand, E., and Abedini, M., 2020. Assessment of the effects of different parameters on scour around single piers and pile groups: A review. Archives of Computational Methods in Engineering, 27(1), pp. 1–25. https://doi.org/10.1007/s11831-018-09304-w
2. Aleksandrova, N., Emmanouil, A., and Van Duren, L., 2023. Scale model testing of eco-friendly scour protections for offshore foundations and cables. In ICSE-11 Proceedings, International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE): Copenhagen, Denmark. https://www.issmge.org/publications/publication/scale-model-testing-of-eco-friendly-scour-protections-for-offshore-foundations-and-cables
3. Abdelhaleem, F.S.F., 2019, Roughened bridge piers as a scour countermeasure under clear water conditions. ISH Journal of Hydraulic Engineering, 25(1), pp. 94–103. https://doi.org/10.1080/09715010.2017.1420498
4. Abd El-Razek, M., El-Motaleb, M.A., and Bayoumy, M., 2003. Scour reduction around bridge piers using internal openings through the pier. Alexandria Engineering Journal, 42(2), pp. 241–248. https://www.researchgate.net/publication/268378292
5. Arneson, L.A., Zevenbergen, L.W., Lagasse, P.F., Clopper, P.E., 2012. Evaluating Scour at Bridges; National Highway Institute: Washington, DC, USA. https://rosap.ntl.bts.gov/view/dot/42053
6. Abd El-Hady Rady, R., 2020. Prediction of local scour around bridge piers: artificial-intelligence-based modeling versus conventional regression methods. Applied Water Science, 10(2), p.57. https://doi.org/10.1007/s13201-020-1140-4
7. Alizadeh E., Qaderi K., Gishinzade F., Madadi M.R., 2024. The effect of abutment geometry and application of submerged vanes on bridge abutment scour, Iranian Water Research Journal, 18(4), pp. 67-78. [In Persian].doi: 10.22034/iwrj.2025.14692.2586
8. Bento, A.M., Gomes, A., Viseu, T., Couto, L., and Pêgo, J.P., 2020. Risk-based methodology for scour analysis at bridge foundations. Engineering Structures, 223, pp.111-115. https://doi.org/10.1016/j.engstruct.2020.111115
9. Badir, Z., Asadi-aghbolaghi, M., and Ghanbari-adivi, E., 2026. Experimental investigation of the effect of wedge-shaped debris on scour depth of square-shaped bridge piers. Iranian Water Research Journal, 19(59), pp. 19-38. [In Persian]. 10.22034/IWRJ.2025.15163.2675
10. Bento, A.M., Minh, T.Q., Ferradosa, T., Sousa, H.S., Nguyen, H.X., and Campos e Matos, J., 2023. Study on the model to determine riverbed scour and the influence of bridge construction on riverbed deformation. Olympiad in Engineering Science (pp. 69-76). Cham: Springer Nature Switzerland.https://doi.org/10.1007/978-3-031-49723-0_5
11. Baranwal, A., Das, B.S., and Choudhary, A., 2021. Bridge pier scour depth prediction model -a review. Proceedings of the International Conference on Hydraulics, Water Resources and Coastal Engineering, Singapore: Springer Nature Singapore, pp. 75-88. https://doi.org/10.1007/978-981-19-9151-6_7
12. Baranwal, A., and Das, B.S., 2024. Scouring around bridge pier: A comprehensive analysis of scour depth predictive equations for clear-water and live-bed scouring conditions. AQUA – Water Infrastructure, Ecosystems and Society, 73(3), pp. 424–452. https://doi.org/10.2166/aqua.2024.235
13. Baranwal, A., Das, B.S., and Setia, B., 2023. A comparative study of scour around various shaped bridge piers. Engineering Research Express, 5, pp. 015052. 10.1088/2631-8695/acbfa1
14. Bharadwaj, M.R., Gupta, L.K., Pandey, M., and Valyrakis, M., 2025. Countermeasures for local scour around the bridge pier: A review. Acta Geophysica, 73(1), pp. 701-728. https://doi.org/10.1007/s11600-024-01361-z
15. Bezuijen, A., and Pilarczyk, K.W., 2012. Geosynthetics in hydraulic and coastal engineering: filters, revetments and sand filled structures. In EuroGeo5-2012, 5th European Geosynthetics Congress, Ghent University, Department of Civil Engineering, pp. 65–80. http://hdl.handle.net/1854/LU-2999048
16. Bestawy, A., Eltahawy, T., Alsaluli, A., Almaliki, A., and Alqurashi, M., 2020. Reduction of local scour around a bridge pier by using different shapes of pier slots and collars. Water Science and Technology: Water Supply, 20(3), pp. 1006–1015. https://doi.org/10.2166/ws.2020.022
17. Baghbadorani, D.A., Ataie-Ashtiani, B., Beheshti, A., Hadjzaman, M. and Jamali, M., 2018. Prediction of current-induced local scour around complex piers: Review, revisit, and integration. Coastal Engineering, 133, pp. 43-58. https://doi.org/10.1016/j.coastaleng.2017.12.006
18. Breusers, H.N.C., Nicollet, G., and Shen, H.W., 1977. Erosion locale autour des piles cylindriques. Journal of Hydraulic Research, 15(3), pp. 211-252. https://doi.org/10.1080/00221687709499645
19. Chiew, Y., and Lim, S., 2003. Protection of bridge piers using a sacrificial sill. Proceedings of the Institution of Civil Engineers – Water and Maritime Engineering, 156(1), pp. 53–62. Thomas Telford Ltd. https://doi.org/10.1680/wame.2003.156.1.53
20. Chiew, Y.M., 1984. Local scour at bridge piers. Doctoral Dissertation, University of Auckland. https://hdl.handle.net/2292/2520
21. Chiew, Y.M., 1995. Mechanics of riprap failure at bridge piers. Journal of Hydraulic Engineering, 121(6), pp. 635-643. https://doi.org/10.1061/(ASCE)0733-9429(1995)121:9(635)
22. Chiew, Y.M., 2002. Failure Mechanisms of Riprap Layer Around Bridge Piers. In Proceedings of the First International Conference on Scour of Foundations, Texas A and M University, College Station, TX, USA, 17–20 November 2002, pp. 70–91. https://henry.baw.de/server/api/core/bitstreams/f8327fd8-135a-4cf4-9260-0412a882c445/content
23. Chiew, Y.M., 2004. Local scour and riprap stability at bridge piers in a degrading channel. Journal of Hydraulic Engineering, 130(3), pp. 218-226. https://doi.org/10.1061/(ASCE)0733-9429(2004)130:3(218)
24. Chiew, Y. M., 1992. Scour protection at bridge piers. Journal of Hydraulic Engineering, 118(9), pp. 1260–1269. https://doi.org/10.1061/(ASCE)0733-9429(1992)118:9(1260)
25. Choi, S.U., and Choi, S., 2022. Prediction of local scour around bridge piers in the cohesive bed using support vector machines. KSCE Journal of Civil Engineering, 26(5), pp. 2174-2182. https://doi.org/10.1007/s12205-022-1803-9
26. Chen, X., Zhang, X., Liu, X., Zhang, F., Yan, J., and Wang, H., 2022. Experimental Study of Scour Characteristics and Scour Hole Dimensions in Consolidated Silt Sediment under a Current. Ocean Engineering, 266, pp. 112801. 10.1016/j.oceaneng.2022.112801
27. Chenxi, Q., Lunliang, D., Duoyin, W., Jianting, Z., Bingchuan, D., and Hao, F., 2024. Experimental Study on Silty Seabed Scour around the Single Pile Induced by the Current. Ocean Engineering, 293, pp. 116680. 10.1016/j.oceaneng.2024.116680
28. Chibana, T., Quiocho, R. and Watanabe, K., 2022. Role of Grain Size Distribution and Pier Aspect Ratio in Scouring and Sorting around Bridge Piers. Water, 14, pp. 2066. 10.3390/w14132066
29. Corvaro, S., Marini, F., Mancinelli, A., and Lorenzoni, C., 2018. Scour protection around a single slender pile exposed to waves. Coastal Engineering Proceedings, 36, pp. 6. 10.9753/icce.v36.papers.6
30. Chen, S.C., Tfwala, S., Wu, T. Y., Chan, H.C., and Chou, H.T., 2018. A hooked collar for bridge piers protection: Flow fields and scour. Water, 10(9), pp. 1–12. https://doi.org/10.3390/w10091251
31. Chooplou, C.A., Vaghefi, M., and Akbari, M., 2023. Effect of repositioned submerged vanes on local scour variations around a pier in a bend: experimental investigation. International Journal of Environmental Science and Technology, 20(8), pp. 8627-8640. https://doi.org/10.1007/s13762-023-05031-3
32. Clopper, P.E., Lagasse, P.F., and Zevenbergen, L.W., 2007. Bridge pier scour countermeasures. In World Environmental and Water Resources Congress 2007: Restoring Our Natural Habitat, pp. 1–13. https://doi.org/10.1061/40927(243)380
33. Chambel, J., Fazeres-Ferradosa, T., Miranda, F., Bento, A. M., Taveira-Pinto, F. and Lomonaco, P., 2024. A comprehensive review on scour and scour protections for complex bottom-fixed offshore and marine renewable energy foundations. Ocean Engineering, 304, pp. 117829. 10.1016/j.oceaneng.2024.117829
34. Deng, L., Wang, W., and Yu, Y., 2016 .State-of-the-art review on the causes and mechanisms of bridge collapse. Journal of Performance of Constructed Facilities, 30(2), pp. 04015005. 10.1061/(ASCE)CF.1943-5509.0000731
35. Dang, N.M., Tran Anh, D., and Dang, T.D., 2021. ANN optimized by PSO and Firefly algorithms for predicting scour depths around bridge piers. Engineering with Computers, 37(1), pp. 293-303. https://doi.org/10.1007/s00366-019-00824-y
36. Das, S., Das, R., and Mazumdar, A., 2014. Vorticity and Circulation of Horseshoe Vortex in Equilibrium Scour Holes at Different Piers. Journal of the Institution of Engineers (India) Ser A, 95, pp. 109–115. https://doi.org/10.1007/s40030-014-0078-7
37. Daneshfaraz, R., Karajabad, M.S., Alinejad, B. and Asl, M.M., 2021a. Experimental investigation of the effects of flow discharge on the scour rate around the groups of bridge piers with a rough surface in the presence of aggregate extraction pits. Journal of Water and Soil Science, 24(4), pp. 111-125. [In Persian].10.47176/Journal of Water and Soil Science.24.4.37953
38. Daneshfaraz, R., Ghaderi, A., Sattariyan, M., Alinejad, B., Asl, M.M., and Di Francesco, S., 2021b. Investigation of local scouring around hydrodynamic and circular pile groups under the influence of river material harvesting pits. Water, 13(16), p. 2192. https://doi.org/10.3390/w13162192
39. Duan, B., Wang, D., Qin, C., and Duan, L., 2025. Local Scour Around Marine Structures: A comprehensive review of influencing factors, prediction methods, and future directions. Buildings, 15(12), p.2125. 10.3390/buildings15122125
40. De Vos, L., De Rouck, J., Troch, P., and Frigaard, P., 2011. Empirical design of scour protections around monopile foundations. Coast Engineering, 58, pp. 540–543. https://doi.org/10.1016/j.coastaleng.2011.02.001
41. De Vos, L., De Rouck, J., Troch, P. and Frigaard, P., 2012. Empirical design of scour protections around monopile foundations. Part 2: Dynamic approach. Coast Engineering, 60, pp. 286–298. https://doi.org/10.1016/j.coastaleng.2011.11.001
42. Dey, S., Sumer, B.M., and Fredsøe, J., 2006. Control of scour at vertical circular piles under waves and current. Journal of Geotechnical and Geoenvironmental Engineering, 132(3), pp. 270–279. https://doi.org/10.1080/09715010.2017.1420498
43. Ettema, R., Melville, B.W., and Barkdoll, B., 1998. Scale effect in pier scour experiments. Journal of Hydraulic Engineering, 124, pp.639–642. https://doi.org/10.1061/(ASCE)0733-9429(1998)124:6(639)
44. Ettema, R., 1980, Scour at Bridge Piers. PhD dissertation, The University of Auckland, Auckland.
45. Ettmer, B., Orth, F. and Link, O., 2015, Live-bed scour at bridge piers in a lightweight polystyrene bed. Journal of Hydraulic Engineering, 141, pp. 04015017. https://doi.org/10.1061/(ASCE)HY.1943-7900.0001025
46. Froehlich, D.C., 2013 .Protecting bridge piers with loose rock riprap. Journal of Applied Water Engineering and Research, 1(1), pp. 39–57. https://doi.org/10.1080/23249676.2013.828486
47. Fael, C., Lança, R. and Cardoso, A., 2016. Effect of pier shape and pier alignment on the equilibrium scour depth at single piers. International Journal of Sediment Research, 31, pp. 244–250. https://doi.org/10.1016/j.ijsrc.2016.04.001
48. Farooq, R., and Ghumman, A.R., 2019. Impact assessment of pier shape and modifications on scouring around bridge pier. Water (Switzerland), 11, pp. 14–20. 10.3390/w11091761
49. Farooq, R., Ghumman, A.R., Tariq, M.A.U.R., Ahmed, A., and Jadoon, K.Z., 2020. Optimal octagonal hooked collar countermeasure to reduce scour around a single bridge pier. Period Polytech Civ Eng, 64(4), pp. 1026–1037. https://doi.org/10.3311/PPci.15966
50. Farooq, R., Azimi, A.H., Tariq, M.A.U.R. and Ahmed, A., 2023. Effects of hooked-collar on the local scour around a lenticular bridge pier. International Journal of Sediment Research, 38(1), pp. 1–11. https://doi.org/10.1016/j.ijsrc.2022.07.002
51. Fredsøe, J., Sumer, B.M., and Bundgaard, K., 2001. Scour at a riprap revetment in currents. In Proceedings of the 2nd IAHR Symposium on River, Coastal and Estuarine Morphodynamics, Obihiro, Japan, 10–14 September 2001, pp. 245–254. https://orbit.dtu.dk/en/publications/scour-at-a-riprap-revetment-in-currents/
52. Ferraro, D., Fenocchi, A., and Gaudio, R., 2020. Hydrodynamics of a bordered collar as a countermeasure against pier scouring: Hydrodynamics countermeasure scouring. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 476, pp. 20200393. https://doi.org/10.1098/rspa.2020.0393
53. Frahadi, S., Asadi-Aghbolaghi, M., Ghanbari-Adivi, E., and Raeisi, A., 2025. Study of the effect of subsurface slot on reducing scour at the base of a square nose bridge. Advanced Technologies in Water Efficiency, 5 (1), pp. 16-34. [In Persian]. https://doi.org/ 10.22126/atwe.2024.11120.1138
54. Fazeres-Ferradosa, T., Chambel, J., Taveira-Pinto, F., Rosa-Santos, P., Giannini, G., and Haerens, P., 2021. Scour protections for offshore foundations of marine energy harvesting technologies: A review. Journal of Marine Science and Engineering, 9, pp. 297. https://doi.org/10.3390/jmse9030297
55. Gilja, G., Kuspilić, N., and Bekić, D., 2011. Impact of morphodynamical changes on the bridge stability: Case study of Jakuševac bridge in Zagreb. In: Sawicki, J.M. and Zima, P. Current Events in Hydraulic Engineering. Gdansk University of Technology, Gdansk, Poland, pp. 112–122. https://www.croris.hr/crosbi/publikacija/prilog-knjiga/44122
56. Ghanbari Adivi, E., and Kashfi‑Pour, S.M., 2016. Estimating scour depth around bridge piers using the integration of empirical models with the FASTER numerical model. Water Resources Engineering Scientific, 9(31), pp. 1-10. [In Persian]. 20.1001.1.20086377.1395.9.31.1.8
57. Ghanbari Adivi, E., Shafaei Bajestan, M., Saghi, M., 2013. Laboratory study of the stability of riprap bed materials at river confluences. Journal of Water and Soil Knowledge, 24(1), pp. 69-83. [In Persian].
58. Geo-institute., 2009. The problem of scour, Retrieved February 1, 2009, fromhttps://ceprofs.civil.tamu.edu/gbiscontin/erosion-gi/index.html.
59. Gazi, A.H., and Afzal, M.S., 2020. A review on hydrodynamics of horseshoe vortex at a vertical cylinder mounted on a flat bed and its implication to scour. Acta Geophysica, 68(3), pp. 861–875. https://doi.org/10.1007/s11600-020-00439-8
60. Gazi, A.H., Afzal, M.S. and Dey, S., 2019. Scour around piers under waves: Current status of research and its future prospect. Water, 11(11), p. 2212. 10.3390/w11112212
61. Gokmener, S., Gogus, M., and Altan-Sakarya, A.B., 2025. Effects of collars in reducing local scour depth around bridge abutments under unsteady flow conditions. Acta Geophysica, 73(1), pp. 729-753. https://doi.org/10.1007/s11600-024-01363-x
62. Grüne, J., Sparboom, U., Oumeraci, H., Schmidt-Koppenhagen, R., and Wang, Z., 2007. Untersuchungen zur Stabilität von Geotextilen Sandcontainern unter Seegang und die Anwendung für den Kolkschutz von Tragkonstruktionen für Offshore-Windenergieanlagen. In FZK-Kolloquium Küstenschutz und Seebau, Hannover. https://www.fzk.uni-hannover.de/fileadmin/fzk/publications/024_FZK_Sandcontainer_Gruene.pdf
63. Gaudio, R., Tafarojnoruz, A., and Calomino, F., 2012. Combined flow-altering countermeasures against bridge pier scour. Journal of Hydraulic Research, 50(1), pp. 35–43. https://doi.org/10.1080/00221686.2011.649548
64. Grimaldi, C., Gaudio, R., Calomino, F., and Cardoso, A.H., 2009. Countermeasures against local scouring at bridge piers: Slot and combined system of slot and bed sill. Journal of Hydraulic Engineering, 135(5), pp. 425–431. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000035
65. Ghorbani, B., and Kells, J.A., 2008. Effect of submerged vanes on the scour occurring at a cylindrical pier. Journal of Hydraulic Research, 46(5), pp. 610–619. https://doi.org/10.3826/jhr.2008.3003
66. Garg, V., Setia, B., and Verma, D.V.S., 2008. Combination of scour protection devices around oblong bridge pier. ISH Journal of Hydraulic Engineering, 14(3), pp. 56–68. https://doi.org/10.1080/09715010.2008.10514922
67. Gupta, L.K., Pandey, M., Raj, P.A., and Pu, J.H., 2023a. Scour reduction around bridge pier using the airfoil-shaped collar. Hydrology, 10(4), p. 77. https://doi.org/10.3390/hydrology10040077
68. Gupta, L.K., Pandey, M., and Anand Raj, P., 2023b. Numerical simulation of local scour around the pier with and without airfoil collar (AFC) using FLOW-3D. Environmental Fluid Mechanics, 24(4), pp. 631-649. https://doi.org/10.1007/s10652-023-09932-2
69. Gupta, L.K., Pandey, M., and Raj, P.A., 2023c. Impact of airfoil collar on scour reduction around the bridge pier. Ocean Engineering, 290, p. 116271. 10.1016/j.oceaneng.2023.116271
70. Gao, D., Posada, G., and Nordin, C.F., 1993. Pier scour equations used in China. Hydraulic engineering (pp. 1031-1036). ASCE. https://rosap.ntl.bts.gov/view/dot/855
71. Hamidi, M., Koohsari, A., and Khalili, A.M., 2024. Numerical investigation of mining pit effects on maximum scour depth around bridge pier with different shape. Modeling Earth Systems and Environment, 10(4), pp. 5189-5203. https://doi.org/10.1007/s40808-024-02057-5
72. Huber, F., 1991 .Update: Bridge Scour. Civil Engineering (ASCE), 61(9), pp.62–63. Also HW Shen and VR Schneider, ASCE National Meeting, Transportation Engineering, Boston, USA, Paper No.1238 (1970). https://www.semanticscholar.org/paper/UPDATE%3A-BRIDGE-SCOUR-Huber/2d0bcd54c53b36a49198189368efd26d2d2a529f
73. Heidarpour, M., Afzalimehr, H., and Izadinia, E., 2010. Reduction of local scour around bridge pier groups using collars. International Journal of Sediment Research, 25, pp. 411–422. https://doi.org/10.1016/S1001-6279(11)60008-5
74. Habib, I.A., Wan Mohtar, W.H.M., Shahot, K.M., El-Shafie, A., and Abd Manan, T.S., 2021. Bridge failure prevention: An overview of self-protected pier as flow-altering countermeasures for scour protection. Civil Engineering Infrastructures Journal, 54(1), pp. 1–22. 10.22059/ceij.2020.292296.1627
75. Hajikandi, H., and Golnabi, M., 2018. October. Y-shaped and T-shaped slots in river bridge piers as scour countermeasures. In Proceedings of the Institution of Civil Engineers-Water Management (Vol. 171, No. 5, pp. 253-263). https://doi.org/10.1680/jwama.16.00063
76. Hamidifar, H., Shahabi-Haghighi, S.M.B.. and Chiew, Y.M., 2022. Collar performance in bridge pier scour with debris accumulation. International Journal of Sediment Research, 37(3), pp. 328-334. 10.1016/j.ijsrc.2021.10.002
77. Harasti, A., Gilja, G., Potočki, K., and Lacko, M., 2021. Scour at bridge piers protected by the riprap sloping structure: A review. Water, 13(24), p. 3606. https://doi.org/10.3390/w13243606
78. Heibaum, M., and Trentmann, J., 2010. Partial grouted riprap for enhanced scour resistance. In Scour and Erosion, pp. 1-10. https://doi.org/10.1061/41147(392)1
79. Heibaum, M., 2004, November, Geotechnical filters – The important link in scour protection. In Proceedings of the 2nd International Conference on Scour and Erosion. https://www.researchgate.net/publication/272576993_Geotechnical_filters_-_the_important_link_in_scour_protection
80. Heibaum, M., 2006. The use of geosynthetics in scour protection. In 3rd International Conference on Scour and Erosion (ICSE-3); Verheij, HJ, Hoffmans, GJ, Eds. https://izw.baw.de/publikationen/tc213/0/third_icse_contributions.pdf
81. Hong, J.H., Chiew, Y.M., Lu, J.Y., Lai, J.S., Lin, Y.B., 2012. Houfeng bridge failure in Taiwan. Journal of Hydraulic Engineering, 138(2), pp. 186–198. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000430
82. Hancu, S., 1971. Sur le calcul des affouillements locaux dams la zone des piles des ponts. In Proceedings of the 14th IAHR congress, Paris, France (Vol. 3, No. 1, pp. 299-313). https://books.google.com/books/about/Fourteenth_Congress_of_the_International.html?id=tpvPGVtzbt0C
83. Inoue, T., Hirotsugu, Y., Kashiwada, J., and Nihei, Y., 2025. Interaction between horseshoe vortex structure and sediment transport around a river rectangular pier using a solid-liquid two-phase turbulent LES model. International Journal of Multiphase Flow, 186, pp. 105153. 10.1016/j.ijmultiphaseflow.2025.105153
84. Ismael, A., Gunal, M., and Hussein, H., 2015. Effect of bridge pier position on scour reduction according to flow direction. Arabian Journal for Science and Engineering, 40(6), pp. 1579-1590. https://doi.org/10.1007/s13369-015-1625-x
85. Izadinia, E., and Heidarpour, M., 2022. Parametric study for hydraulic design of air-bubble injections to control scour around circular bridge piers. ISH Journal of Hydraulic Engineering, 29(3), pp.281-288. https://doi.org/10.1080/09715010.2022.2058331
86. Jazaeri, S.A., Nistor, I., Mohammadian, A., and Liu, X., 2024. A critical review on the tsunami-induced scour around structures. Coastal Engineering Journal, 66(3), pp. 563-590. https://doi.org/10.1080/21664250.2024.2380158
87. Jahangirzadeh, A., Basser, H., Akib, S., Karami, H. Naji, S., 2014. Experi mental and numerical investigation of the effect of different shapes of collars on the reduction of scour around a single bridge pier. PLoS ONE 9(6):e98592. https://doi.org/10.1371/journal.pone.0098592
88. Jain, S.C., and Fischer, E.E., 1979. Scour around circular bridge piers at high Froude numbers.
89. Jain, S.C., 1981. Maximum clear-water scour around circular piers. Journal of the Hydraulics Division, 107(5), pp.611-626. https://doi.org/10.1061/JYCEAJ.0005667
90. Kumar, A., 2017. Three-dimensional flow measurements at circular pier. In: Proceedings of Hydraulic Measurements, pp. 397–406. https://doi.org/10.1007/978-3-319-55125-8_34
91. Kumar, L., and Afzal, M.S., 2024. Estimating pier scour depth under combined waves and current using boosting machine-learning models. Acta Geophysica, 72(3), pp.1895-1911. https://doi.org/10.1007/s11600-023-01089-2
92. Kumar, V., Raju, K.G.R., and Vittal, N., 1999. Reduction of local scour around bridge piers using slots and collars. Journal of Hydraulic Engineering, 125(12), pp. 1302–1305. https://doi.org/10.1061/(ASCE)0733-9429(1999)125:12(1302)
93. Khosravi-Hamouleh, M., and Ghanbari Adivi, E., 2026. Baffle Structure in Water Engineering: A Review of Applications, Challenges, and Innovative Methods in Flow Control and Flood Management. Journal of New Approaches in Water Engineering and Environment, 5(3), pp. 37-72. [In Persian].https://doi.org/10.22034/nawee.2025.553107.1171
94. Kaveh, K., Mai, D.N., Pham, Q.B., and Anh, D.T., 2021. A hybrid feed-forward neural network with grasshopper optimization for observing pattern of scour depth around bridge piers. Arabian Journal of Geosciences, 14(22), p. 2352. https://doi.org/10.1007/s12517-021-08617-8
95. Khan, M., Tufail, M., Ajmal, M., Haq, Z.U., and Kim, T.W., 2017. Experimental analysis of the scour pattern modeling of scour depth around bridge piers. Arabian Journal for Science and Engineering, 42, pp. 4111–4130. https://doi.org/10.1007/s13369-017-2599-7
96. Kothyari, U. C., Garde, R.J., and Ranga Raju, K.G., 1992. Temporal variation of scour around circular bridge piers. Journal of Hydraulic Engineering, 16, pp. 35–48.https://doi.org/10.1061/(ASCE)0733-9429(1992)118:8(1091)
97. Krishna, A., and Latha, G.M., 2023. Evolution of Geocells as Sustainable Support to Transportation Infrastructure. Sustainability, 15, p. 11773. https://doi.org/10.3390/su151511773
98. Keshavarz, A., Vaghefi, M., and Ahmadi, G., 2024. Collars for scour reduction around different shapes of bridge piers in a 180° sharp bend. International Journal of Civil Engineering, 22(10), pp. 1733-1751. https://doi.org/10.1007/s40999-024-00994-x
99. Kim, D., Jung, S., and Na, W.B., 2021. Evaluation of turbulence models for estimating the wake region of artificial reefs using particle image velocimetry and computational fluid dynamics. Ocean Engineering, 223, p. 108673. 10.1016/j.oceaneng.2021.108673
100. Kim, T., Kwon, Y., Lee, J., Lee, E., and Kwon, S., 2022. Wave attenuation prediction of artificial coral reef using machine-learning integrated with hydraulic experiment. Ocean Engineering, 248, p. 110324. 10.1016/j.oceaneng.2021.110324
101. Kharbeche, M., 2022. The role of pier shape and aspect ratio on local scour with and without sacrificial piles. Masters thesis, University of Windsor (Canada). https://uwindsor.scholaris.ca/bitstreams/a3ab965c-0306-43d4-85b9-81c6dfebd5f9/download
102. Khalfin, I.S., 1983. April. Local scour around ice-resistant structures caused by wave and current effect. In Proceedings of the Seventh International Conference on Port and Ocean Engineering under Arctic Conditions, Helsinki, Finland (pp. 5-9). https://books.google.com/books/about/The_Seventh_International_Conference_on.html?id=LAjI0AEACAAJ
103. Lee, M., Yoo, M., Jung, H.-S., Kim, K.H., and Lee, I.W., 2020. Study on dynamic behavior of bridge pier by impact load test considering scour. Applied Sciences, 10, p. 6741. https://doi.org/10.3390/app10196741
104. Liang, B., Du, S., Pan, X., and Zhang, L., 2020 .Local scour for vertical piles in steady currents: review of mechanisms, influencing factors and empirical equations. Journal of Marine Science and Engineering, 8(1), pp. 0004. https://doi.org/10.3390/jmse8010004
105. Li, S., He, S., Li, H., and Jin, Y., 2017. Scour depth determination of bridge piers based on time-varying modal parameters: Application to Hangzhou Bay Bridge. Journal of Bridge Engineering, 22(12), pp. 1–13.https://doi.org/10.1061/(ASCE)BE.1943-5592.0001154
106. Lad, V.H., Patel, D.A., Chauhan, K.A., and Patel, K.A., 2022 .Development of fuzzy system dynamics model to forecast bridge resilience. Journal of Bridge Engineering, 27(4), pp. 04022114. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001952
107. Lança, R. M., Fael, C. S., Maia, R. J., Pêgo, J. P. and Cardoso, A.H., 2013. Clear-water scour at comparatively large cylindrical piers. Journal of Hydraulic Engineering, 139, pp. 1117–1125. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000788
108. Link, O., Henríquez, S., and Ettmer, B., 2019. Physical scale modelling of scour around bridge piers. Journal of Hydraulic Research, 57, pp. 227–237. https://doi.org/10.1080/00221686.2018.1475428
109. Li, J., Guo, Y., Lian, J., and Wang, H., 2023. Mechanisms, assessments, countermeasures, and prospects for offshore wind turbine foundation scour research. Ocean Engineering, 281, p. 114893. 10.1016/j.oceaneng.2023.114893
110. Lagasse, P.F., 2007. Countermeasures to protect bridge piers from scour (Vol. 593). Transportation Research Board.
111. Liang, Z., Jeng, D. S., Liu, J., and Zhang, J., 2022. Numerical study of Articulated Concrete Mattresses (ACMs) for offshore pipeline protection. Ocean Engineering, 255, p. 111467. 10.1016/j.oceaneng.2022.111467
112. López, I., Tinoco, H., Aragonés, L., and Garcia-Barba, J., 2016. The multifunctional artificial reef and its role in the defence of the Mediterranean coast. Science of the Total Environment, 550, pp. 910-923. https://doi.org/10.1016/j.scitotenv.2016.01.180
113. Liang, S., Zhang, Y., and Yang, J., 2015. An experimental study on pile scour mitigating measures under waves and currents. Science China Technological Sciences, 58(6), pp. 1031–1045. https://doi.org/10.1007/s11431-015-5829-9
114. Lauchlan, C.S., 1999. Pier Scour Countermeasures. PhD dissertation, The University of Auckland, Auckland.
115. Lai, Y.G., Liu, X., Bombardelli, F.A., and Song, Y., 2022. Three-dimensional numerical modeling of local scour: A state-of-the-art review and perspective. Journal of Hydraulic Engineering, 148(11), p. 03122002.https://doi.org/10.1061/(ASCE)HY.1943-7900.0002019
116. Lee, C.H., Low, Y.M., and Chiew, Y.M., 2016. Multi-dimensional rheology-based two-phase model for sediment transport and applications to sheet flow and pipeline scour. Physics of Fluids, 28(5). https://doi.org/10.1063/1.4948987
117. Melville, B.W., and Sutherland, A.J., 1988. Design method for local scour at bridge piers. Journal of Hydraulic Engineering, 114(10), pp. 1210-1226. https://doi.org/10.1061/(ASCE)0733-9429(1988)114:10(1210)
118. Melville, B.W., 1992 .Local scour at bridge abutments. Journal of Hydraulic Engineering, 118(4), pp. 615–631. https://doi.org/10.1061/(ASCE)0733-9429(1992)118:4(615)
119. Melville, B.W., and Raudkivi, A.J., 1977. Flow characteristics in local scour at bridge piers. Journal of Hydraulic Research, 15, pp. 373–380. https://doi.org/10.1080/00221687709499641
120. Melville, B.W., 1984. Live-bed scour at bridge piers. Journal of Hydraulic Engineering, 110(9), pp. 1234-1247.https://doi.org/10.1061/(ASCE)0733-9429(1984)110:9(1234)
121. Melville, B.W., and Chiew, Y.M., 1999. Time scale for local scour at bridge piers. Journal of Hydraulic Engineering, 125(1), pp. 59-65. https://doi.org/10.1061/(ASCE)0733-9429(1999)125:1(59)
122. Melville, B.W., and Coleman, S.E., 2000. Bridge scour. Water Resources Publication. https://books.google.com.et/books?id=SoIA3P1zLAEC&printsec=frontcover
123. Melville, B.W., 1975. Local Scour at Bridge Site. PhD dissertation, The University of Auckland. https://hdl.handle.net/2292/2537
124. Melville, B.W., and Hadfield, A.C., 1999. Use of sacrificial piles as pier scour countermeasures. Journal of Hydraulic Engineering, 125(11), pp. 1221–1224. https://doi.org/10.1061/(ASCE)0733-9429(1999)125:11(1221)
125. Maddison, B., 2012 .Scour failure of bridges. Proceedings of the Institution of Civil Engineers – Forensic Engineering, 165(1), pp. 39–52. https://doi.org/10.1680/feng.2012.165.1.39
126. Mathew, B.K., Lakshmi, S., and Hari, G., 2022 .Design of a self-lifting pedestrian bridge for flood-prone locations. In: Recent Advances in Structural Engineering and Construction Management: Select Proceedings of ICSMC 2021. Springer Nature Singapore, pp. 393–410. 10.1007/978-981-19-4040-8_32
127. Mohamed, Y.A., Abdel-Aal, G.M., Nasr-Allah, T.H., and Shawky, A.A., 2016. Experimental and theoretical investigations of scour at bridge abutment. Journal of King Saud University – Engineering Sciences, 28, pp. 32–40.https://doi.org/10.1016/j.jksues.2013.09.005
128. Misuriya, G., and Eldho, T.I., 2023. Turbulent structures and local scour around a cylindrical pier under unsteady flows. Environmental Fluid Mechanics, 23, pp. 1359–1380.https://doi.org/10.1007/s10652-023-09951-z
129. Majedi-Asl, M., Daneshfaraz, R., Abraham, J., and Valizadeh, S., 2021. Effects of hydraulic characteristics, sedimentary parameters, and mining of bed material on scour depth of bridge pier groups. Journal of Performance of Constructed Facilities, 35(2), p. 04020148. https://doi.org/10.1061/(ASCE)CF.1943-5509.0001549
130. Majedi Asl, M., Daneshfaraz, R., and Valizadeh, S., 2019. The experimental study of the river sand and gravel mining on the scouring pattern around pier group. Journal of Hydraulics, 14(3), pp. 129-145. [In Persian]. 10.30482/jhyd.2019.186662.1391
131. Mahalder, B., Schwartz, J.S., Palomino, A.M., and Zirkle, J., 2024. Influence of Cumulative Effective Stream Power on Scour Depth Prediction Around Bridge Piers in Cohesive Bed Sediments. Transportation Research Record: Journal of the Transportation Research Board, 2678, pp. 710–723. 10.1177/03611981241230514
132. Mohr, H., Draper, S., White, D.J., and Cheng, L., 2018. The Influence of Permeability on the Erosion Rate of Fine-Grained Marine Sediments. Coastal Engineering, 140, pp. 124–135. https://doi.org/10.1016/j.coastaleng.2018.04.013
133. Mehta, A.J., 2022. Introduction To Hydraulics Of Fine Sediment Transport, Vol. 56. World Scientific. https://www.worldscientific.com/doi/pdf/10.1142/9789811257247_0001
135. Marandi, M.O., 2022. Erosion Control of Steep Open Channels Using Articulated Concrete Blocks. Masters thesis, The University of Western Ontario (Canada). https://uwo.scholaris.ca/bitstreams/277f65a5-170f-4634-adbf-e0b43f52a487/download
136. Movahedi, N., Dehghani, A.A., Zahiri, A. and Aarabi, M.J., 2024. Experimental investigation of scour reduction around side-by-side piers by a downstream bed sill and continuous footing. ISH Journal of Hydraulic Engineering, 30(5), pp. 633–644. https://doi.org/10.1080/09715010.2024.2397401
137. Nielsen, A.W., Sumer, B. M., Fredsøe, J., and Christensen, E.D., 2011. Sinking of armour layer around a cylinder exposed to a current. Proceedings of the Institution of Civil Engineers - Marine Engineering, 164(4), pp. 159-172. https://doi.org/10.1680/maen.2011.164.4.159
138. Nielsen, A.W., Probst, T., Petersen, T.U., and Sumer, B.M., 2015. Sinking of armour layer around a vertical cylinder exposed to waves and current. Coastal Engineering, 100(6), pp. 58-66. https://doi.org/10.1016/j.coastaleng.2015.03.010
139. Nazari-Sharabian, M., Nazari-Sharabian, A., Karakouzian, M., and Karami, M., 2020. Sacrificial piles as scour countermeasures in river bridges: A numerical study using FLOW-3D. Civil Engineering Journal, 6(6), pp. 1091–1103. https://doi.org/10.28991/cej-2020-03091531
140. Najafzadeh, M., and Oliveto, G., 2021. More reliable predictions of clear-water scour depth at pile groups by robust artificial intelligence techniques while preserving physical consistency. Soft Computing, 25(7), pp. 5723-5746.
https://doi.org/10.1007/s00500-020-05567-3
141. Nandi, B., and Das, S., 2025. A novel formula to determine the time to achieve quasi-equilibrium scour around a circular pier. ISH Journal of Hydraulic Engineering, pp. 1-16. https://doi.org/10.1080/09715010.2025.2507924
142. Nandi, B., Patel, G., and Das, S., 2024. Prediction of maximum scour depth at clear water conditions: Multivariate and robust comparative analysis between empirical equations and machine learning approaches using extensive reference metadata. Journal of Environmental Management, 354, p. 120349. https://doi.org/10.1016/j.jenvman.2024.120349
143. Odgaard, A.J., and Kennedy, J.F., 1983. River-bend bank protection by submerged vanes. Journal of Hydraulic Engineering, 109(8), pp. 1161–1173. https://doi.org/10.1061/(ASCE)0733-9429(1983)109:8(1161)
144. Obied, N.A., and Khassaf, S.I., 2019. Experimental study for protection of piers against local scour using slots. International Journal of Engineering, 32(2), pp. 217–222. doi: 10.5829/ije.2019.32.02b.05
145. Oliveto, G., and Hager, W.H., 2002. Temporal evolution of clear-water pier and abutment scour. Journal of Hydraulic Engineering, 128(9), pp. 811-820. https://doi.org/10.1061/(ASCE)0733-9429(2002)128:9(811)
146. Prendergast, L.J., and Gavin, K., 2014 .A review of bridge scour monitoring techniques. Journal of Rock Mechanics and Geotechnical Engineering, 6(2), pp. 138–149. https://doi.org/10.1016/j.jrmge.2014.01.007
147. Pandey, M., Pu, J.H., Pourshahbaz, H., and Khan, M.A., 2022. Reduction of scour around circular piers using collars. Journal of Flood Risk Management, 15, pp. e12812. https://doi.org/10.1111/jfr3.12812
148. Pandey, M., Sharma, P.K., Ahmad, Z., and Karna, N., 2018. Maximum scour depth around bridge pier in gravel bed streams. Natural Hazards, 91(2), pp. 819-836. https://doi.org/10.1007/s11069-017-3157-z
149. Pandey, M., Azamathulla, H.M., Chaudhuri, S., Pu, J.H., and Pourshahbaz, H., 2020. Reduction of time-dependent scour around piers using collars. Ocean Engineering, 213(7), p. 107692. 10.1016/j.oceaneng.2020.107692
150. Porhemmat, M., 2018. Spatial and temporal scour profile of cylindrical pier in cohesive sediment mixture. Ph.D. Thesis, Universiti Kebangsaan Malaysia, Malaysia. 10.1007/s40996-024-01443-4
151. Parker, G., Toro-Escobar, C., and Voigt Jr, R.L., 1998. Countermeasures to protect bridge piers from scour. https://hdl.handle.net/11299/108221
152. Pagliara, S., Carnacina, I., and Cigni, F., 2010. Sills and gabions as countermeasures at bridge pier in presence of debris accumulations. Journal of Hydraulic Research, 48(6), pp. 764-774. https://doi.org/10.1080/00221686.2010.528184
154. Park, J.H., Sok, C., Park, C.K., and Kim, Y.D., 2016, A study on the effects of debris accumulation at sacrificial piles on bridge pier scour: I. Experimental results. KSCE Journal of Civil Engineering, 20(4), pp. 1546–1551. https://doi.org/10.1007/s12205-015-0207-5
155. Peng, Y., and Yin, Z.Y., 2025. Micromechanical analysis of local scour behaviors around circular piles in granular soil under steady flows with SPH-DEM. Ocean engineering, 328, p. 121061.10.1016/j.oceaneng.2025.121061
156. Pizarro, A., Manfreda, S., and Tubaldi, E., 2020. The science behind scour at bridge foundations: A review. Water, 12(2), p. 374. https://doi.org/10.3390/w12020374
157. Qi, M., Chiew, Y.M., and Hong, J.H., 2013. Suction effects on bridge pier scour under clear-water conditions. Journal of Hydraulic Engineering, 139(6), pp. 621–629. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000711
158. Qi, H., Yuan, T., Zhao, F., Chen, G., Tian, W., and Li, J., 2023. Local scour reduction around cylindrical piers using permeable collars in clear water. Water, 15(5), p. 897. https://doi.org/10.3390/w15050897
159. Qi, H., Tian, W., and Zhang, H., 2021. Modeling local scour around a cylindrical pier with circular collar with tilt angles (counterclockwise around the direction of the channel cross-section) in clear-water. Water, 13(22), p. 3281. https://doi.org/10.3390/w13223281
160. Qin, C., Duan, L., Wang, D., Duan, B., and Liu, W., 2024. A Local Scour Model for Single Pile on Silty Seabed Considering Soil Cohesion (SedCohFOAM): Model and Validation. Physics of Fluids, 36, p. 053340. https://doi.org/10.1063/5.0207743
161. Raudkivi, A.J., and Ettema, R., 1983. Clear-water scour at cylindrical piers. Journal of Hydraulic Engineering, 109(3), pp. 338–350. https://doi.org/10.1061/(ASCE)0733-9429(1983)109:3(338)
162. Raudkivi, A.J., 1986. Functional trends of scour at bridge piers. Journal of Hydraulic Engineering, 112(1), pp. 1-13. https://doi.org/10.1061/(ASCE)0733-9429(1986)112:1(1)
163. Rathod, P., and Manekar, V.L., 2022. Gene expression programming to predict local scour using laboratory and field data. ISH Journal of Hydraulic Engineering, 28(2), pp. 143-151. https://doi.org/10.1080/09715010.2020.1846144
164. Raikar, R.V., and Dey, S., 2005. Clear-water scour at bridge piers in fine and medium gravel beds. Canadian Journal of Civil Engineering, 32(4), pp. 775-781. https://doi.org/10.1139/l05-022
165. Rezaie, M., Daneshfaraz, R., and Dasineh, M., 2018. Experimental investigation of adding clay and PAM on scour reduction bridge piers under the influence removal of river materials. Journal of Hydraulics, 13(3), pp. 59-70. [In Persian]. 10.30482/jhyd.2018.81358
166. Roulund, A., Sumer, B.M., Fredsøe, J., and Michelsen, J., 2005. Numerical and experimental investigation of flow and scour around a circular pile. Journal of Fluid mechanics, 534, pp. 351-401. https://doi.org/10.1017/S0022112005004507
167. Radice, A., Porta, G., and Franzetti, S., 2009. Analysis of the time-averaged properties of sediment motion in a local scour process. Water Resources Research,45(3). https://doi.org/10.1029/2007WR006754
168. Rebai, D., Radice, A., Ballio, F., and Franzetti, S., 2026. Predictors for Clear-Water and Live-Bed Scour at Circular Piers. Journal of Hydraulic Engineering, 152(2), p. 06025016. https://doi.org/10.1061/JHEND8.HYENG-14569
169. Sholtes, J.S., Ubing, C., Randle, T.J., Fripp, J., Cenderelli, D., and Baird, D.C., 2017 .Managing Infrastructure in the Stream Environment. U.S. Department of the Interior and U.S. Department of Agriculture, Denver, CO, USA, pp. 65. https://doi.org/10.1111/1752-1688.12692
170. Sheppard, D.M., Melville, B., and Yang, Y., 2023a. Local equilibrium sediment scour prediction at bridge piers with complex geometries. Journal of Hydraulic Engineering, 149, pp. 1–14. https://doi.org/10.1061/(ASCE)HY.1943-7900.0002026
171. Sheppard, D.M., Yang, Y., and Melville, B., 2023b. Method for estimating clear-water local scour rate at complex piers. Journal of Hydraulic Engineering, 149(10), p. 04023039. https://doi.org/10.1061/JHEND8.HYENG-13656
172. Schaap, H.S., and Caner, A., 2022 .Bridge collapses in Turkey: causes and remedies. Structure and Infrastructure Engineering, 18, pp. 694–709. https://doi.org/10.1080/15732479.2020.1867198
173. Shahriar, A.R., Ortiz, A.C., Montoya, B.M., and Gabr, M.A., 2021 .Bridge pier scour: an overview of factors affecting the phenomenon and comparative evaluation of selected models. Transportation Geotechnics, pp. 100549. https://doi.org/10.1016/j.trgeo.2021.100549
174. Schendel, A., Goseberg, N., and Schlurmann, T., 2016. Erosion stability of wide-graded quarry-stone material under unidirectional current. Journal of Waterway, Port, Coastal, and Ocean Engineering, 142, pp. 04015023.https://doi.org/10.1061/(ASCE)WW.1943-5460.0000321
175. Shrestha, C.K., 2015. Bridge pier flow interaction and its effect on the process of scouring (Doctoral dissertation). University of Technology Sydney (Australia).https://search.proquest.com/openview/66f898b068d9da02aebfff3be633f4b0/1.pdf?pq-origsite=gscholar&cbl=2026366&diss=y
176. Sharp, J.A., and McAlpin, T.O., 2022. Case study: experimental investigation into the feasibility of pier nose extensions to reduce local scour around bridge piers. Journal of Hydraulic Engineering, 148, 05021010. https://doi.org/10.1061/(ASCE)HY.1943-7900.0001948
177. Sumer, B.M., Christiansen, N., and Fredsøe, J., 1993. Influence of cross section on wave scour around piles. Journal of waterway, port, coastal, and ocean engineering, 119(5), pp. 477-495. https://doi.org/10.1061/(ASCE)0733-950X(1993)119:5(477)
178. Shamshirband, S., Mosavi, A., and Rabczuk, T., 2020. Particle swarm optimization model to predict scour depth around a bridge pier. Frontiers of Structural and Civil Engineering, 14(4), pp. 855-866. https://doi.org/10.1007/s11709-020-0619-2
179. Sreedhara, B.M., Patil, A.P., Pushparaj, J., Kuntoji, G., and Naganna, S.R., 2021. Application of gradient tree boosting regressor for the prediction of scour depth around bridge piers. Journal of Hydroinformatics, 23(4), pp. 849-863. https://doi.org/10.2166/hydro.2021.011
180. Silvia, C.S., Ikhsan, M., and Wirayuda, A., 2021. Analysis of scour depth around bridge piers with round nose shape by HEC-RAS 5.0.7 software. In Journal of Physics: Conference Series, 1764(1), p. 012151. 10.1088/1742-6596/1764/1/012151
181. Sonia Devi, Y., and Barbhuiya, A.K., 2017. Bridge Pier Scour in Cohesive Soil: A Review. Sādhanā, 42, pp. 1803–1819.https://doi.org/10.1007/s12046-017-0698-5
182. Singh, N.B., Devi, T.T., and Kumar, B., 2022. The local scour around bridge piers—a review of remedial techniques. ISH Journal of Hydraulic Engineering, 28(Suppl.1), pp. 527-540. https://doi.org/10.1080/09715010.2020.1752830
183. Schendel, A., Goseberg, N., and Schlurmann, T., 2014. Experimental study on the performance of coarse grain materials as scour protection. In Coastal Engineering Conference 2014, ASCE, Reston, VA. https://doi.org/10.15488/895
184. Soltani-Gerdefaramarzi, S., Afzalimehr, H., Chiew, Y.M., and Lai, J.S., 2013. Jets to control scour around circular bridge piers. Canadian Journal of Civil Engineering, 40(3), pp. 204–212. https://doi.org/10.1139/cjce-2012-0240
185. Safaripour, N., Vaghefi, M. and Mahmoudi, A., 2022. Experimental study of the effect of submergence ratio of double submerged vanes on topography alterations and temporal evaluation of the maximum scour in a 180-degree bend with a bridge pier group. International Journal of River Basin Management, 20(4), pp. 427–441. https://doi.org/10.1080/15715124.2020.1837144
186. Sultana, T., Nandi, B. and Das, S., 2026. A Systematic Review of Collar-based Scour Countermeasures for Bridge Piers. Archives of Computational Methods in Engineering, 33(2), pp. 2229-2252.https://doi.org/10.1007/s11831-025-10362-0
187. Sui, S.H., Zhao, X.L., Chen, X.R., Deng, W.N. and Shen, K.M., 2023. Full-scale numerical simulation of the local scour under combined current and wave conditions based on field data. China Ocean Engineering, 37(6), pp. 1032-1043. https://doi.org/10.1007/s13344-023-0086-3
188. Sheppard, D.M., and Renna, R., 2005. Bridge Scour Manual; Florida Department of Transportation.
189. Tafarojnoruz, A., Gaudio, R., and Dey, S., 2010. Flow-altering countermeasures against scour at bridge piers: A review. Journal of Hydraulic Research, 48, pp. 441–452. https://doi.org/10.1080/00221686.2010.491645
190. Tan, G., Wang, J., Shu, C., and Lai, Y., 2007. Effects of Consolidation Time and Particle Size on Scour Rates of Cohesive Sediment. Journal of Hydrodynamics, 19, pp. 160–164. https://doi.org/10.1016/S1001-6058(07)60043-2
191. Tang, Z.H., Melville, B., Singhal, N., Shamseldin, A., Zheng, J.H., Guan, D.W., and Cheng, L., 2022. Countermeasures for local scour at offshore wind turbine monopile foundations: A review. Water Science and Engineering, 15(1), pp. 15-28. https://doi.org/10.1016/j.wse.2021.12.010
193. Vijayasree, B.A., Eldho, T.I., and Mazumder, B.S., 2020. Turbulence statistics of flow causing scour around circular and oblong piers. Journal of Hydraulic Research, 58(4), pp. 673–686. https://doi.org/10.1080/00221686.2019.1661292
194. Vijayasree, B.A., Eldho, T.I., Mazumder, B.S., and Ahmad, N., 2019. Influence of bridge pier shape on flow field and scour geometry. International Journal of River Basin Management, 17(1), pp. 109-129. https://doi.org/10.1080/15715124.2017.1394315
195. Vasquez, J., McLean, D., and Walsh, B., 2007. Modeling Scour and Riprap Protection in Golden Ears Bridge. In Proceedings of the 18th Canadian Hydrotechnical Conference, Winnipeg, MB, Canada, 22–24 August 2007. https://www.researchgate.net/publication/327671455_Modeling_Scour_and_Riprap_Protection_in_Golden_Ears_Bridge
196. Valela, C., Nistor, I., Rennie, C.D., Lara, J.L., and Maza, M., 2021. Hybrid modelling for design of a novel bridge pier collar for reducing scour. Journal of Hydraulic Engineering, 147(5), p. 4021012. https://doi.org/10.1061/(ASCE)HY.1943-7900.0001875
197. Valela, C., Rennie, C.D., and Nistor, I., 2022a. Improved bridge pier collar for reducing scour. International Journal of Sediment Research, 37(1), pp. 37–46. https://doi.org/10.1016/j.ijsrc.2021.04.004
198. Valela, C., Whittaker, C.N., Rennie, C.D., Nistor, I., and Melville, B.W., 2022b. Novel riprap structure for improved bridge pier scour protection. Journal of Hydraulic Engineering, 148(3), p. 04022002. https://doi.org/10.1061/(ASCE)HY.1943-7900.0001967
199. Vaghefi, M., Zarei, E., Ahmadi, G., and Behroozi, A.M., 2023. Experimental analysis of submerged vanes configuration for mitigating local scour at piers in a sharp bend: Influence of quantity, length, and orientation. Ocean Engineering, 289, p.116267. 10.1016/j.oceaneng.2023.116267
200. Vonkeman, J.K., and Basson, G.R., 2019. Evaluation of empirical equations to predict bridge pier scour in a non-cohesive bed under clear-water conditions. Journal of the South african institution of civil engineering, 61(2), pp. 2-20. 10.17159/2309-8775/2019/v61n2a1
201. Wang, S., Wei, K., Shen, Z., and Xiang, Q., 2019 .Experimental investigation of local scour protection for cylindrical bridge piers using anti-scour collars. Water, 11(7), pp. 1515. https://doi.org/10.3390/w11071515
202. Wardhana, K., and Hadipriono, F.C., 2003. Analysis of recent bridge failures in the United States. Journal of Performance of Constructed Facilities, 17(3), pp. 144–150.https://doi.org/10.1061/(ASCE)0887-3828(2003)17:3(144)
203. Kalidindi, M.K., and Khosa, R., 2025. Coherent structure variations in the flow around a square pier with an evolving scour hole. Journal of Hydraulic Engineering, 151(4), p. 04025009. https://doi.org/10.1061/JHEND8.HYENG-14263
204. Wang, C., Liang, F., and Yu, X., 2017. Experimental and numerical investigations on the performance of sacrificial piles in reducing local scour around pile groups. Natural Hazards, 85, pp. 1417–1435. https://doi.org/10.1007/s11069-016-2634-0
205. Wang, C., Wu, Q., Liang, J., Liang, F., and Yu, X.B., 2024. Establishment and implementation of an artificial intelligent flume for investigating local scour around underwater foundations. Transportation Geotechnics, 49, p. 101433. https://doi.org/10.1016/j.trgeo.2024.101433
206. Wang, C., Yuan, Y., Liang, F., and Tao, J., 2022. Experimental Investigation of Local Scour around Cylindrical Pile Foundations in a Double-Layered Sediment under Current Flow. Ocean Engineering, 251, 111084. 10.1016/j.oceaneng.2022.111084
207. Wang, W., Yan, J., Chen, S., Liu, J., Jin, F., and Wang, B., 2023a. Gridded cemented riprap for scour protection around monopile in the marine environment. Ocean Engineering, 272, p. 113876. 10.1016/j.oceaneng.2023.113876
208. Wang, G., Xu, S., Zhang, Q., and Zhang, J., 2023b. An experimental study of the local scour protection methods around the monopile foundation of offshore wind turbines. Ocean Engineering, 273, p. 113957. 10.1016/j.oceaneng.2023.113957
209. Wang, L., Melville, B.W., Whittaker, C.N., and Guan, D., 2018. Effects of a downstream submerged weir on local scour at bridge piers. Journal of Hydraulic and Environmental Research, 20(6), pp. 101–109. 10.1016/j.jher.2018.06.001
210. Xiong, H., Xiao, J., Jin, Y.F., Sun, X. and Chen, X., 2024. Numerical investigation of scour development around offshore tensioners under steady current. Ocean Engineering, 313, p. 119373. 10.1016/j.oceaneng.2024.119373
211. Yang, Y., Melville, B.W., Xiong, X., and Wang, L., 2022. Temporal evolution of scour at bridge abutments in compound channels. International Journal of Sediment Research, 37(5), pp. 662-674. https://doi.org/10.1016/j.ijsrc.2022.03.004
212. Yoon, T.H., 2005. Wire gabion for protecting bridge piers. Journal of Hydraulic Engineering, 131(11), pp. 942-949. https://doi.org/10.1061/(ASCE)0733-9429(2005)131:11(942)
213. Zhang, W., Rennie, C.D. and Nistor, I., 2023b. A new model developed by multigene genetic programming for the temporal evolution of bridge pier scour. Canadian Journal of Civil Engineering, 50(7), pp. 549-559. https://doi.org/10.1139/cjce-2022-0430
214. Zhang, F., Chen, X., Yan, J. and Gao, X. 2023a. Countermeasures for local scour around offshore wind turbine monopile foundations: A review. Applied Ocean Research, 141, p. 103764. 10.1016/j.apor.2023.103764
215. Zhang, F., Chen, X., Feng, T., Wang, Y., Liu, X., and Liu, X., 2022. Experimental study of grouting protection against local scouring of monopile foundations for offshore wind turbines. Ocean Engineering, 258, p. 111798. 10.1016/j.oceaneng.2022.111798
216. Zhang, R., Xiong, W., and Gao, Y., 2024. A meshless model for three-dimensional direct numerical simulation of local scour around cylinder bridge foundation. Ocean Engineering, 312, p. 119220. 10.1016/j.oceaneng.2024.119220
217. Zarrati, A.R., Gholami, H., and Mashahir, M.B., 2004. Application of collar to control scouring around rectangular bridge piers. Journal of hydraulic research, 42(1), pp. 97-103. https://doi.org/10.1080/00221686.2004.9641188
218. Zarrati, A.R., Chamani, M.R., Shafaie, A. and Latifi, M., 2010. Scour countermeasures for cylindrical piers using riprap and combination of collar and riprap. International Journal of Sediment Research, 25(3), pp. 313-322 https://doi.org/10.1016/S1001-6279(10)60048-0
219. Zhao, M., 2022. A review on recent development of numerical modelling of local scour around hydraulic and marine structures. Journal of Marine Science and Engineering, 10(8), p. 1139. https://doi.org/10.3390/jmse10081139