Midmar Dam

{{Use South African English|date=July 2024}}

{{Use dmy dates|date=April 2022}}

{{Infobox dam

| name = Midmar Dam

| image = Midmar Dam-001.jpg

| image_caption = Midmar Dam

| name_official = Midmar Dam

| dam_crosses = Umgeni River{{cite web|url=http://www.fwr.org/wrcsa/1225104.htm|title=Quantification of factors affecting coagulation of water with cationic polymers and laboratory methods for determining these effects.|date=January 2004|publisher=Foundation for Water Research|accessdate=2009-02-09}}

| res_name = Midmar Dam Reservoir

| country = South Africa

| location = Howick, KwaZulu-Natal

| owner = Department of Water Affairs

| dam_length = {{convert|1423|m}}

| dam_height = {{convert|30|m}}

| dam_type = C

| purpose = industrial use

| dam_width_base =

| construction_began =

| opening = 1965

| cost =

| res_capacity_total = {{convert|235000|ML|hm3}}{{cite web|url=http://devplan.kzntl.gov.za/Municipal/IDPs/uMgungundlovu/Phase%201%20Analysis/uM%20-%20Part%203%20Environment%20SQ%207.doc|title=uMgungundlovu IDP - Phase one: part 3 - Analysis Report|publisher=KwaZulu-Natal Provincial Government|accessdate=2009-02-09|url-status=dead|archiveurl=https://web.archive.org/web/20110814135206/http://devplan.kzntl.gov.za/Municipal/IDPs/uMgungundlovu/Phase%201%20Analysis/uM%20-%20Part%203%20Environment%20SQ%207.doc|archivedate=2011-08-14}}

| res_catchment =

| res_surface = {{convert|1788|ha}}

| coordinates = {{coord|29|30|S|30|11|E|region:ZA_type:landmark|display=inline,title}}

| location_map = South Africa

}}

Midmar Dam is a combined gravity & earth-fill type dam and recreation area located near Howick and Pietermaritzburg, South Africa. Boating, swimming, waterskiing, picnicking, and fishing are popular pastimes at Midmar Dam. Each year, the Midmar Mile swimming race is held there, which organizers call "the world's largest open water swimming event". Over 20,000 entries were received for the 2009 event. Midmar Dam is located in the Midlands of KwaZulu-Natal. The dam's primary purpose is to serve for municipal and industrial use and its hazard potential has been ranked high (3).

Morgenzon has camping and caravanning sites, both powered and non-powered. The dam also hosts a yacht club,{{cite web |url=https://www.hmyc.org.za/ |title=Home |website=hmyc.org.za}} and lock up storage facilities for boats.

Midmar Dam is easily accessible from the N3 motorway.