Balu (Lotru)

{{Infobox river

| name = Balu

| name_native =

| name_native_lang =

| name_other =

| name_etymology =

| image =

| image_size =

| image_caption =

| pushpin_map = Romania

| subdivision_type1 = Country

| subdivision_name1 = Romania

| subdivision_type2 = Counties

| subdivision_name2 = Vâlcea County

| length = {{convert|9|km|abbr=on}}

| width_min =

| width_avg =

| width_max =

| depth_min =

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| depth_max =

| discharge1_location=

| discharge1_min =

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| source1 =

| source1_location =

| source1_coordinates=

| source1_elevation =

| mouth = Lotru

| mouth_location = Vidra Lake

| mouth_coordinates = {{coord|45.4324|23.6976|display=it}}

| mouth_elevation =

| progression = {{RLotru}}

| river_system =

| basin_size = {{convert|14|km2|abbr=on}}

| tributaries_left =

| tributaries_right =

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}}

The Balu is a left tributary of the river Lotru in Romania.{{GeoSource|RO|Annex7|704}}{{GeoSource|RO|Atlas|293|VIII.1.135.2}} It discharges into Vidra Lake, which is drained by the Lotru.[http://www.e-calauza.ro/index.php?afiseaza=pluta_noua&rau=3684 Balu (jud. Valcea)], e-calauza.ro Its length is {{convert|9|km|abbr=on}} and its basin size {{convert|14|km2|abbr=on}}.{{GeoSource|RO|Atlas|293|VIII.1.135.2}}[http://www.isuvl.ro/03.%20Interventie/COp/Plan%20seisme%20si%20alunecari%20de%20teren%20-%202014.doc Plan de apărare în cazul producerii unei situații de urgență specifice (seisme și/sau alunecări de teren) al comitetul județean pentru situații de urgență Vâlcea] {{Webarchive|url=https://web.archive.org/web/20200913145614/http://www.isuvl.ro/03.%20Interventie/COp/Plan%20seisme%20si%20alunecari%20de%20teren%20-%202014.doc |date=2020-09-13 }}, p. 89 {{in lang|ro}}