Point Marion Lock and Dam

{{Infobox dam

| name = Point Marion Lock and Dam

| image = PointMarion.jpg

|image_size=300px

| image_caption = Looking downstream at Point Marion Lock and Dam.

| name_official =

| dam_crosses = Monongahela River

| res_name =

| location = Dunkard / Springhill townships, Greene County, near Point Marion, Pennsylvania

| operator = U.S. Army Corps of Engineers, Pittsburgh District

| dam_length ={{convert|638|ft|m|abbr=on}}

| dam_height ={{convert|15|ft|m|abbr=on}}

| dam_width_base =

| construction_began = 1923

| opening = 1926

| cost =

| res_capacity_total ={{convert|11500|acre feet|m3|abbr=on}}

| res_catchment ={{convert|2751|mi2|km2|abbr=on}}

| res_surface ={{convert|704|acre|ha|abbr=on}}

| coordinates = {{coord|39|43|38|N|79|54|39|W|type:landmark|display=inline,title}}

| extra =

}}

Point Marion Lock and Dam, previously known as Lock and Dam Number 8, is one of nine navigational structures on the Monongahela River between Pittsburgh, Pennsylvania and Fairmont, West Virginia. Maintained and built by the U.S. Army Corps of Engineers, the gated dam forms an upstream pool that is {{convert|11.2|mi|km}} long, stretching to the base of the Morgantown Lock and Dam. It is located at river mile 90.5 (river kilometer 145.6).

There is one lock chamber on the left descending bank of the river at the dam, {{convert|84|ft|m}} wide and {{convert|720|ft|m}} long. The reservoir formed by the dam is also a municipal and industrial water supply.{{cite web|url=http://www.lrp.usace.army.mil/nav/pm.htm|title=U.S. Army Corps of Engineers, Pittsburgh District- Point Marion Lock and Dam|accessdate=2009-03-02|archive-url=https://web.archive.org/web/19981203035959/http://www.lrp.usace.army.mil/nav/pm.htm|archive-date=1998-12-03|url-status=dead}}

File:Point Marion Lock and Dam Entrance.jpg