Mederville Bridge

{{Use mdy dates|date=February 2025}}

{{Use American English|date=January 2025}}

{{Infobox NRHP | name = Mederville Bridge

| nrhp_type =

| image = Abandoned 1918 Mederville bridge.jpg

| caption =

| location = County road over the Volga River at Mederville

| nearest_city =

| coordinates = {{coord|42|45|49.1|N|91|25|17.6|W|display=inline,title}}

| locmapin = Iowa#USA

| area =

| built = 1918

| builder = F. E. Marsh and Company

| architect = Marsh Engineering Company

| architecture = Concrete open spandrel arch

| added = June 25, 1998

| mpsub = {{NRHP url|id=64500160|title=Highway Bridges of Iowa MPS}}

| refnum = 98000808{{NRISref|2009a}}

}}

The Mederville Bridge is a historic structure located in the unincorporated community of Mederville, Iowa, United States. It spans the Volga River for {{convert|156|ft|m}}. This is one of only a few open spandrel arch bridges constructed in Iowa.{{Cite web |url={{NRHP url|id=98000808}} |title=Mederville Bridge |publisher=National Park Service |access-date=2016-09-01 |last=Fraser |first=Clayton B.}} with {{NRHP url|id=98000808|photos=y|title=photos}} Designed by the Marsh Engineering Company of Des Moines, it replaced a covered timber Howe truss bridge. Clayton County rejected all of the original bids to build the structure when they all came in too high. Six companies bid a second time on the project, and F. E. Marsh and Company of Des Moines won. They completed in the bridge in 1918 for $17,454.32. It was listed on the National Register of Historic Places in 1998.