Dubuque, Iowa, USA. Tug boat pushing barges to pass through the channel at Lock and Dam #11 on the Mississippi River.

---

Tugboat pushing barges to pass through the channel at Lock and Dam #11 on the Mississippi River. A series of dams such as this one are utilized up and down the river. River barge traffic uses a channel along the Iowa shoreline to negotiate past the dam. The dam spans the states of Iowa and Wisconsin (top of image). In total there are 29 dams/locks on the mighty Mississippi River.

---

Size: 5568px × 3706px
Location: Fort Madison, Iowa
Photo credit: © Bruce Leighty / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: america, american, barges, boat, boats, commerce, control, controlling, copy, dam, dams, day, daylight, destinations, directing, dubuque, elevated, fort, harness, hauling, horizontal, iowa, lock, locks, madison, man, midwest, midwestern, mississippi, north, power, pushing, river, rivers, shipping, ships, space, states, steering, sunlight, sunny, transportation, travel, tug, tugboat, united, usa, view, water