Sims Creek is a 4.7 miles (7.6 km) tributary of the Tangipahoa River

Tangipahoa River

The Tangipahoa River originates northwest of McComb in southwest Mississippi, and runs south through Lake Tangipahoa in Percy Quin State Park before passing into southeast Louisiana. Its mouth opens into the northwest region of Lake Pontchartrain....

 in the 8th Ward

Wards of the United States

In the United States, a ward is an optional division of a city or town, especially an electoral district, for administrative and representative purposes...

 of Tangipahoa Parish, Louisiana

Louisiana

Louisiana is a state located in the southern region of the United States of America. Its capital is Baton Rouge and largest city is New Orleans. Louisiana is the only state in the U.S. with political subdivisions termed parishes, which are local governments equivalent to counties...

. It flows generally southeast from near Robert

Robert, Louisiana

Robert is an unincorporated community in Tangipahoa Parish, Louisiana, United States. It lies east of Hammond, at the intersection of US 190 and LA 445, from which it has a signed exit on Interstate 12...

, and is joined about halfway down its course by its longest tributary, P-Kaw-Shun Creek, which begins north of Lorraine and flows southwest, passing under US 190 and Interstate 12

Interstate 12

Interstate 12 is an intrastate Interstate Highway located entirely within the state of Louisiana. I-12 starts in Baton Rouge at Interstate 10, and travels along the North Shore of Lake Pontchartrain before ending at the intersection of Interstate 10 and Interstate 59 near Slidell...

, to its confluence with Sims Creek. The main creek then continues southwest, passing under LA 445, and meets the Tangipahoa River 4 miles (6 km) south of Robert. The creek is part of the Lake Pontchartrain

Lake Pontchartrain

Lake Pontchartrain is a brackish estuary located in southeastern Louisiana. It is the second-largest inland saltwater body of water in the United States, after the Great Salt Lake in Utah, and the largest lake in Louisiana. As an estuary, Pontchartrain is not a true lake.It covers an area of with...

 Basin and thus sensitive to its ecology. In 2007, the attorney general

Attorney General

In most common law jurisdictions, the attorney general, or attorney-general, is the main legal advisor to the government, and in some jurisdictions he or she may also have executive responsibility for law enforcement or responsibility for public prosecutions.The term is used to refer to any person...

 of Louisiana issued a legal opinion

Legal opinion

In law, an opinion is usually a written explanation by a judge or group of judges that accompanies an order or ruling in a case, laying out the rationale and legal principles for the ruling....

that a private fence could not lawfully be constructed across Sims Creek, because of its importance to public drainage.