Slidell and St. Tammany Parish @ SouthEastRoads
A look at the eastern two thirds of Saint Tammany Parish, of which our coverage documents.
The Slidell city area and the U.S. 11 corridor. Note also a short Business U.S. 190 in place.
Interstate 10 straddles the east side of Slidell, as it crosses Lake Pontchartrain from New Orleans. The freeway carries six lanes of bone jarring concrete from the lake crossing north to Interstate 12/59. An expansive interchange exists between the freeways, with the Interstate 10 mainline sweeping across the southeast corner of the junction. There are no interchanges between Interstate 12/59 and the Mississippi state line. However, a Louisiana state welcome center exists on westbound.
The direct route for through traffic in southeastern Louisiana, Interstate 12 takes a beeline westward from Slidell to Hammond at Interstate 55 and Baton Rouge. The freeway carries four lanes for all but the westernmost portion in Baton Rouge. Traffic counts are pretty generous, considering the lack of any medium sized cities along the route east of Baton Rouge.
The quietest of the three Interstates, Interstate 59 takes a northeastern trek 11 miles from Slidell to the Mississippi state line. The route parallels and replaces part of the original U.S. 11 alignment. Although the southern terminus occurs at Interstate 10 and 12, there were proposals early in the Interstate system planning to have Interstate 59 follow Interstate 10 southwestward into New Orleans. The highway currently carries four lanes of refurbished pavement (1999) to the state line. Traffic counts are light, as most traffic headed to regional points northeastward from New Orleans utilize Interstate 10 and 65.
U.S. 11 retains its original routing from the current terminus at U.S. 90 through Slidell. At Louisiana 41 things change, as U.S. 11 turns to the southeast for a merge onto Interstate 59. This overlap takes the two highways northward from Exit 3 of Interstate 59 to Mississippi Exit 1. Interstate 59 overrides the original roadway of U.S. 11 between Exits 5A and 5B. However at Exit 5B, which is an interchange for a local service road, the original U.S. 11 path veered to the east. This now abandoned roadway has succumbed to vegetation growth within the Pearl River Wildlife Management Area between Interstate 59 and the River of Pearls. The six mile alignment crossed into Mississippi near Saint Rose, where U.S. 11 turned northward along current Mississippi 607. U.S. 90 had overlapped with U.S. 11 from Slidell to Saint Rose, Mississippi at one time as well. With the completion of the bridge over the Pearl River at Pearlington, Mississippi, U.S. 90 was rerouted onto the new southerly alignment, with Mississippi 43 taking over the stretch of highway from U.S. 11/Saint Rose southward (current Mississippi 607). At Interstate 59/Exit 1 in Mississippi, the original U.S. 11 and current U.S. 11 coincide northward through Nicholson and Picayune.
Passes well to the south and east of Slidell. This was not always the case, as U.S. 90 originally took a more northerly swath closer to Slidell along Louisiana 433 to U.S. 11. U.S. 11 and 90 overlapped from downtown Slidell northward to Saint Rose, Mississippi, on an now abandoned stretch of highway between that Mississippi town and Pearl River. However, the current alignment takes the two lane highway from the state line near Pearlington, Mississippi southwestward to the Rigolets into Orleans Parish. The highway is lightly traveled, as Interstate 10 takes most of the through traffic away from the U.S route. With that stated, most of the businesses along this swampy right-of-way have succumbed to economic woes and have been abandoned. The road also retains an old style allure, with a lift bridge, three truss bridges, and a numerous ponytruss bridges over the main waterways and tributaries in the area.
The main east-west drag through Slidell. The highway carries local traffic for Slidell area interests, as Interstate 12 and 10 have taken over the role for through traffic needs. The highway is four laned through the heart of Slidell, passing through the commercial district north of downtown. A Business U.S. 190 also exists in Slidell. This four mile alignment was the original path for U.S. 190, but was designated when U.S. 190 was relocated to a new alignment to the north and east of downtown. The terminus for U.S. 190 occurs with U.S. 90 in a wetlands area six miles east of the city.
A main corridor between Covington and U.S. 190 and Bogalusa in Saint Tammany and Washington Parishes. The highway sees a four lane stretch from Louisiana 41 northward through the village of Sun towards Bogalusa. Speeders beware, as the speed limit reduces to 45 MPH for a distance of 150 yards or so in Sun with rigorous enforcement.
A short state highway linking Louisiana 41 through the center of Pearl River between Interstate 59/U.S. 11 and Louisiana 41. The highway, for the most part, passes through sleepy residential areas.
A nondescript state highway, Louisiana 59 connects Mandeville with Abita Springs and Louisiana 21. The highway itself sees suburban type development in and around Interstate 12, but transitions into a rural landscape north of the freeway.
Known as the Old Spanish Trail from Slidell southeastward to U.S. 90, Louisiana 433 was originally part of Louisiana 2 and U.S. 90, before the bridge and U.S. 90 alignment at Pearlington, Mississippi was constructed. The highway is seeing the spread of Slidell southeastward as more and more residents move outwards from New Orleans.
A short state highway on the east side of Slidell. The roadway basically acts as a frontage road for Interstate 59 southward towards Interstate 10. It terminates at U.S. 190. The state highway was truncated slightly from the original U.S. 11 routing back to Interstate 59 at Exit 3. Louisiana 190 (Military Road) travels a total of 4.52 miles.
Photos from around the Parish
Page Updated March 1, 2004.