I-59 northbound in Louisiana is a mere 11 miles long and only traverses through St. Tammany Parish.

The images below are only in the northbound direction.

The movement from I-10/I-12 onto I-59 gives us our first reassurance marker.

Taken January 1, 2023

The drive along I-59 through the uppermost part of Slidell is a quiet one. At mile 2, we see our first exit BGS: approaching US 11 and LA 1090 (Military Road).

Taken January 1, 2023

US 11 will join I-59 along this stretch of road from Exit 3 until the LA/MS border; both routes lead back to Slidell, albeit different sections.

Taken January 1, 2023

South ← → South
↓
North continues onto

Passing Exit 3, we see the first dual reassurance marker. US 11, in theory, could continue onward its old alignment (LA 3081) to the next exit, but it helps keep traffic out of downtown Pearl River.

Taken January 1, 2023

These next signs have a bit of age to them: they're from when LA 3081 used to be LA 47 Spur, which is what's hiding over those pesky covers - LA 47 Spur was given back to the town of Pearl River in 2007. If you exit here, this is where LA 3081 begins in the westbound direction (it changes direction to southbound after a turn in Pearl River).

Taken January 1, 2023

→ South/West

As we cross over the West Pearl River, we approach Honey Island Swamp, a decent tourist attraction where people can go on boat rides through the swamps of the Pearl River delta.

Taken January 1, 2023

This exit upcoming hides yet another secret: in the picture below, the road in the distance is the old alignment of US 11! This area was cut off after the old bridge crossing the West Pearl River was demolished in the late 1960's. The old approach to this roadway via Pearl River can be seen on LA 3081 Spur back in the town.

Taken January 1, 2023

We get another concurrency marker past Exit 5B, as well as a sign telling us we've entered the Pearl River Wildlife Management Area.

Taken January 1, 2023

We're now 5 miles from the Louisiana/Mississippi state line, as well as 69 miles from the next major city on I-59: Hattiesburg.

Taken January 1, 2023

The Pearl River Turnaround is the next exit: I'm genuinely unsure of the reason why this exit was built in the first place, as this area was pretty much forested according to aerial imagery. There's a quarry built directly off this exit, though I'm not sure if the quarry was made alongside I-59 or if it was built after. Bogue Chitto National Wildlife Refuge was created around this exit by then-President Jimmy Carter in 1970, but that was done after this exit was built.

Taken January 1, 2023

Here is a newspaper clipping from when the Pearl River Turnaround was first opened.

This is the last sign in Louisiana along I-59. This BGS seems to have been installed by LADOTD, but it looks akin to a Mississippi BGS (look how close those letters are on this sign compared to the other signs above!)

Taken January 1, 2023

From here, we cross over the (East) Pearl River into Pearl River County, Mississippi.

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Continue on northbound and into Mississippi,
return to in Louisiana, or return to Louisiana road signs

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