Louisiana Highway 1

Louisiana Highway 1
Route information
Maintained by Louisiana DOTD
Length:	436.20 mi (702.00 km)
Existed:	1955 renumbering – present
Major junctions
South end:	dead end in Grand Isle
	US 90 near Raceland I-10 in Port Allen I-49 / US 167 in Alexandria I-20 in Shreveport
North end:	SH 77 near Atlanta, TX
Location
Parishes:	Jefferson, Lafourche, Assumption, Ascension, Iberville, West Baton Rouge, Pointe Coupee, Avoyelles, Rapides, Natchitoches, Red River, Caddo
Highway system
Highways in Louisiana ← LA 3286 LA 2 →

Louisiana Highway 1 (LA 1) is a state highway in Louisiana. At 436.20 miles (702.00 km), it is the longest numbered highway of any class in Louisiana. It runs diagonally across the state, connecting the oil and gas fields near the island of Grand Isle with the northwest corner of the state, north of Shreveport.

The part south of U.S. Highway 90 near Raceland is Corridor 44, a National Highway System High Priority Corridor. From Alexandria to Shreveport, the LA 1 corridor was used for Interstate 49.

Between New Roads, Louisiana, and the interchange with Interstate 49 at Alexandria, Louisiana, LA 10 forms part of the Zachary Taylor Parkway.

Route description

The southern terminus of LA 1 (29.2603°N 89.9637°W / 29.2603; -89.9637) is at a dead end in Grand Isle on the south bank of Bayou Rigaud. It heads southwest and west through Grand Isle, turning northwest where it meets LA 3090 (the road to Port Fourchon). At Leeville the road crosses Bayou Lafourche on the Leeville Bridge and begins to parallel the bayou on its west bank, heading through towns such as Golden Meadow Lockport, Raceland, Thibodaux, Napoleonville and Paincourtville. At Donaldsonville, where the bayou meets the Mississippi River, LA 1 turns northwest to parallel the river. (Southeast of Donaldsonville, LA 18 and LA 3089/LA 3127 parallel the Mississippi.)

From Donaldsonville to Port Allen, across the Mississippi from Baton Rouge, LA 1 generally parallels the Mississippi River. It takes a relatively straight inland route, bypassing the curves of the river followed by LA 405 and LA 988. At Port Allen, it meets U.S. Highway 190 at the west end of the Huey P. Long Bridge, and turns west with US 190 to past Erwinville. There it turns back north, running along several back channels and oxbows of the Mississippi to New Roads (which is bypassed by LA 3131), and then heading west from New Roads to Morganza with LA 10 (still paralleling the Mississippi). From Morganza to Lettsworth, LA 1 heads northwest near the Mississippi; LA 15 begins in Lettsworth and continues north along the river while LA 1 continues generally northwest towards Alexandria.

LA 1 heads inland through such towns as Moreauville and Marksville to Alexandria, where it meets the Pineville Expressway (U.S. Highway 165/LA 28). LA 1 turns southwest along its frontage roads - Fulton Street and Casson Street - along with LA 28 Business and U.S. Highway 167 Business to its end at Interstate 49, and continues southwest on Mason Street and northwest on Bolton Avenue.

Bridge of LA Highway 1 over the Cane River in Natchitoches

From Alexandria to Shreveport, LA 1 generally parallels Interstate 49, including a bypass around Natchitoches. Louisiana Highway 1 Business runs through downtown Natchitoches before rejoining the original highway just northwest of the city limits. It passes through Shreveport on Youree Drive, Spring Street and Market Street, running concurrently with U.S. Highway 71 from Interstate 20 downtown to a split north of downtown. From Shreveport to the border with Texas, where LA 1 becomes State Highway 77, LA 1 passes through towns such as Oil City, Vivian and Rodessa.

Highway 1 Expressway

The Louisiana Department of Transportation and Development (DOTD) is converting LA 1 from Golden Meadow to Port Fourchon into an elevated tolled expressway. These improvements are in order to facilitate in evacuations of Grand Isle and Port Fourchon in the event of a hurricane, as LA 1 in this area is vulnerable to flooding, regardless of strength of storm.

When completed, the expressway will be a 19 miles (31 km) long elevated toll road from Golden Meadow to the Gulf of Mexico. Tolls are collected using "open road tolling" technology; LA 1 is the first road or bridge in Louisiana to have tolls collected in this method. Travelers using the facilities must pre-pay either online, by phone, or at one of five kiosks north of the expressway, or use the "GeauxPass", an electronic toll collection transponder (or "toll tag") similar to E-ZPass that collects tolls electronically. The GeauxPass is also compatible with the Crescent City Connection and all future Louisiana toll roads, but not valid with the Lake Pontchartrain Causeway (which uses a different toll tag) or the ferries.

Funding for the project through taxes and grants have not been available, leading to the requirement to fund construction through collecting toll revenues. By law, LA 1 toll revenues may only be utilized to pay back construction loan debt the DOTD undertook in order to construct the new expressway.

The first portion of this project, a 2 lane toll bridge over Bayou Lafourche, opened on July 8, 2009. Tolling of the new bridge began on August 3.

The 2 lane section from Leeville to Port Fourchon opened on December 9, 2011. Funding is being secured for the section between Leeville and Golden Meadow with the eventual widening of the entire corridor to four lanes.

Junction List

Parish	Location	Destinations	Notes
Jefferson	Grand Isle	Bayou Rigaud	South end of highway
		LA 3151 west (Amaris Boulevard)
		LA 3151 north (Yacht Harbor Avenue)
		LA 3150 north (Minnich Lane)
Caminada Bay		Bridge over Caminada Bay
Lafourche		LA 3090 south (A.O. Rappelet Road) – Port Fourchon
	Golden Meadow	LA 3235 north
		LA 308 west
		LA 3161 west
	Larose	LA 310 north
		LA 24 west – Houma
	Lockport	LA 655 north
		LA 655 (Veterans Avenue)
		LA 364 east
	Raceland	US 90 – Lafayette, New Orleans
		LA 182 east – New Orleans	South end of LA 182 overlap
		LA 182 west – Houma	North end of LA 182 overlap
	Thibodaux	To LA 648
		LA 20 – Morgan City, Vacherie
		LA 3185
		LA 309 south – Houma
Assumption		LA 645 south – Amelia
	Labadieville	LA 398 south – Amelia	South end of LA 398 overlap
		LA 398 north	North end of LA 398 overlap
	Supreme	LA 1011
		LA 400 west
		LA 1010 west	South end of LA 1010 overlap
		LA 1010 east	North end of LA 1010 overlap
		LA 1009 west
	Napoleonville	LA 401 south
		LA 1008 west
		LA 1007 west
		LA 402 west
	Plattenville	To LA 70
	Paincourtville	LA 403 south
		LA 1005 west (Westfield Shop Road)
		LA 70 – Morgan City, Sorrento
		LA 1003 west
		LA 1000 west
		LA 1002
		LA 999 north
	Belle Rose	LA 998 west
Ascension		LA 944 north – Plaquemine
	Donaldsonville	LA 18 east / LA 3098 south – Gramercy, Sorrento
		LA 943 west
		LA 944 south – Napoleonville
		LA 405 north
Iberville	White Castle	LA 69 – Morgan City, Bayou Goula
		LA 993 south (Richland Road)
		LA 69 south – Bayou Goula
	Plaquemine	LA 75 – Baton Rouge
		LA 3066 south
		LA 988 north
		LA 77 north – Rosedale
		LA 1148
West Baton Rouge	Addis	LA 990 east
		LA 3237 west
		LA 988 south
		I-10 – Lafayette, Baton Rouge	Interchange
	Port Allen	LA 76 west (Court Street) – Rosedale
		LA 986 (Rosedale Road) – Rosedale
		US 190 east (Airline Highway) – Baton Rouge	Interchange; south end of US 190 overlap
		LA 415 north – Jarreau	South end of LA 415 overlap
		LA 415 south	Interchange; southbound exit and northbound entrance
		LA 1145 south
		LA 983 north
		LA 984 north
		LA 413 – Rosedale, Lakeland
Pointe Coupee		US 190 west (Airline Highway) – Opelousas	North end of US 190 overlap
		LA 416 west – Lakeland
		LA 978 south
		LA 78 west – Livonia
		LA 3131 north (Hospital Road)
	New Roads	LA 413 east (Main Street)
		LA 10 east – St. Francisville	South end of LA 10 overlap
		LA 3131 south (Hospital Road)
		LA 420 east
	Morganza	LA 10 west – Melville	North end of LA 10 overlap
		LA 419
		LA 418
		LA 971 south
		LA 970 / LA 15 north
		LA 417 south / LA 418 south
Avoyelles	Simmesport	LA 105 south – Melville
		LA 1183 south
		LA 114 west – Moreauville
		LA 451
		LA 1186 west
		LA 107 – Mansura
		LA 107 south	South end of LA 107 overlap
	Marksville	LA 452 north
		LA 1189 (Acton Road)
		LA 115 / LA 107 north – Bunkie, Center Point	North end of LA 107 overlap
		LA 1192 east
		LA 453 north
		LA 1195 north
		LA 1194 south
		LA 114 east
Rapides		LA 457
		LA 1198 north (Hathorn Road)
		LA 3170 west
		LA 457
	Alexandria	I-49 / US 165 south / US 167 south – Winnfield, Monroe, Lafayette
		US 165 Bus. south / US 167 Bus. south	North end of US Bus 167 overlap; south end of US Bus 165 overlap
		US 165 Bus. north	North end of US Bus 165 overlap
		LA 28 west – Leesville
		US 71 / US 165 – Oakdale, Bunkie
		LA 498 (Airbase Road)
		I-49 south
	Boyce	LA 1200 south / LA 8 north – Colfax	South end of LA 8 overlap
		LA 121 west
		LA 8 south – Simpson	North end of LA 8 overlap
Natchitoches		LA 490 east	South end of LA 490 overlap
		LA 490 east	North end of LA 490
		LA 495 north
		LA 495 south
		LA 119 – Flatwoods
		LA 493 north
		LA 120 west / LA 494 north – Zwolle
	Natchez	LA 119 south
	Natchitoches	LA 1 Bus. north – Natchitoches
		LA 6 west / LA 6 Bus. east – Many, Northwestern State University	South end of LA 6 overlap
		LA 3191 (Texas Avenue)
		LA 6 east – Winnfield	North end of LA 6 overlap
		LA 3191 south
	Powhatan	LA 485 south
Red River	Lake End	LA 174 west – Converse
		US 84 east / US 371 north – Coushatta	South end of US 84/371 overlap
		US 371 south / LA 177 south – Pleasent Hill	North end of US 371 overlap
	Grand Bayou	US 84 west – Mansfield	North end of US 84 overlap
		LA 509 west
Caddo		LA 523 north (Ellerbe Road)
		LA 175 south
	Shreveport	LA 523 south (Flourney Lucas Road)
		LA 3132
		LA 511 (Jimmy Davis Highway)
		LA 3032 (Kings Highway)
		I-20 / US 71 south – Dallas, Monroe	South end of US 71 overlap
		LA 3036 south (Common Street)
		LA 3049 north
		LA 3094 south
		I-220
		US 71 north – Texarkana	North end of US 71 overlap
		LA 538
		LA 173
		LA 169 – Mooringsport
	Caddo Lake	Bridge over Caddo Lake
		LA 538 – Mooringsport
	Oil City	LA 530 east (Allen Street)
		LA 538 south
		LA 2 west (Trees City Road)	South end of LA 2 overlap
	Vivian	LA 2 east – Houston	North end of LA 2 overlap
		LA 170 west
	Rodessa	LA 168 east	South end of LA 168 overlap
		LA 168 west	North end of LA 168 overlap
		SH 77 north – Atlanta	Continuation into Texas

See also

• Corridor 44
• LA 308, which runs across Bayou Lafourche from LA 1 south of Donaldsonville
• LA 3235, a bypass south from Cut Off
• List of bridges in the United States
• List of bridges by length

External links

• LA 1 Coalition (supports improving the southern part of LA 1)
• Zachary Taylor Parkway