LA 485: Bridges Near Allen; Site 2; Natchitoches Parish; H.001820; Detour
Thursday, September 21, 2023 at 2:41:39 PM

Road Closure and Detour
Site 2: Bridge 1.75 miles west of LA 485’s intersection with I-49
LA 485: Bridges Near Allen
Natchitoches Parish

S.P. H.001820.6
Control Section 115-02

The Louisiana Department of Transportation and Development (DOTD), advises the public that on Friday, September 22nd, 2023, construction will begin on a bridge on LA 485 in Natchitoches Parish and it will be closed to through traffic. This work will take place on LA 485: 1.75 miles west of its intersection with I-49.

Beginning September 22nd, the Site 2 Bridge (1.75 miles west of I-49) will be closed to traffic. Related work will includes removing the existing timber trestle bridge, installing bedding material, setting reinforced concrete box culverts, pouring headwalls, placing riprap, back filling the roadway, class II base course, hot mixed asphalt pavement, permanent striping and other related work.

In addition to this closure, the Rock’s Bayou Bridge, located 0.25 miles west of I-49, will be opened to through traffic on the same date.

The public is advised to remain alert to construction signs and changing roadway conditions along LA 485.

The project was awarded to the low bidder, Merrick, LLC, of Cottonport, LA in the amount of $13,727,495.43 and will take approximately 700 calendar days to complete all four sites.

Permit/Detour Section
Northbound traffic will be detoured west on LA 6 to I-49 north to LA 485.
Southbound traffic will be detoured south on I-49 to LA 6 East to LA 485.

Safety Reminder
DOTD appreciates your patience and reminds you to please drive with caution through the construction site and be on the lookout for work crews and their equipment.

Additional Information
Motorists can access the latest updates on real time traffic and road conditions using the 511 Traveler Information System and saying the route or region on which they are seeking information. Out of state travelers can also access this information by visiting the 511 Traveler Information Website at Additionally, you can follow the Traffic Management Center on Twitter: (@Alex Traffic). Motorists may also monitor the La DOTD website @ and the DOTD Facebook page.

Media Contact Information
Mrs. Erin Buchanan Mills
Public Information Officer 3
District 08: Avoyelles, Grant, Natchitoches, Rapides, Sabine, Vernon, and Winn Parishes
Phone: (318) 549-8402
Cell: (318) 347-2076

Project Contacts
Mr. Jared Taylor, M.S., P.E.
Natchitoches Parish Project Engineer
Office: (318) 357-3158 or (318) 357-3159

Mr. Joseph Montalvo, M.S., P.E.
Area Engineer for Grant, Natchitoches, and Winn Parishes
Office: (318) 561-5120