Home › Louisiana › St. Tammany Parish › Monroe St W Off Rp over N. Causeway Appr

Monroe St W Off Rp over N. Causeway Appr. S Boun

St. Tammany Parish, Louisiana · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Monroe St W Off Rp over N. Causeway Appr. S Boun in St. Tammany Parish, Louisiana, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1993, making it 32 years old at the 2025 inventory.
It carries about 1,600 vehicles a day (traffic count year 1995).
It is one of 123 of the 361 inventoried bridges in St. Tammany Parish rated good (34.1%); 18 (5.0%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Continuous concrete multiple box beam
Length	about 1,046 ft
Location	0.60 Mi N of Causeway Br.
NBI structure number	625230222900567
Condition class	Good

Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.

Bridge	Built	Vehicles/day	Condition
I0010 over East Pearl River	1966	87,741	Fair
I0010 over La 433	1966	82,860	Fair
I0010 over Canal	1966	82,860	Fair
I0012 over La 59	1976	80,162	Good
I0012 over Ponchatolawa Creek	1976	79,960	Fair
I0012 over Tchefuncte River	1975	79,563	Fair