St. Tammany County, LA
360 public highway bridges
St. Tammany County Bridge Snapshot
St. Tammany County, Louisiana contains 360 public highway bridges in the FHWA National Bridge Inventory. Roughly 29.7% are rated “Good,” 53.1% “Fair,” 5.6% “Poor,” and 5.6% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.
Inspections in LA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Condition Distribution
All Bridges (360)
US0190
FairOver: CREEK
2.6 M E OF LA 1077, St. Tammany, LA
US0190-B
FairOver: CREEK
0.3 M W OF LA 21, St. Tammany, LA
US0190-B
FairOver: CREEK
0.1 M W OF LA 21, St. Tammany, LA
US0190
FairOver: CREEK
0.5 M E OF LA 59, St. Tammany, LA
US0190
FairOver: LITTLE BAYOU
1.8 M E OF LA 434, St. Tammany, LA
US0190
FairOver: DRAIN
0.1 M W OF US 11, St. Tammany, LA
US0011
FairOver: DRAIN
0.2 M N OF US 190, St. Tammany, LA
US0011
FairOver: DRAIN
0.9 M N OF US 190, St. Tammany, LA
US0011
FairOver: DRAIN
1.9 M N OF I-12, St. Tammany, LA
US0011
FairOver: DRAIN
2.3 M N OF I-12, St. Tammany, LA
LA0022
FairOver: DRAIN
LA 22, St. Tammany, LA
I0012
FairOver: DRAIN
1.5 M E OF US 11, St. Tammany, LA
I0012
FairOver: DRAINAGE
1.5 M E OF US 11, St. Tammany, LA
I0012
FairOver: DRAIN
1.5 M E OF US 11, St. Tammany, LA
Fenner Rd
FairOver: DRAINAGE DITCH
0.5 MILE N. OF LA.43, St. Tammany, LA
Joiner Rd
FairOver: EAST BEDICO CREEK BRIDGE
LA 1077 1.2 MI N JCT 1085, St. Tammany, LA
Holly Dr
FairOver: CREEK
0.1 MILES WEST OF LA 21, St. Tammany, LA
I0059
FairOver: YELLOW BAYOU
I0059, St. Tammany, LA
I0059
FairOver: DRY BAYOU
I0059, St. Tammany, LA
I0059
FairOver: INDIAN BAYOU
I0059, St. Tammany, LA
I0059
FairOver: CLEAR BAYOU
I0059, St. Tammany, LA
I0012
FairOver: EAST BEDICO CREEK
I0012, St. Tammany, LA
Lakeshore Dr
FairOver: BAYOU BRIDGE MANDEVILLE
1.0 MILE WEST OF US 190, St. Tammany, LA
US0190
FairOver: ABITA RIVER
2.1 MILES NORTH OF I-12, St. Tammany, LA
US0190
FairOver: PONCHITOLAWA CR
US 190, St. Tammany, LA
I0059
FairOver: YELLOW BAYOU
I0059, St. Tammany, LA
I0010
FairOver: EAST PEARL RIVER
I0010, St. Tammany, LA
I0012
FairOver: PONCHATOLAWA CREEK
0.7 M E OF US 190, St. Tammany, LA
LA0022
FairOver: TCHEFUNCTE R/MADISONVILL
MADISONVILLE (LA 22), St. Tammany, LA
LA0040
FairOver: BOGUE FALAYA RIVER
0.7 M E OF LA 25, St. Tammany, LA
LA0040
FairOver: BOGUE FALAYA RELIEF
0.8 M E OF LA 25, St. Tammany, LA
LA0040
FairOver: BEASON CREEK
0.3 M E OF LA 1080, St. Tammany, LA
LA0040
FairOver: PIGEON ROOST CREEK
LA 40 @ LOG MI 03.98, St. Tammany, LA
LA0040
FairOver: PIGEON ROOST CREEK
LA 40 @ LOGMI 04.11, St. Tammany, LA
LA0040
FairOver: BILLS BRANCH
0.1 M S OF LA 437, St. Tammany, LA
Lakeshore Dr
FairOver: LITTLE BAYOU BRIDGE
1.0 M SW of US 190, St. Tammany, LA
LA0437
FairOver: BOGUE FALAYA RIVER
1.35 MILES NORTH US 190, St. Tammany, LA
Daney St
FairOver: STREET OVER W-14 CANAL
0.3 MILE E. OF 3RD STREET, St. Tammany, LA
W. Dubuisson
FairOver: TRIBUTARY TO LIBERTY BAY
LA 433-E REILEY RD .93 MI, St. Tammany, LA
US0190
FairOver: TCHEFUNCTE RIVER
US0190, St. Tammany, LA
US0190
FairOver: PONCHITOLAWA CREEK
US 190, St. Tammany, LA
US0190
FairOver: PONCHITOLAWA CR
US 190, St. Tammany, LA
LA0040
FairOver: SIMALOUSA CREEK
1.7 M SE OF LA 437, St. Tammany, LA
LA0059
FairOver: CHINCHUBA BRANCH
1.6 M N OF I-12, St. Tammany, LA
LA0059
FairOver: DRAIN
3.0 M N OF I-12, St. Tammany, LA
LA0059
FairOver: ABITA RIVER
4.0 M N OF I-12, St. Tammany, LA
US0190
FairOver: OVER FRENCH BRANCH
US 190 LOG MI 2.89, St. Tammany, LA
Browns Village Rd
FairOver: BAYOU VINCENT BRIDGE
.1 MI N. JCT I-10 & US 11, St. Tammany, LA
Davis Landing Rd
FairOver: GUM BAYOU BRIDGE
0.2 MI EAST OF 1090, St. Tammany, LA
US0190
FairOver: FAIRWAY DRIVE OVERPASS
US 190 LOG MI 4.62, St. Tammany, LA
Read our methodology — how this data is sourced, computed, and verified.
Related
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |