St. Tammany County, LA
360 public highway bridges
St. Tammany County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, St. Tammany County, Louisiana contains 360 public highway bridges. Roughly 29.7% are rated “Good,” 53.1% “Fair,” and 5.6% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
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.
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Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.