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)
Olive St
FairOver: CREEK
0.4MI.EASTOF PONCH D, St. Tammany, LA
Coffee St
FairOver: CREEK
0.2MI.N.OF LAKE SHOR, St. Tammany, LA
Keen Rd
FairOver: ABITA RIVER
0.32M SOUTH OF LA 435, St. Tammany, LA
House Cr. Rd
FairOver: HOUSE CREEK
2.0 M NORTH OF LA 40, St. Tammany, LA
Joseph Rd
FairOver: BOGUE FALAYA RIVER
1.3 MI EAST OF LA 25, St. Tammany, LA
KING'S Rd
FairOver: WRIGHTS Cr
1.0.MI. NORTH.OF.LA., St. Tammany, LA
Carrey St
FairOver: CREEK
0.4 MI.NE OF US LA.1, St. Tammany, LA
Royal 18th Dr
FairOver: CREEK
ROYAL 18 ESTATES SUB, St. Tammany, LA
Madison St
FairOver: LITTLE BAYOU
0.1MI.EAST OF LAFITT, St. Tammany, LA
Middle Pearl Dr
FairOver: BAYOU
1.5 M E US190/INDIAN V.RD, St. Tammany, LA
Bryan St
FairOver: CREEK
.05 MI.E.OF CLEVELAN, St. Tammany, LA
Cousin St
FairOver: CREEK
0.1.MILE.W.OF. US.19, St. Tammany, LA
Cousin St
FairOver: CREEK
0.4 MI.EAST OF BUS 1, St. Tammany, LA
Lock #2 Rd
FairOver: BRUSHY BRANCH
4.5 MI N OF JCT 435 & 41, St. Tammany, LA
LA0040
FairOver: SAVANNAH BRANCH
LA0040, St. Tammany, LA
LA1085
FairOver: BRIDGE OVER FOX BRANCH
1.20 M SOUTH OF I-12, St. Tammany, LA
LA0036
FairOver: DRAIN
1.3 M W OF LA 41, St. Tammany, LA
Eden Isle Subd.
FairOver: BR. OVER EDEN ISLES CANA
2.4 MI S JCT US N & LA433, St. Tammany, LA
Eden Isle Subd.
FairOver: BR. OVER EDEN ISLES CANA
2.4 MI S JCT US 11 & 433, St. Tammany, LA
Lee Rd
FairOver: HOUSE CREEK
0.2 M NORTH OF LA 1129, St. Tammany, LA
LA0450
FairOver: DRAIN
1.1 M NW OF LA 25, St. Tammany, LA
LA0040
FairOver: CREEK
1.4 M W OF LA 1077, St. Tammany, LA
MARLIN DRIVE
FairOver: CANAL
0.17 MI S OF LA.433, St. Tammany, LA
MORAY DRIVE
FairOver: CANAL
0.61 MI S OF LA 433, St. Tammany, LA
LA0036
FairOver: CREEK
0.2 M E OF LA 434, St. Tammany, LA
LA0022
FairOver: BLACK RIVER
LA 22, St. Tammany, LA
LA0036
FairOver: ICG RAILROAD
LA0036, St. Tammany, LA
LA0450
FairOver: MARYS BRANCH
2.5 M NW OF LA 25, St. Tammany, LA
Lake Rd
FairOver: LACOMBE BAYOU
1080M SOUTH OF LA 434, St. Tammany, LA
Jackson Rd
FairOver: CREEK CANAL
0.2 MILES NORTH OF US190, St. Tammany, LA
W. Hall Ave
FairOver: CREEK
0.6MI.E.OF CARROL RD, St. Tammany, LA
Berry Todd Rd
FairOver: BRIDGE OVER CREEK
0.90 MI E. OF LA 434, St. Tammany, LA
Krentel Rd
FairOver: BRIDGE OVER LACOMBE BAYO
0.7 MI N. OF LA 434, St. Tammany, LA
Lavinghouse Rd
FairOver: SIMMONS CREEK
0.72M SOUTH OF LA 40, St. Tammany, LA
LA0059
FairOver: LONG BRANCH BAYOU
0.9 M N OF LA 36, St. Tammany, LA
Old Hwy. 41 Spur
FairOver: DRAIN
0.20 SOUTHWEST OF LA 41, St. Tammany, LA
3RD STREET
FairOver: CANAL
1.25 MI EAST OF US 190, St. Tammany, LA
FISCHER DRIVE
FairOver: GUM BAYOU
0.06 MI EAST OF LA 1090, St. Tammany, LA
LA1077
FairOver: SAVANNAH BRANCH
LA1077, St. Tammany, LA
N. Blvd.
FairOver: CANAL
1.0 MILE SOUTH OF I 12 OF, St. Tammany, LA
N. Pearl St
FairOver: BR. OVER FRENCH BRANCH
N. 190 ON PEARL ST. 0.60, St. Tammany, LA
Florida Ave
FairOver: CANAL
0.7 MI EAST OF 190 B, St. Tammany, LA
LA1078
FairOver: COWPEN BRANCH
LA1078, St. Tammany, LA
LA1078
FairOver: HORSE BRANCH
LA1078, St. Tammany, LA
SHADY VIEW LANE
FairOver: DRAIN
0.60 MI W OF LA.21, St. Tammany, LA
Honey Island Swamp
FairOver: DUCK BAYOU
0.5M EAST OF I-59, St. Tammany, LA
LA0016
FairOver: WRIGHTS CREEK
LA0016, St. Tammany, LA
LA0016
FairOver: HOLDENS CREEK
LA0016, St. Tammany, LA
US0011
FairOver: BAYOU POTASSAY
0.2 M N OF LA 433, St. Tammany, LA
LA1077
FairOver: TCHEFUNCTE RIVER
LA1077, 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.