St. John the Baptist County, LA
40 public highway bridges
St. John the Baptist County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, St. John the Baptist County, Louisiana contains 40 public highway bridges. Roughly 32.5% are rated “Good,” 50% “Fair,” and 2.5% “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 (40)
LA3213
UnknownOver: GRAMERCY BRIDGE WEST BAN
GRAMERCY, St. John the Baptist, LA
I0010
UnknownOver: US 51 & SWAMPS
I0010, St. John the Baptist, LA
I0010
UnknownOver: US 51 & SWAMPS
I0010, St. John the Baptist, LA
I0055
UnknownOver: I-55 OVER US 51 & SWAMP
I055, St. John the Baptist, LA
I0055
UnknownOver: I-10 & US 51 & SWAMP
11 Mi S of LA 22, St. John the Baptist, LA
LA3188
UnknownOver: LA 3188 OVER I-10
2.2 M N OF US 61, St. John the Baptist, LA
I0010
FairOver: RESERVE RELIEF CANAL
I 10, St. John the Baptist, LA
I0055
FairOver: DRAIN PIPE XING
NORTH OF US 51 & I55 EXIT, St. John the Baptist, LA
I0055
FairOver: DRAIN PIPE XING
2.0 M N - I55 & US51 EXIT, St. John the Baptist, LA
I0055
FairOver: DRAIN PIPE XING
2.4 M N - I55 & US51 EXIT, St. John the Baptist, LA
I0055
FairOver: DRAIN PIPE XING
3 MI N - I55 & US 51 JCT, St. John the Baptist, LA
I0055
FairOver: DRAIN PIPE XING
M N - US51 & I55 JCT, St. John the Baptist, LA
I0055
FairOver: DRAIN PIPE XING
7.6 M N - I55 & US51 JCT, St. John the Baptist, LA
I0055
FairOver: DRAINAGE PIPE XING
2.0 M N -I55 & US51 EXIT, St. John the Baptist, LA
I0055
FairOver: I 55 SOUTH ON RAMP RUDDC
0.1 M W OF US 51, St. John the Baptist, LA
St. Andrews Blvd.
FairOver: CANAL
1.6 MILES EAST OF LA 3188, St. John the Baptist, LA
St. Andrews Blvd.
FairOver: CANAL
1.6 MILES EAST OF LA 3188, St. John the Baptist, LA
US0051
FairOver: DRAINAGE CANAL
0.1 M NE OF I-55, St. John the Baptist, LA
I0010
FairOver: EB ON RAMP (US51)
I0010, St. John the Baptist, LA
US0051
FairOver: DRAINAGE CANAL
0.1 M NE OF I-55, St. John the Baptist, LA
I0010
FairOver: HOPE CANAL
I0010, St. John the Baptist, LA
I0010
FairOver: HOPE CANAL
I0010, St. John the Baptist, LA
I0010
FairOver: MISSISSIPPI BAYOU
I0010, St. John the Baptist, LA
I0010
FairOver: MISSISSIPPI BAYOU
I0010, St. John the Baptist, LA
I0010
FairOver: Drain
0.10 Mi. E. of LA 3188, St. John the Baptist, LA
I0010
FairOver: Drain
0.75 Mi. E. of LA 3188, St. John the Baptist, LA
I0055
GoodOver: SWAMP
12.30 MILES NORTH OF JCT, St. John the Baptist, LA
I0055
GoodOver: SWAMP
4.50 MILES NORTH OF JCT I, St. John the Baptist, LA
I0010
GoodOver: RESERVE RELIEF CANAL
I 10, St. John the Baptist, LA
LA3188
GoodOver: DRAIN
1.45 MI. NO. U.S. 61, St. John the Baptist, LA
I0010
GoodOver: WB OFF RAMP (US51)
10.4 Mi. W. of I-310, St. John the Baptist, LA
I0055
GoodOver: I-55 ON RAMP NORTH @ US5
0.1 M W OF US 51, St. John the Baptist, LA
I0055
GoodOver: I-55 OFF RAMP @ US 51
0.1 M N OF US 51, St. John the Baptist, LA
I0055
GoodOver: I-55 NORTH OFF RAMP RUDC
0.1 M W OF US 51, St. John the Baptist, LA
I0055
GoodOver: I-55 NORTH ON RAMP RUDDC
0.1 M W OF US 51, St. John the Baptist, LA
I0055
GoodOver: SWAMP
0.1 M W OF US 51, St. John the Baptist, LA
Greenwood Dr
GoodOver: CANAL
1.0 MILES SOUTH OF CARROL, St. John the Baptist, LA
FAIRWAY DRIVE
GoodOver: CANAL
0.82 MI. E. OF LA 3188, St. John the Baptist, LA
Country Club Dr
GoodOver: CANAL
1.6 MILES NORTH OF LA 61, St. John the Baptist, LA
Hope Canal Rd
PoorOver: HOPE CANAL
0.38 MILES NORTH OF US.61, St. John the Baptist, LA
Read our methodology - how this data is sourced, computed, and verified.
Related
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.