Total bridges
548
Public highway bridges in East Baton Rouge County
County profile · official public datasets
548 public highway bridges tracked in the FHWA National Bridge Inventory: 41.8% rated Good, 38.5% Fair, 19.7% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
East Baton Rouge County posts a higher-than-median Poor-condition share among rated counties in the state across large county bridge inventory.
Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.
According to the Federal Highway Administration's 2024 National Bridge Inventory, East Baton Rouge County ranks #55 of 64 Louisiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 19.7%). East Baton Rouge County, Louisiana contains 548 public highway bridges. Roughly 41.8% are rated “Good,” 38.5% “Fair,” and 19.7% “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.
Total bridges
548
Public highway bridges in East Baton Rouge County
Good condition
41.8%
229 of 548 rated 7-9
Fair condition
38.5%
211 of 548 rated 5-6
Poor condition
19.7%
108 of 548 rated 4 or below
In-state Poor-share rank
#55 of 64
Among Louisiana counties with 5+ bridges, lower share ranks better
Share of 548 NBI-tracked bridges by lowest applicable component rating.
That is 4.3% of the county's reported daily bridge traffic on 19.7% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 3,844 crossings a day against 15,159 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.
Computed over the 542 of 548 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
282 of the 548 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 41.8% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.
Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.
US0190 over CREEK, built 1960, carries 44,391 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 108-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 411,263 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
548 bridges with a recorded construction year, grouped by decade
1930–1939
4 bridges
1940–1949
6 bridges
1950–1959
40 bridges
1960–1969
166 bridges
1970–1979
119 bridges
1980–1989
57 bridges
1990–1999
25 bridges
2000–2009
38 bridges
2010–2019
79 bridges
2020–2029
14 bridges
What this shows Construction peaked in the 1960s, when 166 of the county's bridges still in the inventory were built, which is 30.3% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1980) matches the Louisiana average (1982).
The 5 Louisiana counties nearest East Baton Rouge County in number of bridges, with their condition splits. Its 19.7% Poor share is the 6th-lowest of these 6. Its average build year of 1980 against a peer-group mean of 1982 is in line with the group.
Showing the 5 closest of 63 Louisiana counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Caddo County | 682 | 39.9% | 53.7% | 6.5% | 1986 |
| East Baton Rouge County (this page) | 548 | 41.8% | 38.5% | 19.7% | 1980 |
| Rapides County | 523 | 53.3% | 39.6% | 7.1% | 1987 |
| Tangipahoa County | 477 | 40.7% | 45.9% | 13.4% | 1977 |
| Calcasieu County | 463 | 19% | 73% | 8% | 1983 |
| Orleans County | 382 | 43.7% | 46.3% | 9.9% | 1976 |
Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to East Baton Rouge County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for East Baton Rouge County, both outside Louisiana so the neighborhoods are not the same-state size table above.
Nearest county inventories outside LA (548 bridges here).
Nearest mean year-built outside LA (1980 here).
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Over: I-110;MONTE SANO BAYOU
0.4 M N of I-110&US 61, East Baton Rouge, LA
Over: INTERSTATE 10
0.2 mi. N of LA 427, East Baton Rouge, LA
Over: SANDY CREEK
LA0037, East Baton Rouge, LA
Over: I-110
1.4 M NE of I-10&I-110, East Baton Rouge, LA
Over: DRAIN BAYOU
0.4 MI W. Of Joor Rd, East Baton Rouge, LA
Over: CLOUDS CANAL
.33 MI N LA 73 LA37 JCT, East Baton Rouge, LA
Over: MELROSE CANAL
.94 MI N LA 73 LA 37 JCT, East Baton Rouge, LA
Over: LIVELY BAYOU
US0190, East Baton Rouge, LA
Over: BLACKWATER BAYOU
0.2 Mi E of LA 410, East Baton Rouge, LA
Over: CLAYCUT BAYOU
2.7 Mi N of LA 948, East Baton Rouge, LA
Over: JONES CREEK
2.2 Miles E of US 61, East Baton Rouge, LA
Over: DRAINAGE BAYOU
1.6 MI NE. JCT I-10, East Baton Rouge, LA
Over: DRAIN BAYOU
.50 MI SOUTH OF BURBANK, East Baton Rouge, LA
Over: WALDEN LAKE
0.1 Mi. S of Walden Rd, East Baton Rouge, LA
Over: DRAIN BAYOU
.20 MI N.SHERWOOD FR.BLVD, East Baton Rouge, LA
Over: STREAM NO NAME
1 M S of LA 64&LA 67, East Baton Rouge, LA
Over: COPPER MILL BAYOU
1.8 M N of LA 64, East Baton Rouge, LA
Over: NORTH CANAL
2.0 M N of LA 19&LA 64, East Baton Rouge, LA
Over: MISSISSIPPI RIVER
I0010, East Baton Rouge, LA
Over: K.C.S. RR
PERKINS ROAD, East Baton Rouge, LA
Over: CYPRESS BAYOU
2.2 MI NW JCT LA 64, East Baton Rouge, LA
Over: CAPITOL LAKE
1.3 M N of I-10&I-110, East Baton Rouge, LA
Over: JACKS BAYOU
0.7 M N of LA 73, East Baton Rouge, LA
Over: ELBOW BAYOU
2.1M NW of LA 42&LA 327-S, East Baton Rouge, LA
Over: WARD CREEK N.BR.
LA0426, East Baton Rouge, LA
Over: DAWSON CREEK
1.69 M. NE OF LA 3064, East Baton Rouge, LA
Over: LIVELY BAYOU
2.4 Miles E of US61, East Baton Rouge, LA
Over: CYPRESS BAYOU
LA0423, East Baton Rouge, LA
Over: DRAINAGE BAYOU
0.8 MI S. OF CENTRAL, East Baton Rouge, LA
Over: DRAINAGE CANAL
0.8 Mi N of LA 408, East Baton Rouge, LA
Over: BOGGY CUT BAYOU
5.3 M E of LA 73, East Baton Rouge, LA
Over: DALRYMPLE DR/CITY PK LAK
I0010, East Baton Rouge, LA
Over: JONES CREEK
US0190, East Baton Rouge, LA
Over: DIVERSION CANAL
1.0 MI N JCT I-10 LA 42, East Baton Rouge, LA
Over: LITTLE SANDY CREEK
3.5 MI.E.LA64 LA410, East Baton Rouge, LA
Over: COMITE RIVER
2.6 M E of LA 67&LA 408, East Baton Rouge, LA
Over: WARDS CREEK
I0010, East Baton Rouge, LA
Over: CITY STREETS
1.5 M S of I-110&US 61, East Baton Rouge, LA
Over: CITY STREETS
1.5 M S of I-110&US 61, East Baton Rouge, LA
Over: DRAINAGE CANAL
BLVD. DE PROVINCE, East Baton Rouge, LA
Over: JONES CREEK
1.7 M N FLORIDA BLVDUS190, East Baton Rouge, LA
Over: LITTLE SANDY CREEK
2.6 MI. SW. OF PRIDE, East Baton Rouge, LA
Over: DALRYMPLE DR/CITY PK LAK
I0010, East Baton Rouge, LA
Over: LA 427-ACADIAN TW/KCS RR
I0010, East Baton Rouge, LA
Over: WARDS CREEK
I0010, East Baton Rouge, LA
Over: DRAIN CANAL
.30 MI E. OF GARDERE LN., East Baton Rouge, LA
Over: LIVELY BAYOU
US0190, East Baton Rouge, LA
Over: COLLEGE DRIVE
I0010, East Baton Rouge, LA
Over: US 61B & LA 73
JCT of I-110 & LA 73, East Baton Rouge, LA
Over: CANAL
400 FT S of LA 408, East Baton Rouge, LA
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.