Total bridges
682
Public highway bridges in Caddo County
County profile · official public datasets
Caddo County, LA
682 public highway bridges tracked in the FHWA National Bridge Inventory: 39.9% rated Good, 53.7% Fair, 6.5% Poor.
- 682
- Public bridges
- 39.9%
- Good condition
- 6.5%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Caddo County posts a top-quartile lowest Poor-condition share among rated counties in the state across large county bridge inventory.
- Top 17%
- lowest Poor share in state
- 6.5%
- Poor-condition share
- 682
- public highway bridges
- 1986
- avg year built
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.
Caddo County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Caddo County ranks #11 of 64 Louisiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.5%). Caddo County, Louisiana contains 682 public highway bridges. Roughly 39.9% are rated “Good,” 53.7% “Fair,” and 6.5% “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.
Good condition
39.9%
272 of 682 rated 7-9
Fair condition
53.7%
366 of 682 rated 5-6
Poor condition
6.5%
44 of 682 rated 4 or below
In-state Poor-share rank
#11 of 64
Among Louisiana counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 682 NBI-tracked bridges by lowest applicable component rating.
Good 39.9% (272)
Fair 53.7% (366)
Poor 6.5% (44)
Caddo County's Poor-condition bridges carry 957,768 vehicle crossings a day
That is 7.2% of the county's reported daily bridge traffic on 6.5% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 21,767 crossings a day against 20,351 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 678 of 682 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
24.6% of Caddo County's bridges have passed the 50-year mark
168 of the 682 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 39.9% 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.
One structure carries 10.3% of the county's Poor-condition bridge traffic
I0020 over M.P. RR, built 1965, carries 98,318 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 44-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 957,768 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Caddo County's bridges were built
682 bridges with a recorded construction year, grouped by decade
- 1920s 3
1920–1929
3 bridges
- 1930s 9
1930–1939
9 bridges
- 1940s 11
1940–1949
11 bridges
- 1950s 32
1950–1959
32 bridges
- 1960s
1960–1969
93 bridges
- 1970s
1970–1979
79 bridges
- 1980s
1980–1989
155 bridges
- 1990s
1990–1999
140 bridges
- 2000s 37
2000–2009
37 bridges
- 2010s
2010–2019
111 bridges
- 2020s 12
2020–2029
12 bridges
What this shows Construction peaked in the 1980s, when 155 of the county's bridges still in the inventory were built, which is 22.7% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1986) matches the Louisiana average (1982).
How Caddo County compares with Louisiana's closest counties by inventory size
The 5 Louisiana counties nearest Caddo County in number of bridges, with their condition splits. Its 6.5% Poor share is the 1st-lowest of these 6. Its average build year of 1986 against a peer-group mean of 1981 is 5 years newer.
Showing the 5 closest of 63 Louisiana counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Caddo County (this page) | 682 | 39.9% | 53.7% | 6.5% | 1986 |
| East Baton Rouge County | 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 Caddo County's. Source: FHWA National Bridge Inventory, 2024 release.
Nationwide counties with similar inventory size or average build year
Two NBI-derived peer sets for Caddo County, both outside Louisiana so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside LA (682 bridges here).
- Honolulu County, HI · 682 bridges
- Chester County, PA · 680 bridges
- El Paso County, CO · 686 bridges
- Broward County, FL · 686 bridges
Similar average build year
Nearest mean year-built outside LA (1986 here).
- El Paso County, TX · avg 1986 · 783 bridges
- Weld County, CO · avg 1986 · 614 bridges
- Polk County, IA · avg 1986 · 545 bridges
- Canadian County, OK · avg 1986 · 493 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Good-condition bridges (272)
ROY RD
GoodOver: LOGAN BAYOU
0.2 MI. SOUTH OF LA 173, Caddo, LA
Built 2012 Load: 36.0 t ADT: 900
Keithvil-Sprrdg Rd
GoodOver: TRIB. TO BUCHANAN BAYOU
1.3 MILES WEST OF OLD MAN, Caddo, LA
Built 2007 Load: 36.0 t ADT: 140
I0020
GoodOver: LINWOOD AVE I-49 RAMP
I-20 OVER I-49 RAMP, Caddo, LA
Built 1993 Load: 36.3 t ADT: 87,567
FLOURNOY LUCAS RD
GoodOver: I-49 UNDR FLOURNOY-LUCAS
0.5 M S OF LA 526 INTR, Caddo, LA
Built 1989 Load: 36.3 t ADT: 4,200
I0049
GoodOver: LA 173
OVER LA 173, Caddo, LA
Built 2013 Load: 36.6 t ADT: 29,542
I0049
GoodOver: LA 173
I-49 OVER LA173, Caddo, LA
Built 2013 Load: 36.6 t ADT: 6,846
I0049
GoodOver: US 71
I-49 / US 71 INTG., Caddo, LA
Built 2014 Load: 36.6 t ADT: 53,023
LA0001
GoodOver: KCS RAILROAD
0.43MI NW OF INT. LA 538, Caddo, LA
Built 1994 Load: 37.2 t ADT: 2,007
I0049
GoodOver: HOLLYWOOD AVENUE
0.9 MI N. OF LA 511, Caddo, LA
Built 1993 Load: 37.2 t ADT: 28,142
I0049
GoodOver: OCKLEY DRIVE
1.9 MILES N. OF LA 511, Caddo, LA
Built 1994 Load: 37.2 t ADT: 87,568
I0049
GoodOver: OCKLEY DRIVE
1.9 MILES N. OF LA 511, Caddo, LA
Built 1994 Load: 37.2 t ADT: 28,142
I0049
GoodOver: DRAIN
1.11 M. S. OF LA 530, Caddo, LA
Built 2013 Load: 37.3 t ADT: 29,542
I0049
GoodOver: DRAIN
1.09 M. S.OF LA 530, Caddo, LA
Built 2013 Load: 37.3 t ADT: 6,846
OCKLEY DRIVE
GoodOver: OCKLEY DITCH
1.9 MI NORTH OF LA 511, Caddo, LA
Built 1988 Load: 37.3 t ADT: 300
LA0173
GoodOver: CREEK
2.7 MI S. OF LA 538, Caddo, LA
Built 2013 Load: 37.6 t ADT: 3,057
Latex State Line
GoodOver: WATSON BAYOU
2.4 MI N OF CADDO RD NO., Caddo, LA
Built 2010 Load: 37.9 t ADT: 60
Kingston Rd
GoodOver: BRUSH BAYOU
2.0 MI. SO. OF LA 526, Caddo, LA
Built 2006 Load: 37.9 t ADT: 100
LA0170
GoodOver: CREEK
2.1 MI EAST OF I-49, Caddo, LA
Built 1979 Load: 38.1 t ADT: 1,209
LA0169
GoodOver: CREEK
6.87 MI S OF US 79-80, Caddo, LA
Built 1999 Load: 38.1 t ADT: 1,540
I0049
GoodOver: MYRICKS BAYOU
1.29 M. N. OF LA 169, Caddo, LA
Built 2013 Load: 38.9 t ADT: 29,542
I0049
GoodOver: MYRICKS BAYOU
1.29 M. N. OF LA 169, Caddo, LA
Built 2013 Load: 38.9 t ADT: 6,846
I0049
GoodOver: DOOLEY BAYOU
2.11 M. N. OF LA 169, Caddo, LA
Built 2013 Load: 38.9 t ADT: 29,542
I0049
GoodOver: DOOLEY BAYOU
2.90 M. S. OF LA 530, Caddo, LA
Built 2013 Load: 38.9 t ADT: 6,846
I0049
GoodOver: SWIFT BAYOU
0.55 M. S. OF LA 530, Caddo, LA
Built 2013 Load: 38.9 t ADT: 29,542
I0049
GoodOver: SWIFT BAYOU
0.56 M. S. OF LA 530, Caddo, LA
Built 2013 Load: 38.9 t ADT: 6,846
I0049
GoodOver: LA 2
I-49 / LA 2 INTG., Caddo, LA
Built 2014 Load: 38.9 t ADT: 53,023
LA0525
GoodOver: GILMER BAYOU
1.50 MI. W. OF US 171, Caddo, LA
Built 1986 Load: 39.0 t ADT: 4,294
LA3132
GoodOver: LINWOOD AVE.
1.61 MI. E. OF US 171, Caddo, LA
Built 1988 Load: 39.0 t ADT: 53,886
LA3132
GoodOver: LINWOOD AVE.
0.8 MI. W. OF I-49, Caddo, LA
Built 1988 Load: 39.0 t ADT: 23,520
I0049
GoodOver: ST. VINCENT AVENUE
2.58 M. NORTH OF LA 511, Caddo, LA
Built 1994 Load: 39.0 t ADT: 87,567
LA0523
GoodOver: BAYOU PIERRE
1.82 W. OF JCT OF LA1, Caddo, LA
Built 2011 Load: 39.2 t ADT: 12,580
I0049
GoodOver: I-220
I-49 @ I-220 INTERCHANGE, Caddo, LA
Built 2018 Load: 39.2 t ADT: 87,567
Jefferson Page Rd
GoodOver: PAGE BAYOU
5.0 MI. WEST OF US 80, Caddo, LA
Built 2002 Load: 39.2 t ADT: 60
Gamm Rd
GoodOver: SWIFT BAYOU
0.49 MI. N. OF SELF ROAD, Caddo, LA
Built 2013 Load: 39.5 t ADT: 162
I0049
GoodOver: SELF ROAD
1.63 M. S. OF LA 530, Caddo, LA
Built 2013 Load: 39.5 t ADT: 29,542
I0049
GoodOver: SELF ROAD
1.63 M. N. OF LA 530, Caddo, LA
Built 2013 Load: 39.5 t ADT: 6,846
Sparks-Davis Rd
GoodOver: TRIB TO BUCHANAN BAYOU
0.6 MI. S. OF KEITHVILLE-, Caddo, LA
Built 2013 Load: 39.9 t ADT: 37
LA3132
GoodOver: SPRR
0.1 MI. E. OF US 171, Caddo, LA
Built 1979 Load: 39.9 t ADT: 12,192
Fant Parkway NB
GoodOver: OLD RED R.CHANL
0.3 MI. NO. OF LA 30, Caddo, LA
Built 1974 Load: 39.9 t ADT: 7,678
Fant Parkway SB
GoodOver: OLD RED R.CHANL
0.3 MI. NO. OF LA 30, Caddo, LA
Built 1974 Load: 39.9 t ADT: 7,678
Fant Parkway NB
GoodOver: BYCYCLE TRAIL
0.5 MI. NO. OF LA 30, Caddo, LA
Built 1974 Load: 39.9 t ADT: 7,678
I0220
GoodOver: GROUND
I-49 AT I-220, Caddo, LA
Built 2018 Load: 40.2 t ADT: 87,567
I0049
GoodOver: LA 2
I-49 / LA 2 INTG., Caddo, LA
Built 2014 Load: 40.2 t ADT: 6,846
US0071
GoodOver: LA 1
0.1 MI W JCT LA 1 & US 71, Caddo, LA
Built 1985 Load: 40.8 t ADT: 16,911
US0071
GoodOver: FLAG BRANCH
6.6 MI NORTH OF LA 2, Caddo, LA
Built 1981 Load: 40.8 t ADT: 349
LA0001
GoodOver: MILL CREEK
4.0 MI NORTH OF LA 170, Caddo, LA
Built 1986 Load: 40.8 t ADT: 2,836
LA0001
GoodOver: STATE LINE CREEK
1.7 MI NORTH OF LA 168, Caddo, LA
Built 1986 Load: 40.8 t ADT: 650
LA0169
GoodOver: SODA LAKE CANAL
3.3 MI. E. OF LA 1, Caddo, LA
Built 2013 Load: 41.1 t ADT: 311
LA0523
GoodOver: SAND BEACH BAYOU
0.8 MI W OF JCT LA 1, Caddo, LA
Built 2011 Load: 41.5 t ADT: 10,628
I0049
GoodOver: BLACK BAYOU
1.28 M. N. OF LA 530, Caddo, LA
Built 2013 Load: 41.5 t ADT: 6,846
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
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.