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.
Fair-condition bridges (366)
US0171
FairOver: BOGGY BAYOU
6.1 MI. N. OF LA 3276, Caddo, LA
Built 1967 Load: 39.9 t ADT: 8,575
LA0169
FairOver: BOGGY BAYOU
6.71 MI S OF US 78-80, Caddo, LA
Built 1999 Load: 39.9 t ADT: 1,540
I0049
FairOver: RAMPS/T&P RR
1.35M NORTH OF LA 526, Caddo, LA
Built 1991 Load: 39.9 t ADT: 87,567
I0049
FairOver: St. Vincent Ave
0.2 M. South of Kings Hwy, Caddo, LA
Built 1994 Load: 39.9 t ADT: 87,567
Fant Parkway SB
FairOver: BYCYCLE TRAIL
0.5 MI. NO. OF LA 30, Caddo, LA
Built 1974 Load: 39.9 t ADT: 7,678
Keithvil-Kingston
FairOver: CYPRESS BAYOU
1.7 MILES EAST OF US 171, Caddo, LA
Built 2007 Load: 40.2 t ADT: 100
US0171
FairOver: CYPRESS BAYOU
5.2 M N OF LA 3276, Caddo, LA
Built 1976 Load: 40.8 t ADT: 5,850
LA0002
FairOver: HAROLD CREEK
1.75 MI WEST OF LA 1, Caddo, LA
Built 1987 Load: 40.8 t ADT: 1,464
LA0169
FairOver: CROSS BAYOU BRIDGE
1.75 MI NORTH OF I-20, Caddo, LA
Built 1982 Load: 40.8 t ADT: 2,397
LA0169
FairOver: CREEK BRIDGE
1.42 MI N OF I-20, Caddo, LA
Built 1982 Load: 40.8 t ADT: 2,004
LA0001
FairOver: DRAIN
.3 MI NORTH OF LA 526, Caddo, LA
Built 1968 Load: 40.8 t ADT: 16,911
LA0169
FairOver: CREEK BRIDGE
3.9 MI S OF US 80, Caddo, LA
Built 1982 Load: 40.8 t ADT: 2,002
LA0169
FairOver: N. FORK BOGGY BAYOU
4.3 MI S OF US 80, Caddo, LA
Built 1982 Load: 40.8 t ADT: 1,909
LA0169
FairOver: CREEK
.2 NORTH OF LA 789, Caddo, LA
Built 1993 Load: 40.8 t ADT: 1,540
LA0169
FairOver: JOHNSON BRANCH
0.77M NORTH OF LA 789, Caddo, LA
Built 1993 Load: 40.8 t ADT: 1,540
US0080
FairOver: I-220
3.2 MI EAST OF LA 526, Caddo, LA
Built 1985 Load: 41.7 t ADT: 11,856
COURTESY LANE
FairOver: COURTESY LANE DITCH
0.1 MI E OF US 171, Caddo, LA
Built 2005 Load: 42.1 t ADT: 1,500
CLYDE PACE-VIVIAN
FairOver: OLD BLACK BAYOU
2.6 MI. SOUTH OF LA 170, Caddo, LA
Built 1997 Load: 42.4 t ADT: 133
US0171
FairOver: CYPRESS BAYOU RELIEF NO
7.3 MI. S. OF LA 526, Caddo, LA
Built 1953 Load: 42.6 t ADT: 3,031
US0171
FairOver: CYPRESS BAYOU RELIEF NO
7.0 MI. S. OF LA 526, Caddo, LA
Built 1953 Load: 42.6 t ADT: 3,031
US0171
FairOver: BUCHANAN BAYOU
5.3 MI. N. OF LA 3276, Caddo, LA
Built 1967 Load: 42.6 t ADT: 8,575
LA3132
FairOver: LA 523
1.1 MI. E. OF I-49, Caddo, LA
Built 1995 Load: 42.6 t ADT: 53,886
LA3132
FairOver: LA 523
0.8 MI. W. OF LA 526, Caddo, LA
Built 1995 Load: 42.6 t ADT: 23,520
I0020
FairOver: LINE AVE
.14 MI West OF La 3036, Caddo, LA
Built 1966 Load: 42.6 t ADT: 98,318
US0080
FairOver: CROSS BAYOU
1.99 MI. E. OF TEXAS LINE, Caddo, LA
Built 2016 Load: 42.8 t ADT: 3,924
I0020
FairOver: CROSS BAYOU RELF
2.8 MI WEST OF LA 169, Caddo, LA
Built 1964 Load: 43.1 t ADT: 98,318
I0020
FairOver: CROSS BAYOU RELF
2.8 MI WEST OF LA 169, Caddo, LA
Built 1964 Load: 43.1 t ADT: 98,318
LA0175
FairOver: WALLACE BAYOU
4.06 MI SOUTH OF LA 1, Caddo, LA
Built 1982 Load: 43.5 t ADT: 1,400
LA0001
FairOver: MCAIN CREEK
2.42M NW OF LA1/US71 INTR, Caddo, LA
Built 1993 Load: 43.5 t ADT: 21,933
LA0001
FairOver: TIGER BRANCH
0.1M SOUTH OF LA 538, Caddo, LA
Built 1993 Load: 43.5 t ADT: 2,007
LA0001
FairOver: BLACK BAYOU
5.49M NORTH OF LA 170, Caddo, LA
Built 1993 Load: 43.5 t ADT: 2,032
LA0169
FairOver: PAW PAW BAYOU
5.29 MI NORTH OF I-20, Caddo, LA
Built 1999 Load: 43.5 t ADT: 1,298
LA0001
FairOver: DRAIN
2.15 MI NORTH OF LA 523, Caddo, LA
Built 1968 Load: 43.5 t ADT: 16,911
LA0538
FairOver: MCCAIN CREEK
2.09 MI NORTH OF US 71, Caddo, LA
Built 1980 Load: 43.5 t ADT: 1,568
I0020
FairOver: DRAIN
2.7 MI WEST OF LA 169, Caddo, LA
Built 1964 Load: 43.5 t ADT: 98,318
I0020
FairOver: DRAIN
2.7 MI WEST OF LA 169, Caddo, LA
Built 1964 Load: 43.5 t ADT: 98,318
PROVIDENCE ROAD
FairOver: TRIBUTARY TO BOGGY BAYOU
3.0 MI S OF LA 169, Caddo, LA
Built 2019 Load: 44.4 t ADT: 100
LINWOOD AVE.
FairOver: BOGGY BAYOU RELIEF
3.1 MI S OF LA 526, Caddo, LA
Built 2018 Load: 44.4 t ADT: 260
US0171
FairOver: BOGGY BAYOU
2.6 MI. S. OF LA 526, Caddo, LA
Built 1953 Load: 44.5 t ADT: 16,911
LA0173
FairOver: SODA LAKE CANAL
1.94 M E OF JCT OF LA 1, Caddo, LA
Built 2000 Load: 44.5 t ADT: 713
MONKHOUSE DR
FairOver: I-20
1.0 MI EAST OF I-220, Caddo, LA
Built 1965 Load: 44.5 t ADT: 28,450
PINES RD
FairOver: I-20
1.9 MI EAST OF LA 526, Caddo, LA
Built 1977 Load: 45.4 t ADT: 35,800
US0171
FairOver: SOUTH BRUSH BAYOU
1.2 MI. N. OF LA 3132, Caddo, LA
Built 1976 Load: 46.3 t ADT: 17,212
Ellerbe Rd
FairOver: ELLERBY RD. BAYOU PIERRE
270 FT SO INT LA 175, Caddo, LA
Built 1982 Load: 48.0 t ADT: 315
Leonard Rd
FairOver: LEONARD RD OVER BA PIERR
0.8 MI SW OF LA1 RT.#122, Caddo, LA
Built 1983 Load: 48.0 t ADT: 3,900
MEADOW LANE
FairOver: BRUSHY BAYOU
0.22 MI W OF US 171, Caddo, LA
Built 1956 Load: 48.6 t ADT: 1,200
I0020
FairOver: SAM R FERTITTA STREET
1.0 MI EAST OF US I-49, Caddo, LA
Built 1964 Load: 49.9 t ADT: 98,318
I0020
FairOver: SAM R. FERTITTA STREET
0.24 MI West of LA 3036, Caddo, LA
Built 1964 Load: 49.9 t ADT: 98,318
VIRGINIA AVE
FairOver: VIRGINIA AVE. DITCH
0.05 MI E OF US 171, Caddo, LA
Built 1965 Load: 52.2 t ADT: 100
US0080
FairOver: DRAIN
0.14 MI EAST OF LA 169, Caddo, LA
Built 1986 Load: 55.3 t ADT: 11,342
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.