Total bridges
115
Public highway bridges in Alachua County
County profile · official public datasets
Alachua County, FL
115 public highway bridges tracked in the FHWA National Bridge Inventory: 52.2% rated Good, 47% Fair, 0.9% Poor.
- 115
- Public bridges
- 52.2%
- Good condition
- 0.9%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Alachua County pairs a better-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- Top 31%
- lowest Poor share in state
- 0.9%
- Poor-condition share
- 115
- public highway bridges
- 1971
- 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.
Alachua County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Alachua County ranks #21 of 67 Florida counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0.9%). Alachua County, Florida contains 115 public highway bridges. Roughly 52.2% are rated “Good,” 47% “Fair,” and 0.9% “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
52.2%
60 of 115 rated 7-9
Fair condition
47%
54 of 115 rated 5-6
Poor condition
0.9%
1 of 115 rated 4 or below
In-state Poor-share rank
#21 of 67
Among Florida counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 115 NBI-tracked bridges by lowest applicable component rating.
Good 52.2% (60)
Fair 47% (54)
Poor 0.9% (1)
Alachua County's Poor-condition bridges carry 11,300 vehicle crossings a day
That is 0.8% of the county's reported daily bridge traffic on 0.9% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 11,300 crossings a day against 14,481 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 115 of 115 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
67.8% of Alachua County's bridges have passed the 50-year mark
78 of the 115 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 52.2% 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 100% of the county's Poor-condition bridge traffic
SR-26 over HATCHET CREEK, built 1959, carries 11,300 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 1-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 11,300 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Alachua County's bridges were built
115 bridges with a recorded construction year, grouped by decade
- 1920s 1
1920–1929
1 bridges
- 1930s 1
1930–1939
1 bridges
- 1940s 4
1940–1949
4 bridges
- 1950s 19
1950–1959
19 bridges
- 1960s
1960–1969
50 bridges
- 1970s 6
1970–1979
6 bridges
- 1980s 9
1980–1989
9 bridges
- 1990s 9
1990–1999
9 bridges
- 2000s 12
2000–2009
12 bridges
- 2010s 4
2010–2019
4 bridges
What this shows Construction peaked in the 1960s, when 50 of the county's bridges still in the inventory were built, which is 43.5% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1971, 12 years older than the Florida average of 1983.
How Alachua County compares with Florida's closest counties by inventory size
The 5 Florida counties nearest Alachua County in number of bridges, with their condition splits. Its 0.9% Poor share is the 3rd-lowest of these 6. Its average build year of 1971 against a peer-group mean of 1984 is 13 years older.
Showing the 5 closest of 66 Florida counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Gadsden County | 121 | 25.6% | 61.2% | 13.2% | 1980 |
| Indian River County | 120 | 75% | 23.3% | 1.7% | 1989 |
| Alachua County (this page) | 115 | 52.2% | 47% | 0.9% | 1971 |
| Lake County | 113 | 67.3% | 32.7% | 0% | 1990 |
| Columbia County | 112 | 50.9% | 48.2% | 0.9% | 1970 |
| Sumter County | 112 | 68.8% | 31.3% | 0% | 1991 |
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 Alachua 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 Alachua County, both outside Florida so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside FL (115 bridges here).
- Walton County, GA · 115 bridges
- Latah County, ID · 115 bridges
- Whitley County, IN · 115 bridges
- Carver County, MN · 115 bridges
Similar average build year
Nearest mean year-built outside FL (1971 here).
- Wayne County, MI · avg 1971 · 1,026 bridges
- Baltimore County, MD · avg 1971 · 783 bridges
- Washington County, PA · avg 1971 · 655 bridges
- Linn County, OR · avg 1971 · 566 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (115)
SR-20 WB
GoodOver: LOCHLOOSA CREEK
3.5 MI. W. OF US-301, Alachua, FL
Built 2004 Load: 46.6 t ADT: 4,150
SR-20 EB
GoodOver: LOCHLOOSA CREEK
3.5 MI. W. OF US-301, Alachua, FL
Built 2005 Load: 46.6 t ADT: 4,150
NW 156TH AVE
GoodOver: ROCKY CREEK
1 MI WEST OF SR 121, Alachua, FL
Built 1988 Load: 46.7 t ADT: 750
NE 31ST AVE
GoodOver: LITTLE HATCHET CREEK
0.2 MI WEST OF SR 24, Alachua, FL
Built 1975 Load: 51.2 t ADT: 1,200
NW 59TH TERRACE
GoodOver: TURKEY CREEK
1.2 MI S OF US 441, Alachua, FL
Built 1989 Load: 52.9 t ADT: 31
US-41 (SR-25)
GoodOver: SANTA FE RIVER
2 MI. N. OF SR-236, Alachua, FL
Built 2002 Load: 53.3 t ADT: 4,800
NW 8TH AVENUE
GoodOver: BRANCH OF POSSUM CREEK
0.2 MI EAST OF SR 121, Alachua, FL
Built 1968 Load: 55.9 t ADT: 6,600
SR-20
GoodOver: US-301 (SR-200)/CSXRR
IN HAWTHORNE, Alachua, FL
Built 2005 Load: 56.9 t ADT: 7,700
NW 23RD BLVD
GoodOver: HOGTOWN CREEK
0.3 MI WEST OF US 441, Alachua, FL
Built 1966 Load: 57.2 t ADT: 9,300
SR-121
GoodOver: BRANCH OF HOGTOWN CREEK
1.5 MI. N. OF SR-26, Alachua, FL
Built 1963 Load: 58.8 t ADT: 15,500
SR-121
GoodOver: SANTA FE RIVER
0.3 MILES N. OF CR-239, Alachua, FL
Built 2002 Load: 59.9 t ADT: 4,500
CR 1474
GoodOver: LOCHLOOSA CREEK
1.8 MI EAST OF CR 234, Alachua, FL
Built 1993 Load: 70.7 t ADT: 550
NW 91ST STREET
GoodOver: PLEASANT BROOK
0.7 MI SOUTH OF CR 236, Alachua, FL
Built 1985 Load: 78.7 t ADT: 161
NW 8TH AVENUE
GoodOver: BRANCH OF HOGTOWN CREEK
0.7 MI EAST OF SR 121, Alachua, FL
Built 1968 Load: 84.7 t ADT: 6,600
SR-26
PoorOver: HATCHET CREEK
1.2 MI. E. OF SR-222, Alachua, FL
Built 1959 Load: 32.6 t ADT: 11,300
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.