Total bridges
501
Public highway bridges in Cochise County
County profile · official public datasets
Cochise County, AZ
501 public highway bridges tracked in the FHWA National Bridge Inventory: 55.3% rated Good, 42.5% Fair, 2.2% Poor.
- 501
- Public bridges
- 55.3%
- Good condition
- 2.2%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Cochise County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- 10th
- of 15 on Poor share
- 2.2%
- Poor-condition share
- 501
- public highway bridges
- 1956
- 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.
Cochise County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Cochise County ranks #10 of 15 Arizona counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 2.2%). Cochise County, Arizona contains 501 public highway bridges. Roughly 55.3% are rated “Good,” 42.5% “Fair,” and 2.2% “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
55.3%
277 of 501 rated 7-9
Fair condition
42.5%
213 of 501 rated 5-6
Poor condition
2.2%
11 of 501 rated 4 or below
In-state Poor-share rank
#10 of 15
Among Arizona counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 501 NBI-tracked bridges by lowest applicable component rating.
Good 55.3% (277)
Fair 42.5% (213)
Poor 2.2% (11)
Cochise County's Poor-condition bridges carry 14,174 vehicle crossings a day
That is 0.3% of the county's reported daily bridge traffic on 2.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,289 crossings a day against 12,135 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 501 of 501 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
87.6% of Cochise County's bridges have passed the 50-year mark
439 of the 501 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 55.3% 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 43.4% of the county's Poor-condition bridge traffic
SR 80 over San Pedro River, built 1960, carries 6,156 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 11-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 14,174 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Cochise County's bridges were built
501 bridges with a recorded construction year, grouped by decade
- 1900s 3
1900–1909
3 bridges
- 1910s 4
1910–1919
4 bridges
- 1920s 19
1920–1929
19 bridges
- 1930s
1930–1939
104 bridges
- 1940s
1940–1949
63 bridges
- 1950s
1950–1959
71 bridges
- 1960s
1960–1969
143 bridges
- 1970s 38
1970–1979
38 bridges
- 1980s 19
1980–1989
19 bridges
- 1990s 10
1990–1999
10 bridges
- 2000s 16
2000–2009
16 bridges
- 2010s 10
2010–2019
10 bridges
- 2020s 1
2020–2029
1 bridges
What this shows Construction peaked in the 1960s, when 143 of the county's bridges still in the inventory were built, which is 28.5% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1956, 21 years older than the Arizona average of 1977.
How Cochise County compares with Arizona's closest counties by inventory size
The 5 Arizona counties nearest Cochise County in number of bridges, with their condition splits. Its 2.2% Poor share is the 5th-lowest of these 6. Its average build year of 1956 against a peer-group mean of 1970 is 14 years older.
Showing the 5 closest of 14 Arizona counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Pinal County | 716 | 63.5% | 35.5% | 1% | 1973 |
| Mohave County | 641 | 71.6% | 27.8% | 0.6% | 1976 |
| Yavapai County | 543 | 63.2% | 36.3% | 0.6% | 1970 |
| Cochise County (this page) | 501 | 55.3% | 42.5% | 2.2% | 1956 |
| Coconino County | 405 | 51.9% | 46.9% | 1.2% | 1969 |
| La Paz County | 306 | 64.1% | 32.4% | 3.6% | 1961 |
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 Cochise 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 Cochise County, both outside Arizona so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside AZ (501 bridges here).
- Ventura County, CA · 501 bridges
- Lake County, IN · 501 bridges
- Snohomish County, WA · 500 bridges
- Garfield County, OK · 504 bridges
Similar average build year
Nearest mean year-built outside AZ (1956 here).
- Philadelphia County, PA · avg 1956 · 585 bridges
- Hampden County, MA · avg 1956 · 428 bridges
- Stanislaus County, CA · avg 1956 · 386 bridges
- Washington County, MD · avg 1956 · 300 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Poor-condition bridges (11)
Rucker Rd
PoorOver: White Water Draw
1.0 mi E Leslie Cyn Rd, Cochise, AZ
Built 1937 Load: 5.4 t ADT: 50
Douglas Road
PoorOver: Mule Gulch
100 ft E Jct SR 80, Cochise, AZ
Built 1920 Load: 17.2 t ADT: 1,000
Moon Canyon Ave
PoorOver: Storm Drain
E Jct Tombstone Canyon, Cochise, AZ
Built 1900 Load: 17.2 t ADT: 300
Arizona Street
PoorOver: Drain Ditch
1.7 mi S Jct SR 80, Cochise, AZ
Built 1933 Load: 20.9 t ADT: 1,000
FAS 460;Airport Rd
PoorOver: I-10
7.9 mi E Jct US191 South, Cochise, AZ
Built 1965 Load: 29.0 t ADT: 1,068
Arizona Street
PoorOver: Black Knob Drainage
1.7 mi S Jct SR 80, Cochise, AZ
Built 1917 Load: 29.0 t ADT: 1,000
US 191; Cochise Rd
PoorOver: I-10
Jct US 191 South, Cochise, AZ
Built 1958 Load: 32.7 t ADT: 800
ANDREWS ROAD
PoorOver: HUACHUCA CANYON CREEK
220 W OF HINES RD INTS, Cochise, AZ
Built 1930 Load: 32.7 t ADT: 300
ALLISON & WINROW
PoorOver: SOLDIER CREEK
BLDG 14490, Cochise, AZ
Built 1986 Load: 32.7 t ADT: 1,500
CANELO RD
PoorOver: SLAUGHTERHOUSE WASH
DEAD MANS CURVE, Cochise, AZ
Built 1930 Load: 32.7 t ADT: 1,000
SR 80
PoorOver: San Pedro River
5.5 mi SE Jct SR B10, Cochise, AZ
Built 1960 Load: 33.6 t ADT: 6,156
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.