County profile · official public datasets

Yavapai County, AZ

543 public highway bridges tracked in the FHWA National Bridge Inventory: 63.2% rated Good, 36.3% Fair, 0.6% Poor.

543
Public bridges: 63.2%
Good condition: 0.6%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Yavapai County pairs a top-quartile lowest Poor-condition share among rated counties in the state with an older average build year than the state inventory.

Top 13%
lowest Poor share in state: 0.6%
Poor-condition share: 543
public highway bridges: 1970
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.

Yavapai County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Yavapai County ranks #2 of 15 Arizona counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0.6%). Yavapai County, Arizona contains 543 public highway bridges. Roughly 63.2% are rated “Good,” 36.3% “Fair,” and 0.6% “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

543

Public highway bridges in Yavapai County

Good condition

63.2%

343 of 543 rated 7-9

Fair condition

36.3%

197 of 543 rated 5-6

Poor condition

0.6%

3 of 543 rated 4 or below

In-state Poor-share rank

#2 of 15

Among Arizona counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 543 NBI-tracked bridges by lowest applicable component rating.

Good

63.2% (343)

Fair

36.3% (197)

Poor

0.6% (3)

Yavapai County's Poor-condition bridges carry 6,554 vehicle crossings a day

That is 0.2% of the county's reported daily bridge traffic on 0.6% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 2,185 crossings a day against 7,286 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 543 of 543 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

59.7% of Yavapai County's bridges have passed the 50-year mark

324 of the 543 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 63.2% 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 89.2% of the county's Poor-condition bridge traffic

SR 169 over Ash Creek, built 1977, carries 5,844 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 3-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 6,554 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1900s

2
1910s

2
1920s

14
1930s

59
1940s

15
1950s

72
1960s

120
1970s

77
1980s

43
1990s

58
2000s

57
2010s

23
2020s

1

What this shows Construction peaked in the 1960s, when 120 of the county's bridges still in the inventory were built, which is 22.1% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1970, 7 years older than the Arizona average of 1977.

How Yavapai County compares with Arizona's closest counties by inventory size

The 5 Arizona counties nearest Yavapai County in number of bridges, with their condition splits. Its 0.6% Poor share is the 1st-lowest of these 6. Its average build year of 1970 against a peer-group mean of 1967 is in line with the group.

Showing the 5 closest of 14 Arizona counties eligible for comparison.

Bridge inventory size and condition shares for Yavapai County and the 5 Arizona counties closest to it in inventory size
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 (this page)	543	63.2%	36.3%	0.6%	1970
Cochise County	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 Yavapai 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 Yavapai County, both outside Arizona so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside AZ (543 bridges here).

Grafton County, NH · 544 bridges
Polk County, IA · 545 bridges
East Baton Rouge County, LA · 548 bridges
Adams County, CO · 535 bridges

Similar average build year

Nearest mean year-built outside AZ (1970 here).

Hamilton County, OH · avg 1970 · 783 bridges
Garfield County, OK · avg 1970 · 504 bridges
San Luis Obispo County, CA · avg 1970 · 401 bridges
Somerset County, NJ · avg 1970 · 397 bridges

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 543 Good 343 Fair 197 Poor 3

Good-condition bridges (343)

Sort:

Yavapai County Bridge Snapshot

Condition distribution

Yavapai County's Poor-condition bridges carry 6,554 vehicle crossings a day

59.7% of Yavapai County's bridges have passed the 50-year mark

One structure carries 89.2% of the county's Poor-condition bridge traffic

How Yavapai County compares with Arizona's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

Good-condition bridges (343)

Avenida de Piedras

SR 89A Spur NB

SR 260

SR 69 SB

SB 40

SR 89

US 93

SR 260

SB 40

I 40; E & W

Ironsp-Skull Vly R

Ironsp-Skull Vly R

Kirkland Road

Hillside Rd

SR 89A Spur NB

I-40 EB

I-40 WB

SR 260

SR 260

IRR SR 66

IRR SR 66

IRR SR 66

I 40; EB

I 40; WB

Co. 74-Old Blk Cyn

Cornville Road

Cornville Road

Cordes Lakes Dr

Maggie Mine Rd

Beaverhead Flat Rd

Boynton Canyon Rd

Wild Horse Mesa Dr

Tissaw Rd

Comanche Dr

Monte Tesoro Dr

Navajo Dr

Warpaint Place

Granite Park Dr

Onyx Dr

Turquoise Dr

Date Creek Rd

Date Creek Rd

Inscription Cyn Dr

40B

SR 89; SB

US 93

US 93

US 93

US 93

US 93

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