County profile · official public datasets

Mohave County, AZ

641 public highway bridges tracked in the FHWA National Bridge Inventory: 71.6% rated Good, 27.8% Fair, 0.6% Poor.

641
Public bridges
71.6%
Good condition
0.6%
Poor condition

The verdict

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

Mohave County posts a top-quartile lowest Poor-condition share among rated counties in the state across large county bridge inventory.

Top 20%
lowest Poor share in state
0.6%
Poor-condition share
641
public highway bridges
1976
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.

Mohave County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Mohave County ranks #3 of 15 Arizona counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0.6%). Mohave County, Arizona contains 641 public highway bridges. Roughly 71.6% are rated “Good,” 27.8% “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

641

Public highway bridges in Mohave County

Good condition

71.6%

459 of 641 rated 7-9

Fair condition

27.8%

178 of 641 rated 5-6

Poor condition

0.6%

4 of 641 rated 4 or below

In-state Poor-share rank

#3 of 15

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

Condition distribution

Share of 641 NBI-tracked bridges by lowest applicable component rating.

Good
71.6% (459)
Fair
27.8% (178)
Poor
0.6% (4)

Mohave County's Poor-condition bridges carry 91,317 vehicle crossings a day

That is 1.6% of the county's reported daily bridge traffic on 0.6% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 22,829 crossings a day against 9,289 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 641 of 641 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

51.8% of Mohave County's bridges have passed the 50-year mark

332 of the 641 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 71.6% 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 35.3% of the county's Poor-condition bridge traffic

I 15 over Virgin River, built 1967, carries 32,192 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 4-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 91,317 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Mohave County's bridges were built

641 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1960s, when 149 of the county's bridges still in the inventory were built, which is 23.2% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1976) matches the Arizona average (1977).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

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

The 5 Arizona counties nearest Mohave County in number of bridges, with their condition splits. Its 0.6% Poor share is the 2nd-lowest of these 6. Its average build year of 1976 against a peer-group mean of 1966 is 10 years newer.

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

Bridge inventory size and condition shares for Mohave County and the 5 Arizona counties closest to it in inventory size
County Bridges Poor
Pinal County 716 1%
Mohave County (this page) 641 0.6%
Yavapai County 543 0.6%
Cochise County 501 2.2%
Coconino County 405 1.2%
La Paz County 306 3.6%

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 Mohave 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 Mohave County, both outside Arizona so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside AZ (641 bridges here).

Similar average build year

Nearest mean year-built outside AZ (1976 here).

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

All 641 Good 459 Fair 178 Poor 4

Good-condition bridges (459)

SR 68

Good

Over: Arabian Wash

18.8 mi W of US 93, Mohave, AZ

Built 2001 Load: 89.8 t ADT: 14,276

I-40 EB

Good

Over: Wash

11.6 mi S Jct US 93, Mohave, AZ

Built 1966 Load: 89.8 t ADT: 7,480

SR 68

Good

Over: Wash

14.7 mi W Jct US 93, Mohave, AZ

Built 2001 Load: 89.8 t ADT: 14,276

US 93

Good

Over: Wash

9.3 mi S of I-40 Jct, Mohave, AZ

Built 2005 Load: 89.8 t ADT: 4,789

US 93

Good

Over: Wash

7.5 mi S of I-40 Jct, Mohave, AZ

Built 2005 Load: 89.8 t ADT: 4,789

US 93

Good

Over: Wash

5.14 mi S of I-40 Jct, Mohave, AZ

Built 2005 Load: 89.8 t ADT: 4,789

US 93

Good

Over: Bottleneck Wash

5 mi S of I-40 Jct, Mohave, AZ

Built 2005 Load: 89.8 t ADT: 4,789

US 93

Good

Over: Wash

4.4 mi S of Jct I-40, Mohave, AZ

Built 2005 Load: 89.8 t ADT: 4,789

SR 95

Good

Over: Wash

MP 168.71, Mohave, AZ

Built 1973 Load: 89.8 t ADT: 5,726

US 93

Good

Over: Wash

40.3 mi N Jct with SR 71, Mohave, AZ

Built 1999 Load: 89.8 t ADT: 7,094

US 93

Good

Over: Wash

38.7 mi N Jct of SR 71, Mohave, AZ

Built 1999 Load: 89.8 t ADT: 3,346

US 93

Good

Over: Wash

38.7 mi N Jct of SR 71, Mohave, AZ

Built 1999 Load: 89.8 t ADT: 3,748

US 93

Good

Over: Wash

38.3 mi N Jct w/ SR 71, Mohave, AZ

Built 1999 Load: 89.8 t ADT: 3,346

US 93

Good

Over: Wash

38.3 mi N Jct of SR 71, Mohave, AZ

Built 1999 Load: 89.8 t ADT: 3,573

US 93

Good

Over: McGarrys Wash

3.3 mi S Jct I 40, Mohave, AZ

Built 2008 Load: 89.8 t ADT: 4,789

US 93

Good

Over: Wash

3.2 mi S Jct I 40, Mohave, AZ

Built 2008 Load: 89.8 t ADT: 4,789

US 93

Good

Over: Wash

13.8 mi S Jct I 40, Mohave, AZ

Built 2009 Load: 89.8 t ADT: 9,582

US 93

Good

Over: Wash

13.7 mi S Jct I 40, Mohave, AZ

Built 2009 Load: 89.8 t ADT: 4,789

US 93 SB

Good

Over: Wash

19.0 mi S Jct I-40, Mohave, AZ

Built 2011 Load: 89.8 t ADT: 9,582

US 93

Good

Over: Wash

21.8 mi S Jct I-40, Mohave, AZ

Built 2012 Load: 89.8 t ADT: 9,582

US 93

Good

Over: Wash

21.3 mi S Jct I-40, Mohave, AZ

Built 2012 Load: 89.8 t ADT: 9,582

US 93

Good

Over: Wash

23.9 mi S Jct I-40, Mohave, AZ

Built 2012 Load: 89.8 t ADT: 9,582

US 93

Good

Over: Wash

22.0 mi S Jct I-40, Mohave, AZ

Built 1954 Load: 89.8 t ADT: 9,582

US 93

Good

Over: Bat Wash

11.5 mi S Jct I-40, Mohave, AZ

Built 2016 Load: 89.8 t ADT: 9,582

I-40 WB FR Rd

Good

Over: Wash

19.2 mi East Jct SR 95, Mohave, AZ

Built 1985 Load: 89.8 t ADT: 100

Old Hwy 91

Good

Over: Coon Creek

5.2 mi SW Littlefield TI, Mohave, AZ

Built 1929 Load: 89.8 t ADT: 150

Arroyo Vista Drive

Good

Over: Wash

0.2 mi S Jct Bullhead Pky, Mohave, AZ

Built 1994 Load: 89.8 t ADT: 1,476

Bullhead Parkway

Good

Over: Silver Creek Wash

5.3 mi NW Jct SR 95, Mohave, AZ

Built 1994 Load: 89.8 t ADT: 14,276

Bullhead Parkway

Good

Over: Wash

9.0 mi NE Jct SR 95, Mohave, AZ

Built 1994 Load: 89.8 t ADT: 14,276

Pegasus Ranch Road

Good

Over: Wash

0.2 mi S McCormick Blvd, Mohave, AZ

Built 1994 Load: 89.8 t ADT: 1,376

Stockton Hill Rd

Good

Over: Devlin Wash

400 ft S Jct College Dr, Mohave, AZ

Built 1999 Load: 89.8 t ADT: 7,353

Bank Street

Good

Over: Mohave Wash Channel

0.3 mi S Jct Northern Ave, Mohave, AZ

Built 2004 Load: 89.8 t ADT: 5,472

Shopping Center Dr

Good

Over: Drainage Channel

W of SR95 S of Bull. Pkwy, Mohave, AZ

Built 2007 Load: 89.8 t ADT: 4,276

Avalon Ave

Good

Over: Avalon Drain

230 ft SE Jct PV Blvd N, Mohave, AZ

Built 2000 Load: 89.8 t ADT: 4,080

Avalon Ave

Good

Over: Havasupai Wash

0.1 mi N Jct Kiowa Blvd N, Mohave, AZ

Built 1998 Load: 89.8 t ADT: 4,080

Acoma Blvd S

Good

Over: Jamaica Drain

200 ft SE Jct Jamaica Bl, Mohave, AZ

Built 1999 Load: 89.8 t ADT: 8,460

Acoma Blvd S

Good

Over: Indian Peak Wash

0.2 mi SE Jct Jamaica Bl, Mohave, AZ

Built 1999 Load: 89.8 t ADT: 7,834

Garvey Dr

Good

Over: Avalon Drain

420 ft S Jct PV Blvd N, Mohave, AZ

Built 2002 Load: 89.8 t ADT: 500

Lake Havasu Ave N

Good

Over: Willow Wash

180 ft S Jct Willow Ave, Mohave, AZ

Built 1997 Load: 89.8 t ADT: 15,846

Palo Verde Blvd S

Good

Over: Palmtree Wash

0.3 mi S Jct Kiowa Blvd N, Mohave, AZ

Built 2002 Load: 89.8 t ADT: 5,095

Palo Verde Blvd S

Good

Over: El Dorado Wash

290 ft S Jct Kiowa Blvd S, Mohave, AZ

Built 1996 Load: 89.8 t ADT: 6,636

Southwind Ave

Good

Over: Chemehuevi Wash

0.6 mi E Jct Acoma Blvd S, Mohave, AZ

Built 1997 Load: 89.8 t ADT: 1,788

Thunderbolt Ave

Good

Over: Mockingbird Wash

0.2 mi N Jct OroGrande Bl, Mohave, AZ

Built 2008 Load: 89.8 t ADT: 2,540

McCulloch Blvd S

Good

Over: Chemehuevi Wash

0.04 mi S of Chemehuevi, Mohave, AZ

Built 2005 Load: 89.8 t ADT: 5,319

Chenoweth Dr

Good

Over: Wash

0.1 mi E Jct SR 95, Mohave, AZ

Built 2004 Load: 89.8 t ADT: 1,390

Little Finger Rd

Good

Over: Wash

0.1 mi E Jct McCulloch Bl, Mohave, AZ

Built 2000 Load: 89.8 t ADT: 200

Alamo Rd

Good

Over: Wash

4.7 mi SE Jct I-40, Mohave, AZ

Built 1996 Load: 89.8 t ADT: 371

Yucca Drive

Good

Over: Wash

1.8 mi W Jct I-40, Mohave, AZ

Built 2004 Load: 89.8 t ADT: 200

Shinarump Dr CMP

Good

Over: Wash

0.4 mi NW Jct Oatman Rd, Mohave, AZ

Built 1997 Load: 89.8 t ADT: 111

Tomahawk Dr

Good

Over: Wash

0.5 mi S Jct Lazy Y-U Dr, Mohave, AZ

Built 1984 Load: 89.8 t ADT: 100

Read our methodology - how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
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.