County profile · official public datasets

Converse County, WY

137 public highway bridges tracked in the FHWA National Bridge Inventory: 14.6% rated Good, 72.3% Fair, 13.1% Poor.

137
Public bridges: 14.6%
Good condition: 13.1%
Poor condition

The verdict

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

Converse County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

23rd
of 23 on Poor share: 13.1%
Poor-condition share: 137
public highway bridges: 1974
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.

Converse County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Converse County ranks #23 of 23 Wyoming counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 13.1%). Converse County, Wyoming contains 137 public highway bridges. Roughly 14.6% are rated “Good,” 72.3% “Fair,” and 13.1% “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

137

Public highway bridges in Converse County

Good condition

14.6%

20 of 137 rated 7-9

Fair condition

72.3%

99 of 137 rated 5-6

Poor condition

13.1%

18 of 137 rated 4 or below

In-state Poor-share rank

#23 of 23

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

Condition distribution

Share of 137 NBI-tracked bridges by lowest applicable component rating.

Good

14.6% (20)

Fair

72.3% (99)

Poor

13.1% (18)

Converse County's Poor-condition bridges carry 39,687 vehicle crossings a day

That is 11.3% of the county's reported daily bridge traffic on 13.1% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 2,205 crossings a day against 3,092 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 137 of 137 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

64.2% of Converse County's bridges have passed the 50-year mark

88 of the 137 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 14.6% 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 12.6% of the county's Poor-condition bridge traffic

W Richards Street over North Platte River, built 1984, carries 5,005 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 18-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 39,687 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

1
1940s

2
1950s

18
1960s

50
1970s

28
1980s

12
1990s

16
2000s

8
2010s

2

What this shows Construction peaked in the 1960s, when 50 of the county's bridges still in the inventory were built, which is 36.5% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1974) matches the Wyoming average (1976).

How Converse County compares with Wyoming's closest counties by inventory size

The 5 Wyoming counties nearest Converse County in number of bridges, with their condition splits. Its 13.1% Poor share is the 6th-lowest of these 6. Its average build year of 1974 against a peer-group mean of 1979 is 5 years older.

Showing the 5 closest of 22 Wyoming counties eligible for comparison.

Bridge inventory size and condition shares for Converse County and the 5 Wyoming counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Campbell County	152	25.7%	71.7%	2.6%	1980
Converse County (this page)	137	14.6%	72.3%	13.1%	1974
Natrona County	135	30.4%	65.2%	4.4%	1977
Uinta County	132	18.9%	69.7%	11.4%	1976
Lincoln County	129	31.8%	62.8%	5.4%	1985
Albany County	124	33.1%	65.3%	1.6%	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 Converse 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 Converse County, both outside Wyoming so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside WY (137 bridges here).

Fremont County, CO · 137 bridges
Prowers County, CO · 137 bridges
Fremont County, ID · 137 bridges
Orange County, IN · 137 bridges

Similar average build year

Nearest mean year-built outside WY (1974 here).

Knox County, TN · avg 1974 · 588 bridges
Summit County, OH · avg 1974 · 563 bridges
Onondaga County, NY · avg 1974 · 472 bridges
Orange County, NY · avg 1974 · 472 bridges

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

All 137 Good 20 Fair 99 Poor 18

All bridges (137)

Sort:

Converse County Bridge Snapshot

Condition distribution

Converse County's Poor-condition bridges carry 39,687 vehicle crossings a day

64.2% of Converse County's bridges have passed the 50-year mark

One structure carries 12.6% of the county's Poor-condition bridge traffic

How Converse County compares with Wyoming's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

All bridges (137)

Co Cnty Rd 24

Co Cnty Rd 15

Co Cnty Rd 19

Co Cnty Rd 36

Co Rd 45S

Co Cnty Rd 17

Co Cnty Rd 46

Co Cnty Rd 1A

Co Cnty Rd 7

Co Cnty Rd 1

I-25 Service Road

Co Cnty Rd 38

US 20/26/87

WYO 94

Co Cnty Rd 11

Co Cnty Rd 43

I-25 NBL

I-25 NBL

I-25 SBL

I-25 NBL

I-25 SBL

I-25 SBL

I-25 NBL

I-25 NBL

I-25 NBL

I-25 NBL

Unnamed Road

WYO 59

I-25 NBL

I-25 NBL

I-25 NBL

I-25 SBL

I-25 NBL

US 18

WYO 95

Co Cnty Rd 29

Co Cnty Rd 11

Co Cnty Rd 11

I-25 SBL

Co Cnty Rd 48

I-25 NBL

I-25 SBL

I-25 NBL

I-25 SBL

I-25 NBL

I-25 NBL

I-25 SBL

WYO 59

I-25 SBL

Co Cnty Rd 57

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