County profile · official public datasets

Hot Springs County, WY

39 public highway bridges tracked in the FHWA National Bridge Inventory: 25.6% rated Good, 69.2% Fair, 5.1% Poor.

39
Public bridges: 25.6%
Good condition: 5.1%
Poor condition

The verdict

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

Hot Springs County posts a better-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.

Top 43%
lowest Poor share in state: 5.1%
Poor-condition share: 39
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.

Hot Springs County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Hot Springs County ranks #10 of 23 Wyoming counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 5.1%). Hot Springs County, Wyoming contains 39 public highway bridges. Roughly 25.6% are rated “Good,” 69.2% “Fair,” and 5.1% “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

Public highway bridges in Hot Springs County

Good condition

25.6%

10 of 39 rated 7-9

Fair condition

69.2%

27 of 39 rated 5-6

Poor condition

5.1%

2 of 39 rated 4 or below

In-state Poor-share rank

#10 of 23

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

Condition distribution

Share of 39 NBI-tracked bridges by lowest applicable component rating.

Good

25.6% (10)

Fair

69.2% (27)

Poor

5.1% (2)

Hot Springs County's Poor-condition bridges carry 3,108 vehicle crossings a day

That is 7.7% of the county's reported daily bridge traffic on 5.1% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,554 crossings a day against 797 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 39 of 39 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

48.7% of Hot Springs County's bridges have passed the 50-year mark

19 of the 39 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 25.6% 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 54.2% of the county's Poor-condition bridge traffic

Broadway Street over Big Horn River, built 1968, carries 1,685 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 2-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 3,108 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1930s

1
1940s

2
1950s

10
1960s

4
1970s

6
1980s

6
1990s

7
2000s

2
2010s

1

What this shows Construction peaked in the 1950s, when 10 of the county's bridges still in the inventory were built, which is 25.6% of those with a recorded year. That cohort is now 65 to 74 years old in the 2024 inventory. Its average build year (1974) matches the Wyoming average (1976).

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

The 5 Wyoming counties nearest Hot Springs County in number of bridges, with their condition splits. Its 5.1% Poor share is the 3rd-lowest of these 6. Its average build year of 1974 against a peer-group mean of 1978 is in line with the group.

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

Bridge inventory size and condition shares for Hot Springs County and the 5 Wyoming counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Goshen County	106	19.8%	76.4%	3.8%	1974
Big Horn County	91	25.3%	67%	7.7%	1972
Washakie County	61	41%	49.2%	9.8%	1979
Weston County	43	25.6%	65.1%	9.3%	1978
Hot Springs County (this page)	39	25.6%	69.2%	5.1%	1974
Niobrara County	34	44.1%	52.9%	2.9%	1988

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 Hot Springs 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 Hot Springs County, both outside Wyoming so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside WY (39 bridges here).

Costilla County, CO · 39 bridges
Ouray County, CO · 39 bridges
Edmonson County, KY · 39 bridges
McCreary County, KY · 39 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 39 Good 10 Fair 27 Poor 2

All bridges (39)

Sort:

Hot Springs County Bridge Snapshot

Condition distribution

Hot Springs County's Poor-condition bridges carry 3,108 vehicle crossings a day

48.7% of Hot Springs County's bridges have passed the 50-year mark

One structure carries 54.2% of the county's Poor-condition bridge traffic

How Hot Springs 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 (39)

Hs Cnty Rd 14

Hs Cnty Rd 1

WYO 172

Hs Cnty Rd 21

WYO 170

US 20

WYO 431

WYO 120

US 20

US 20

US 20

Hs Cnty Rd 25

US 20

1426: RED HOLE ROA

WYO 120

WYO 120

WYO 173

US 20

S 8th Street

US 20

US 20

WYO 120

Park Street

WYO 120

WYO 173

Hot Springs Blvd

WYO 172

Hs Cnty Rd 1

FSR

WYO 171

US 20

WYO 120

WYO 172

Hs Cnty Rd 6

Hs Cnty Rd 6

WYO 170

Hs Cnty Rd 27

WYO 120

Broadway Street

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