Total bridges
80
Public highway bridges in Moffat County
County profile · official public datasets
Moffat County, CO
80 public highway bridges tracked in the FHWA National Bridge Inventory: 28.8% rated Good, 65% Fair, 6.3% Poor.
- 80
- Public bridges
- 28.8%
- Good condition
- 6.3%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Moffat 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.
- 42nd
- of 64 on Poor share
- 6.3%
- Poor-condition share
- 80
- public highway bridges
- 1973
- 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.
Moffat County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Moffat County ranks #42 of 64 Colorado counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.3%). Moffat County, Colorado contains 80 public highway bridges. Roughly 28.8% are rated “Good,” 65% “Fair,” and 6.3% “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
28.8%
23 of 80 rated 7-9
Fair condition
65%
52 of 80 rated 5-6
Poor condition
6.3%
5 of 80 rated 4 or below
In-state Poor-share rank
#42 of 64
Among Colorado counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 80 NBI-tracked bridges by lowest applicable component rating.
Good 28.8% (23)
Fair 65% (52)
Poor 6.3% (5)
Moffat County's Poor-condition bridges carry 1,874 vehicle crossings a day
That is 3.2% of the county's reported daily bridge traffic on 6.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 375 crossings a day against 1,060 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 79 of 80 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
43.8% of Moffat County's bridges have passed the 50-year mark
35 of the 80 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 28.8% 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 80% of the county's Poor-condition bridge traffic
SH 13 ML over FORTIFICATION CREEK, built 1982, carries 1,500 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 5-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 1,874 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Moffat County's bridges were built
80 bridges with a recorded construction year, grouped by decade
- 1930s 6
1930–1939
6 bridges
- 1940s 4
1940–1949
4 bridges
- 1950s
1950–1959
13 bridges
- 1960s 7
1960–1969
7 bridges
- 1970s
1970–1979
13 bridges
- 1980s
1980–1989
23 bridges
- 1990s 9
1990–1999
9 bridges
- 2000s 4
2000–2009
4 bridges
- 2020s 1
2020–2029
1 bridges
What this shows Construction peaked in the 1980s, when 23 of the county's bridges still in the inventory were built, which is 28.8% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year is 1973, 9 years older than the Colorado average of 1982.
How Moffat County compares with Colorado's closest counties by inventory size
The 5 Colorado counties nearest Moffat County in number of bridges, with their condition splits. Its 6.3% Poor share is the 4th-lowest of these 6. Its average build year of 1973 against a peer-group mean of 1976 is in line with the group.
Showing the 5 closest of 63 Colorado counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Grand County | 88 | 43.2% | 51.1% | 5.7% | 1986 |
| Elbert County | 85 | 11.8% | 82.4% | 5.9% | 1968 |
| Chaffee County | 84 | 28.6% | 65.5% | 6% | 1973 |
| Moffat County (this page) | 80 | 28.8% | 65% | 6.3% | 1973 |
| Clear Creek County | 77 | 36.4% | 57.1% | 6.5% | 1978 |
| Washington County | 75 | 16% | 77.3% | 6.7% | 1975 |
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 Moffat 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 Moffat County, both outside Colorado so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside CO (80 bridges here).
- Burke County, GA · 80 bridges
- Gooding County, ID · 80 bridges
- Madison County, ID · 80 bridges
- Washington County, ID · 80 bridges
Similar average build year
Nearest mean year-built outside CO (1973 here).
- Jefferson County, AL · avg 1973 · 1,068 bridges
- Erie County, NY · avg 1973 · 906 bridges
- Davidson County, TN · avg 1973 · 832 bridges
- Lancaster County, PA · avg 1973 · 801 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (52)
County Road 104
FairOver: Miller Creek
2.8 Mi East of US Hwy 40, Moffat, CO
Built 1930 Load: 8.2 t ADT: 18
County Road 83
FairOver: GREEN RIVER
2.9 Mi. S of St Hwy 318, Moffat, CO
Built 1954 Load: 10.9 t ADT: 36
County Road 47
FairOver: Williams Fork River
JUST W of ST Hwy 13 MP 78, Moffat, CO
Built 1988 Load: 11.1 t ADT: 23
County Road 18
FairOver: Fortification Creek
0.2 Mi South of St Hwy 13, Moffat, CO
Built 1950 Load: 15.2 t ADT: 71
County Road 19
FairOver: Yampa River
1.4 Mi North of US Hwy 40, Moffat, CO
Built 1940 Load: 16.6 t ADT: 79
Thirteenth Street
FairOver: Fortification Creek
100 Ft E of Yampa Avenue, Moffat, CO
Built 1939 Load: 16.7 t ADT: 127
Stock Drive
FairOver: Fortification Creek
0.2 Mi West of Preese St, Moffat, CO
Built 1940 Load: 16.7 t ADT: 342
First Street
FairOver: Fortification Creek
0.7 Mi East of St Hwy 394, Moffat, CO
Built 1939 Load: 16.9 t ADT: 1,991
County Road 1
FairOver: Slater Creek
1.1 M S. of WYM St Hwy 70, Moffat, CO
Built 1940 Load: 17.1 t ADT: 179
County Road 37
FairOver: Williams Fork River
S of Co Rd 317 near MP 6, Moffat, CO
Built 1939 Load: 18.0 t ADT: 28
County Road 25
FairOver: Yampa River
0.31 M N of 12 M Gulch Rd, Moffat, CO
Built 1990 Load: 19.6 t ADT: 10
County Road 38
FairOver: Slater Creek
0.16 Mi West of Co Rd 1, Moffat, CO
Built 1978 Load: 20.1 t ADT: 36
SH 318 ML
FairOver: YAMPA RIVER
5.7 MI NW OF MAYBELL, Moffat, CO
Built 1952 Load: 20.9 t ADT: 230
County Road 104
FairOver: Little Red Wash
6.4 Mi West of US Hwy 40, Moffat, CO
Built 1948 Load: 22.4 t
County Road 18S
FairOver: Fortification Creek
0.11 Mi East of St Hwy 13, Moffat, CO
Built 1987 Load: 22.5 t ADT: 303
US 40 ML WB
FairOver: FORTIFICATION CREEK
IN CRAIG, Moffat, CO
Built 1952 Load: 22.7 t ADT: 3,000
US 40 ML
FairOver: LAY CREEK
13.2 MI EAST OF MAYBELL, Moffat, CO
Built 1960 Load: 23.1 t ADT: 940
County Road 112
FairOver: Fortification Creek
0.22 Mi So. St Hwy 13, Moffat, CO
Built 1950 Load: 23.6 t ADT: 184
County Road 65
FairOver: S F Williams Fork River
0.77 Mi. So of RC Line, Moffat, CO
Built 1986 Load: 23.7 t ADT: 33
SH 13 ML
FairOver: RR SPUR
2.7 Mi West of Craig, Moffat, CO
Built 1978 Load: 23.8 t ADT: 2,800
County Road 17
FairOver: Lay Creek
4.5 Mi North of US Hwy 40, Moffat, CO
Built 1955 Load: 24.2 t ADT: 37
County Road 17
FairOver: Lay Creek
9.9 Mi North of US Hwy 40, Moffat, CO
Built 1955 Load: 24.4 t ADT: 31
PARK ENTRANCE ROA
FairOver: GREEN RIVER RELIEF
Colorado State HWY. 40 to, Moffat, CO
Built 1960 Load: 24.5 t ADT: 50
County Road 17
FairOver: Lay Creek
5.3 Mi North of US Hwy 40, Moffat, CO
Built 1955 Load: 24.6 t ADT: 35
County Road 17
FairOver: Yampa River
7.3 Mi South of US Hwy 40, Moffat, CO
Built 1968 Load: 25.0 t ADT: 105
US 40 ML
FairOver: MAYBELL DITCH
2.8 MI EAST OF MAYBELL, Moffat, CO
Built 1963 Load: 25.6 t ADT: 760
US 40 ML
FairOver: BIG WOLF CREEK
26 MI E. OF DINOSAUR, Moffat, CO
Built 1969 Load: 26.3 t ADT: 630
County Road 17
FairOver: Lay Creek
0.5 Mi South of US Hwy 40, Moffat, CO
Built 1960 Load: 26.9 t ADT: 60
SH 13 ML
FairOver: SAND GULCH
4.9 MI NORTH OF CRAIG, Moffat, CO
Built 1986 Load: 27.9 t ADT: 2,000
County Road 124
FairOver: Slater Creek
0.4 Mi West of Co Rd1, Moffat, CO
Built 1983 Load: 27.9 t ADT: 101
County Road 53
FairOver: Lay Creek
0.2 Mi South of US Hwy 40, Moffat, CO
Built 1959 Load: 28.4 t ADT: 21
County Road 74
FairOver: Lay Creek
0.28 Mi East of US Hwy 40, Moffat, CO
Built 1990 Load: 29.3 t ADT: 82
County Road 34N
FairOver: Vermillion Creek
SE of St Hwy 318 mp 15, Moffat, CO
Built 1987 Load: 29.6 t ADT: 35
SH 13 ML
FairOver: COAL MINE ROAD
40 MI NORTH OF MEEKER, Moffat, CO
Built 1973 Load: 30.1 t ADT: 1,500
SH 13 ML
FairOver: WILLIAMS FK RIVER
11.5 MI S OF CRAIG, Moffat, CO
Built 1980 Load: 30.2 t ADT: 1,500
County Road 4
FairOver: Shell Creek
49.0 Mi West of St Hwy 13, Moffat, CO
Built 1964 Load: 31.2 t ADT: 66
County Road 70
FairOver: Willow Creek
3.6 Mi SW of Co Rd 101, Moffat, CO
Built 1955 Load: 31.8 t ADT: 14
Doyan Avenue
FairOver: Pine Ridge Gulch
30 Ft S of First Street, Moffat, CO
Built 1983 Load: 32.3 t ADT: 1,331
County Road 108
FairOver: Fortification Creek
300 Ft West of St Hwy 13, Moffat, CO
Built 1989 Load: 32.3 t ADT: 18
Tenth Street
FairOver: Fortification Creek
50 Ft E of Rose Street, Moffat, CO
Built 1986 Load: 32.7 t ADT: 1,452
Fourth Street
FairOver: Fortification Creek
500 Ft E of Lincoln St., Moffat, CO
Built 1985 Load: 34.1 t ADT: 759
County Road 4
FairOver: Little Snake River
28.4 Mi West of St Hwy 13, Moffat, CO
Built 1976 Load: 36.9 t ADT: 288
SH 13 ML
FairOver: YAMPA RIVER
2 MI S. OF CRAIG, Moffat, CO
Built 1972 Load: 37.2 t ADT: 2,800
County Road 53
FairOver: Yampa River
3.8 Mi. So. of US Hwy 40, Moffat, CO
Built 1992 Load: 39.6 t ADT: 25
SH 13 ML
FairOver: FOURMILE CREEK
1.2 MI S OF WYO/CO LINE, Moffat, CO
Built 1998 Load: 43.7 t ADT: 1,300
Commerce Street
FairOver: Pine Ridge Gulch
60 Ft S of First Street, Moffat, CO
Built 1980 Load: 50.3 t ADT: 360
County Road 28
FairOver: Elkhead Res. Spillway
0.9 mi SE of Co.RD. 29, Moffat, CO
Built 2006 Load: 61.3 t ADT: 101
Douglas Street
FairOver: Pine Ridge Gulch
80 Ft S of First Street, Moffat, CO
Built 1980 Load: 62.4 t ADT: 339
SH 13 ML
FairOver: FORTIFICATION CREEK
23 MI NORTH OF CRAIG, Moffat, CO
Built 1997 Load: 69.2 t ADT: 1,500
SH 13 ML
FairOver: PINE RIDGE GULCH
SW EDGE OF CRAIG, Moffat, CO
Built 1973 Load: 71.4 t ADT: 2,800
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.