Total bridges
614
Public highway bridges in Weld County
County profile · official public datasets
Weld County, CO
614 public highway bridges tracked in the FHWA National Bridge Inventory: 36.8% rated Good, 58.5% Fair, 4.7% Poor.
- 614
- Public bridges
- 36.8%
- Good condition
- 4.7%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Weld County posts a better-than-median Poor-condition share among rated counties in the state across large county bridge inventory.
- Top 50%
- lowest Poor share in state
- 4.7%
- Poor-condition share
- 614
- public highway bridges
- 1986
- 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.
Weld County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Weld County ranks #32 of 64 Colorado counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 4.7%). Weld County, Colorado contains 614 public highway bridges. Roughly 36.8% are rated “Good,” 58.5% “Fair,” and 4.7% “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
36.8%
226 of 614 rated 7-9
Fair condition
58.5%
359 of 614 rated 5-6
Poor condition
4.7%
29 of 614 rated 4 or below
In-state Poor-share rank
#32 of 64
Among Colorado counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 614 NBI-tracked bridges by lowest applicable component rating.
Good 36.8% (226)
Fair 58.5% (359)
Poor 4.7% (29)
Weld County's Poor-condition bridges carry 120,310 vehicle crossings a day
That is 3.1% of the county's reported daily bridge traffic on 4.7% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 4,149 crossings a day against 8,457 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 614 of 614 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
30.5% of Weld County's bridges have passed the 50-year mark
187 of the 614 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 36.8% 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 13.7% of the county's Poor-condition bridge traffic
US 34 ML WBND over US 85 BUS RT, built 1962, carries 16,500 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 29-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 120,310 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Weld County's bridges were built
614 bridges with a recorded construction year, grouped by decade
- 1930s 9
1930–1939
9 bridges
- 1940s 5
1940–1949
5 bridges
- 1950s 39
1950–1959
39 bridges
- 1960s
1960–1969
101 bridges
- 1970s 53
1970–1979
53 bridges
- 1980s
1980–1989
96 bridges
- 1990s
1990–1999
135 bridges
- 2000s
2000–2009
98 bridges
- 2010s 51
2010–2019
51 bridges
- 2020s 27
2020–2029
27 bridges
What this shows Construction peaked in the 1990s, when 135 of the county's bridges still in the inventory were built, which is 22% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1986) matches the Colorado average (1982).
How Weld County compares with Colorado's closest counties by inventory size
The 5 Colorado counties nearest Weld County in number of bridges, with their condition splits. Its 4.7% Poor share is the 4th-lowest of these 6. Its average build year of 1986 against a peer-group mean of 1987 is in line with the group.
Showing the 5 closest of 63 Colorado counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| El Paso County | 686 | 31.3% | 65.5% | 3.2% | 1984 |
| Weld County (this page) | 614 | 36.8% | 58.5% | 4.7% | 1986 |
| Larimer County | 559 | 49% | 49% | 2% | 1987 |
| Adams County | 535 | 43.9% | 49.2% | 6.9% | 1990 |
| Jefferson County | 464 | 33.8% | 59.9% | 6.3% | 1984 |
| Denver County | 458 | 41.9% | 56.3% | 1.7% | 1991 |
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 Weld 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 Weld County, both outside Colorado so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside CO (614 bridges here).
- Monroe County, NY · 615 bridges
- Allen County, IN · 613 bridges
- Mobile County, AL · 612 bridges
- Contra Costa County, CA · 618 bridges
Similar average build year
Nearest mean year-built outside CO (1986 here).
- El Paso County, TX · avg 1986 · 783 bridges
- Caddo County, LA · avg 1986 · 682 bridges
- Polk County, IA · avg 1986 · 545 bridges
- Canadian County, OK · avg 1986 · 493 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Good-condition bridges (226)
WELD COUNTY ROAD 8
GoodOver: I 25 ML
3 MI NO OF JCT SH 7, Weld, CO
Built 2004 Load: 12.9 t ADT: 10,875
County Road 122
GoodOver: Owl Creek
2.0 Mi E of US Hwy 85, Weld, CO
Built 1984 Load: 17.4 t ADT: 69
95th Avenue
GoodOver: Cache La Poudre River
0.4 Mi N of Co Rd 62, Weld, CO
Built 1988 Load: 18.6 t ADT: 105
County Road 62
GoodOver: Crow Creek
0.8 Mi E of Co Rd 57, Weld, CO
Built 1965 Load: 19.2 t ADT: 39
FRD Rec Area
GoodOver: Local Drainage
NW of Grant & Colo Bl, Weld, CO
Built 2000 Load: 21.5 t ADT: 218
County Road 68
GoodOver: Sanborn Draw
0.2 MI East of Co Rd 83, Weld, CO
Built 2009 Load: 22.3 t ADT: 431
County Road 68
GoodOver: Crow Creek
0.15 Mi E of Co Rd 61, Weld, CO
Built 1965 Load: 22.8 t ADT: 1,051
11th Avenue
GoodOver: Cache La Poudre River
0.2 Mi N. of D Street, Weld, CO
Built 2003 Load: 23.0 t ADT: 7,966
County Road 29
GoodOver: Pierce Lateral Canal
0.9 Mi N of Co Rd 88, Weld, CO
Built 1993 Load: 23.0 t ADT: 1,615
County Road 13
GoodOver: Big Thompson River
0.4 MI North of Co Rd 54, Weld, CO
Built 2009 Load: 23.1 t ADT: 4,741
County Road 23
GoodOver: Big Dry Creek
150 Ft N of Co Rd 8, Weld, CO
Built 1982 Load: 23.2 t ADT: 2,378
County Road 37
GoodOver: Owl Creek
0.6 Mi N of Co Rd 114, Weld, CO
Built 1992 Load: 23.4 t ADT: 36
County Road 38
GoodOver: New Ish Ditch
0.1 Mi E of Co Rd 3, Weld, CO
Built 1960 Load: 24.3 t ADT: 113
County Road 29
GoodOver: Pierce Lateral Canal
0.7 Mi N of Co Rd 88, Weld, CO
Built 1989 Load: 25.3 t ADT: 1,615
I 25 ML & Ramps
GoodOver: CHANNEL MD-B
LONGMONT/DACONO EXIT, Weld, CO
Built 2000 Load: 25.5 t ADT: 91,000
CO RD 8
GoodOver: DRAW AR
0.2 MI EAST OF I76, Weld, CO
Built 1983 Load: 25.5 t ADT: 1,153
SH 14 ML
GoodOver: LITTLE SAND CREEK
18.2 MI E OF JCT US 85, Weld, CO
Built 1963 Load: 25.8 t ADT: 2,300
County Road 57
GoodOver: Geary Creek
0.7 Mi N of Co Rd 128, Weld, CO
Built 1993 Load: 25.9 t ADT: 121
County Road 120
GoodOver: CROW CREEK
1.3 MI E OF CR 83, Weld, CO
Built 2020 Load: 25.9 t ADT: 84
County Road 72
GoodOver: Willow Creek
0.7 Mi E of Co Rd 49, Weld, CO
Built 1960 Load: 26.0 t ADT: 29
County Road 84
GoodOver: Pierce Lateral Canal
0.5 Mi E of Co Rd 25, Weld, CO
Built 1990 Load: 26.4 t ADT: 95
CR 25 (95th Ave.)
GoodOver: Loveland Greeley Canal
0.1 Mi N of Co Rd 52, Weld, CO
Built 1962 Load: 26.6 t ADT: 198
SH 66 ML
GoodOver: SOUTH PLATTE RIVER
.2 MI W OF 85, Weld, CO
Built 1988 Load: 26.7 t ADT: 9,100
County Road 6
GoodOver: Big Dry Creek
0.1 Mi E of Co Rd 19, Weld, CO
Built 1984 Load: 26.9 t ADT: 4,075
County Road 21
GoodOver: Larimer and Weld Canal
100 Ft N of Co Rd 76, Weld, CO
Built 2008 Load: 27.3 t ADT: 233
CENTRAL AVE
GoodOver: KIOWA CREEK
JUST WEST OF WIGGINS, Weld, CO
Built 2005 Load: 27.5 t ADT: 1,300
County Road 23
GoodOver: Big Dry Creek
0.7 Mi N of Co Rd 6, Weld, CO
Built 1995 Load: 27.6 t ADT: 1,041
County Road 2.5
GoodOver: Unknown Canal
0.2 Mi W of CR 29, Weld, CO
Built 2022 Load: 27.9 t ADT: 250
County Road 80
GoodOver: Collins Lateral Ditch
1.4 Mi E of Co Rd 23, Weld, CO
Built 1993 Load: 27.9 t ADT: 355
County Road 96
GoodOver: Coalbank Creek
0.6 Mi E of Co Rd 21, Weld, CO
Built 1991 Load: 28.1 t ADT: 106
CR 50.5
GoodOver: Union Ditch
0.4 MI W. of CR 41, Weld, CO
Built 2017 Load: 28.2 t ADT: 37
SH 392 ML
GoodOver: GREELEY CANAL NO 2
1.2 MI E OF JCT SH 257, Weld, CO
Built 1971 Load: 28.3 t ADT: 14,000
County Road 29
GoodOver: Pierce Lateral Canal
0.3 Mi N of Co Rd 88, Weld, CO
Built 1990 Load: 28.6 t ADT: 1,615
County Road 102
GoodOver: Robinson Creek
0.25 Mi E of Co Rd 41, Weld, CO
Built 1992 Load: 28.8 t ADT: 24
I 25 ML NBND
GoodOver: LITTLE THOMPSON RIVER
6.7 MI N OF JCT SH 66, Weld, CO
Built 2021 Load: 28.9 t ADT: 41,000
County Road 13
GoodOver: St. Vrain Creek
0.5 Mi N of Co Rd 26, Weld, CO
Built 2004 Load: 29.1 t ADT: 29
McClure Ave
GoodOver: Unnamed Stream
110 ft E of Colorado BLVD, Weld, CO
Built 2018 Load: 29.2 t ADT: 2,731
County Road 45
GoodOver: New Cache La Poudre Cana
.8 Mi N of St Hwy 392, Weld, CO
Built 2015 Load: 29.2 t ADT: 137
County Road 68
GoodOver: Crow Creek
0.7 Mi E of Co Rd 59, Weld, CO
Built 2018 Load: 29.2 t ADT: 1,909
County Road 78
GoodOver: Larimer and Weld Canal
0.3 Mi E of Co Rd 27, Weld, CO
Built 1992 Load: 29.2 t ADT: 572
SH 392 ML
GoodOver: GREELEY CANAL NO 2
7.8 MI E OF SH 257, Weld, CO
Built 1969 Load: 29.4 t ADT: 6,500
COUNTY RD 7
GoodOver: NORTH CREEK DRAINAGE
150FT S. OF CR 34.5, Weld, CO
Built 2020 Load: 29.5 t ADT: 3,231
County Road 100
GoodOver: Lone Tree Creek
1.0 Mi E of Co Rd 35, Weld, CO
Built 1991 Load: 29.5 t ADT: 83
County Road 122
GoodOver: Little Owl Creek
0.1 Mi E of US Hwy 85, Weld, CO
Built 1986 Load: 29.7 t ADT: 72
County Road 2
GoodOver: Hudson Annex Canal
0.5 Mi E of Co Rd 45, Weld, CO
Built 2004 Load: 29.8 t ADT: 845
SH 52 ML
GoodOver: BEEBE CANAL
1.2 MI W OF JCT I 76, Weld, CO
Built 1970 Load: 30.3 t ADT: 9,100
I 76 ML
GoodOver: DRAW
18.6 MI NE OF JCT SH 52, Weld, CO
Built 1958 Load: 30.6 t ADT: 14,000
US 85 ML
GoodOver: SH 52 ML
IN FORT LUPTON, Weld, CO
Built 1974 Load: 30.8 t ADT: 24,000
County Road 35
GoodOver: Evans Ditch No. 2
.6 Mi N of CR 38, Weld, CO
Built 2010 Load: 30.8 t ADT: 352
County Road 6
GoodOver: Lupton Bottom Ditch
0.8 Mi E of Co Rd 23, Weld, CO
Built 1989 Load: 30.9 t ADT: 3,861
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.