Weld County, CO

614 public highway bridges

Weld County Bridge Snapshot

Weld County, Colorado contains 614 public highway bridges in the FHWA National Bridge Inventory. Roughly 35% are rated “Good,” 53.7% “Fair,” 4.1% “Poor,” and 4.1% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in CO are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

614

Total Bridges

35%

Good

4.1%

Poor

4.1%

Structurally Deficient

Condition Distribution

Good

35% (215)

Fair

53.7% (330)

Poor

4.1% (25)

SD

4.1% (25)

All Bridges (614)

Sort:

County Road 37

Over: Collins Lateral Canal

0.8 Mi N of Co Rd 86, Weld, CO

Built 1998 Load: 31.4 t ADT: 26

SH 392 ML

Over: GREELEY CANAL NO 2

8.7 MI E OF JCT SH 257, Weld, CO

Built 1955 Load: 31.6 t ADT: 6,500

14th Street

Over: Platteville Ditch

0.3 Mi W of US Hwy 85, Weld, CO

Built 1994 Load: 31.7 t ADT: 996

County Road 33

Over: Evans Ditch No. 2

0.5 Mi N of Co Rd 38, Weld, CO

Built 1978 Load: 31.8 t ADT: 372

County Road 84

Over: Collins Lateral Canal

0.1 Mi E of Co Rd 29, Weld, CO

Built 1987 Load: 31.8 t ADT: 84

US 34 ML WBND

Over: UP RR

IN GREELEY, Weld, CO

Built 1962 Load: 31.9 t ADT: 16,500

County Road 47

Over: Gilmore Ditch

0.6 Mi N of Co Rd 40, Weld, CO

Built 2000 Load: 31.9 t ADT: 331

County Road 136

Over: Crow Creek

0.05 Mi E of Co Rd 79, Weld, CO

Built 1991 Load: 32.0 t ADT: 335

County Road 78

Over: Owl Creek

0.5 Mi E of Co Rd 43, Weld, CO

Built 1997 Load: 32.1 t ADT: 86

County Road 90

Over: Coalbank Creek

0.3 Mi E of Co Rd 23, Weld, CO

Built 1980 Load: 32.1 t ADT: 150

County Road 19.5

Over: St. Vrain Creek

1.7 Mi N of Co Rd 34, Weld, CO

Built 1997 Load: 32.2 t ADT: 533

County Road 47

Over: Lone Tree Creek

0.2 Mi N of St Hwy 392, Weld, CO

Built 1990 Load: 32.3 t ADT: 801

I 25 ML SBND

Over: COUNTY ROAD

2.9 MI SO OF JCT SH 56, Weld, CO

Built 1961 Load: 32.4 t ADT: 36,000

I 25 ML

Over: GW RR

0.6 MI SO OF JCT SH 60, Weld, CO

Built 2023 Load: 32.4 t ADT: 36,000

County Road 48

Over: Gilmore Ditch

0.5 Mi E of Co Rd 47, Weld, CO

Built 1998 Load: 32.5 t ADT: 97

County Road 45

Over: Hudson Annex Canal

1.0 Mi N of Co Rd 6, Weld, CO

Built 1969 Load: 32.6 t ADT: 2,756

County Road 56

Over: Crow Creek

1.4 Mi E of Co Rd 57, Weld, CO

Built 1995 Load: 32.6 t ADT: 512

SH 392 ML

Over: GREELEY CANAL NO 2

6.2 MI E OF JCT US 85, Weld, CO

Built 1965 Load: 32.7 t ADT: 3,100

US 85 ML SBND

Over: LATHAM CANAL

JUST SO OF EVANS, Weld, CO

Built 2008 Load: 32.7 t ADT: 12,500

I 76 ML

Over: JIM CREEK

3.49 MI NW OF JCT SH 52, Weld, CO

Built 1961 Load: 32.7 t ADT: 16,000

Cheeseman Street

Over: Coal Creek

300 Yd E of Cattail St, Weld, CO

Built 1996 Load: 32.7 t ADT: 104

CR 1 (Co Line Rd)

Over: Lower Boulder Ditch

0.4 Mi N of Cheeseman St, Weld, CO

Built 1996 Load: 32.7 t ADT: 5,611

County Road 396

Over: Big Thompson River

0.2 Mi So of 54 ST RD, Weld, CO

Built 1965 Load: 32.7 t ADT: 132

County Road 33

Over: Union Ditch

50 Ft So of Co Rd 394, Weld, CO

Built 1940 Load: 32.7 t ADT: 369

49th Street (CR52)

Over: Ashcroft Draw

0.9 Mi E of 47th Ave, Weld, CO

Built 1965 Load: 32.7 t ADT: 5,459

4th Street

Over: Greeley No. 3 Ditch

2300 Blk-4th Street, Weld, CO

Built 1972 Load: 32.7 t ADT: 10,732

4th Street

Over: Greeley No. 3 Ditch

2400 Blk-4th Street, Weld, CO

Built 1970 Load: 32.7 t ADT: 10,732

4th Street

Over: Greeley No. 3 Ditch

2600 Blk-4th Street, Weld, CO

Built 1972 Load: 32.7 t ADT: 16,883

8th St (CR60.5)

Over: Sand Creek

2.3 Mi E of JCT 85 BYP, Weld, CO

Built 1967 Load: 32.7 t ADT: 6,476

12TH STREET

Over: GREELEY NO. 3 DITCH

200 FT E OF 16TH AVE, Weld, CO

Built 1952 Load: 32.7 t ADT: 385

County Road 4

Over: Fulton Ditch

0.9 Mi E of US Hwy 85, Weld, CO

Built 1970 Load: 32.7 t ADT: 94

County Road 6

Over: South Platte River

1.1 Mi E of Co Rd 23, Weld, CO

Built 1970 Load: 32.7 t ADT: 1,224

County Road 16.5

Over: Boulder Creek

0.8 Mi E of Co Rd 1, Weld, CO

Built 1983 Load: 32.7 t ADT: 572

County Road 17

Over: Big Thompson River

0.9 Mi N of Co Rd 50, Weld, CO

Built 1978 Load: 32.7 t ADT: 48

County Road 19

Over: Little Thompson River

0.1 Mi N of Co Rd 46.5, Weld, CO

Built 1960 Load: 32.7 t ADT: 224

County Road 21

Over: Big Dry Creek

0.5 Mi N of Co Rd 6, Weld, CO

Built 1970 Load: 32.7 t ADT: 313

83rd Avenue

Over: Cache La Poudre River

0.3 Mi N of Co Rd 62, Weld, CO

Built 1981 Load: 32.7 t ADT: 6,792

CR27.5-Two Rvr Pkw

Over: Big Thompson River

0.3 Mi N of Co Rd 396, Weld, CO

Built 1970 Load: 32.7 t ADT: 1,126

County Road 28

Over: South Platte River

0.7 Mi E of Co Rd 23, Weld, CO

Built 1965 Load: 32.7 t ADT: 1,008

County Road 31

Over: Evans Ditch No. 2

0.5 Mi N of Co Rd 36, Weld, CO

Built 1973 Load: 32.7 t ADT: 145

County Road 33

Over: Ashcroft Draw

Arrowhead Dr & 37th S, Weld, CO

Built 1970 Load: 32.7 t ADT: 532

35th Avenue

Over: Cache La Poudre River

0.6 Mi N of F S & 36t, Weld, CO

Built 1970 Load: 32.7 t ADT: 4,683

25th Avenue

Over: Cache La Poudre River

0.2 Mi S of W O St, Weld, CO

Built 1970 Load: 32.7 t ADT: 2,694

County Road 47

Over: Latham Ditch

0.9 Mi N of Co Rd 54, Weld, CO

Built 1991 Load: 32.7 t ADT: 718

County Road 49

Over: Lone Tree Creek

0.5 Mi N of St Hwy 392, Weld, CO

Built 1970 Load: 32.7 t ADT: 131

County Road 52

Over: Loveland Greeley Canal

0.7 Mi E of St Hwy 257, Weld, CO

Built 1968 Load: 32.7 t ADT: 207

County Road 54

Over: South Platte River

0.1 Mi E of Co Rd 41, Weld, CO

Built 1973 Load: 32.7 t ADT: 2,391

County Road 59

Over: Latham Ditch

0.6 Mi N of Co Rd 50, Weld, CO

Built 1973 Load: 32.7 t ADT: 116

County Road 61

Over: Diver. of S Platte River

1.6 Mi N of US Hwy 34, Weld, CO

Built 1970 Load: 32.7 t ADT: 744

County Road 72

Over: Lone Tree Creek

0.95 Mi E of Co Rd 41, Weld, CO

Built 1989 Load: 32.7 t ADT: 90

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026