Larimer County, CO

559 public highway bridges

Larimer County Bridge Snapshot

Larimer County, Colorado contains 559 public highway bridges in the FHWA National Bridge Inventory. Roughly 47.4% are rated “Good,” 46.3% “Fair,” 2% “Poor,” and 2% 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.

559
Total Bridges
47.4%
Good
2%
Poor
2%
Structurally Deficient

Condition Distribution

Good
47.4% (265)
Fair
46.3% (259)
Poor
2% (11)
SD
2% (11)

All Bridges (559)

LaPorte Avenue

Good

Over: New Mercer Canal

0.2 Mi E of Taft Hill, Larimer, CO

Built 2023 Load: 51.2 t ADT: 9,091

N. Wilson Avenue

Good

Over: Big Thompson River

0.45 Mi N of W. 1st St., Larimer, CO

Built 1999 Load: 51.5 t ADT: 8,814

Wilson Avenue

Good

Over: Big Barnes Ditch

0.8 Mi N of West First St, Larimer, CO

Built 2001 Load: 51.5 t ADT: 6,213

Sky Pond Drive

Good

Over: Greeley Loveland Canal

0.1 Mi W of Centerra Pkwy, Larimer, CO

Built 2005 Load: 51.9 t ADT: 4,797

County Road 1

Good

Over: Larimer County Canal

0.5 Miles N of Co Rd 48, Larimer, CO

Built 2001 Load: 51.9 t ADT: 473

Jerome Street

Good

Over: Lake Canal

200 Ft. N. of E Vine Dr., Larimer, CO

Built 2004 Load: 52.3 t ADT: 728

E. 37th Street

Good

Over: Dry Creek

0.1 Mi E. of Hwy 287, Larimer, CO

Built 2021 Load: 52.5 t ADT: 5,457

County Road 56

Good

Over: Larimer County Canal

50 Ft E of Co Rd 21C, Larimer, CO

Built 1989 Load: 53.1 t ADT: 642

S. Taft Hill Road

Good

Over: Mercer Ditch

At LaPorte Ave., Larimer, CO

Built 2004 Load: 53.6 t ADT: 11,742

Whitcomb Street

Good

Over: Arthur Ditch

Inter Whitcomb/magnolia, Larimer, CO

Built 2010 Load: 53.8 t ADT: 382

County Road 19

Good

Over: Cache La Poudre River

1.1 Mi N of Co Rd 48, Larimer, CO

Built 2003 Load: 53.8 t ADT: 5,617

Bein Street

Good

Over: Trib. to Dry Creek

30 Ft. S of Welch Ave., Larimer, CO

Built 1999 Load: 54.6 t ADT: 347

Souix Drive

Good

Over: Trib. to Dry Creek

30 Ft. S of Welch Ave, Larimer, CO

Built 1999 Load: 54.6 t ADT: 425

SH 392 ML

Good

Over: DRAW

1400 ft.W.of C-17-FK, Larimer, CO

Built 2015 Load: 55.1 t ADT: 15,000

County Road 38E

Good

Over: Redstone Creek

0.1 MI N. OF CO RD 25E, Larimer, CO

Built 2007 Load: 55.1 t ADT: 1,824

E County Road 52

Good

Over: Unnamed Drain

800 Ft E of I25, Larimer, CO

Built 2015 Load: 55.1 t ADT: 654

County Road 63

Good

Over: Fish Creek

3 Mi. S. of SH 36, Larimer, CO

Built 2017 Load: 55.1 t ADT: 856

Stover Street

Good

Over: Spring Creek

200 Ft N of Stuart Street, Larimer, CO

Built 1993 Load: 55.5 t ADT: 1,766

LaPorte Avenue

Good

Over: New Mercer Canal

0.08 Mi E of Taft Hill, Larimer, CO

Built 2023 Load: 55.7 t ADT: 9,091

CR 48 (Vine Dr.)

Good

Over: Larimer County Canal #2

0.2 Mi E of Taft Hill, Larimer, CO

Built 1966 Load: 56.8 t ADT: 7,096

County Road 11C

Good

Over: Boyd/Horseshoe Canal

1 Mi S of Co Rd 24E, Larimer, CO

Built 2015 Load: 58.3 t ADT: 7,723

Timberline Road

Good

Over: Cache La Poudre River

0.1 Mi S of Hwy 14, Larimer, CO

Built 1998 Load: 59.0 t ADT: 15,131

I25SR/MTN VISTA RD

Good

Over: BOX ELDER CRK OVRFLOW AR

0.1 MI. EAST OF I 25, Larimer, CO

Built 1985 Load: 62.4 t ADT: 8,266

North Madison Ave

Good

Over: Greeley Loveland Canal

0.5 Mi N of East 1st St, Larimer, CO

Built 2015 Load: 62.9 t ADT: 8,312

Rocky Mountain Ave

Good

Over: Greeley Loveland Canal

0.2 mi N of McWhinney St, Larimer, CO

Built 2000 Load: 65.4 t ADT: 12,268

County Road 46E

Good

Over: Pleasant Valley Lake Can

0.15 Mi W of Co Rd 21, Larimer, CO

Built 2005 Load: 65.8 t ADT: 1,623

Redwing Road

Good

Over: Larimer Co. Canal No. 2

100 Ft N of Flicker Dr., Larimer, CO

Built 1950 Load: 66.8 t ADT: 818

I 25 W FR. ROAD AR

Good

Over: BOXELDER CREEK

ACCESS TO REST AREA SR, Larimer, CO

Built 2008 Load: 68.0 t ADT: 773

County Road 27

Good

Over: Buckhorn Creek

8.7 Mi NW of Co Rd 38E, Larimer, CO

Built 2015 Load: 68.0 t ADT: 591

County Road 70

Good

Over: North Poudre Canal

0.8 Mi E of Co Rd 15, Larimer, CO

Built 1989 Load: 70.8 t ADT: 5,556

EB Harmony Road

Good

Over: Fossil Crk Res. Inlet

.7 MI west of JCT-I25, Larimer, CO

Built 2010 Load: 71.3 t ADT: 24,693

County Road 17

Good

Over: Poudre Valley Canal

0.5 Mi N of Co Rd 64, Larimer, CO

Built 1983 Load: 72.1 t ADT: 86

County Road 29

Good

Over: Home Supply Ditch

0.5 Mi N of US Hwy 34, Larimer, CO

Built 1981 Load: 78.2 t ADT: 397

SH 14 ML

Good

Over: BOX ELDER CREEK

0.4 MI E OF JCT I 25, Larimer, CO

Built 1985 Load: 83.6 t ADT: 19,000

RAMP TO I 25 NBND

Good

Over: BOX ELDER CRK OVERFLOW R

IN FORT COLLINS, Larimer, CO

Built 1985 Load: 87.0 t ADT: 894

Harmony Rd

Good

Over: Timnath Reservoir Outlet

20ft E of Three Bell Pkwy, Larimer, CO

Built 2016 Load: 87.5 t ADT: 24,815

County Road 17

Good

Over: Dry Creek

0.5 Mi N of Co Rd 4E, Larimer, CO

Built 1997 Load: 87.8 t ADT: 2,409

County Road 27

Good

Over: Buckhorn Creek

8.5 Mi NW of CR38E, Larimer, CO

Built 2015 Load: 88.6 t ADT: 591

Cty Rd17 (Shields)

Good

Over: Cache La Poudre River

0.5 Mi N of Vine Dr-CR48, Larimer, CO

Built 2015 Load: 88.8 t ADT: 8,674

CENTERRA PKWY

Good

Over: Future Bike Trail

1.2 MI N OF KENDALL ST, Larimer, CO

Built 2007 Load: 91.8 t ADT: 9,904

County Road 5

Good

Over: Fossil Cr Resv Outlet

1.5 Mi N of SH392, Larimer, CO

Built 2013 Load: 96.9 t ADT: 12,114

County Road 27

Good

Over: Buckhorn Creek

9.0 Mi NW of CR38E, Larimer, CO

Built 2015 Load: 97.4 t ADT: 576

County Road 22H

Good

Over: Handy Ditch

0.4 Mi E of Co Rd 31D, Larimer, CO

Built 1980 Load: 97.6 t ADT: 61

US 287 ML

Good

Over: Little Cache La Poudre D

NW OF FT. COLLINS, Larimer, CO

Built 1987 Load: 99.9 t ADT: 9,900

Timberline Road

Good

Over: Fossil Creek

0.2 Mi. N. Carpenter Rd., Larimer, CO

Built 2004 Load: 99.9 t ADT: 12,006

County Road 11

Good

Over: Poudre Valley Canal

0.2 Mi N of Co Rd 62E, Larimer, CO

Built 1986 Load: 99.9 t ADT: 279

County Road 24H

Good

Over: Indian Creek

0.1 Mi W of Co Rd 25E, Larimer, CO

Built 1996 Load: 99.9 t ADT: 1,315

County Road 64

Good

Over: Poudre Valley Canal

0.6 Mi E of Co Rd 11, Larimer, CO

Built 2003 Load: 99.9 t ADT: 2,015

US 34 ML WBND

Poor

Over: BARNES INLET CANAL

IN LOVELAND AT LAKE, Larimer, CO

Built 1933 Load: 18.3 t ADT: 12,500

County Road 45E

Poor

Over: Dale Creek

0.2 Mi Northwest of US Hw, Larimer, CO

Built 1932 Load: 22.7 t ADT: 16

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