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)

County Road 80C

Good

Over: Sand Creek

0.7 Mi E of Co Rd 89, Larimer, CO

Built 1989 Load: 39.9 t ADT: 8

US 287 NBND

Good

Over: GREELEY-LOVELAND CANAL

LINCOLN AVE at 1st ST, Larimer, CO

Built 2002 Load: 40.2 t ADT: 4,950

County Road 67

Good

Over: Big Thompson River

0.2 Mi E of Co Rd 67E, Larimer, CO

Built 2009 Load: 40.2 t ADT: 5,445

US 287 ML

Good

Over: CACHE LA POUDRE RIVER

FORT COLLINS, Larimer, CO

Built 1995 Load: 40.3 t ADT: 27,000

US 34 ML

Good

Over: BIG THOMPSON RIVER

7 MI W OF LOVELAND, Larimer, CO

Built 2008 Load: 40.4 t ADT: 4,900

I 25 ML NBND

Good

Over: WINDSOR RES,CANAL DITCH

1.6 MI N OF JCT SH 14, Larimer, CO

Built 1950 Load: 41.1 t ADT: 19,000

Park Drive

Good

Over: Westerdall Lake Outlet

0.2 Mi E of Boise Avenue, Larimer, CO

Built 1993 Load: 41.2 t ADT: 633

SH 402 ML

Good

Over: I25 ML

4.2 MI E OF JCT US 287, Larimer, CO

Built 2020 Load: 42.1 t ADT: 86,000

N Lemay Ave & BNSF

Good

Over: E Vine Drive

2.77 MI west of JCT-I25, Larimer, CO

Built 2023 Load: 42.1 t ADT: 12,491

County Rd 25E

Good

Over: Redstone Creek

0.6 MI N of Swanson R. Rd, Larimer, CO

Built 2017 Load: 42.1 t ADT: 125

County Rd 3

Good

Over: Larimer County Canal

N of CR 50, Larimer, CO

Built 2017 Load: 42.1 t ADT: 305

County Road 18E

Good

Over: Cottonwood Creek

0.2 Mi W of Co Rd 31, Larimer, CO

Built 1996 Load: 42.3 t ADT: 1,911

SH 14 ML

Good

Over: STOVE PRAIRIE CREEK

15.9 MI W OF JCT US 287, Larimer, CO

Built 2017 Load: 43.1 t ADT: 1,200

Railroad Avenue

Good

Over: Big Thompson River

450 S Railroad Avenue, Larimer, CO

Built 1990 Load: 43.1 t ADT: 2,613

US 34 ML

Good

Over: BIG THOMPSON RIVER

3 MI W OF LOVELAND, Larimer, CO

Built 2005 Load: 43.2 t ADT: 6,900

US 34 ML

Good

Over: BNSF RR

0.1 MI W. OF US 287, Larimer, CO

Built 1999 Load: 43.7 t ADT: 26,000

I 25 ML NBND

Good

Over: CROSSROADS BLVD.

2 MI NO OF JCT US 34, Larimer, CO

Built 2017 Load: 43.7 t ADT: 38,000

I 25 ML SBND

Good

Over: CROSSROADS BLVD.

2 MI NO OF JCT US 34, Larimer, CO

Built 2017 Load: 43.7 t ADT: 38,000

Boise Avenue

Good

Over: Greeley Loveland Canal

0.2 N of E. 8th Street, Larimer, CO

Built 2001 Load: 43.7 t ADT: 10,915

Stage Coach

Good

Over: Little Thompson River

1 Mile N of N St Vrain Dr, Larimer, CO

Built 2019 Load: 44.1 t ADT: 331

County Road 47

Good

Over: Little Thomson River

0.1 Mi W of SH36, Larimer, CO

Built 2015 Load: 44.4 t ADT: 277

Remington Street

Good

Over: Spring Creek

Remington St/Spring Park, Larimer, CO

Built 1997 Load: 44.5 t ADT: 1,698

US 34 ML

Good

Over: Big Thompson River

4.8 MI E OF ESTES PARK, Larimer, CO

Built 2002 Load: 45.0 t ADT: 5,800

County Road 52E

Good

Over: Pleas Valley Lake Canal

0.0 Mi E of CR 25E, Larimer, CO

Built 2007 Load: 45.0 t ADT: 1,770

County Rd 43

Good

Over: N. Fork Big Thompson

0.5 MI E of Horseshoe Rd, Larimer, CO

Built 2016 Load: 45.4 t ADT: 415

County Rd 43

Good

Over: N. Fork Big Thompson

0.7 MI E of Horseshoe Rd, Larimer, CO

Built 2016 Load: 45.4 t ADT: 415

County Rd 43

Good

Over: N. Fork Big Thompson

1.0 MI E of Horseshoe Rd, Larimer, CO

Built 2016 Load: 45.4 t ADT: 415

County Rd 43

Good

Over: N. Fork Big Thompson

1.1 MI E of Horseshoe Rd, Larimer, CO

Built 2016 Load: 45.4 t ADT: 415

West Creek Road

Good

Over: West Creek

0.3 MI W of CR 43, Larimer, CO

Built 2016 Load: 45.4 t ADT: 7

West Creek Road

Good

Over: West Creek

0.2 MI W OF CR 43, Larimer, CO

Built 2017 Load: 45.4 t ADT: 7

West Creek Road

Good

Over: West Creek

0.1 MI W OF CR 43, Larimer, CO

Built 2016 Load: 45.4 t ADT: 21

Sycamore Street

Good

Over: Arthur Ditch

Wood and Sycamore Inters., Larimer, CO

Built 2023 Load: 45.7 t ADT: 2,277

County Road 15

Good

Over: Rawhide Creek Tributary

0.05 mi S of CO RD 82, Larimer, CO

Built 1980 Load: 45.9 t ADT: 349

County Road 11

Good

Over: Larimer County Canal

1.1 Mi N of Co Rd 54, Larimer, CO

Built 1962 Load: 46.2 t ADT: 88

County Road 27

Good

Over: Buckhorn Creek

0.1 Mi N of Co Rd 32C, Larimer, CO

Built 2021 Load: 46.3 t ADT: 1,495

County Road 56

Good

Over: Larimer County Canal

0.6 Mi E of Co Rd 11, Larimer, CO

Built 2004 Load: 46.3 t ADT: 112

County Road 17

Good

Over: Larimer and Weld Canal

1.0 Mi N of Co Rd 48, Larimer, CO

Built 2005 Load: 46.4 t ADT: 8,985

County Road 27

Good

Over: Buckhorn Creek

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

Built 2014 Load: 46.7 t ADT: 569

US 287 ML

Good

Over: LITTLE THOMPSON RIVER

5.1 MI N OF JCT SH 66, Larimer, CO

Built 1999 Load: 47.1 t ADT: 18,000

SH 14 ML

Good

Over: CACHE LA POUDRE RIVER

1 MI E OF JCT 287, Larimer, CO

Built 2015 Load: 47.6 t ADT: 26,000

Centerra Parkway

Good

Over: Greeley Loveland Canal

0.1 Mi N of US Hwy 34, Larimer, CO

Built 2005 Load: 47.6 t ADT: 13,787

Riverside Drive

Good

Over: Spring Creek

0.2 Mi S of Prospect Rd, Larimer, CO

Built 2019 Load: 48.0 t ADT: 1,455

I 25 ML NB+SB+SR

Good

Over: GREELEY-LOVELAND DITCH

0.6 MI NO OF JCT US 34, Larimer, CO

Built 1947 Load: 48.1 t ADT: 38,000

Third Street

Good

Over: Boxelder Creek

0.3 M S of R. Reagan Ave., Larimer, CO

Built 2005 Load: 48.3 t ADT: 1,337

Redwood Street

Good

Over: Lake Canal

At Cajetan Street, Larimer, CO

Built 2004 Load: 49.0 t ADT: 1,585

Access Road

Good

Over: Big Thompson River

30 ft S of US Hwy 34, Larimer, CO

Built 2019 Load: 49.6 t ADT: 5

Moodie Street

Good

Over: Big Thompson River

25 Ft S of US Hwy 34, Larimer, CO

Built 2019 Load: 49.6 t ADT: 6

County Road 70

Good

Over: North Poudre Ditch

0.6 Mi E of Co Rd 17, Larimer, CO

Built 2019 Load: 50.5 t ADT: 5,176

County Road 38E

Good

Over: Charles Hansen FD Canal

0.1 MI S COUNTY RD 25E, Larimer, CO

Built 2007 Load: 50.9 t ADT: 1,744

Centre Street

Good

Over: New Mercer Canal

0.1 M E of Worthington St, Larimer, CO

Built 1989 Load: 51.0 t ADT: 5,256

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