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 13

Good

Over: Larimer County Canal

125 Ft N of Co Rd 54, Larimer, CO

Built 1988 Load: 32.2 t ADT: 388

County Road 7

Good

Over: North Poudre Canal

0.8 Mi E of Co Rd 68, Larimer, CO

Built 2011 Load: 32.2 t ADT: 984

I 25 ML NBND

Good

Over: CACHE LA POUDRE RIVER

8.5 MI N OF JCT US 34, Larimer, CO

Built 2022 Load: 32.4 t ADT: 24,500

I 25 ML SBND

Good

Over: CACHE LA POUDRE RIVER

3.5 MI S OF JCT SH 14, Larimer, CO

Built 2023 Load: 32.4 t ADT: 24,500

I 25 ML NBND

Good

Over: RR SPUR

1.1 MI N OF JCT SH 68, Larimer, CO

Built 2022 Load: 32.4 t ADT: 24,500

I25 ML NBND

Good

Over: POUDRE RIVER FLOODPLAIN

0.2 MI SO OF KECHTER RD, Larimer, CO

Built 2022 Load: 32.4 t ADT: 90,000

I25 ML SBND

Good

Over: POUDRE RIVER FLOODPLAIN

0.2 MI S OF KECHTER RD, Larimer, CO

Built 2023 Load: 32.4 t ADT: 90,000

US 34 ML

Good

Over: BIG THOMPSON RIVER

2.8 MI FROM JCT CO RD 43, Larimer, CO

Built 2018 Load: 32.4 t ADT: 4,900

Taft Avenue

Good

Over: Big Barnes Ditch

200 ft N of W 10th St, Larimer, CO

Built 2019 Load: 32.4 t ADT: 19,446

S Railroad Ave

Good

Over: Flood plain

0.6 mi N of CR 18, Larimer, CO

Built 2019 Load: 32.4 t ADT: 2,443

County Rd 41G

Good

Over: N. Fork Big Thompson R.

N of CR 43, Larimer, CO

Built 2016 Load: 32.4 t ADT: 674

CR 50 (Willox Ln)

Good

Over: Larimer & Weld Canal

0.2 Mi E of Co Rd 17, Larimer, CO

Built 2016 Load: 32.4 t ADT: 6,416

Jefferson Ave.

Good

Over: Boxelder Creek

West of 3rd Avenue, Larimer, CO

Built 2005 Load: 32.4 t ADT: 2,596

I25/CNTR LOAD BUS

Good

Over: PEDESTRIAN UNDERPASS

1.0 MI N OF JCT US 34, Larimer, CO

Built 2021 Load: 32.7 t ADT: 34,500

Bryan Avenue

Good

Over: Larimer Co Canal No. 2

0.2 Mi N of Mulberry St, Larimer, CO

Built 2015 Load: 32.7 t ADT: 2,362

Chase Drive

Good

Over: Fossil Ck Resv Inlet

.25 Mi SW Drake ,Ziegler, Larimer, CO

Built 2008 Load: 32.7 t ADT: 78

Corbett Drive

Good

Over: McClellands Channel

100 Ft N of Saddle Crk Dr, Larimer, CO

Built 2001 Load: 32.7 t ADT: 1,058

Centre Ave

Good

Over: Spring Creek

.1Mi S of Bay Dr., Larimer, CO

Built 2010 Load: 32.7 t ADT: 7,889

East Vine Drive

Good

Over: Dry Creek

0.3 Mi. E. of Lemay, Larimer, CO

Built 2006 Load: 32.7 t ADT: 6,115

Glenmoor Drive

Good

Over: Local Drainage

0.1 MI N of Plum St, Larimer, CO

Built 2013 Load: 32.7 t ADT: 469

Kinnison Drive

Good

Over: Pleasant Valley Canal

Just E of Taft Hill Road, Larimer, CO

Built 2009 Load: 32.7 t ADT: 18

Lincoln Avenue

Good

Over: Cache La Poudre River

50 E of Willow Street, Larimer, CO

Built 2017 Load: 32.7 t ADT: 7,199

Mulberry Street

Good

Over: Mercer Ditch

Just E. of Crestmore, Larimer, CO

Built 2016 Load: 32.7 t ADT: 13,247

Old Mill Road

Good

Over: McClellands Channel

200 Ft. N of Saddle Ck Dr, Larimer, CO

Built 2002 Load: 32.7 t ADT: 506

Prospect Avenue

Good

Over: Box Elder Creek

0.5 Mi West of I25, Larimer, CO

Built 2016 Load: 32.7 t ADT: 20,967

Sherwood/Mulberry

Good

Over: Arthur Ditch

Sherwood at Mulberry, Larimer, CO

Built 2005 Load: 32.7 t ADT: 531

Rigden Pkwy

Good

Over: Fossil Ck Resv Inlet

.5 MI SW of Drake/Ziegler, Larimer, CO

Built 2008 Load: 32.7 t ADT: 998

William Neal Pkwy

Good

Over: Fossil Ck Resv Inlet

E of Ziegler and W CR9, Larimer, CO

Built 2008 Load: 32.7 t

Ziegler Road

Good

Over: Fossil Ck Resv Inlet

.1 MI N William N. Pkwy, Larimer, CO

Built 2008 Load: 32.7 t ADT: 15,977

57th Street

Good

Over: Louden Ditch

W of Garfield Ave/SH287, Larimer, CO

Built 2007 Load: 32.7 t ADT: 11,414

Denver Avenue

Good

Over: Greeley Loveland Canal

0.1 Mi N of US Hwy 34, Larimer, CO

Built 1985 Load: 32.7 t ADT: 3,035

SW 14th Street

Good

Over: Misc Drainage Basin

600 FT W of Katie Ave, Larimer, CO

Built 1901 Load: 32.7 t ADT: 6,085

County Road 14

Good

Over: Home Supply Ditch

JUST W. OF CR 21, Larimer, CO

Built 2007 Load: 32.7 t ADT: 4,191

County Road 24

Good

Over: Buckhorn Creek

0.8 Mi E of Co Rd 27, Larimer, CO

Built 1965 Load: 32.7 t ADT: 437

County Road 31D

Good

Over: Handy Ditch

50 ft N of Co Rd 22H, Larimer, CO

Built 1951 Load: 32.7 t ADT: 250

County Road 43

Good

Over: N Fork Big Thompson Rive

3.3 Mi SE of Co Rd 51B, Larimer, CO

Built 2016 Load: 32.7 t ADT: 349

County Road 9

Good

Over: Larimer County Canal

0.4 Mi N of Co Rd 56, Larimer, CO

Built 2018 Load: 32.7 t ADT: 3,250

Access Road

Good

Over: Big Thompson River

25 ft S on US 34, Larimer, CO

Built 2018 Load: 32.7 t ADT: 16

Bluff Lane

Good

Over: Handy Ditch

0.5 Mi W of S CR 23, Larimer, CO

Built 2016 Load: 32.7 t ADT: 96

Bluff Lane

Good

Over: Home Supply Ditch

300 FT W of S CR 23, Larimer, CO

Built 2016 Load: 32.7 t ADT: 77

Stanton Ridge Road

Good

Over: Unnamed Canal

S of E CR 32, Larimer, CO

Built 2016 Load: 32.7 t ADT: 262

Willows Bend Dr.

Good

Over: Handy Ditch

0.4 Mi S of W CR 20, Larimer, CO

Built 2016 Load: 32.7 t ADT: 22

Mount Owens Street

Good

Over: Local Drainage

10 Ft W of Frontage Road, Larimer, CO

Built 2005 Load: 32.7 t ADT: 524

Ronald Reagan Ave.

Good

Over: Local Drainage

10 Ft W Frontage Road, Larimer, CO

Built 2005 Load: 32.7 t ADT: 1,564

Namaqua Avenue

Good

Over: Big Barnes Ditch

600 Ft S of US Hwy 34, Larimer, CO

Built 1992 Load: 32.8 t ADT: 4,626

US 287 ML

Good

Over: DRY CREEK

7.2 MI N OF JCT SH 66, Larimer, CO

Built 2005 Load: 32.9 t ADT: 18,000

Wildbriar Lane

Good

Over: Big Thompson River

0.2 Mi NW Cedar Cove Rd, Larimer, CO

Built 2019 Load: 33.0 t ADT: 5

US 287 ML

Good

Over: DRAW

0.9 MI N OF JCT SH 1, Larimer, CO

Built 2012 Load: 33.7 t ADT: 11,000

Mc Clelland Drive

Good

Over: Larimer County Canal #2

20 ft S. W foothill Pkwy, Larimer, CO

Built 2019 Load: 33.7 t ADT: 4,020

Prospect Road

Good

Over: New Mercer Canal

0.1 Mi E of Brentwood Dr, Larimer, CO

Built 2014 Load: 33.7 t ADT: 15,960

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

Related

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