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)

Elizabeth Street

Fair

Over: Larimer Co. Canal No. 2

200 Ft E of Bryan Ave, Larimer, CO

Built 1960 Load: 32.7 t ADT: 12,803

Fossil Creek Pkwy.

Fair

Over: Fossil Creek

.1 Mi N Hunt. Hill Dr., Larimer, CO

Built 2001 Load: 32.7 t ADT: 1,646

Heatheridge Rd.

Fair

Over: Larimer Co. Canal No. 2

0.1 Mi N of Stuart St, Larimer, CO

Built 1972 Load: 32.7 t ADT: 2,097

Heatheridge Street

Fair

Over: Importation Channel

0.2 Mi N of Stuart Street, Larimer, CO

Built 1992 Load: 32.7 t ADT: 2,097

Laporte Avenue

Fair

Over: New Mercer Ditch

0.1 Mi W of CR 11, Larimer, CO

Built 1965 Load: 32.7 t ADT: 6,487

Lady Moon Drive

Fair

Over: McClellands Channel

200 Ft. N. Kechter Road, Larimer, CO

Built 2003 Load: 32.7 t ADT: 2,661

LeMay Avenue

Fair

Over: Spring Creek

0.1 Mi N of Stuart St, Larimer, CO

Built 1975 Load: 32.7 t ADT: 26,981

South LeMay Avenue

Fair

Over: Fossil Creek

0.8 Mi N of E. Trilby Rd, Larimer, CO

Built 1985 Load: 32.7 t ADT: 10,956

South LeMay Avenue

Fair

Over: Fossil Creek Tributary

0.2 Mi N of Trilby Road, Larimer, CO

Built 1986 Load: 32.7 t ADT: 12,185

LeMay Avenue

Fair

Over: Larimer and Weld Canal

1.2 Mi N of Vine Drive, Larimer, CO

Built 1958 Load: 32.7 t ADT: 8,064

Morsman Drive

Fair

Over: New Mercer Canal

100 Ft W of Meadowlark Av, Larimer, CO

Built 1968 Load: 32.7 t ADT: 660

Mitchell Drive

Fair

Over: Larimer Co. Canal No. 2

0.1 Mi. S of Horsetooth, Larimer, CO

Built 1992 Load: 32.7 t ADT: 1,749

Mulberry Street

Fair

Over: Larimer Co. Canal No. 2

50 Ft E of Bryan Avenue, Larimer, CO

Built 1920 Load: 32.7 t ADT: 12,947

Mulberry St/CR 46

Fair

Over: Pleas. Valley Lake Canal

0.1 M E of Overland Trail, Larimer, CO

Built 1930 Load: 32.7 t ADT: 4,030

Palmer Dr

Fair

Over: Spillway

0.1 West of Hogan Dr, Larimer, CO

Built 2010 Load: 32.7 t

Plum Street

Fair

Over: Larimer Co. Canal No. 2

0.1 Mi W of City Park Dr., Larimer, CO

Built 1950 Load: 32.7 t ADT: 2,970

Shields Street

Fair

Over: Spring Creek

0.1 Mi N of Hill Pond Rd, Larimer, CO

Built 1976 Load: 32.7 t ADT: 26,932

Skysail Lane

Fair

Over: Larimer Co. Canal No. 2

200 Ft E of Spinnaker, Larimer, CO

Built 1980 Load: 32.7 t ADT: 343

West Swallow Rd

Fair

Over: Larimer Co. Canal No. 2

50 ft W of McClelland Dr, Larimer, CO

Built 1982 Load: 32.7 t ADT: 4,588

Waterglen Drive

Fair

Over: Local Drainage

Just N of Vine Dr, Larimer, CO

Built 1999 Load: 32.7 t ADT: 2,632

Ziegler Drive

Fair

Over: McClelland's Channel

200 Ft. N. Sage Cr. Rd., Larimer, CO

Built 2004 Load: 32.7 t ADT: 11,572

Railroad Avenue

Fair

Over: Greeley Loveland Canal

0.1 Mi N of East First St, Larimer, CO

Built 1917 Load: 32.7 t ADT: 1,010

West 1st Street

Fair

Over: Transfer Ditch

20 Ft E of Lu Ann Drive, Larimer, CO

Built 1930 Load: 32.7 t ADT: 6,800

West 29th Street

Fair

Over: L. Loveland Outlet Canal

425 W 29th Street, Larimer, CO

Built 1925 Load: 32.7 t ADT: 13,399

East 4th Street

Fair

Over: Greeley Loveland Canal

0.1 MI W of St. Louis AV, Larimer, CO

Built 1921 Load: 32.7 t ADT: 2,108

County Road 11H

Fair

Over: Big Thompson River

0.3 Mi N of St Hwy 402, Larimer, CO

Built 1966 Load: 32.7 t ADT: 8,892

County Road 13E

Fair

Over: Love/Horse Shoe Canal

0.3 Mi N of Co Rd 24E, Larimer, CO

Built 1937 Load: 32.7 t ADT: 6,823

County Road 15

Fair

Over: North Poudre Canal

0.9 Mi N of Co Rd 68, Larimer, CO

Built 1930 Load: 32.7 t ADT: 1,103

County Road 17

Fair

Over: Jackson Ditch

0.2 Mi No of Co Rd 54, Larimer, CO

Built 1986 Load: 32.7 t ADT: 2,822

County Road 25G

Fair

Over: Hansen Feeder Canal

0.2 Mi W of Co Rd 23, Larimer, CO

Built 1960 Load: 32.7 t ADT: 1,428

County Road 29C

Fair

Over: Poudre Valley Canal

150 Ft N of St Hwy 14, Larimer, CO

Built 1960 Load: 32.7 t ADT: 166

County Road 31D

Fair

Over: Big Thompson River

0.1 Mi N of Co Rd 22H, Larimer, CO

Built 1978 Load: 32.7 t ADT: 248

County Road 44

Fair

Over: Larimer & Weld Canal

Jct. with Co Rd 1, Larimer, CO

Built 1950 Load: 32.7 t ADT: 3,037

CO50E Bingham Hill

Fair

Over: Larimer Co. Canal No. 2

.2 Mi W of CR 21C, Larimer, CO

Built 1962 Load: 32.7 t ADT: 1,099

County Road 6C

Fair

Over: Little Thompson River

0.8 Mi N of Co Rd 15, Larimer, CO

Built 1960 Load: 32.7 t ADT: 130

County Road 70

Fair

Over: North Poudre Canal

0.1 Mi E of Co Rd 15, Larimer, CO

Built 1940 Load: 32.7 t ADT: 6,105

Country View Court

Fair

Over: New Ish Ditch

E of S CR 21, Larimer, CO

Built 2016 Load: 32.7 t ADT: 55

Rock Canyon Road

Fair

Over: Big Thompson River

10 Ft W of US Hwy 34, Larimer, CO

Built 1977 Load: 32.7 t ADT: 17

Willow Vista Court

Fair

Over: Home Supply Creek

0.2 Mi E of W 1st St, Larimer, CO

Built 2016 Load: 32.7 t ADT: 67

McClellan Road

Fair

Over: Local Drainage

Just north of CR 60, Larimer, CO

Built 2007 Load: 32.7 t ADT: 1,504

S. Shields St

Fair

Over: Larimer Co Canal No 2

0.2 Mi N of Drake St, Larimer, CO

Built 2013 Load: 33.4 t ADT: 26,815

County Road 56

Fair

Over: Larimer County Canal

0.3 Mi E of Co Rd 11, Larimer, CO

Built 1999 Load: 33.4 t ADT: 112

Fall River Lane

Fair

Over: Fall River

250 Ft S of W Elkhorn, Larimer, CO

Built 1983 Load: 33.5 t ADT: 202

I 25 ML

Fair

Over: BOX ELDER CREEK

0.5 MI S OF JCT SH 14, Larimer, CO

Built 1968 Load: 33.7 t ADT: 55,000

Clearwater Drive

Fair

Over: Local Drainage

N. of Valley Oak Dr., Larimer, CO

Built 2007 Load: 33.7 t ADT: 619

County Road 24H

Fair

Over: Buckhorn Creek

0.6 Mi E of Co Rd 27, Larimer, CO

Built 1985 Load: 34.3 t ADT: 329

I 25 ML NBND

Fair

Over: BNSF RR

0.5 MI N OF JCT SH 14, Larimer, CO

Built 1966 Load: 34.4 t ADT: 19,000

County Road 103

Fair

Over: Laramie River

0.3 Mi E of Co Rd 190, Larimer, CO

Built 1991 Load: 34.4 t ADT: 53

LeMay Avenue

Fair

Over: Cache La Poudre River

0.1 Mi N of Riverside Ave, Larimer, CO

Built 1980 Load: 34.5 t ADT: 22,461

County Road 27

Fair

Over: Buckhorn Creek

2.1 Mi NW of Mason St, Larimer, CO

Built 1967 Load: 34.5 t ADT: 770

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