US Bridges

US 287 Ml over Larimer County Canal

Fair

Larimer County, Colorado · 0.8 MI S of JCT SH 14 · Structure no. B-16-GJ

Built
1991
34 years old
Condition
Fair
inspected November 2021
Type
Culvert
Concrete
Length
82 ft
2 main spans
Daily traffic
8,900
2020 count
Owner
State
State Highway Agency

About this bridge

US 287 Ml over Larimer County Canal is a concrete culvert carrying US 287 Ml over Larimer County Canal in Larimer County, Colorado. It was built in 1991, so it is 34 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 8,900 vehicles a day, roughly 12% of them trucks, projected to reach 10,235 by 2040. The structure is 82 ft (25.1 m) long and 107 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesUS 287 Ml
CrossesLarimer County Canal
Location0.8 MI S of JCT SH 14
RouteU.S. Route 287C
CountyLarimer County
StateColorado
Coordinates40.65426, -105.17973
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating102.4 US tons
Inventory rating61.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length82 ft (25.1 m)
Longest span40 ft (12.1 m)
Deck width107 ft (32.5 m)
Roadway width104 ft (31.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,900 (2020)
Projected traffic10,235 by 2040
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 287 Ml over Larimer County Canal built?

It was built in 1991, making it 34 years old in 2025.

What condition is US 287 Ml over Larimer County Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2021.

How much traffic does US 287 Ml over Larimer County Canal carry?

About 8,900 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is US 287 Ml over Larimer County Canal?

The structure is 82 ft (25.1 m) long with a longest span of 40 ft (12.1 m) and a deck 107 ft wide.

Who owns US 287 Ml over Larimer County Canal?

It is owned by the State Highway Agency.