US Bridges

US 287 Ml over Laramie Poudre Canal

Fair

Larimer County, Colorado · 0.1 MI N of JCT SH 14 · Structure no. B-16-R

Built
1965
60 years old
Condition
Fair
inspected December 2023
Type
Slab
Concrete
Length
40 ft
1 main span
Daily traffic
6,500
2020 count
Owner
State
State Highway Agency

About this bridge

US 287 Ml over Laramie Poudre Canal is a concrete slab carrying US 287 Ml over Laramie Poudre Canal in Larimer County, Colorado. It was built in 1965, so it is 60 years old, older 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 6,500 vehicles a day, roughly 15% of them trucks, projected to reach 7,410 by 2040. The structure is 40 ft (12.2 m) long and 119 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 287 Ml
CrossesLaramie Poudre Canal
Location0.1 MI N of JCT SH 14
RouteU.S. Route 287C
Coordinates40.66485, -105.18899
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating24.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span37 ft (11.2 m)
Deck width119 ft (36.2 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,500 (2020)
Projected traffic7,410 by 2040
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Laramie Poudre Canal built?

It was built in 1965, making it 60 years old in 2025.

What condition is US 287 Ml over Laramie Poudre 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 December 2023.

How much traffic does US 287 Ml over Laramie Poudre Canal carry?

About 6,500 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is US 287 Ml over Laramie Poudre Canal?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.2 m) and a deck 119 ft wide.

Who owns US 287 Ml over Laramie Poudre Canal?

It is owned by the State Highway Agency.